Goods & Services

railcar vehicle component parts, namely, couplers

Abstract

A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.

IPC Classes  ?

• B22C 7/06 - Core boxes
• B22C 9/10 - CoresManufacture or installation of cores
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B61G 3/28 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads rigidly connected by locks consisting of slidable pins
• B61G 7/00 - Details or accessories
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art

Abstract

A railcar coupler may include a coupler head comprising a shank and a head portion, the head portion defining a cavity for receiving a knuckle, a thrower, and a lock. The cavity can include a top pulling lug, a bottom pulling lug, and a thrower retaining lug. The top pulling lug can be configured to engage an upper knuckle pulling lug, and the bottom pulling lug being can be configured to engage a lower knuckle pulling lug. During operation of the railcar coupler, the ratio of the stress between the top pulling lug and the bottom pulling lug can be configured to be better balanced to help extend the life of the railcar coupler assembly.

IPC Classes  ?

• B61G 3/08 - Control devices, e.g. for uncoupling
• B61G 3/06 - Knuckle-locking devices

Abstract

A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.

IPC Classes  ?

• B61G 7/00 - Details or accessories
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 7/06 - Core boxes
• B22C 9/10 - CoresManufacture or installation of cores
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art
• B61G 3/28 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads rigidly connected by locks consisting of slidable pins

Abstract

A railcar coupler may include a coupler head comprising a shank (106) and a head portion (102), the head portion defining a cavity (104) for receiving a knuckle (108), a thrower (110), and a lock (112). The cavity can include a top pulling lug (130a), a bottom pulling lug (130b), and a thrower retaining lug (140). The top pulling lug can be configured to engage an upper knuckle pulling lug (109a), and the bottom pulling lug being can be configured to engage a lower knuckle pulling lug (109b). During operation of the railcar coupler, the ratio of the stress between the top pulling lug and the bottom pulling lug can be configured to be better balanced to help extend the life of the railcar coupler assembly.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B61G 3/06 - Knuckle-locking devices

Abstract

A railcar coupler may include a coupler head comprising a shank (106) and a head portion (102), the head portion defining a cavity (104) for receiving a knuckle (108), a thrower (110), and a lock (112). The cavity can include a top pulling lug (130a), a bottom pulling lug (130b), and a thrower retaining lug (140). The top pulling lug can be configured to engage an upper knuckle pulling lug (109a), and the bottom pulling lug being can be configured to engage a lower knuckle pulling lug (109b). During operation of the railcar coupler, the ratio of the stress between the top pulling lug and the bottom pulling lug can be configured to be better balanced to help extend the life of the railcar coupler assembly.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B61G 3/06 - Knuckle-locking devices

Abstract

A railcar coupler may include a coupler head comprising a shank and a head portion, the head portion defining a cavity for receiving a knuckle, a thrower, and a lock. The cavity can include a top pulling lug, a bottom pulling lug, and a thrower retaining lug. The top pulling lug can be configured to engage an upper knuckle pulling lug, and the bottom pulling lug being can be configured to engage a lower knuckle pulling lug. During operation of the railcar coupler, the ratio of the stress between the top pulling lug and the bottom pulling lug can be configured to be better balanced to help extend the life of the railcar coupler assembly.

IPC Classes  ?

• B61G 3/08 - Control devices, e.g. for uncoupling
• B61G 3/06 - Knuckle-locking devices

Abstract

A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.

IPC Classes  ?

• B61G 7/00 - Details or accessories
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 7/06 - Core boxes
• B22C 9/10 - CoresManufacture or installation of cores
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art

Abstract

A knuckle may include a throat portion having a throat side wall with at least three sections, a first section closest to the knuckle tail, a third section closest to the knuckle pulling face, and a second section between said first and third sections. The wall thickness of said first section may be less than 10% different than the wall thickness of said second section. The throat portion may also include a tail stop side wall with at least three sections, a first section closest to the knuckle tail, a third section closest to the knuckle pulling face, and a second section between said first and third sections. The wall thickness of said first section may be less than 10% different than the wall thickness of said second section.

IPC Classes  ?

• B61G 7/00 - Details or accessories
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A railroad coupler assembly having at least a body and a knuckle both formed in a no-bake manufacturing process, the body and the knuckle having dimensional tolerances of distances between features that wear during operation that are about half those obtained from a body and a knuckle manufactured by a green sand process, resulting in increased fatigue life compared to the body and the knuckle manufactured by a green sand process.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/22 - Moulds for peculiarly-shaped castings
• B22C 1/00 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds

Abstract

A railroad coupler assembly having at least a body and a knuckle both formed in a no-bake manufacturing process, the body and the knuckle having dimensional tolerances of distances between features that wear during operation that are about half those obtained from a body and a knuckle manufactured by a green sand process, resulting in increased fatigue life compared to the body and the knuckle manufactured by a green sand process.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/22 - Moulds for peculiarly-shaped castings

Abstract

A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.

IPC Classes  ?

• B61G 7/00 - Details or accessories
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 7/06 - Core boxes
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A knuckle may include a throat portion having a throat side wall with at least three sections, a first section closest to the knuckle tail, a third section closest to the knuckle pulling face, and a second section between said first and third sections. The wall thickness of said first section may be less than 10% different than the wall thickness of said second section. The throat portion may also include a tail stop side wall with at least three sections, a first section closest to the knuckle tail, a third section closest to the knuckle pulling face, and a second section between said first and third sections. The wall thickness of said first section may be less than 10% different than the wall thickness of said second section.

IPC Classes  ?

• B61G 7/00 - Details or accessories
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A railroad coupler assembly having at least a body and a knuckle both formed in a no-bake manufacturing process, the body and the knuckle having dimensional tolerances of distances between features that wear during operation that are about half those obtained from a body and a knuckle manufactured by a green sand process, resulting in increased fatigue life compared to the body and the knuckle manufactured by a green sand process. The body and the knuckle resulting from the no-bake manufacturing process have no observable laps, scabs, chaplets or welding in critical areas of the body and knuckle, which are reflected in surface conditions matching SCRATA (Steel Castings Research and Trade Association) values of: D1 (laps); E1 (scabs); F1 (chaplets); and J1 (welds).

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

A coupler body for a railcar coupler, said coupler body comprising at least one central datum feature that does not wear during coupler use.

IPC Classes  ?

• B61G 5/00 - Couplings not otherwise provided for

Abstract

A casting apparatus for casting a railcar coupler, which includes a shank portion and a head portion, includes cope and drag portions that define an external shape of the coupler, The casting apparatus also includes one or more cores that define an interior of the shank portion and a separate head core with an exterior that defines an interior of the head portion that includes lock chamber, guard arm side portion, and knuckle side portions of the head. The head core is a single piece with a hollow center section that defines a front face gating system that includes at least one in- gate configured to direct molten material to top and bottom regions of the head to define the lock chamber, guard arm side portion, and knuckle side of the head.

IPC Classes  ?

• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/22 - Moulds for peculiarly-shaped castings
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art

Abstract

A main body core box assembly for creating coupler head cores which are attachable to various shank cores includes a main body core box including two halves, each half including a pattern configured to form the outer walls of a first head core having a first shank core. A plug is insertable into an end of respective patterns to form a second, alternative head core having a first half of a connection joint attachable to a second shank core that includes a second half of the connection joint, the second shank core being different than the first shank core. The first half of the connection joint may be a male connector, where the plug includes a recess having an angled surface to create a notch on the male connector. The second half of the connection joint may be a female connector with a raised surface corresponding to the notch.

IPC Classes  ?

• B22C 7/06 - Core boxes
• B22C 9/10 - CoresManufacture or installation of cores
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A casting assembly for manufacturing a lock of a railcar coupler includes drag and cope portions of a first mold that defines exterior surfaces of the lock, wherein the first mold comprises a first molding material. The casting assembly also includes a second mold formed of a second molding material. The second mold defines a cavity with an interior surface that substantially complements an exterior surface of the first mold. A down sprue is formed in the second mold. A gating system is formed in the second mold that and is in fluid communication with the down sprue. An in-gate is formed in the second mold and is in fluid communication with the gating system and the first mold.

IPC Classes  ?

• B22C 9/00 - Moulds or coresMoulding processes

Abstract

A casting assembly for manufacturing a lock of a railcar coupler includes drag and cope portions of a first mold that defines exterior surfaces of the lock, wherein the first mold comprises a first molding material. The casting assembly also includes a second mold formed of a second molding material. The second mold defines a cavity with an interior surface that substantially complements an exterior surface of the first mold. A down sprue is formed in the second mold. A gating system is formed in the second mold that and is in fluid communication with the down sprue. An in-gate is formed in the second mold and is in fluid communication with the gating system and the first mold.

IPC Classes  ?

• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/22 - Moulds for peculiarly-shaped castings
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art

Abstract

A casting apparatus for casting a railcar coupler, which includes a shank portion and a head portion, includes cope and drag portions that define an external shape of the coupler. The casting apparatus also includes one or more cores that define an interior of the shank portion and a separate head core with an exterior that defines an interior of the head portion that includes lock chamber, guard arm side portion, and knuckle side portions of the head. The head core is a single piece with a hollow center section that defines a front face gating system that includes at least one in-gate configured to direct molten material to top and bottom regions of the head to define the lock chamber, guard arm side portion, and knuckle side of the head.

IPC Classes  ?

• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A casting apparatus for casting a railcar coupler, which includes a shank portion and a head portion, includes cope and drag portions that define an external shape of the coupler, The casting apparatus also includes one or more cores that define an interior of the shank portion and a separate head core with an exterior that defines an interior of the head portion that includes lock chamber, guard arm side portion, and knuckle side portions of the head. The head core is a single piece with a hollow center section that defines a front face gating system that includes at least one in- gate configured to direct molten material to top and bottom regions of the head to define the lock chamber, guard arm side portion, and knuckle side of the head.

IPC Classes  ?

• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates

Abstract

A method for manufacturing a railcar coupler knuckle includes, before casting, positioning an external chill within a cope mold portion and a drag mold portion offset from and adjacent internal walls of a pulling face and a throat of the cope and drag mold portions, thus producing a casting with reduced micro-shrinkage in at least the throat, a high-stress section of the casting. Use of subsurface chills produces an improved surface with fewer inclusions when compared to an equivalent surface produced in a process without use of a subsurface chill. The external chill may be a cone chill of a larger size to improve cooling and solidification at and below the surface. The external chill may also be a cylindrical and/or oblong chill with a tapered design that may correspond to the internal walls of the cope and drag mold portions between the pulling face and the throat.

IPC Classes  ?

• B22D 15/04 - Machines or apparatus for chill casting
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art
• B22D 27/04 - Influencing the temperature of the metal, e.g. by heating or cooling the mould
• B61G 3/06 - Knuckle-locking devices
• B22C 9/02 - Sand moulds or like moulds for shaped castings

Abstract

A method for manufacturing a railcar coupler knuckle includes, before casting, positioning an external chill within a cope mold portion and a drag mold portion offset from and adjacent internal walls of a pulling face and a throat of the cope and drag mold portions, thus producing a casting with reduced micro-shrinkage in at least the throat, a high-stress section of the casting. Use of subsurface chills produces an improved surface with fewer inclusions when compared to an equivalent surface produced in a process without use of a subsurface chill. The external chill may be a cone chill of a larger size to improve cooling and solidification at and below the surface. The external chill may also be a cylindrical and/or oblong chill with a tapered design that may correspond to the internal walls of the cope and drag mold portions between the pulling face and the throat.

IPC Classes  ?

• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/22 - Moulds for peculiarly-shaped castings
• B22D 15/00 - Casting using a mould or core of which a part significant to the process of high thermal conductivity, e.g. chill castingMoulds or accessories specially adapted therefor
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A method for manufacturing a railcar coupler knuckle includes, before casting, positioning an external chill within a cope mold portion and a drag mold portion offset from and adjacent internal walls of a pulling face and a throat of the cope and drag mold portions, thus producing a casting with reduced micro-shrinkage in at least the throat, a high-stress section of the casting. Use of subsurface chills produces an improved surface with fewer inclusions when compared to an equivalent surface produced in a process without use of a subsurface chill. The external chill may be a cone chill of a larger size to improve cooling and solidification at and below the surface. The external chill may also be a cylindrical and/or oblong chill with a tapered design that may correspond to the internal walls of the cope and drag mold portions between the pulling face and the throat.

IPC Classes  ?

• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22D 15/00 - Casting using a mould or core of which a part significant to the process of high thermal conductivity, e.g. chill castingMoulds or accessories specially adapted therefor
• B22D 27/04 - Influencing the temperature of the metal, e.g. by heating or cooling the mould
• B61G 3/06 - Knuckle-locking devices

Abstract

A method for casting at least one thrower for a railcar coupler includes creating a mold box that is vertically parted in halves, each half defining a side of at least one thrower cavity and that includes at least a portion of a sprue at a location above the at least one thrower cavity, the at least one thrower cavity also being oriented vertically; pouring molten metal into the mold box through the sprue and into the at least one thrower cavity while the mold is oriented vertically; and shaking out the mold box to release the at least one thrower after the at least one thrower has cooled. Creating the mold box may be executed through a cold shell process. The halves of the mold box may include reflective images of the sides of two thrower cavities and an ingate connected between the sprue and one of the two thrower cavities, such that the molten metal passes through each of the ingates into respective hubs of the two thrower cavities, to cast the two throwers simultaneously.

IPC Classes  ?

• B61G 3/08 - Control devices, e.g. for uncoupling
• B22D 23/00 - Casting processes not provided for in groups
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art

Abstract

A method for casting a thrower for a railcar coupler includes creating a mold box that is vertically parted in halves, each half defining a side of a thrower cavity and that includes at least a portion of a sprue at a location above the thrower cavity, the thrower cavity also being oriented vertically; pouring molten metal into the mold box through the sprue and into the thrower cavity while the mold is oriented vertically; and shaking out the mold box to release the thrower after the thrower has cooled. Creating the mold box may be executed through a cold shell process. The halves of the mold box may include reflective images of the sides of two thrower cavities and an ingate connected between the sprue and one of the two thrower cavities.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
• B22C 9/22 - Moulds for peculiarly-shaped castings

Abstract

A method for casting at least one thrower for a railcar coupler includes creating a mold box that is vertically parted in halves, each half defining a side of at least one thrower cavity and that includes at least a portion of a sprue at a location above the at least one thrower cavity, the at least one thrower cavity also being oriented vertically; pouring molten metal into the mold box through the sprue and into the at least one thrower cavity while the mold is oriented vertically; and shaking out the mold box to release the at least one thrower after the at least one thrower has cooled. Creating the mold box may be executed through a cold shell process. The halves of the mold box may include reflective images of the sides of two thrower cavities and an ingate connected between the sprue and one of the two thrower cavities, such that the molten metal passes through each of the ingates into respective hubs of the two thrower cavities, to cast the two throwers simultaneously.

IPC Classes  ?

• B61G 3/08 - Control devices, e.g. for uncoupling
• B22D 23/00 - Casting processes not provided for in groups
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art

Abstract

A rigging system for casting railcar coupler knuckles is provided. The rigging system comprises cope and drag portions of a mold, a down sprue defined in said cope portion, at least one riser defined in said mold, at least two ingates defined at least partially in said mold and connected to said at least one riser, at least two knuckle mold cavities defined in said mold, and wherein said ingates have a non-circular shape.

IPC Classes  ?

• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/22 - Moulds for peculiarly-shaped castings
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art
• B22C 9/02 - Sand moulds or like moulds for shaped castings

Abstract

A core for use in railcar coupler part casting processes is provided. The core has a hollow body, a top with a first opening defined therein, a bottom having a generally rounded wall, and second and third openings defined in the side wall of the body.

IPC Classes  ?

• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

An improved lock for a railroad coupler, said improvement comprising a chamfer on a knuckle shelf seat.

IPC Classes  ?

• B61G 3/06 - Knuckle-locking devices

Abstract

A method of casting a core includes the steps of preparing a first half of a corebox (192), preparing a second half of a corebox (192) such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A core assembly for creating interior spaces in a railcar coupler knuckle is designed to be set in a cavity with cope and drag sections. The cavity is shaped to form a railcar coupler knuckle and includes a first wall that forms the substantially vertical outside wall of the tail of the knuckle. The core includes a kidney section (50) with a rear core sup¬ port section (156) that extends at least 0.5" outside the first wall of the cavity when the core is set in the drag.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A system for creating an interlock feature between two related railcar coupler cores comprises a first half of a corebox (192) defining cavity for forming a first half of a railcar coupler core, a second half of a corebox (192) defining a cavity for forming second half of a railcar coupler core, and a loose piece (194) including an extension (198) on a first side shaped to fit in the cavities.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A method of casting a core includes the steps of preparing a first half of a corebox (192), preparing a second half of a corebox (192) such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A core assembly for creating interior spaces in a railcar coupler knuckle is designed to be set in a cavity with cope and drag sections. The cavity is shaped to form a railcar coupler knuckle and includes a first wall that forms the substantially vertical outside wall of the tail of the knuckle. The core includes a kidney section (50) with a rear core sup¬ port section (156) that extends at least 0.5" outside the first wall of the cavity when the core is set in the drag.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A core assembly for forming the interior spaces of a railcar coupler knuckle has a first transition section (62) between the C-10 portion (50) of the core and the finger portion (48) of the core. The first transition section (62) has a first side (82), a second side (84), a third side (88) and a fourth side (90) and the first and second sides form the vertical axis (86) of the first transition section (62) and the third and fourth sides form the horizontal axis (92) of said first transition section (62). The vertical axis (86) of the first transition section (62) has a height along a horizontal plane of the vertical axis (86) of at least 2.5" and the horizontal axis (92) of said first transition section (62) has a width along a vertical plane of the horizontal axis (92) of at least 0.925".

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

An interlock feature for railcar core comprises a lug on a first core, a slot on a second core, a first positive stop surface, and a second positive stop surface.

IPC Classes  ?

• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A railcar coupler knuckle comprises: a C-10 pin hole; and a top knuckle pulling lug, wherein interior spaces of the railcar coupler knuckle are formed using a core comprising: a rear core support configured to support the core when the core is assembled in a mold used to cast the railcar coupler knuckle; a C- 10 portion configured to form the C-10 pin hole in the railcar coupler knuckle and; a contoured surface configured to provide detail to the interior spaces of the railcar coupler knuckle, wherein the railcar coupler knuckle has a wall thickness that has a substantially constant thickness over a majority of the distance from the top of a front face of the top knuckle pulling lug to a bottom face of the top knuckle pulling lug.

IPC Classes  ?

• B22C 9/10 - CoresManufacture or installation of cores
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art

Abstract

A core assembly for forming the interior spaces of a railcar coupler knuckle has a first transition section (62) between the C-10 portion (50) of the core and the finger portion (48) of the core. The first transition section (62) has a first side (82), a second side (84), a third side (88) and a fourth side (90) and the first and second sides form the vertical axis (86) of the first transition section (62) and the third and fourth sides form the horizontal axis (92) of said first transition section (62). The vertical axis (86) of the first transition section (62) has a height along a horizontal plane of the vertical axis (86) of at least 2.5" and the horizontal axis (92) of said first transition section (62) has a width along a vertical plane of the horizontal axis (92) of at least 0.925".

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

An interlock feature for railcar core comprises a lug on a first core, a slot on a second core, a first positive stop surface, and a second positive stop surface.

IPC Classes  ?

• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A core for forming interior spaces of a railcar coupler knuckle comprises: a rear core support configured to support the core when the core is assembled in a mold used to cast the railcar coupler knuckle; a C-10 portion configured to form a C-10 pin hole in the railcar coupler knuckle, at least a part of the C-10 portion being formed as a substantially cylindrical portion having a circular cross-section; a contoured surface configured to provide detail to the interior spaces of the railcar coupler knuckle; and a parting line defined on the contoured surface along a vertical direction of the core. The vertical direction is a direction extending from the rear core support to the C-10 portion, and the parting line substantially bisects the circular cross-section of the part of the C-10 portion being formed as the substantially cylindrical portion.

IPC Classes  ?

• B22C 9/10 - CoresManufacture or installation of cores
• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art

Abstract

A core assembly for casting a railcar coupler knuckle includes a first core and a second core. The first core includes a lug. A slot is defined in the second core. First and second positive stop surfaces are provided. The invention reduces core shifting during casting and therefore improves the strength and fatigue life of a coupler knuckle.

IPC Classes  ?

• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A core assembly for creating interior spaces in a railcar coupler knuckle is designed to be set in a cavity with cope and drag sections. The cavity is shaped to form a railcar coupler knuckle and includes a first wall that forms the substantially vertical outside wall of the tail of the knuckle. The core includes a kidney section with a rear core support section that extends at least 0.5″ outside the first wall of the cavity when the core is set in the drag.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

A core assembly for forming the interior spaces of a railcar coupler knuckle has a first transition section between the C-10 portion of the core and the finger portion of the core. The first transition section has a first side, a second side, a third side and a fourth side and the first and second sides form the vertical axis of the first transition section and the third and fourth sides form the horizontal axis of said first transition section. The vertical axis of the first transition section has a height along a horizontal plane of the vertical axis of at least 2.5″ and the horizontal axis of said first transition section has a width along a vertical plane of the horizontal axis of at least 0.925″.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

A railroad coupler knuckle includes a single, solid rib at a horizontal centerline of the knuckle that passes through a pivot pin hub thereof. The single, solid rib extends generally from a flag hole of a finger cavity of the knuckle to an opposite side of the knuckle from the flag hole. In another aspect, a railcar coupler knuckle includes a tail section, a hub section, and a nose section. The tail, hub, and nose sections define internal cavities including (i) a combined void that defines a pivot pin hub cavity and a kidney cavity and (ii) an isolated finger cavity. The combined void is formed using a first internal core during manufacturing of the coupler knuckle. The isolated finger cavity is formed using a second internal core during manufacturing of the coupler knuckle, such that molten alloy substantially separates the combined void and the isolated finger cavity.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

A railcar coupler knuckle includes a tail section, a hub section, and a nose section. The tail, hub, and nose sections define internal cavities including (i) a kidney cavity, (ii) a pivot pin cavity, and (ii) a finger cavity. The kidney and pivot pin cavities are formed using at least one internal core during manufacturing of the coupler knuckle. The finger cavity is formed from a finger section of cope and drag mold portions of a mold used during manufacturing of the coupler knuckle, wherein the finger section of the mold defines the entirety of the finger cavity of the coupler knuckle.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

A method for manufacturing a railcar coupler knuckle, said method includes providing a cope mold portion and a drag mold portion. The cope and drag mold portions have internal walls that define at least in part perimeter boundaries of a coupler knuckle mold cavity. At least one chill core is positioned within one of the cope mold portion and the drag mold portion. The cope and drag mold portions are closed, with the at least one core therebetween, and the closed cope and drag mold portions and the chill core define a parting line. The mold cavity is filled with a molten metal, which solidifies after filling to form a casting. The casting includes a pulling face portion defined by the chill core, and a central section of the pulling face portion does not contain the parting line and requires no finish grinding upon its formation.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

A railroad coupler assembly having at least a body and a knuckle both formed in a no-bake manufacturing process, the body and the knuckle having dimensional tolerances of distances between features that wear during operation that are about half those obtained from a body and a knuckle manufactured by a green sand process, resulting in increased fatigue life compared to the body and the knuckle manufactured by a green sand process.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

A railroad coupler assembly (200) having at least a body (204) and a knuckle (208) both formed in a no-bake manufacturing process, the body and the knuckle having dimensional tolerances of distances between features that wear during operation that are about half those obtained from a body and a knuckle manufactured by a green sand process, resulting in increased fatigue life compared to the body and the knuckle manufactured by a green sand process.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins

Abstract

A railroad coupler assembly (200) having at least a body (204) and a knuckle (208) both formed in a no-bake manufacturing process, the body and the knuckle having dimensional tolerances of distances between features that wear during operation that are about half those obtained from a body and a knuckle manufactured by a green sand process, resulting in increased fatigue life compared to the body and the knuckle manufactured by a green sand process.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins

Abstract

A method for manufacturing a railcar coupler knuckle, said method includes providing a cope mold portion and a drag mold portion. The cope and drag mold portions have internal walls that define at least in part perimeter boundaries of a coupler knuckle mold cavity. At least one chill core is positioned within one of the cope mold portion and the drag mold portion. The cope and drag mold portions are closed, with the at least one core therebetween, and the closed cope and drag mold portions and the chill core define a parting line. The mold cavity is filled with a molten metal, which solidifies after filling to form a casting. The casting includes a pulling face portion defined by the chill core, and a central section of the pulling face portion does not contain the parting line and requires no finish grinding upon its formation.

IPC Classes  ?

• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores
• B22D 15/00 - Casting using a mould or core of which a part significant to the process of high thermal conductivity, e.g. chill castingMoulds or accessories specially adapted therefor
• B61G 9/00 - Draw-gear

Abstract

A method for manufacturing a railcar coupler knuckle, said method includes providing a cope mold portion and a drag mold portion. The cope and drag mold portions have internal walls that define at least in part perimeter boundaries of a coupler knuckle mold cavity. At least one chill core is positioned within one of the cope mold portion and the drag mold portion. The cope and drag mold portions are closed, with the at least one core therebetween, and the closed cope and drag mold portions and the chill core define a parting line. The mold cavity is filled with a molten metal, which solidifies after filling to form a casting. The casting includes a pulling face portion defined by the chill core, and a central section of the pulling face portion does not contain the parting line and requires no finish grinding upon its formation.

IPC Classes  ?

• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores
• B22D 15/00 - Casting using a mould or core of which a part significant to the process of high thermal conductivity, e.g. chill castingMoulds or accessories specially adapted therefor
• B61G 9/00 - Draw-gear

Abstract

A coupler body for a railcar coupler, said coupler body comprising at least one central datum feature that does not wear during coupler use.

IPC Classes  ?

• B61G 5/00 - Couplings not otherwise provided for

Abstract

A method for manufacturing a railcar coupler knuckle includes providing a cope mold portion and a drag mold portion, the cope and drag mold portions having internal walls defining at least in part perimeter boundaries of a coupler knuckle mold cavity, wherein the mold cavity includes a finger section; positioning at least one internal core within either the cope mold portion or the drag mold portion, the at least one internal core configured to define a kidney cavity and a pivot pin cavity within a coupler knuckle; closing the cope and drag mold portions with the single core therebetween; and at least partially filling the mold cavity with a molten alloy, the molten alloy solidifying after filling to form the coupler knuckle, wherein the at least one core defines the kidney and pivot pin cavities, and the finger section of the mold cavity defines at least one finger cavity of the coupler knuckle.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

An improved coupler body having an area of increased ma-terial (26) in the upper lock chamber (24).

IPC Classes  ?

• B61G 3/06 - Knuckle-locking devices

Abstract

A coupler body for a railcar coupler, said coupler body comprising at least one central datum feature that does not wear during coupler use.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A finger core for forming the front part of a knuckle for a railcar, said finger core comprising a single opening to form a single rib at the horizontal center line of the resulting knuckle.

IPC Classes  ?

• B61G 5/00 - Couplings not otherwise provided for
• B22D 33/04 - Bringing together or separating moulds

Abstract

An improved coupler body having an area of increased material in the upper lock chamber.

IPC Classes  ?

• B61G 3/00 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements

Abstract

An improved coupler body having an area of increased material (26) in the upper lock chamber (24).

IPC Classes  ?

• B61G 3/06 - Knuckle-locking devices

Abstract

An improved lock (16) for a railroad coupler (10), said improvement comprising an increased chamfer (28) on a knuckle shelf seat (34).

IPC Classes  ?

• B61G 3/06 - Knuckle-locking devices

Abstract

A coupler body for a railcar coupler, said coupler body comprising at least one central datum feature that does not wear during coupler use.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

Abstract

A method for manufacturing a railcar coupler knuckle (16) includes providing cope and drag mold portions (210, 250) having internal walls defining at least in part perimeter boundaries of a knuckle mold cavity; positioning a first internal core within either the cope mold (210) or the drag mold (250) portions, the first internal core configured to define a kidney cavity (12) and a pivot pin hub (10) as a single void within the knuckle; positioning a second internal core within either the cope mold portion (210) and the drag mold portion (250), the second internal core configured to define a finger cavity (14); closing the cope and drag mold portions (210, 250) with the two internal cores therebetween; and at least partially filling the mold cavity with a molten alloy, the molten alloy solidifying after filling to form the knuckle, wherein the first internal core defines the kidney cavity (12) and the pivot pin hub (10) of the coupler knuckle, and wherein the second internal core defines the finger cavity (14) of the knuckle.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

An improved lock (16) for a railroad coupler (10), said improvement comprising an increased chamfer (28) on a knuckle shelf seat (34).

IPC Classes  ?

• B61G 3/06 - Knuckle-locking devices

Abstract

A finger core (10) for forming the front part of a knuckle (21) for a railcar, said finger core (10) comprising a single opening (18) to form a single rib (15) at the horizontal center line of the resulting knuckle (21).

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A method for manufacturing a railcar coupler knuckle (16) includes providing a cope mold portion (110) and a drag mold portion (150), the cope and drag mold portions having internal walls defining at least in part perimeter boundaries of a coupler knuckle mold cavity, wherein the mold cavity includes a finger section (114); positioning at least one internal core within either the cope mold portion (110) or the drag mold portion (150), the at least one internal core configured to define a kidney cavity and a pivot pin cavity within a coupler knuckle (16); closing the cope and drag mold portions with the single core therebetween; and at least partially filling the mold cavity with a molten alloy, the molten alloy solidifying after filling to form the coupler knuckle (16), wherein the at least one core defines the kidney and pivot pin cavities, and the finger section (114) of the mold cavity defines at least one finger cavity (40) of the coupler knuckle (16).

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A method for manufacturing a railcar coupler knuckle includes providing cope and drag mold portions having internal walls defining at least in part perimeter boundaries of a knuckle mold cavity; positioning a first internal core within either the cope mold or the drag mold portions, the first internal core configured to define a kidney cavity and a pivot pin hub as a single void within the knuckle; positioning a second internal core within either the cope mold portion and the drag mold portion, the second internal core configured to define a finger cavity; closing the cope and drag mold portions with the two internal cores therebetween; and at least partially filling the mold cavity with a molten alloy, the molten alloy solidifying after filling to form the knuckle, wherein the first internal core defines the kidney cavity and the pivot pin hub of the coupler knuckle, and wherein the second internal core defines the finger cavity of the knuckle.

IPC Classes  ?

• B22D 33/04 - Bringing together or separating moulds

Abstract

A finger core (10) for forming the front part of a knuckle (21) for a railcar, said finger core (10) comprising a single opening (18) to form a single rib (15) at the horizontal center line of the resulting knuckle (21).

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A method for manufacturing a railcar coupler knuckle (16) includes providing cope and drag mold portions (210, 250) having internal walls defining at least in part perimeter boundaries of a knuckle mold cavity; positioning a first internal core within either the cope mold (210) or the drag mold (250) portions, the first internal core configured to define a kidney cavity (12) and a pivot pin hub (10) as a single void within the knuckle; positioning a second internal core within either the cope mold portion (210) and the drag mold portion (250), the second internal core configured to define a finger cavity (14); closing the cope and drag mold portions (210, 250) with the two internal cores therebetween; and at least partially filling the mold cavity with a molten alloy, the molten alloy solidifying after filling to form the knuckle, wherein the first internal core defines the kidney cavity (12) and the pivot pin hub (10) of the coupler knuckle, and wherein the second internal core defines the finger cavity (14) of the knuckle.

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A method for manufacturing a railcar coupler knuckle (16) includes providing a cope mold portion (110) and a drag mold portion (150), the cope and drag mold portions having internal walls defining at least in part perimeter boundaries of a coupler knuckle mold cavity, wherein the mold cavity includes a finger section (114); positioning at least one internal core within either the cope mold portion (110) or the drag mold portion (150), the at least one internal core configured to define a kidney cavity and a pivot pin cavity within a coupler knuckle (16); closing the cope and drag mold portions with the single core therebetween; and at least partially filling the mold cavity with a molten alloy, the molten alloy solidifying after filling to form the coupler knuckle (16), wherein the at least one core defines the kidney and pivot pin cavities, and the finger section (114) of the mold cavity defines at least one finger cavity (40) of the coupler knuckle (16).

IPC Classes  ?

• B61G 3/04 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores

Goods & Services

railcar vehicle component parts, namely, [ yokes for connecting the ] coupler [ to the energy absorption device, striker plates for preventing damage to the car from forces generated when the coupler comes in contact with the plate, container support castings for assisting in securing the container, friction shoe castings for dampening forces to the truck, center plates for supporting the load of the car on the truck and end of car center sill draft pockets for receiving load from the coupling system ]