IPC Classification

Class code (prefix) Descriptions Number of results
E01B 1/00 BallastwayOther means for supporting the sleepers or the trackDrainage of the ballastway
E01B 2/00 General structure of permanent way
E01B 3/00 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails
E01B 3/02 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from wood
E01B 3/04 Means for preventing cleaving
E01B 3/06 Anti-cracking dogs
E01B 3/08 Straps or bands for hooping or encircling sleepers
E01B 3/10 Composite sleepers
E01B 3/12 Longitudinal sleepersLongitudinal sleepers integral or combined with tie-rodsCombined longitudinal and transverse sleepers
E01B 3/14 SlabsBlocksFastening tie-rods to them
E01B 3/16 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from steel
E01B 3/18 Composite sleepers
E01B 3/20 Sleeper construction for special purposes, e.g. with openings for ballast working
E01B 3/22 Longitudinal sleepersLongitudinal sleepers integral or combined with tie-rodsCombined longitudinal and transverse sleepers
E01B 3/24 SlabsBlocksPot sleepersFastening tie-rods to them
E01B 3/26 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from steel combined with inserts of wood, artificial stone, or other material
E01B 3/28 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
E01B 3/30 Hollow sleepers
E01B 3/32 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
E01B 3/34 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement with pre-tensioned armouring or reinforcement
E01B 3/36 Composite sleepers
E01B 3/38 Longitudinal sleepersLongitudinal sleepers integral or combined with tie-rodsCombined longitudinal and transverse sleepersLayers of concrete supporting both rails
E01B 3/40 SlabsBlocksPot sleepersFastening tie-rods to them
E01B 3/42 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone combined with inserts of wood or other material
E01B 3/44 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from other materials only if the material is essential
E01B 3/46 Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from different materials
E01B 3/48 Distance keepers or tie-rods for sleepers
E01B 5/00 RailsGuard railsDistance-keeping means for them
E01B 5/02 Rails
E01B 5/04 Grooved rails
E01B 5/06 Reversible or invertible rails
E01B 5/08 Composite railsCompound rails with dismountable or non-dismountable parts
E01B 5/10 Composite grooved railsInserts for grooved rails
E01B 5/12 Rails with a foot serving as a sleeper
E01B 5/14 Rails for special parts of the track, e.g. for curves
E01B 5/16 Distance keepers
E01B 5/18 Guard railsConnecting, fastening or adjusting means therefor
E01B 7/00 SwitchesCrossings
E01B 7/02 TonguesAssociated constructions
E01B 7/04 Constructions with tongues turning about a vertical pivot at the end
E01B 7/06 Constructions with flexible tongues or flexible fishplates
E01B 7/08 Other constructions of tongues, e.g. tilting about an axis parallel to the rail, movable tongue blocks or rails
E01B 7/10 Frogs
E01B 7/12 Fixed frogs made of one part or composite
E01B 7/14 Frogs with movable parts
E01B 7/16 Jump-over frogs
E01B 7/18 Combinations of switches and crossings
E01B 7/20 Safety means for switches, e.g. switch point protectors, auxiliary or guiding rail members
E01B 7/22 Special sleepers for switches or crossingsFastening means therefor
E01B 7/24 Heating of switches
E01B 7/26 Lubricating of switches
E01B 7/28 Crossings
E01B 7/30 Jump-over crossings
E01B 9/00 Fastening rails on sleepers, or the like
E01B 9/02 Fastening rails, tie-plates, or chairs directly on sleepers or foundationsMeans therefor
E01B 9/04 Fastening on wooden or concrete sleepers or on masonry without clamp members
E01B 9/06 Railways spikes
E01B 9/08 Elastic spikes
E01B 9/10 Screws or bolts for sleepers
E01B 9/12 Retaining or locking devices for spikes or screws
E01B 9/14 Plugs, sleeves, thread linings, or other inserts for holes in sleepers
E01B 9/16 Plugs, sleeves, thread linings, or other inserts for holes in sleepers for wooden sleepers
E01B 9/18 Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers
E01B 9/20 Fastening on wooden or concrete sleepers or on masonry without clamp members by keys
E01B 9/22 Fastening on steel sleepers without clamp members
E01B 9/24 Fastening on steel sleepers without clamp members by keys
E01B 9/26 Welded fastenings
E01B 9/28 Fastening on wooden or concrete sleepers or on masonry with clamp members
E01B 9/30 Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips
E01B 9/32 Fastening on steel sleepers with clamp members
E01B 9/34 Fastening on steel sleepers with clamp members by resilient steel clips
E01B 9/36 Metal sole-plates for rails which rails are directly fastened to sleepers
E01B 9/38 Indirect fastening of rails by using tie-plates or chairsFastening of rails on the tie-plates or in the chairs
E01B 9/40 Tie-plates for flat-bottom rails
E01B 9/42 Tie-plates for flat-bottom rails of two or more parts
E01B 9/44 Fastening the rail on the tie-plate
E01B 9/46 Fastening the rail on the tie-plate by clamps
E01B 9/48 Fastening the rail on the tie-plate by clamps by resilient steel clips
E01B 9/50 Fastening the rail on the tie-plate by keys
E01B 9/52 Fastening the rail on the tie-plate by keys by resilient keys
E01B 9/54 Rail chairs
E01B 9/56 Rail chairs for rails with two or more treads
E01B 9/58 Fastening the rail in the chair
E01B 9/60 Rail fastenings making use of clamps or braces supporting the side or head of the rail
E01B 9/62 Rail fastenings incorporating resilient supports
E01B 9/64 Rail fastenings gripping or encircling the sleeper
E01B 9/66 Rail fastenings allowing the adjustment of the position of the rails, so far as not covered by the preceding groups
E01B 9/68 Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
E01B 11/00 Rail joints
E01B 11/02 Dismountable rail joints
E01B 11/04 Flat fishplates
E01B 11/06 Flat fishplates with keys or pins
E01B 11/08 Angle fishplates
E01B 11/10 Fishplates with parts supporting or surrounding the rail foot
E01B 11/12 Fishplates engaging only the rail foot
E01B 11/14 Rail foot flange clips in one piece
E01B 11/16 Fishplates for joining rails of different sections
E01B 11/18 Fishplates for temporarily repairing broken rails
E01B 11/20 Dismountable rail joints with gap-bridging
E01B 11/22 Dismountable rail joints with gap-bridging by parts of the rails
E01B 11/24 Dismountable rail joints with gap-bridging by parts of the rails with oblique or overlapping rail ends
E01B 11/26 Dismountable rail joints with gap-bridging by parts of the rails with interlocking rail ends
E01B 11/28 Dismountable rail joints with gap-bridging by parts of the joining members
E01B 11/30 Fishplates with integral tread parts lying in the cross-section of the rail head
E01B 11/32 Dismountable rail joints with gap-bridging by separate partsInserts bridging both rail heads
E01B 11/34 Auxiliary rail beside the gap
E01B 11/36 Fastening means for fishplates
E01B 11/38 Locking arrangements for fastening means
E01B 11/40 Dismountable rail joints combined with welded parts
E01B 11/42 Joint constructions for relatively movable rails, e.g. rails on turntables, traversers, or swing bridges
E01B 11/44 Non-dismountable rail jointsWelded joints
E01B 11/46 General methods for making gapless tracks
E01B 11/48 Joints made by flame welding
E01B 11/50 Joints made by electric welding
E01B 11/52 Joints made by alumino-thermal welding
E01B 11/54 Electrically-insulating rail joints
E01B 11/56 Special arrangements for supporting rail ends
E01B 11/58 Bridge plates
E01B 11/60 Bridge plates with wedges
E01B 11/62 Bridge chairs
E01B 13/00 Arrangements preventing shifting of the track
E01B 13/02 Rail anchors
E01B 15/00 Guards for preventing a person's foot being trapped in grooved rails
E01B 17/00 Cattle guards connected to the permanent way
E01B 19/00 Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosionMeans to reduce development of noise
E01B 21/00 Track superstructure specially adapted for tramways in paved streets
E01B 21/02 Special supporting meansDraining of rails
E01B 21/04 Special fastenings, joint constructions, or tie-rods
E01B 23/00 Easily dismountable or movable tracks, e.g. temporary railwaysDetails specially adapted therefor
E01B 23/02 Tracks for light railways, e.g. for field, colliery, or mine use
E01B 23/04 Fastening or joining means
E01B 23/06 SwitchesPortable switchesTurnouts
E01B 23/08 Temporary tracks for use while repairing tramways
E01B 23/10 Shiftable tracks for heavy loads, e.g. carrying excavators
E01B 23/12 Sleepers
E01B 23/14 Fastening or joining means
E01B 23/16 Switches
E01B 25/00 Tracks for special kinds of railways
E01B 25/02 Tracks for rack railways
E01B 25/04 Rack railsSupports or connections for rack rails
E01B 25/06 SwitchesFrogsCrossings
E01B 25/08 Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
E01B 25/10 Mono-railsAuxiliary balancing railsSupports or connections for rails
E01B 25/12 SwitchesCrossings
E01B 25/14 Tracks for cable-drawn railway vehicles
E01B 25/15 SwitchesCrossings
E01B 25/16 Tracks for aerial rope railways with a stationary rope
E01B 25/18 RopesSupports, fastening or straining means for ropes
E01B 25/20 SwitchesCrossings
E01B 25/22 Tracks for railways with the vehicle suspended from rigid supporting rails
E01B 25/24 Supporting railsAuxiliary balancing railsSupports or connections for rails
E01B 25/26 SwitchesCrossings
E01B 25/28 Rail tracks for guiding vehicles when running on road or similar surface
E01B 25/30 Tracks for magnetic suspension or levitation vehicles
E01B 25/32 Stators, guide rails or slide rails
E01B 25/34 SwitchesFrogsCrossings
E01B 26/00 Tracks or track components not covered by any one of main groups
E01B 27/00 Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the trackDevices thereforPacking sleepers
E01B 27/02 Placing the ballastMaking the ballastwayRedistributing ballasting materialMachines or devices thereforLevelling means
E01B 27/04 Removing the ballastMachines therefor, whether or not additionally adapted for taking-up ballast
E01B 27/06 Renewing or cleaning the ballast in situ, with or without concurrent work on the track
E01B 27/08 Renewing or cleaning the ballast in situ, with or without concurrent work on the track the track having been taken-up
E01B 27/10 Renewing or cleaning the ballast in situ, with or without concurrent work on the track without taking-up the track
E01B 27/11 Renewing or cleaning the ballast in situ, with or without concurrent work on the track combined with concurrent renewal of track components
E01B 27/12 Packing sleepers, with or without concurrent work on the trackCompacting track-carrying ballast
E01B 27/13 Packing sleepers, with or without concurrent work on the track
E01B 27/14 Manual tools or hand-held power tools therefor
E01B 27/16 Machines therefor, e.g. so-called sleeper-tamping machines
E01B 27/17 Machines therefor, e.g. so-called sleeper-tamping machines combined with means for lifting, levelling, or slewing the track
E01B 27/18 Packing sleepers, with or without concurrent work on the track by introducing additional fresh material under the sleepers, e.g. by the measured-shovel method, by the blowing method
E01B 27/20 Compacting the material of the track-carrying ballastway, e.g. by vibrating the track, by surface vibrators
E01B 29/00 Laying, rebuilding, or taking-up tracksTools or machines therefor
E01B 29/02 Transporting, laying, removing, or renewing lengths of assembled track, assembled switches, or assembled crossings
E01B 29/04 Lifting or levelling of tracks
E01B 29/05 Transporting, laying, removing, or renewing both rails and sleepers
E01B 29/06 Transporting, laying, removing, or renewing sleepers
E01B 29/09 Transporting, laying, removing, or renewing sleepers under, or from under, installed rails
E01B 29/10 Transporting, laying, removing, or renewing sleepers under, or from under, installed rails for inserting or removing sleepers
E01B 29/11 Removal involving destruction of the sleeper, e.g. the sectioning thereof
E01B 29/13 Transporting, laying, removing, or renewing sleepers under, or from under, installed rails for moving sleepers in a direction parallel to the rails, e.g. for spacing or aligning them
E01B 29/14 Transporting, laying, removing, or renewing sleepers under, or from under, installed rails for lifting sleepers up to the rails
E01B 29/16 Transporting, laying, removing, or replacing railsMoving rails placed on sleepers in the track
E01B 29/17 Lengths of rails assembled into strings, e.g. welded together
E01B 29/20 Moving rails placed on installed sleepers in the plane of the track
E01B 29/22 Raising rails from sleepers, e.g. for inserting sole-plates
E01B 29/24 Fixing or removing detachable fastening means or accessories thereofPre-assembling track components by detachable fastening means
E01B 29/26 Fixing or removing detachable fastening means or accessories thereofPre-assembling track components by detachable fastening means the fastening means being spikes
E01B 29/28 Fixing or removing detachable fastening means or accessories thereofPre-assembling track components by detachable fastening means the fastening means being of screw-and-nut typeApparatus therefor, adapted to additionally drilling holes
E01B 29/29 Fixing or removing detachable fastening means or accessories thereofPre-assembling track components by detachable fastening means the fastening means being of screw-and-nut typeApparatus therefor, adapted to additionally drilling holes for horizontally-arranged fastening elements, e.g. fish-bolts
E01B 29/32 Installing or removing track components, not covered by the preceding groups, e.g. sole-plates, rail anchors
E01B 29/40 Means or arrangements for temporarily supporting laid tracks, or rails or sleepers in the track
E01B 29/42 Undetachably joining or fastening track components in or on the track, e.g. by welding, by gluingPre-assembling track components by gluingSealing joints with filling components
E01B 29/44 Methods for effecting joining of rails in the track, e.g. taking account of ambient temperature
E01B 29/46 Devices for holding, positioning, or urging together the rail ends
E01B 31/00 Working rails, sleepers, baseplates, or the like, in or on the lineMachines, tools, or auxiliary devices specially designed therefor
E01B 31/02 Working rail or other metal track components on the spot
E01B 31/04 Sectioning or slitting, e.g. by sawing, shearing, flame-cutting
E01B 31/06 Making holes, e.g. by drilling, punching, flame-cutting
E01B 31/08 Bending, e.g. for straightening rails or rail joints
E01B 31/12 Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
E01B 31/13 Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by milling
E01B 31/15 Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by planing or filing
E01B 31/17 Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
E01B 31/18 Reconditioning or repairing worn or damaged parts on the spot, e.g. applying inlays, building-up rails by weldingHeating or cooling of parts on the spot, e.g. for reducing joint gaps, for hardening rails
E01B 31/20 Working or treating non-metal sleepers in or on the line, e.g. marking, creosoting
E01B 31/22 Cutting or grinding wooden sleepers, e.g. for forming rail seats
E01B 31/23 Sectioning
E01B 31/24 Forming, treating, reconditioning, or cleaning holes in sleepersDrilling-templates
E01B 31/26 Inserting or removing inserts or fillings for holes in sleepers, e.g. plugs, sleeves
E01B 31/28 Applying or removing anti-splitting or like reinforcing means
E01B 33/00 Machines or devices for shifting tracks, with or without lifting, e.g. for aligning track, for shifting excavator track
E01B 33/02 Machines or devices for shifting tracks, with or without lifting, e.g. for aligning track, for shifting excavator track for slewing, i.e. transversely shifting, in steps
E01B 33/04 Manual toolsDevices not mounted on vehicles
E01B 33/06 Machines or devices for shifting tracks, with or without lifting, e.g. for aligning track, for shifting excavator track for slewing in a continuous operation, e.g. for tracks which carry excavators
E01B 33/08 Boom track-slewing machines
E01B 33/10 Bridge track-slewing machines
E01B 33/12 Combined boom and bridge track-slewing machines
E01B 33/18 Details not peculiar to a particular type of machine
E01B 33/21 Arrangement or construction of rollers moving the rails
E01B 35/00 Applications of measuring apparatus or devices for track-building purposes
E01B 35/02 Applications of measuring apparatus or devices for track-building purposes for spacingApplications of measuring apparatus or devices for track-building purposes for cross levellingApplications of measuring apparatus or devices for track-building purposes for laying-out curves
E01B 35/04 Wheeled apparatus
E01B 35/06 Applications of measuring apparatus or devices for track-building purposes for measuring irregularities in longitudinal direction
E01B 35/08 Applications of measuring apparatus or devices for track-building purposes for measuring irregularities in longitudinal direction for levelling
E01B 35/10 Applications of measuring apparatus or devices for track-building purposes for measuring irregularities in longitudinal direction for aligning
E01B 35/12 Applications of measuring apparatus or devices for track-building purposes for measuring movement of the track or of components thereof under rolling loads, e.g. depression of sleepers, increase of gauge
E01B 37/00 Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups