A crane, a method for assembly of a crane and a method for disassembly of a crane are disclosed. In accordance with the method, a first mast is fixed in a vertical position. A top mast section of a second mast is positioned adjacent to and outside of the first mast. The top mast section is moved vertically upwards, and this movement is guided by a guide system. Then, the top mast section is fixed relative to the first mast at a position which is at a larger vertical distance from the crane base. Then, a first intermediate mast section of the second mast is fixed to a lower end of the top mast section to build up the second mast. Then, the first intermediate mast section is connected to a pivot, and the second mast is pivoted away from the first mast.
B66C 23/36 - Installations comportant essentiellement un palonnier, une flèche ou une structure triangulaire agissant comme bras de levier, montées de façon à permettre des mouvements de translation ou d'orientation dans des plans verticaux ou horizontaux, ou bien une combinaison de ces mouvements, p. ex. grues à flèche, derricks ou grues sur tours spécialement adaptées pour être utilisées dans des emplacements particuliers ou à des usages particuliers montées sur véhicules routiers ou ferroviairesGrues à flèche à manœuvre manuelle pour utilisation dans les ateliersGrues flottantes
B66C 23/70 - Flèches assemblées à partir de sections séparées pour former des flèches de différentes longueurs
B66C 23/00 - Installations comportant essentiellement un palonnier, une flèche ou une structure triangulaire agissant comme bras de levier, montées de façon à permettre des mouvements de translation ou d'orientation dans des plans verticaux ou horizontaux, ou bien une combinaison de ces mouvements, p. ex. grues à flèche, derricks ou grues sur tours
2.
Crane comprising first mast with tiltable first mast upper part
Provided is a crane with a main boom and a back mast, of which at least one comprises a first mast upper part comprising at least one mast section and a first mast lower part comprising at least one mast section, and a first mast tilting. The first mast tilting member is arranged between the first mast upper part and the first mast lower part, and has a straight hoisting state wherein the first mast upper part and the first mast lower part are essentially in line with each other, and a tilted hoisting state wherein the first mast upper part is tilted with respect to the first mast lower part.
B66C 23/70 - Flèches assemblées à partir de sections séparées pour former des flèches de différentes longueurs
B66C 23/68 - Flèches repliables ou réglables d'une autre façon
B66C 23/36 - Installations comportant essentiellement un palonnier, une flèche ou une structure triangulaire agissant comme bras de levier, montées de façon à permettre des mouvements de translation ou d'orientation dans des plans verticaux ou horizontaux, ou bien une combinaison de ces mouvements, p. ex. grues à flèche, derricks ou grues sur tours spécialement adaptées pour être utilisées dans des emplacements particuliers ou à des usages particuliers montées sur véhicules routiers ou ferroviairesGrues à flèche à manœuvre manuelle pour utilisation dans les ateliersGrues flottantes
B66C 23/66 - Structures des extrémités extérieures ou supérieures
B66C 23/76 - Contrepoids ou appuis pour équilibrer les couples de levage distincts de la flèche et mobiles pour tenir compte des variations de la charge ou des variations de la longueur de la flèche
3.
CRANE COMPRISING FIRST MAST WITH TILTABLE FIRST MAST UPPER PART
Provided is a crane with a main boom and a back mast, of which at least one comprises an first mast upper part comprising at least one mast section and a first mast lower part comprising at least one mast section, and a first mast tilting. The first mast tilting member is arranged between the first mast upper part and the first mast lower part, and has a straight hoisting state wherein the first mast upper part and the first mast lower part are essentially in line with each other, and a tilted hoisting state wherein the first mast upper part is tilted with respect to the first mast lower part.
B66C 23/68 - Flèches repliables ou réglables d'une autre façon
B66C 23/70 - Flèches assemblées à partir de sections séparées pour former des flèches de différentes longueurs
B66C 23/76 - Contrepoids ou appuis pour équilibrer les couples de levage distincts de la flèche et mobiles pour tenir compte des variations de la charge ou des variations de la longueur de la flèche
A multi configurations crane system comprises a crane base having a main boom pivot structure adapted to secure thereto a main boom of the crane and providing a horizontal main boom pivot axis for the main boom relative to the crane base. A main boom system is adapted to provide multiple main boom configurations and comprises: - a lower main boom section having a first end connectable to said main boom pivot structure of the crane base to allow for luffing of the main boom in a luffing plane, and a second end opposite said first end, - a top main boom section adapted to suspend a load from the main boom, e.g. comprising an assembly of one or more sheaves for one or more winch driven cables from which said load is suspended, - multiple lattice insert sections adapted to be inserted as a single strand of multiple of said lattice insert sections in said main boom.
B66C 23/70 - Flèches assemblées à partir de sections séparées pour former des flèches de différentes longueurs
B66C 23/76 - Contrepoids ou appuis pour équilibrer les couples de levage distincts de la flèche et mobiles pour tenir compte des variations de la charge ou des variations de la longueur de la flèche
5.
SAW FOR SAWING THROUGH AN OBJECT, NOTABLY AN OFFSHORE OBJECT OR ONSHORE OBJECT
Saw for sawing through an object (9), notably an offshore object or onshore object, such as a shipwreck or similar, comprising a cable, chain or rope (1) that is provided with or has elements with an abrasive surface, which cable, chain or rope is suspended from a base and which cable, chain or rope is arranged with drive means (3) to move the cable a rope through the object, wherein the cable, chain or rope forms a closed loop and the drive means are arranged to move, drive or propel the cable, chain or rope into a continuous unidirectional motion.
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