LIFTER Russian patent published in 2005 - IPC

FIELD: load-handling mechanisms, in particular, traveling equipment for lifting or lowering of heavy-weight large-sized span structures of railway bridges.

SUBSTANCE: lifter has vertical columns with guides, on which are positioned load-bearing member, platform and drive for moving of load-bearing member. Load-bearing member comprises upper and lower supporting beams, which rest upon supporting beams through transverse beams. Supporting beams are set for repositioning in windows provided in guiding columns. Lifter is provided with working platforms arranged in tiers through the whole height of columns and connected by wells of stairs, and transition platforms fixed to lower supporting beam. Drive is made in the form of hydraulic jacks, which are located on lower supporting beam and rod heads of which are attached to upper supporting beam.

EFFECT: increased load-lifting capacity and simplified construction.

2 cl, 4 dwg