Hydraulic lifting assembly for mounting a crane jib

Details Hydraulic lifting assembly for mounting a crane jib Hydraulic lifting assembly for mounting a crane jib

1983-04-27

1986-01-21

Blix, Trygve M.

Traversing hoists

Having means facilitating assembly or disassembly

Of traversing hoist from support

212182, 212261, B66C 2336

Patent

active

045652910

ABSTRACT:
The hydraulic lifting provision for the mounting of a crane jib comprises two lift provisions disposed successively at a distance, where each lift provision comprises two base frames rising up from the trailer and disposed at a distance from each other and in each case a tiltable lift arm is disposed at the free end. The free ends of the lift arms are in each case hingedly connected via a cross-frame, where the support for the crane jib is disposed in each case on the cross frame. The cross frames with the supports disposed thereon are tiltable to the side by way of a different operating action of the hydraulic cylinders engaging them. In addition, the supports are constructed shiftable to the sides along the cross-frames by way of a corresponding disposition of additional hydraulic cylinders.

REFERENCES:
patent: 2941674 (1960-06-01), Bille
patent: 3174630 (1965-03-01), Tantlinger et al.
patent: 3603464 (1971-09-01), Teodorescu
patent: 4019642 (1977-04-01), Hammar

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