Supplementary equipment for use with a self-propelled crane with

Details Supplementary equipment for use with a self-propelled crane with Supplementary equipment for use with a self-propelled crane with

1983-05-27

1985-02-12

Blix, Trygve M.

Traversing hoists

Having means facilitating assembly or disassembly

Of traversing hoist from support

212223, 212226, 212231, 212182, 212244, 212265, B66C 2378, B66C 2304, B66C 2326

Patent

active

044985967

ABSTRACT:
Supplementary equipment for use with a self-propelled crane with a telescopic jib to increase the possibilities of use of the crane on the ground comprising a support having a structure connected to the head of the jib and pivotally mounted on a platform of the crane, and an auxiliary jib articulated on the head of the jib. A strut is articulated at one end to the foot of the auxiliary jib and connected at its outer end to reeving articulated on the crane and controlled by a first winch and by a cable to the head of the auxiliary jib. A lifting hook is suspended by reeving from pulleys at the head of the jib and controlled by a cable connected to a second winch on the crane. The inclination and height of the auxiliary jib are controlled by the reeving and the first winch connected thereto, and angular movement of the jib about the vertical axis or pivotal movement of the structure on the platform is controlled by movement of the crane about that vertical axis.

REFERENCES:
patent: 1743123 (1930-01-01), Elwood
patent: 2452632 (1948-11-01), Cameron
patent: 3308967 (1967-03-01), Baokley et al.
patent: 4027441 (1977-06-01), Pitelyaev et al.
patent: 4166542 (1979-09-01), Boyan
patent: 4316548 (1982-02-01), Helm et al.
patent: 4394911 (1983-07-01), Wittman et al.

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