Lifting apparatus and lifting arm assembly for use therein

Details Lifting apparatus and lifting arm assembly for use therein Lifting apparatus and lifting arm assembly for use therein

B - Operations, Transporting

66

F

254/4

B66F 7/04 (2006.01)

Patent

CA 1292981

2681-011 CANADA TITLE: LIFTING APPARATUS AND LIFTING ARM ASSEMBLY FOR USE THEREIN INVENTOR: ROBERT JAMES CURRAN ABSTRACT OF THE DISCLOSURE A lifting apparatus has two posts on either side. A lifting or cross member extends between them and is supported on carriages slidably mounted on the posts. Support arms or the like extend out from the support carriages for supporting a vehicle or other load. Actuators are provided for driving the carriages up and down. The actuators can be hydraulic cylinders connected in a master and slave relationship with a hydraulic connection between them through the cross member. Additionally, mechanical safety catches can be provided which are connected by a cable or the like through the cross member, to permit a single handed operation of them. In the further aspect of the invention, a mechanism is provided for locking the support arms angularly, which mechanism includes plungers that contact the ground and automatically free the support arms when the apparatus is lowered.

590107

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