B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
254/167
B66F 5/04 (2006.01) B66F 3/24 (2006.01)
Patent
CA 1037461
ABSTRACT OF THE DISCLOSURE: A low profile air jack for lifting vehicles is described, in which the force exerted by a horizontally disposed air cylinder and piston assembly on the lever arm of a lifting member pivoted to the jack frame causes the lifting member to rotate, so that its front end engages and lifts the vehicle. The piston shaft of the air cylinder is connected to the lever arm of the lifting member by a flexible chain and sprocket assembly which acts as a force-multiplying mechanism so that the force acting on the lever arm of the lifting member is approximately double the force which would be exerted if the piston shaft were directly connected to the lever arm by a rigid member. The two flexible chains are connected to a stabilizing bar, which is pivotably attached to the jack frame for both vertical and horizontal movement thereto, rather than directly to the frame, so that equal forces are applied to both chains during the lifting operation.
258412
Anderson James D.
Greene Aubrey E.
Anderson James D.
Greene Aubrey E.
LandOfFree
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