Fluid-operated, load-handling apparatus

Details Fluid-operated, load-handling apparatus Fluid-operated, load-handling apparatus

B - Operations, Transporting

66

D

121/63

B66D 1/08 (2006.01) B66D 3/18 (2006.01) B66D 5/08 (2006.01)

Patent

CA 1191749

ABSTRACT OF THE DISCLOSURE A fluid-operated, load-handling apparatus is provided for handling loads of various weights. The apparatus includes a fluid-operated hoist with an elongate member extending down- wardly to a load-carrying unit. A pilot fluid-controlled regu- lator supplies fluid to the hoist and a load-responsive, pilot fluid regulator is carried by the load-carrying unit and supplies pilot fluid to the pilot fluid-controlled regulator. The pilot fluid is varied according to the weight of a load, being higher for heavier loads and lower for lighter loads so that the pressure of the fluid supplied to the hoist is accordingly varied by the pilot fluid-controlled regulator to automatically balance the load carried by the load-carrying unit. The apparatus also can include a brake for preventing the alongate member from moving up or down while loads are being changed or are at rest.

421601

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