B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
214/1
B66F 19/00 (2006.01) B66F 9/06 (2006.01) B66F 9/18 (2006.01) B66F 9/20 (2006.01)
Patent
CA 1324348
- 10 - MOBILE HOIST Abstract A mobile hoist for loading and unloading heavy objects onto and from shelves in space limited quarters includes a hydraulic cylinder piston combination for elevating and lowering the objects utilizing a platform or a boom which may be attached to the piston. The piston moves up and down in response to a flow ofhydraulic fluid to and from the hydraulic cylinder. The flow of the hydraulic fluid is controlled by a metering valve which is opened and closed by a cam driven arrangement designed to ensure that the fluid flow through the metering valve isnonlinear enabling soft, no shock stops regardless of the weight of the objects being elevated or lowered. The boom includes a sling lock mechanism which allows for placement of objects in locations with limited clearances.
605384
American Telephone And Telegraph Company
Kirby Eades Gale Baker
LandOfFree
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