Lifting trolley

Details Lifting trolley Lifting trolley

1996-11-12

1997-10-28

Brahan, Thomas J.

Material or article handling

Self-loading or unloading vehicles

Having elevating load body

254 4R, 254 4C, B60P 102

Patent

active

056811390

ABSTRACT:
A lifting trolley having a main frame supported on ground engaging wheels, a handle pivotally connected to the main frame and a lifting sub-frame which is vertically movable with respect to the main frame is disclosed. The sub-frame has a pair of spaced apart arms, each of which include retractable engagement means in the form of pivoting catch members that are adapted to secure a load, such as a stack of crates, to the sub-frame. Linkage means, such as a pulley and cable assembly between the handle and sub-frame, enabling pivotal movement of the handle to cause vertical movement of the sub-frame with respect to the main frame is also disclosed. The trolley includes releasable catch means, such as a first catch assembly between the handle and the main frame and a second catch assembly between the sub-frame and the main frame that is adapted to lock the sub-frame to the main frame, so that only upon release of the catch means and the pivotal movement of the handle may the sub-frame be raised or lowered to a desired height.

REFERENCES:
patent: 301229 (1884-07-01), Gray
patent: 320418 (1885-06-01), Walker
patent: 368883 (1887-08-01), Forbes
patent: 750671 (1904-01-01), Little
patent: 1194105 (1916-08-01), Whalley
patent: 1378466 (1921-05-01), Kimber
patent: 2152849 (1939-04-01), Hennessy
patent: 2214005 (1940-09-01), Zeindler
patent: 2992811 (1961-07-01), Turner
patent: 3809268 (1974-05-01), Lutz

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