Manual grasping and lifting device for stones and the like

Details Manual grasping and lifting device for stones and the like Manual grasping and lifting device for stones and the like

1995-02-17

1997-04-08

Kramer, Dean

Handling: hand and hoist-line implements

Hand bars and hand barrows

Ball retriever

294111, B25J 104

Patent

active

056180756

ABSTRACT:
A grabber for lifting particularly stones from the bottom of a manhole comprises a elongate handle with a lifthead at the bottom of a handle. The lifthead carries a pair of levers each pivoted to an outside corner of the lifthead and each carrying a grasping member hanging downwardly from the lift lever. The grasping member has three fingers which are inclined downwardly and outwardly and then downwardly and inwardly with a center finger having an end point further out than two side fingers. The side fingers incline outwardly and downwardly. A cable extending through the hollow handle wraps around pulleys on the lift levers so that upward pulling force on cable pulls the levers inwardly and grasps the stone.

REFERENCES:
patent: 337358 (1886-03-01), Allinson
patent: 530346 (1894-12-01), Leary
patent: 2429884 (1947-10-01), Leigh
patent: 3071401 (1963-01-01), Maierhofer
patent: 4114938 (1978-09-01), Strader
patent: 4210353 (1980-07-01), Koontz
patent: 4398759 (1983-08-01), Manola

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