Work holders – Holder mounted for movement – With indexing steps
Patent
1994-06-10
1996-02-27
Meislin, D. S.
Work holders
Holder mounted for movement
With indexing steps
269130, B25B 514
Patent
active
054942683
ABSTRACT:
A combination chain wrench and vise for holding a workpiece, such as a pipe and like object, in place and for engagement around a circumference of the workpiece and performing work thereon. A first chain wrench is disposed at a right angle to the length of the workpiece and includes a chain wrench body with the front of wrench body having a plurality of teeth for releasably engaging and gripping of the workpiece. A first end of a chain is adapted for tightening on the chain wrench body. A second end of the chain is releasably mounted on the chain wrench body so that a length of the chain can be adjusted when received around different sizes of the workpiece. The wrench body further includes a first attachment block extending outwardly from the top of the wrench body. The first attachment block is adapted for receipt inside a first end of a vise attachment tube. The vise attachment tube is mounted to the top of a vise base. The vise base may be secured on the top of a work bench, service truck bumper and on a portable stand adapted for attachment to a ball hitch at the rear of a service truck. A second chain wrench with a chain wrench body having a first attachment block may be received in a second end of the vise attachment tube so that a pair of wrench bodies with adjustable chains may be used for gripping the workpiece.
REFERENCES:
patent: 1054958 (1913-03-01), Amborn
patent: 1665182 (1928-04-01), Sutthery
patent: 2984132 (1961-05-01), Renz
patent: 3379431 (1968-04-01), Gill
patent: 4415149 (1983-11-01), Rees
patent: 5228607 (1993-07-01), Tolsdorf
Crabtree Edwin H.
Margolis Donald W.
Meislin D. S.
Pizarro Ramon L.
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