Workpiece positioning adapter for pliers such as toggle clamps

Details Workpiece positioning adapter for pliers such as toggle clamps Workpiece positioning adapter for pliers such as toggle clamps

1995-05-11

1998-02-17

Watson, Robert C.

Work holders

Operator supported

Handle manipulation for jaw actuation

269 37, 269 41, 269228, 269282, B25B 100

Patent

active

057184194

ABSTRACT:
An adapter plate for removable attachment to a U-shaped lower jaw of a set of toggle clamps is disclosed. The adapter plate is constructed of a rigid metal suitable for providing a backing for a joint to be welded by means of a MIG welding or arc welding process such as copper or brass. The plate is triangularly shaped and includes upper and lower broad flat surfaces, a base side and a pair of adjacent sides extending from opposite ends of the base side and intersecting at a predetermined angle to form an apex. The plate contains beveled edges for clearing the rounded inside cornters of a pair of angle iron workpieces when said workpieces are placed against one or more sides of the plate to be positioned relative to one another for being held by the clamps for welding the workpieces together or for other purposes. The plate can be used to position the workpieces in the clamps against the adjacent sides at the predetermined angle relative to one another, such as a right angle, or it can be used to position the workpieces against the base side in a straight end-to-end alignment relative to one another. A weld joint backing walls for attachment to the plate for welding two angle irons together are also disclosed.

REFERENCES:
patent: 4033570 (1977-07-01), Curlow
patent: 4061321 (1977-12-01), Farr
patent: 4725049 (1988-02-01), Cantarinhas
patent: 4805315 (1989-02-01), Nesbitt
patent: 5064178 (1991-11-01), Nimtz
patent: 5482263 (1996-01-01), Kutzleb

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