Work holders – Plural holders to hold workpieces relative to each other – Workpieces normal to each other
Patent
1993-09-09
1994-11-15
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Workpieces normal to each other
269236, 269904, 269315, B25B 514
Patent
active
053640845
ABSTRACT:
A carpenter's toe-nail backup clamp for use in positioning a first board, such as a 2.times.4 wall stud, to a second board, such as a 2.times.4 plate, to facilitate attaching the first board to the second board with nails, the backup clamp having a base member to rest on the second board, an end plate affixed to one end of the base member for extending along one edge of the second board, a cam member secured to the base member at the other end thereof about an axis that is parallel to the end plate, the cam member providing variable spacing from the end plate according to the rotational position of the cam member, and a handle extending from the cam member by which the cam member can be rotated to clamp the second board between the cam member and the backup plate, the base member thereby providing a backup for a first board so that the first board may be toe-nailed to the second board.
REFERENCES:
patent: D261609 (1981-11-01), Roux
patent: 630900 (1899-08-01), Kohl
patent: 2680459 (1954-06-01), Dodson et al.
patent: 2956798 (1960-10-01), Briggs
patent: 3083007 (1963-03-01), Campfield
patent: 3914871 (1975-10-01), Wolff
patent: 4589640 (1986-05-01), Pert
patent: 4795141 (1989-01-01), Mulvaney
patent: 4888879 (1989-12-01), Dixon
Karding, Inc.
Watson Robert C.
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