Work holders – Operator supported – Handle manipulation for jaw actuation
Patent
1987-11-12
1989-05-30
Watson, Robert C.
Work holders
Operator supported
Handle manipulation for jaw actuation
269203, 269238, 269254R, 269282, 269257, 269274, B25B 102
Patent
active
048343528
ABSTRACT:
A spring clamp with a lower clamping jaw, an upper clamping jaw, a first handle portion extending rearwardly from and integrally connected with the lower clamping jaw, a second handle portion extending rearwardly from the upper clamping jaw, the upper clamping jaw having a slide-housing integrally connected to the second handle portion, and an L-shaped bracket having a first leg portion having a free end for sliding cooperation with the slide-housing and a second leg portion extending at right angles to another end of the first leg portion. The slide-housing has a first cooperating means and the first leg portion has second cooperating means, the first and second cooperating means being operatively associated to allow for the sliding movement of the first leg portion with respect to the slide-housing and for preventing the escape of the first leg portion from sliding engagement with the slide-housing means. The L-shaped bracket may be oriented in two different states so that smaller and larger workpieces may be accomodated and clamped between the second leg portion and the lower clamping jaw. In the first state, the free end of the first leg portion faces away from the lower clamping jaw, while in the second state the free end faces toward the lower clamping jaw.
REFERENCES:
patent: 189767 (1877-04-01), Mole
patent: 455369 (1891-07-01), Vanderman
patent: 614387 (1898-11-01), Hargis
patent: 2040669 (1936-05-01), Odmark
patent: 3575405 (1971-04-01), Harding
patent: 4083624 (1978-04-01), Timmer
patent: 4121815 (1978-10-01), Paterson
patent: 4235428 (1980-11-01), Davis
Gerstein Milton S.
Watson Robert C.
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