C-clamp structure

Details C-clamp structure C-clamp structure

1985-03-06

1987-09-08

Watson, Robert C.

Work holders

Relatively movable jaws

Plural jaw pairs

269249, 269258, B25B 100

Patent

active

046919074

ABSTRACT:
A unitary, integrally casted dual C-clamp structure is automatically adjusted by the workpiece during the clamping operation and is formed with clearance areas to facilitate the clamping of an irregularly shaped workpiece. The clamp has a common base. A pair of substantially parallel, spaced-apart supports are formed integrally with the base. Positioned on each support is a respective freely-rotatable, prismatically-shaped clamping block. The clamping blocks are spaced from one another. A slot is formed in the base below and between the clamping blocks.

REFERENCES:
patent: 287271 (1883-10-01), Gladwin
patent: 1349963 (1920-08-01), Jerrim
patent: 1372661 (1921-03-01), Secord
patent: 1531377 (1925-03-01), Clarke
patent: 2318487 (1943-05-01), Horn
patent: 2541605 (1951-02-01), Ohlsson
patent: 3106904 (1963-10-01), Sandres
patent: 3173674 (1965-03-01), Ringle
patent: 4083547 (1978-04-01), Gurley
patent: 4291870 (1981-09-01), Warde
patent: 4476759 (1984-10-01), Aderneck

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