Work holders – Relatively movable jaws – Plural jaw pairs – angularly oriented – for common work
Patent
1989-02-21
1990-04-24
Watson, Robert C.
Work holders
Relatively movable jaws
Plural jaw pairs, angularly oriented, for common work
269166, B25B 514
Patent
active
049194070
ABSTRACT:
A gripping device for frames (1), comprised by a construction (2) for receiving the frames (1), by structure (3) for gripping the horizontal edges of the frames (1) and by structure (4) for gripping the vertical edges of the frames (1), characterized in that the structure (4) for gripping the vertical edges of the frames (1) is constituted by an arm movably mounted on the upper beam (5) of the construction (2) and provided with a device (6) for blocking it in operative position by bracing.
REFERENCES:
patent: 685078 (1901-10-01), Willringhaus
patent: 704553 (1902-07-01), Lindstrom
patent: 2923334 (1960-02-01), Brennan, Jr.
patent: 4143869 (1979-03-01), Paterson et al.
patent: 4468018 (1984-08-01), Vaizey
patent: 4664364 (1987-05-01), Lymburner
Martival S.A.
Watson Robert C.
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