Work holders – With fluid means – With safety means
Patent
1983-06-14
1984-12-25
Watson, Robert C.
Work holders
With fluid means
With safety means
269 32, 269 35, 269285, 308 3A, B23Q 308
Patent
active
044899246
ABSTRACT:
A quick-set hydraulic work holding clamping table assembly including an elongated stationary rigid base member having a front control portion, a pair of stationary transversely spaced flat lateral platen sections flanking an elongated dovetail slide channel, an elongated slide plate member shaped to slidably interfit in the slide channel having its top surface lying in the same common plane as the top surface of the lateral platen sections and forming a movable center platen section. The slide plate member is moved forwardly and rearwardly by a manually operable drive screw coupled to the slide plate member and hydraulic power means are connected to the drive screw for rapidly moving the slide plate member relative to the lateral platen sections to move workpiece engaging jaw pieces to the gripping position responsive to application of fluid pressure to the power means.
REFERENCES:
patent: 2618243 (1952-11-01), Treganowan
patent: 2683386 (1954-07-01), Doebeli
patent: 3953086 (1976-04-01), Chaffin
patent: 4101119 (1978-07-01), Speiser et al.
patent: 4251065 (1981-02-01), McDougal
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