Two-station vise with double-threaded screw

Details Two-station vise with double-threaded screw Two-station vise with double-threaded screw

1989-05-11

1992-03-24

Hartman, J. J.

Work holders

Plural holders to hold workpieces relative to each other

Workpieces parallel to each other

269136, 269154, 269906, B25B 120

Patent

active

050980734

ABSTRACT:
A machine vise holds two parts against a center mounting block, and has simultaneously moving jaws slidable on a vise body toward opposite sides of the center jaw for clamping. One of the jaws is driven through a torque limiting clutch to the drive screw to provide a preload on one of the parts, after which the clutch releases for final, high pressure tightening.

REFERENCES:
patent: 62584 (1867-03-01), Williams et al.
patent: 2299294 (1942-10-01), Barnes
patent: 3397880 (1968-08-01), Kuban
patent: 3861664 (1975-01-01), Durkee
patent: 4529183 (1985-07-01), Krason et al.
patent: 4934674 (1990-06-01), Bernstein

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