Work holders – Plural holders to hold workpieces relative to each other – Workpieces parallel to each other
Patent
1989-03-22
1990-06-19
Hartman, Judy
Work holders
Plural holders to hold workpieces relative to each other
Workpieces parallel to each other
269136, 269154, 269242, 269906, B25B 120
Patent
active
049346741
ABSTRACT:
A two station, single action vise has a body, with a fixed center block forming oppositely facing fixed jaws, and movable jaws at opposite ends of the body that are moved by operation of a vise screw toward one of the respective oppositely facing fixed jaws in the center of the body. The vise screw is spring centered and will yield to apply a preclamp with one of the jaws onto a piece part. The movable jaws are shown operated by a vise screw that has left-hand threads for operating one of the movable jaws and right-hand threads for operating the other movable jaw, so that as the screw is rotated both movable jaws move simultaneously toward the center block forming the fixed jaws. In this way two work pieces can be clamped by the movable jaws against the center fixed jaw. In order to preclamp piece parts under a spring load the screw is moved so it can shift axially slightly under spring load after preclamping one part until both movable jaws are positioned to clamp their respective piece parts tightly. The vise screw also can be adjusted axially relative to the vise body to shift one movable jaw relative to the fixed jaw to a different position than the first jaw for purposes of permitting different size parts to be clamped by the respective jaws.
REFERENCES:
patent: 62584 (1867-03-01), Williams et al.
patent: 2299294 (1942-10-01), Barnes
patent: 3861664 (1975-01-01), Durkee
patent: 3927873 (1975-12-01), Chambers
patent: 4241906 (1980-12-01), Cole
patent: 4341375 (1982-07-01), Romanin
patent: 4529183 (1985-07-01), Krason
Hartman Judy
Kurt Manufacturing Company, Inc.
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