Work holders – Relatively movable jaws – Jaw features
Patent
1990-12-20
1991-10-29
Watson, Robert C.
Work holders
Relatively movable jaws
Jaw features
B25B 124
Patent
active
050609203
ABSTRACT:
A movable jaw assembly of a workpiece holder mounted on a high-precision machining table is disclosed that has a gripping surface that can be rapidly changed without loosening the interfaces between the jaw and the shaft of the assembly or the base of the assembly and the table. The quick-change gripping surface is provided on a moveable jaw assembly having a dovetail-shaped foot and is removably received in a channel on the jaw assembly. A right-circular conical set screw presses an angled surface of the foot against an angled lower side of the channel. The upper side of the channel is cutaway to permit the foot to pivot out of the channel. The jaw is located in the channel by an index groove on the rear surface of the jaw that fits over an index pin in the channel.
REFERENCES:
patent: 713189 (1902-11-01), Yates
patent: 2492558 (1949-12-01), Deubler
patent: 2838971 (1958-06-01), Shekter
patent: 4251066 (1981-02-01), Bowling
patent: 4798371 (1989-01-01), Wallisser
patent: 4923186 (1990-05-01), Durfee
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