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US Patent: 1,132
Vise
Patentee:
John Wetherell (exact or similar names) - Allegheny, PA

USPTO Classifications:
269/239, 269/240

Tool Categories:
work holding : vises
work holding : vises : leg vises

Assignees:
None

Manufacturer:
John Wetherell - Pittsburgh, PA

Witnesses:
Robert Haque
M. B. Lourie

Patent Dates:
Granted: Apr. 22, 1839

Patent Pictures:
USPTO (New site tip)
Google Patents
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John Wetherell vise on toolarchives.com
Description:
The toolarchives.com site has photos of a vise that matches this patent, and is marked "JOHN WETHERELL" and "PITTSBURGH".

The patented feature of the vise is a pair of pins protruding from below each jaw, and facing away from the opposite jaw, that fit into recesses in the screw nuts, which are made separate from the jaws. This arrangement allows some play in the mechanism so that the jaws can accomodate the angular movement created by the one jaw moving in an arc around the pivot pin rather than in a parallel motion.

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