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US Patent: 355,444
Wrench
Patentee:
Conrad Farner (exact or similar names) - Milwaukee, WI

USPTO Classifications:
81/106, 81/143

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : pipe and nut combination wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Geo. Linder
C. T. Benedict
G. M. Gridley
E. R. Inman

Patent Dates:
Applied: Jun. 21, 1886
Granted: Jan. 04, 1887

Patent Pictures:
Conrad Farner patent January 4, 1887
USPTO (New site tip)
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Description:
A toothed block in the movable jaw engages rack teeth on the shank to hold the size adjustment. A toggle-levered key lifts and lowers the block. The jaw portion of the movable jaw has limited swinging motion, and is held in gripping position by a compression spring. The design is intended for use on pipe or nuts.

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