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US Patent: 25,571
Nut Wrench
Patentee:
K. Kuhlenschmidt (exact or similar names) - New York, NY

USPTO Classifications:
269/215, 81/155

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches
wrenches : nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. Schmidt
P. Milspaugh

Patent Dates:
Granted: Sep. 27, 1859

Patent Pictures:
K. Kuhlenschmidt Pat. Sept. 27, 1859
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Description:
The movable jaw is adjusted by a disk with a helical gear cut in on its conical face that engages curved rack teeth cut on the back side of the main shank. The description contrasts this helical threaded disk's action with that employed in J.D. Dale's Aug. 21, 1855 patent (no. 13456).

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