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US Patent: RE874
Wrench
Improvement in Screw-Wrenches
Patentee:
Aury Gates Coes - Worcester, MA

USPTO Classifications:
81/163

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

Assignees:
None

Manufacturer:
L. & A.G. Coes & Co. - Worcester, MA
A. G. Coes & Co. - Worcester, MA

Witnesses:
Charles Devens, Jr.
G. F. Hoar

Patent Dates:
Granted: Jan. 03, 1860

Reissue Information:
Reissue of 9,945 (Aug. 16, 1853)

Patent Pictures:
A.G. Coes Pat. Reissued Jan 3, 1860
USPTO pdf tiff
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Description:
The adjusting sleeve has interior and exterior threads that engage the lower portion of the adjustable shaw and the main bar. The adjustable jaw travels with the united volocities of the two sets of threads.

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