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US Patent: 186,954
Wrench
Patentee:
Henry Richards - New Britain, CT

USPTO Classifications:
81/165, 81/170

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. H. Richards
Jacob Ritz

Patent Dates:
Applied: Jul. 17, 1875
Granted: Feb. 06, 1877

Patent Pictures:
Henry Richards Pat. February 6, 1877
USPTO pdf tiff
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Description:
The worm adjustable jaw portion is substantially the same as E. J. Worcester's June 9, 1857 patent (no. 17,531), and is not claimed in this patent. What is claimed is additional gear wheels to move the point of contact for the adjustment mechanism closer to the normal hand grip. The handle also has a square socket in the end.

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