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US Patent: 11,308
Improved Screw-Wrench
Patentee:
Jabez C. Terry - Springfield, MA

USPTO Classifications:
81/174

Tool Categories:
wrenches : nut wrenches

Assignees:
None

Manufacturer:
J. C. Terry - Springfield, MA

Witnesses:
A. C. Smith
Charles A. Winchester

Patent Dates:
Granted: Jul. 11, 1854

Patent Pictures:
Jabez C. Terry patent July 11, 1854
USPTO pdf tiff
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Description:
The lower fixed jaw is attached to the handle with straps that pass through the adjusting screw. The outer adjustable jaw has a hollow center to control heat flow during the annealing stage of manufacture. According to Ken Cope's "American Wrench Makers 1830-1930," Terry manufactured this wrench.

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