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US Patent: 1,012,037
Wrench
Patentee:
John H. Vinton - Jamaica Plain, MA

USPTO Classifications:
81/105, 81/169, 81/180.1

Tool Categories:
wrenches : wrench components : wrench jaw components

Assignees:
Trimont Manufacturing Co. - Boston, MA

Manufacturer:
Trimont Mfg. Co. - Boston, MA

Witnesses:
John D. Edwards
Thomas J. Drummond
Warren O'Neil

Patent Dates:
Applied: Aug. 10, 1911
Granted: Dec. 19, 1911

Patent Pictures:
John H. Vinton Pat. December 19, 1911
USPTO pdf tiff
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Description:
This patent date appears on TRIMO produced wrenches over a long time span, and on wrench styles that do not include the features in this patent. The main point of the patent is the "flat washer" style nut guard that extends beyond the circumference of the adjusting nut to prevent the adjustment being altered by the adjusting nut rubbing against adjacent surfaces. Patent nos. 1,012,036, 1,430,955 and 1,613,229 address the same concern.

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