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

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

Tool Categories:
wrenches : wrench components : wrench jaw components

Trimont Manufacturing Co. - Boston, MA

Trimont Mfg. Co. - Boston, MA

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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This patent date appears on TRIMO produced wrenches over a long time span, reflecting this patent and parallel patent 1,012,036. 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 no. 1,613,229 is a further refinement of the "flat washer" nut guard; no. 1,430,955 is a similar refinement of the "U" shaped nut guard.

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