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US Patent: 695,047
Nut Wrench
William F. Hamilton - Ventura, CA

USPTO Classifications:

Tool Categories:
wrenches : cylinder tooth wrenches


Not known to have been produced

Chas. L. Hyde
Mattie McGinnis
A. J. Bell
W. M. Cook

Patent Dates:
Applied: Jun. 17, 1901
Granted: Mar. 11, 1902

Patent Pictures:
William F. Hamilton patent March 11, 1902
USPTO pdf tiff
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"T" handle drives a socket through an intermediate gear train, with the gears placed at apices of a triangle. The "dogleg" conformation of the cased gear train allows access to the otherwise inaccessible nuts holding threshing machine cylinder teeth - in particular those teeth in line with the end rims, internal spiders, and binding hoops. The specifications note other patents using gear trains, and how this patent differs.

Compare prior patent no. 350,603.

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