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

USPTO Classifications:
81/57.3

Tool Categories:
wrenches : cylinder tooth wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
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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Description:
"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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