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US Patent: 460,539
Wrench
Patentee:
Louis Schlesinger - Chicago, IL

USPTO Classifications:
81/173

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
Louis Schlesinger - Chicago, IL
Charles H. Gurney - Chicago, IL

Manufacturer:
Unknown

Witnesses:
J. A. Rutherford
Jas. E. Hutchinson
Thos. B. Brown
C. Kessler

Patent Dates:
Applied: Jun. 11, 1891
Granted: Sep. 29, 1891

Patent Pictures: [ 1 | 2 ]
Louis Schlesinger patent September 29, 1891
USPTO pdf tiff
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Description:
Adjusting nut on a threaded rod which comprises half of the shank; the other half is a smooth rod. This patent is conceived as an improvement to patent no. 273,170, although that patent is not mentioned explicitly in the specifications.

The CAPITOL WRENCH cites this patent date along with the earlier patent noted above, but the adjusting nut rides on the smooth rod, and engages rack teeth cut on the facing rod.

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