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US Patent: 484,070
Tool For Turning Fruit-Jar Covers
Improvement in Tools For Turning the Covers of Fruit-Jars
Patentee:
John G. Van Altena - Milwaukee, WI

USPTO Classifications:
81/3.43, 81/3.44, 81/98

Tool Categories:
wrenches : jar wrenches

Assignees:
None

Manufacturer:
John G. Van Altena - Milwaukee, WI

Witnesses:
Arthur L. Morsell
C. H. Keeney
Anna V. Faust

Patent Dates:
Applied: Oct. 19, 1891
Granted: Oct. 11, 1892

Patent Pictures: [ 1 | 2 ]
John Van Altena patent October 11, 1892
USPTO pdf tiff
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Description:
This fruit jar wrench is comprised of a ring with a cam-action lever handle inset at one point in the circumference. There is a motion limit stop for the lever handle, and the tool is flipped over to reverse the direction of action.

Van Altena patented a corresponding jar holder (patent no. 485,850, issued November 8, 1892).

A July 1893 issue of MECHANICAL NEWS announces the wrench and holder are available from the patentee / manufacturer.

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