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US Patent: 1,822,428
Wrench
Patentee:
John Zilliox (exact or similar names) - Orchard Park, Erie County, NY

USPTO Classifications:
81/177.8

Tool Categories:
wrenches : nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Apr. 30, 1930
Granted: Sep. 08, 1931

Patent Pictures:
John Zilliox patent Sept. 8, 1931
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Description:
Separable machine wrench heads for a handle. The handle has a square stud and a shoulder with a spring / ball retainer that presses on the outside of the connector part of the wrench heads. The wrench heads can be thought of as a type of "crow's foot" with eight-point openings for insertion of the square stud on the handle, and flat faces corresponding to the shoulder with the spring / ball retainer.

This patent was an improvement of patent #1,764,379.

John Zilliox worked for Park Metalware Co. of Orchard Park, NY.

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