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US Patent: 618,859
Wrench
Patentee:
John Gardiner (exact or similar names) - Philadelphia, PA

USPTO Classifications:
76/114, 81/176

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

Assignees:
Biddle Purchasing Co. - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
Henry Drury
D. Stewart
Chas. F. Myers

Patent Dates:
Applied: Apr. 27, 1898
Granted: Feb. 07, 1899

Patent Pictures:
John Gardiner patent February 7, 1899
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Description:
The specifications relate this patent to wrenches of the type corresponding to Milton Wenger's Dec. 1, 1896 patent no. 572,185.

The "improvement" in this patent is a spring-loaded pivot for the adjusting nut which keeps the opposite conical end of the adjusting nut pressed firmly against the conical socket in the opposite side of the frame holding the adjusting nut.

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