US Patent: 347,179 - Wrench Attachment


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US Patent: 347,179

Wrench Attachment

Patentees:

William Alexander Kelly (exact or similar names) - East Tawas, MI

Charles Henderson Hubbell (exact or similar names) - East Tawas, MI

USPTO Classifications:

81/184, 81/186

Tool Categories:

wrenches : wrench components : pipe jaw attachments for wrenches

Assignees:

None

Manufacturer:

Kelly & Hubbell - East Tawas, MI

Witnesses:

Patent Dates:
Applied:	Nov. 23, 1885
Granted:	Aug. 10, 1886

Patent Pictures: [ 1 | 2 ]

William A. Kelly and Charles H. Hubbell patent August 10, 1886

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Description:

This wedge-shaped block with gripping teeth and a spring clip to attach it to the movable jaw of a monkey wrench is a pipe grip.

Corresponding Canadian patent CA-27,019 was granted June 22, 1887.

A known example has sufficient visible markings to infer that Kelly and Hubbell produced it at East Tawas, MI. An 1890 wholesale catalog lists it as "patent wrench attachment" for 12 inch screw wrench.