US Patent: 674,194 - Chain Wrench


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US Patent: 674,194

Chain Wrench

Patentee:

William H. Brock (exact or similar names) - Long Island City, NY

USPTO Classifications:

81/70

Tool Categories:

wrenches : pipe wrenches : chain and strap wrenches

Assignees:

None

Manufacturer:

Brock Wrench Mfg. Co. - Brooklyn, NY

Witnesses:

J. L. McAuliffe

Edward Thorpe

Everard Bolton Marshall

Patent Dates:
Applied:	Feb. 08, 1901
Granted:	May 14, 1901

Patent Pictures: [ 1 | 2 ]

William H. Brock patent May 14, 1901

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Description:

The "hooks" on opposite side of the gripping head are offset from each other, to provide a greater sub-division of effective gripping surface within the overall capacity of the wrench.

Advertised as Brock's YANKEE pipe wrench; in 6 sizes ranging in length from 20 to 64 inches.