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US Patent: 1,060,685
Pipe Wrench
Patentee:
Elihu K. Jones (exact or similar names) - Portland, OR

USPTO Classifications:
81/126

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. F. Blake
G. B. Nissen
Hazel A. Armstrong

Patent Dates:
Applied: Oct. 01, 1912
Granted: May 06, 1913

Patent Pictures:
Elihu K. Jones patent May 6, 1913
USPTO (New site tip)
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Description:
An extension at the back of the frame for the adjusting nut bears against a projection on the hinged handle. Movement of the hinged handle tightens the grip of the wrench.

The pivot point at "A" in the drawing looks way too weak to bear the strain this design would have imposed.

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