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US Patent: 684,488
Manufacture of Wrench Forgings
Patentee:
Pardon A. Whitney (exact or similar names) - Southington, CT

USPTO Classifications:
76/114, 81/171

Tool Categories:
tool making : making wrenches
wrenches : wrench components : wrench jaw components

Assignees:
Peck, Stow & Wilcox Co. - Southington, CT

Manufacturer:
Peck, Stow & Wilcox Co. - Southington, CT

Witnesses:
C. F. Kilgore
D. S. Kreimendahl
H. E. Hart

Patent Dates:
Applied: Apr. 20, 1901
Granted: Oct. 15, 1901

Patent Pictures:
Pardon A. Whitney patent Oct. 15, 1901
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Description:
Drop forging process patent showing die forms and successive stages to form a movable "monkey wrench" jaw (only first and final steps shown in edited drawing). Jaw forms conforming to the design in this patent appear on P. S. & W. "Solid Bar," "SOLID STEEL" and similar screw wrenches produced by P. S. & W. in the early 20th Century. (See patent no. 553,059 for the "solid bar" design which dictated the "split" feature of this movable jaw.)

Parallel patent 684,489 describes a second method for forming movable wrench jaws where two forged pieces are welded.

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