US Patent: 684,488
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| Manufacture of Wrench Forgings
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Patentee:
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| Pardon A. Whitney (exact or similar names) - Southington, CT |
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Patent Dates:
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| Applied: |
Apr. 20, 1901 |
| Granted: |
Oct. 15, 1901 |
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Patent Pictures:
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Pardon A. Whitney patent Oct. 15, 1901 |
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Stan Schulz
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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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