US Patent: 796,363
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| Wrench
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Patentee:
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| James H. Shepherd (exact or similar names) - Idaho Springs, CO |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 19, 1904 |
| Granted: |
Aug. 01, 1905 |
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Patent Pictures:
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James H. Shepherd patent August 1, 1905 |
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Stan Schulz
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Description: |
| The adjusting sleeve has internal left- and right-hand threads; the movable jaw and an extension of the handle have corresponding threads. The main shank is a "flat oval," with independent attachment to the handle. This construction revisits the concept of "speed adjustment" which appeared in mid-19th Century wrenches such A. G. Coes 1853 and 1854 patents 9,945 and 11,208, and George C. Taft's Oct. 16, 1860 patent no. 30,431 |
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