US Patent: 1,807,134
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| Socket Wrench
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Patentee:
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| Edward M. Pfauser (exact or similar names) - Milwaukee, WI |
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Patent Dates:
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| Applied: |
Jan. 30, 1930 |
| Granted: |
May 26, 1931 |
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Patent Pictures:
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Edward M. Pfauser patent May 26, 1931 |
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Stan Schulz
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Description: |
| "Push through" drive plug for "one-way" ratchet wrench that has to be turned over to reverse the direction. It has paired "spring / ball detent" and spring loaded pins to retain the plug in the head and connect detachable extensions or sockets.
Alloy Artifacts shows a Blackhawk ratchet matching this drawing, and notes this patent in the section on evolution of Blackhawk's "Lock-On" tools. The sequence noted there is: 1,685,503, this patent, 1,896,645, RE19,287, 1,927,844, 1,982,008 and 2,190,081. |
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