US Patent: 1,407,577
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| Wrench or Spanner
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Patentee:
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| Thomas James Pryor (exact or similar names) - Stanthorpe, Queensland Australia |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 15, 1921 |
| Granted: |
Feb. 21, 1922 |
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Patent Pictures:
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T. J. Pryor patent February 21, 1922 |
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Stan Schulz
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Description: |
| The main feature is the sliding jaw block moved by a lever handle. A spring between the lever handle and the main sleeve handle relaxes the jaw grip. The patent presents alternative adjusting means for the hook jaw -- a threaded shank with adjusting nut, or a sliding sleeve with holes, holes in the extended shank of the hook jaw, and a pin to select the adjustment. The jaw faces could be smooth or have some gripping texture.
The specifications note a parallel Australian patent application through an assignee -- Archie Robert Gordon. |
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