US Patent: 2,624,222
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Adjustable Jaw Internal Wrench With Threaded Handle
Plumber's Spud-Wrench
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Patentee:
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| Alfred R. Joy (exact or similar names) - West Hartford, CT |
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Patent Dates:
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| Applied: |
May 05, 1950 |
| Granted: |
Jan. 06, 1953 |
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Patent Pictures:
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Alfred R. Joy patent January 6, 1953 |
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Stan Schulz
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Description: |
| The patent's features are: ability to grip internal surfaces, telescopic action with a jaw on each section, and the jaws stay aligned. One jaw is fixed to the outer sleeve; the second jaw attaches to the adjusting screw. The attachments are made by removable pins to allow the parts to be replaced if they wear or break. The pins also serve to keep the jaw alignment.
U.S. Patent nos. 1,301, 378,584, 850,900, 1,121,229, and French patent no. 13,381 (1855) are cited as references. |
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