US Patent: 1,081,684
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| Compression Wrench
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Patentee:
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| William H. Lutz (exact or similar names) - Philadelphia, PA |
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Patent Dates:
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| Applied: |
Jan. 24, 1913 |
| Granted: |
Dec. 16, 1913 |
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Patent Pictures:
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William H. Lutz patent December 16, 1913 |
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Stan Schulz
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Description: |
| An improvement on Lutz's previous Compression Wrench design which received patent no. 1,054,700. In the improvement, the parts are simplified and made more robust, the retaining spring is replaced with a pivoted latch, and the adjustable fulcrum shoe feature is eliminated.
The wrench was supplied as alternative to a ratchet handle in a drill post equipment produced by the Lutz-Webster Engineering Co. The company also advertised a lathe dog employing this principle. Both the wrench and lathe dog could be fitted with a range of girth sizes. |
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