US Patent: 1,044,517
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| Valve Lifting Device
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Patentee:
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| Bror Carl Ivar Hallgren (exact or similar names) - Pasadena, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 20, 1911 |
| Granted: |
Nov. 19, 1912 |
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Patent Pictures:
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Bror Carl Ivar Hallgren patent Nov. 19, 1912 |
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Stan Schulz
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Description: |
| The focus of the patent is the notched arc and corresponding "half shaft" locking pin used to hold the jaw adjustment. The locking pin is turned by a wing nut; a stop prevents rotation of the locking pin past the point of full engagement. |
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