US Patent: 737,996
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| Lathe
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Patentee:
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| Dudley B. Bullard (exact or similar names) - Bridgeport, Fairfield County, CT |
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Patent Dates:
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| Applied: |
Aug. 05, 1901 |
| Granted: |
Sep. 01, 1903 |
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Joel Havens
Vintage Machinery entry for Bullard Machine Tool Co.
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Description: |
| Claim:
In a turret-lathe the combination of a carriage-block; a reciprocating slide-bar provided with rack-teeth; a lever, one arm of which is a segmental gear in mesh with the rack on said slide-bar' and the other arm of which is an operative handle; a spring-actu-ated lockpin within said carriage-block; and connecting; means, provided with means for securing lost motion, between said slide-bar and said lock-pin, whereby as the slide-bar is continuously moved in one direction, first, said connecting means will depress said lockpin; second, said means of lost motion will retain said lockpin depressed, and, third, said connecting means will finally release said lock-pin, and whereby as the slide-bar is r5 moved in the opposite direction said connecting means will be restored to their original position. |
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