US Patent: 231,310
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| Tenoning-machine
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Patentee:
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| Gorham O. Hall (exact or similar names) - St. Louis, MO |
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Patent Dates:
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| Applied: |
Mar. 08, 1880 |
| Granted: |
Aug. 17, 1880 |
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Patent Pictures:
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Jeff Joslin
Vintage Machinery entry for Hall & Brown Wood Working Machine Co.
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Description: |
| "My improvement relates to the device for giving to the head-stocks the required vertical adjustments; and it consists in supporting the head-stocks in their vertical position by a vertical screw, each head-stock being supported on a screw-threaded collar or nut on the screw, said collar forming the hub of a bevel-wheel and turning in an ear or lug of the head-stock or adjustable plate in which the cutter-shaft has bearing. The construction is such that the head-stocks are raised and lowered simultaneously by the turning of the vertical supporting-screw, and each of the head-stocks has independent vertical adjustment by the turning of its supporting-nut upon the screw. The bevel-wheel nut is turned by a bevel-wheel on a spindle to whose end a winch is placed." |
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