US Patent: 2,640,369
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| Feedbox Transmission for Lathes
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Patentee:
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| William G. Hoelscher (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 08, 1948 |
| Granted: |
Jun. 02, 1953 |
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Joel Havens
"Vintage Machinery" entry for American Tool Works Co.
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Description: |
| Claim:
This invention relates general to lathes and is particularly directed to improvements in the structure of the variable speed feed box which determines the longitudinal feed rate or the lathe carriage. The present structure is of the tumbler gear type which embodies a cone or multiple diameter speed gears and a tumbler unit which may be shifted both longitudinally and transverse 1y in an arc to establish a meshing engagement with the selected cone gear. A feed box of this nature is disclosed in the prior patent of William G. Hoelscher, no. 1,982,612, issued November 27, 1934. The present feed box follows generally the principles disclosed in the prior patent and is designed to provide a simplified structure which provides improved performance and easier, more convenient selectivity. |
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