US Patent: 1,750,555
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| Geared Headstock for Lathes
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Patentee:
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| Wendell E. Whipp (exact or similar names) - Sidney, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 21, 1928 |
| Granted: |
Mar. 11, 1930 |
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Joel Havens
Monarch Machine Tool Co. History
"Vintage Machinery" entry for Monarch Machine Tool Co.
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Description: |
| Howard D. Smith - patent attorney
This invention relates to new and useful improvements in geared headstocks for lathes. It is the principal object of my invention 6 to provide for the headstock of a lathe, a non-clashing change-speed mechanism by which a large number of speeds, for example, sixteen are obtained with a less number of gears, in the present instance, fourteen. All of the spindle speeds are selective and the changes are made while the lathe is in operation, the gears being constantly in mesh and preferably of the helical type so that they may run noiselessly and smoothly. Noise, friction and shock, and gear tooth marks on the work, are thus eliminated, while a constant transmission of power is achieved. All changes of spindle speeds are made by a small number of levers, in this instance four, which move double-sided heavy jaw-clutches along multiple integral portions of the spindle and intermediate shafts into locking engagement with the gears in the oil tight headstock, no gears being carried in the cover plate. The advantage of sixteen speeds for the spindle over a less number of speeds is that the operator will have available a more nearly correct spindle speed at which to operate the lathe. Furthermore, with sixteen speeds a more perfect progression of speeds results with a smaller gap between each speed. These results are also accomplished without interlocking devices in the head, thus avoiding complications and unnecessary expense. |
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