US Patent: 549,573
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| Keyway Cutter
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Patentee:
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| William Joseph Letzkus (exact or similar names) - Allegheny, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 31, 1895 |
| Granted: |
Nov. 12, 1895 |
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Joel Havens
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Description: |
| O. D. Levis - patent attorney
The key-seat cutting machine for shafts, comprising the frame carrying the shaft having the key-seat cutter, the power-shaft, an intermediate shaft geared to the aforesaid shafts, a second frame carrying the aforesaid frame, and adapted to be loosely mounted upon the shaft into which the key-seat is cut, the threaded shafts passing through and engaging said second frame and resting in supports connected to said key-seat shaft, the threaded worm-wheels mounted upon said threaded shafts, and worms meshing with said threaded worm-wheels, with their shaft geared by a counter-shaft and bevel-gearing to said intermediate shaft, substantially as set forth.
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