US Patent: 780,704
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| Gearing for Headstocks for Lathes
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Patentee:
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| Nicholas D. Chard (exact or similar names) - Cincinnati, Hamilton County, OH |
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Patent Dates:
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| Applied: |
Jun. 17, 1904 |
| Granted: |
Jan. 24, 1905 |
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Joel Havens
"Vintage Machinery" entry for Lodge & Shipley Machine Tool Co.
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Description: |
| Claim:
In a variable-speed device, a casing, three shafts, different-diameter gear-wheels thereon, two of said gear-wheels being independently slidable on their shafts for bringing into mesh different trains of gears, a sleeve and concentric shaft journaled in the casing, and independently revoluble, transmitting devices between the sleeve and one sliding member, transmitting devices between said concentric shaft and the other sliding member, a handle common to said sleeve and concentric shaft adapted to be alternately fixed to either whereby the two sliding members may be shifted independently. |
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