US Patent: 255,011
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| Lathe
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Patentee:
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| Alexander W. Norton (exact or similar names) - Boston, Suffolk County, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 07, 1882 |
| Granted: |
Mar. 14, 1882 |
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Joel Havens
"Vintage Machinery" entry for American Tool & Machine Co.
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Description: |
| Crosby and Gregory - patent attorneys
Claim:
This invention has for its object to economize time of the workman when the lathe is to be changed to cut a thread of different pitch. Heretofore in screw-chasing lathes the follower has been composed of a metal block adjustably held in a socket of an arm extended from the slide rod, which is connected with and gives horizontal movement to the tool-holding carriage. |
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