US Patent: 1,507,265 
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| Automatic lathe
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	        Patentee:
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 | John J. Thacher (exact or similar names) - Wethersfield, CT |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
May 17, 1920 | 
 
| Granted: | 
Sep. 02, 1924 | 
 
 
 
USPTO (New site tip) Google Patents 
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                        Jeff Joslin 
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        Description: |  
| Improvements to the automatic lathe of patent 1,252,928. The improvements provide improvements for the two-speed driving of the "main cam shaft" as well as improved operation and controlling of the blank transferring means from magazine to the lathe centers. A taper attachment is provided, and a speed lockout prevents the operator from changing speeds while the lathe is in operation. Finally, an improved stopping mechanism incorporates an emergency stop. |  
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