| US Patent: 422,480 
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| Chuck | 
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| Patentee: |  |
 | Lucius E. Whiton (exact or similar names) - New London, CT |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Jul. 12, 1889 |  
| Granted: | Mar. 04, 1890 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for D. E. Whiton Machine Co.
 
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| Description: |  | "my present invention is especially applicable to that class of chuck in which a series of holding-jaws are supported in radial guide-ways and actuated by a scroll or helix on a revoluble section located within the chuck-case. The purpose of my present invention is to simplify and cheapen somewhat the manner of supporting and securing said pinion-gears..." |  |