US Patent: 251,305
|
| Lathe-Chuck
|
|
Patentee:
|
|
| Dwight Slate (exact or similar names) - Hartford, Hartford County, CT |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Aug. 13, 1881 |
| Granted: |
Dec. 20, 1881 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for E. Horton & Son Co.
|
|
Description: |
| W. E. Simonds, patent attorney
My improvement relates to that class of combination-chucks:
i.e., those which may be changed from universal to independent, and vice versa, which have an annular gear for engaging with pinions on the various screws which operate the jaws and a loose ring back of the annular gear for use in meshing and unmeshing the annular gear from such pinions. The improvement is a device different from those which have preceded it for causing the meshing and unmeshing of said annular gear and said pinions. |
|
