US Patent: 265,990
|
Ajustable Bit and Drill Chuck
Sliding-jaw two-jaw chuck
|
|
Patentee:
|
|
| George H. Summers (exact or similar names) - Beloit, WI |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jun. 07, 1882 |
| Granted: |
Oct. 17, 1882 |
|
Patent Pictures:
|
|
Patent images have been rearranged to fit this format. |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
George Langford
|
|
Description: |
| This design's claim to fame is that the chuck can be adjusted not only to fit the diameter of a bit's shank, but also to fit the length of the shank. |
|
