US Patent: 141,324
|
| Improvement in Expansive Bits
|
|
Patentee:
|
|
| William A. Clark (exact or similar names) - New Haven, CT |
|
|
Patent Dates:
|
| Applied: |
Dec. 05, 1872 |
| Granted: |
Jul. 29, 1873 |
|
Patent Pictures:
[
1 | 2
]
|
|
|
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin (dm)
|
|
Description: |
| Described as an improvement on his earlier expansive bit patent of 1858 (20192), and its latest reissue of 1871 (RE4668), this patent focuses on the way in which the adjustable cutter is recessed into the body of the bit in conjunction with a separate clamping plate. |
|
){kind=link}
){kind=link}