US Patent: 66,081
|
| Improvement in Chucks
|
|
Patentees:
|
| George W. Harris (exact or similar names) - New York, NY |
| William H. Haight (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Jun. 25, 1867 |
|
Patent Pictures:
|
|
Figure includes all the patent drawings. |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
George Langford
|
|
Description: |
| One has to read the patent description in order to comprehend the drawings. There is an operating ring behind the conical shell which can be rotated to force an internal nut B forwards to press the three jaws C against the bit. The operating ring has internal threads; operating ring B is threaded on its inner diameter. The jaws are keyed to the operating ring at their bases. Note that the drilling torque does not tend to tighten this chuck. |
|
