US Patent: 160,954
|
Improvement in Drill-Chucks
Collet chuck for drill and screwdriver bits.
|
|
Patentee:
|
|
| John O. Reilley (exact or similar names) - Jersey City, NJ |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Feb. 16, 1875 |
| Granted: |
Mar. 16, 1875 |
|
Patent Pictures:
|
|
These are all the figures for this patent. |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Steve Gosselin (GL)
|
|
Description: |
| The collet is split into four segments at each end and is tightened onto the bit by a threaded shell that compresses the collet between a conical recess inside the spindle and another conical recess at the nose of the shell. |
|
