US Patent: 1,699,359
|
| Motor Operated Chuck
|
|
Patentee:
|
|
| Howard M. Hay (exact or similar names) - Wenonah, Gloucester County, NJ |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jan. 24, 1923 |
| Granted: |
Jan. 15, 1929 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
|
|
Description: |
| Application renewed 22 Jun., 1928.
Abstract:
This invention relates to improvements in motor operated chucks, that is, chucks in which the jaws are actuated in their radial movements by a motor and gearing between the motor and the chuck jaws. In the present invention, the motor is stationary, and through gearing contained in the housing at the rear of the chuck body, the jaws may be actuated while the chuck is in motion or at rest and they may also be actuated by hand power when, desired. The invention comprises a lost motion connection in the gearing whereby the motor may accelerate before picking up its load and give a shock or jar to the various parts of the gearing to release the jaws from the work. In the present invention, I have shown a scroll for moving the jaws and reducing gearing for multiplying the leverage on the scroll.
Claim:
The combination with a lathe spindle and a chuck having a hub mounted on the spindle, of a member journaled on the hub and adapted to operate the chuck jaws when said member is rotated relatively to the hub, gearing between said hub and member for causing said hub and member to rotate in unison, said gearing including two normally stationary annular racks, one of which is adjustable to cause rotation of said member relatively to the hub, means for adjusting the latter rack comprising an arcuate member concentric with said latter rack and having a lost motion connection therewith, and means for moving said arcuate member about its axis. |
|
