US Patent: 1,509,510
|
| Chuck
|
|
Patentee:
|
|
| Ellswoorth J. Hanna (exact or similar names) - Chicago, Cook County, IL |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Feb. 06, 1924 |
| Granted: |
Sep. 23, 1924 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for Thomas Elevator Co.
|
|
Description: |
| Claim:
In a chuck, a hub having grooves in one face, jaw member supported in said grooves, studs projecting from the rear face of said jaws, rollers mounted upon said studs, a cam gear rotatably mounted upon said hub and having ,a cam groove for receiving said rollers, a huh gear keyed upon said hub, adjacent said cam gear and provided with a bearing, a rotatable ring gear supported upon said bearing, and provided with interior teeth, a stationary gear having internal teeth secured adjacent the inner side of said ring gear, and a rotatable spider having planet gears mounted upon said hub, the planet gears meshing with the fore-mentioned gears. |
|
