US Patent: 2,266,696
|
| Lathe
|
|
Patentee:
|
|
| Theodore A. Wettig (exact or similar names) - Cincinnati, OH |
|
|
Patent Dates:
|
| Granted: |
Dec. 16, 1941 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin
Vintage Machinery entry for Acme Machine Tool Co.
|
|
Description: |
| "This invention relates to improvements in change speed gear transmission, primarily for machine tools and of the sliding or shiftable gear and clutch type, with the speed changes selectively effect in shifting the gears and clutches through the medium of electric motors, controlled by an electric circuit reversing and speed change indexing switch, manual pre-set, for automatically instituting a speed change upon bringing a driving power control lever to a neutral position, so that the shifting is accomplished when the gear driving power is cut off and the transmission is at rest." |
|
