Reversible drive for flexible web
US3977620A · kind A · utility
4Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1975 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | Sep 29, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J33/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A reversible drive apparatus for a flexible web, especially adapted to a reversible ribbon drive for a printing machine. A driving spur gear is arranged to be shifted between a pair of spur gears, each associated with a ribbon spool. The shifting is accomplished by mere reversal of direction of a drive motor which has a lead screw type shaft upon which the driving spur gear is mounted with mating screw threads. This allows the driving spur gear to travel laterally along the lead screw shaft between the pair of spur gears whenever the motor reverses direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.