Paper drive mechanism for automatic photographic paper cutter
US4106716A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1977 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Sep 29, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H20/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An automatic photographic paper cutter includes a drive system which drives a strip of photographic paper to a knife assembly. The drive mechanism applies a driving force along only one edge of the photographic paper strip, so that the operator of the paper cutter has an essentially unobstructed view of the prints on the photographic paper strip. A paper supply, which includes a spring loaded bale arm assembly, a pinch roller drive assembly, a brake, a motor and clutch, two loop sensors, and a U-shaped wire form guide supplies the photographic paper strip from a roll of photographic paper to the drive mechanism under essentially zero drag conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.