Process for connecting a number of short strips of photographic material to a long roll
US5320694A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1993 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Mar 25, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7644
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A number of short strips of photographic material are connected to one long roll. Individual short strips are cut along their ends, roughly perpendicular to their longitudinal edge so that the edges of the individual strips are roughly perpendicular to the longitudinal edge of the strip. In order to connect the individual strips to form a roll, a double T-joint with essentially the same bending strength as the roll material to be connected is inserted as a connecting piece between ends of the short strips. Shanks of the double-T-joint that are parallel to each other are secured in the area of the longitudinal edges of strips. The connecting bar of the double-T-joint that attaches the two shanks of the double-T-joint is placed against and parallel to the edges of the strips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.