Sound-cine-camera
US4027955A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Sep 23, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B31/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera adapted for use with either a silent-film cartridge or a sound-film cartridge of larger size and having sound recording means including a capstan and a pressure roll movable into and out of engagement with the sound film against the capstan with a sensing means actuated by the sound-film cartridge inserted into the camera for permitting the actuation of a release mechanism for movement, through a mechanical linkage, of the pressure roll into engagement with the sound-film against the capstan and for deactivating the release mechanism upon insertion of a silent-film cartridge into the camera to permit disengagement of the pressure roll from the capstan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.