Improvements relating to apparatus for developing and otherwise treating photographic films
Реферат: 188,914. Crowe, W. J. Oct. 25, 1921. Containers for roll-films.-Apparatus for developing &c. roll-films comprises a casing 1 preferably of cylindrical form, having a removable support 2 upon which are rotatably mounted a roll-film spool 17, a spacing-band spool 18, and a winding-spool 22. The upper bearing 15 of the film spool is adjustable for different sizes of spool. The film and the spacing-band are wound simultaneously upon the winding spool 22 by operating an external handle 25 after fitting a light-tight cover 2. Rotation of the support 8 is prevented by a stop 26. Light trapped liquid inlet and outlet apertures 5, 6 are provided.
Method and apparatus for the recovery of the coating and film base constituents of photographic films
Номер патента: GB727032A. Автор: . Владелец: Individual. Дата публикации: 1955-03-30.