GB191111611A - Improvements in and relating to Photographic Change Boxes and Film Packs. - Google Patents

Abstract

11,611. T÷nnies, H. May 30, 1910, [Convention date]. Change - boxes, self - contained; film-packs. - Relates to means for enabling the exposed film which is drawn behind the unexposed film over a bridge piece by a pulling strip t be removed. The slot e, Fig. 3, for the pulling- strip is sufficiently wide to enable the films and the widest part of the tabs to pass, and the stops or shoulders d<1>, d which normally engage the films or wider part of the tab, can be moved away from the ends of the slots. The movable stops may be arranged on the film pack or on the change-box. In one modification, the stops d<1>, d<2> are on a piece of spring metal b fastened on the back of the pack. Alternatively, the arms c<1>, c<2> may be pivoted at the sides of the pack or again the stops may be on two separate metal pieces fastened to the sides of the pack. If the film pack itself is constructed with a slot of full width, the stops or shoulders t', t<2>, Fig. 8, may be arranged on the hinged lid v, or alternatively they may be arranged on arms pivoted to the part w.