DE423159C - Copier - Google Patents

Description

Patent paint ε

ι. Copy machine, preferably for copying single image recordings Normal cinema film, characterized in that a cam disk (15) and a detent disk on the axis of the indexing roller (12) are attached, of which the former (15) is a film pressure plate (9) pushes, the other (12) limits the advance.

2. Copying machine according to claim 1, characterized in that the inhibition the detent disc (12) is triggered by a lever (14).

3. Copying machine according to claim 1, characterized in that a wedge-shaped, between positive and negative film tape (19, 7) insertable slide (18) the positive film strip (19) presses so far that the teeth of the indexing roller (11) only reach into the bores of the negative film (7).

*) The patent seeker stated as the inventor:

Ftntj Schieber in Dresden.

1 sheet of drawings.

Claims (1)

The copying machine according to the invention aims at negatives of single image series on normal cinema film. Since single image recordings in random order of the objects are made, the copier must be able to put together the positive series in any way you like. This is achieved in that a cam and a detent disk are attached to the axis of the indexing roller where the former presses the film pressure plate, the other limits the film advance, and that by inserting a wedge-shaped member between the positive and negative film tape, the positive film tape -so far is pressed that the teeth of the fort | switch drum only in the through-holes of the I. Intervene in the negative film. j In Fig. I, 2 and 3 is a longitudinal section ao represented by the copier. Fig. 4 shows the picture rest. Fig. 5 and 6 show the | various interventions of the advance roll in the film tapes. Fig. 7 shows a top view with the cover removed, Fig. 8, a top view with partial section. The film storage space 2 is located in the light-tight housing ι and the film take-up room 3, which consist of i sheets 4. The housing 1 is through a cover 5 closed in a light-tight manner; there is a room 6 on it for storage of the negative to be copied 7. The. Film web S is through the cover 5 and a: resilient sheet 9 is formed, which presses the picture tapes against a picture window 10, which> is located in the cover 5. On the cover 5; the film advance roller 11 is stored. On ] a detent disc 12 sits on its axis with | the notches 13, in which the end of a double-armed Lever 14 can snap into place. The number of notches depends on the Number of teeth on the indexing roller. There is also a cam disk on the same axis 15. When turning the indexing roller π by means of the handle 16, the Lever 14 released from notches 13, and when you turn it further, the cam disc presses 15 a nose 17 of the pressure plate 9 together with this downwards and thereby lifts the pressing of the film strips so that they are advanced by the roller 11 can. Here, the teeth of the roller 11 engage in both films (Fig. 3, 6). Are you forced to skip pictures or the negative film tape when copying? to move backwards, a wedge-shaped slide 18 between positive film 19 and negative film 7 is pushed and the pressure plate 9 is removed from the film web 8 in this way lifted so that "the ratchet teeth only engage in the bores of the negative film and only this can be moved forwards or backwards. The positive film remains. To better protect the Switching device is a protective cap 20 placed over them. To interrupt the exposure, which can be done by daylight or artificial light, a slide 21 is used above the exposure window.