DE287388C - - Google Patents

Description

PATENT LETTERING

287388 CLASS 57 «. GROUP

Device on cinematograph. Patented in the German Empire on January 27, 1915.

The invention relates to a device on cinematographs that allows the addition of the title, the description 'or some other explanation of the pictures thrown on the canvas enables. These words, explanations and the like are attached to a transparent tape, which is transverse using special aids to the film is drawn over its exposed part, so that the image and the on the tape applied explanations appear on the canvas at the same time.

An exemplary embodiment of the subject matter of the invention is shown in the drawing.

Fig. Ι is a front view of a cinematograph with the new device.

Fig. 2 is the plan for this, which is shown partly in section.

In the cinematograph of known type A , a light source B and an objective C are provided, which project the images of the film D to be reproduced onto a screen arranged at a certain distance. The film D runs vertically in the guide E provided in the housing A and is moved past the lens C by an intermittent transmission of a known type.

In the drawing, this gear consists of the two toothed wheels F, which engage in the perforations D ¹ on both sides of the film D - and sit on a shaft F ¹ mounted in the housing A; On the shaft -F still a star wheel G is attached, which is driven by a seated on the shaft H ¹ H ratchet wheel. The shaft H ¹ is connected by drive wheels H ^z , H * with the shaft ff ⁴ , on which the crank H ^{s is placed} to drive the transmission.

Is H at the crank ^s rotated, the toothed wheels F are displaced by means of the transmission described in a batch-wise progressive movement ,, is moved so that the film D jerkily front of the lens C.

A transparent strip I, band ο, is placed over the film, ie usually over its back, at the exposed point. Like., drawn, on which the inscriptions or other explanations belonging to the picture are applied. The tape is unwound from the horizontally lying drum or reel / which is placed on the arm J ^{1 of} the housing A. After passing the film, the tape is wound onto the reel K , which is carried by the arm K ¹ on the other housing wall.

The coil K is connected to a worm wheel Ζ, which engages in the worm L ^{1 sitting on the shaft L 2} and is supported by a belt 2V ¹ running over the pulleys N, N ²

is driven by the shaft H * . When the shaft H ^ rotates, the take-up reel K is also set in rotation via the belt and worm drive, through which the tape I to be wound is pulled past the film.

The inscriptions appear on the light screen at the same time as the associated pictures and can be read while looking at the pictures. The inscriptions either run past the top or bottom of the illustrated images, depending on the height at which the coils / and K are arranged. The band I is kept narrow so that the image space does not have to be reduced too much.

The drive of the film and tape can also be carried out in any other desired manner will.

Claims (1)

20 patent claim: Device on cinematographs, consisting of a transparent tape or strip with inscriptions, which is guided across the film over the exposed area, so that the images with the associated inscriptions appear on the light screen at the same time. 1 sheet of drawings.