SU34291A1 - A device for promoting films in a film projector - Google Patents

Description

The present invention is a further development of the device for pro; In the proposed version of the device, the transport mechanism also does not contain organs intermittently acting on the tape perforation, and is equipped with flexible sleeves for tape passage, but unlike the first version, the flexible sleeves are attached to the frame, the swings of which create the necessary discontinuity of the tape movement.

In the schematic drawing of FIG. / 1 shows a side view of the device; FIG. Z- / top view; FIG. H detail spring loaded STF (section along the line; AB in Fig. 1); FIG. 4 and 5-frame in two projections .;

The device of FIG. 1 CONTAINS a supply coil / from which the ribbon passes to the main drive shaft 2, against which the pressure roller 5 presses it with a spring 4 adjusted by a screw 5. The circumference of the roller 2 must correspond to the whole number of the UieHTbi tsadr. To direct the ribbon in frame 9 and then back to the roller 2, under the pressure roller 70, there is a flexible sleeve 5 attached to frame P (Fig. 4 & 5) with clamps 7 and 5, and roller 70 is provided with cable 7 / and

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SCREW 72. The bottom of the receiving tape is the coil 75.

To communicate the swing to frame 9, there is a roller 2 mounted on the axis 25 (Figs. 1 and 2) and an eccentric J4, the number of teeth of which corresponds to the number of frames arranged around the circumference of the roller 2. , The eccentric J4 is supported by the rod 75, which is under the influence of the spring, J6 and is equipped with a button 77 (Fig. 3). The ejector 75 is mounted in the guides 75 and is connected at its lower end with a lever 79, which in turn is fastened to the frame 9 (fig. 1) moving in the grooves 24. Axis 25 is connected to the obturator shaft 27 by means of bevel gears 20, reinforced on the outside of the frame 27; at the other end of the base 25, the arm of the cloth is installed .26.

The light source 23 is located in the middle of the loop of the sleeve b (Fig. 1) in front of the lens 22.

When refueling the tape into the projector, the DOWN button 77 (FIG. 3) is retracted and the end of the tape from the coil 7 is passed between the rollers 2 and 5, rotating the handle b. When the tape, having passed the sleeve and the frame 9, comes out between the rollers 2 and W, its end is fixed on the reel 73, the frame is framed and, lowering the button 77, let the picture go.

The rod 15, with the aid of the lever 19, communicates the movement of the frame 9, which clamps the middle part of the sleeve b, which is what creates the change of frames. .

The subject matter of the invention.

Modification of the device for film advancement in a film projector

copyright certificate for Ks 18025, characterized in that the flexible sleeves are attached by clamps 7 and (Y to frame 9, for the message of movement of which serves the lever / I articulated with biased rods 15 in contact with the eccentric 14 on the axis 25 of the main driving roller.

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