SU97964A1 - Device for pulling passport - Google Patents

Description

When printing color films, a paper tape with holes and color folic filters is used as a light film, which is pulled by a mechanism controlled by electrical emulsions. The tape moves in the non-film channel where it is copied with a beam of light.

The use of this device for pulling the passport ribbon causes a number of deficiencies: jamming the tape in:;. .

In the known devices for pulling the passport ribbon, the reversing of the mechanism is also extended; But the tape doesn’t run through the channel, it reduces the reliability of the mechanism and significantly complicates it.

In order to ensure the reliability and newness of the accuracy of drawing a mite, in the proposed troystroi gear box:

Ma FIG. 1 shows a schematic of the proposed device; in fig. 2 n, - presentation of the crystal with the vari-options of the direct path; and when they break.

The numeral / denotes the light source, the sound of which falls through the capacitor 2 onto the passport tape 3, which is projected by the multi-tooth drum 4, which is provided with a lumenpamp, allowing the light beam to fall onto the film 5.

When the completed device operates with a forward-moving beam, the light beam twice passes through the windows in the drum 4, one of which is closed with a passport mint, non-floating filters 6. ProjYo 97964-2 -

The luminous windows in the drum 4 are sized to ensure that the light beam is not screwed. To do this, two teeth in the drum are removed in the middle window, which does not affect the direction of the tape.

In the embodiment of the device with a fracture of the light beam of the optical power supply line of the mirror 7 installed inside the drum 4, the light beam passes through only one window of the drum. The shape and size of the windows in the drum correspond to the "aperture of the opening of the passport tape 3, which is held on the drum bar 4 with the aid of the pressure rotor 8.

The rotation of the pulling drum can be carried out by any of the known methods, pan-meter, using the machthian ciiciema, driven by a single turn coupling.

When working with long passport belts, devices 9 are installed before and after the toothed drum and for winding and winding the belt.

One of the rows of teeth of the drum 4 is made equal to the width of the hole pattern of the passport tape, which is skull-rimmed.

The possibility of pulling the printed ribbon in any direction makes it easy to carry out: 1 reversal required in many canvases.

Subject invention

1. A device for pulling a passport tape in copying machines, which is rotated by an electric impulse mechanism from the nipples at the edges of the cinematic membrane, characterized in that, with the aim of increasing the reliability and accuracy of the tape grip, placed on the path of the through passage of the light beam falling into the window of the copier.

2. The device of item 1, of which there is a mirror located inside the drum, which serves to break the light beam and pass it only through one window in the drum.

Fig 2

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