SU60514A1 - A device for charging on the light of cassettes of film cameras such as "Fad" - Google Patents

Description

For charging on the light, film cameras such as "Fad," Lake and others, offer a special device made in the form of a box into which a photographic camera cassette and a cardboard film cassette in the package are inserted; at the same time, there are holes in the cardboard cassette for a key for rewinding the film.

FIG. 1 given the type of device assembled; in fig. 2 - the same, with the cover removed; in fig. 3-appearance, cardboard cassette; in fig. 4 is a section along the line AB of FIG. 3; in fig. 5 is a section along the line of VG of FIG. 3; in fig. 6 - flange attachment.

The device is a box of tin or cardboard, the case 1 and the cover 2 of which are blackened or pasted over with black paper; The lid has two openings 4 located at the centers of the ellipse inscribed in the horizontal section of the box. The cover of the device from the inside is glued with black cloth. The holes in the lid allow the key 3 to be inserted into the box for rewinding the film. One hole of a large diameter is used to rewind a film from a cardboard cassette into a metal one, and the other of a smaller diameter, to rewind it after exposure.

The device, when not in use, serves as a cassette holder for one metal and one or two cardboard ones.

A cassette 5 of the photographic camera Fad or Lake, etc., and a cardboard cassette 6 with a key 7 for a key are inserted into the box. The cardboard (or pressspan) cassette 6 consists of a body 8 with a tight-fitting closure; with a lid 9, the body and the lid are glued inside and outside with black opaque paper.

The outer side of the cassette case on the long side is covered with a strip of black velvet velvet 14 to protect the emulsion film 15 from scratches when the film is pulled out of the cassette.

A film 15 wound on a wooden bobbin 11 with an emulsion inward is placed into the cassette case and secured with a wire bracket 13. The free end of the film, partially adjacent to the velvet, is released 2-3 cm outwards, trimmed with an angle and bent to the case.

With this position of the film, the body 8 is closed by the cover 9. For rewinding the film in the case and the cassette cover, there are holes 10 corresponding to each other and to the device cover for inserting the key 3, which captures the bobbin 11. In the bobbin bobbin lengths. To prevent light from penetrating into the cassette through the film rewinding opening, a pin with a flange 12 is inserted into the opening of the body of the cardboard cassette, which represents the usual piston ring used in cardboard and shoemaking. In the housing, the flange is held by the cassette cover 9 in the closed position.

If the cardboard cassette is intended for reuse, the flange 12 must be attached with an outer edge to a folded paper strip 16 attached to the cassette body 8, as shown in FIG. 6.. The device is used as follows. When charging, the free end of the film coming out of the cardboard cassette is attached in the usual manner to a bobbin of a metal cassette, which is inserted into a metal cassette. After that, the cassette is closed, then both cassettes are inserted into the device, the device is closed, taken in the left hand, the lid pressed by the fingers, and the key is inserted into the larger opening with a right hand, which is then rotated counterclockwise to failure, rewinding the cardboard cassettes in metal, after which both cassettes are removed from the device and the film is cut, and to save 5 cm of the film, you can not cut the film, but, having opened the cardboard cassette, cut it at the bobbin itself.

To rewind the film, opening the cardboard cassette, remove the flange and the empty bobbin is easily thrown out of the case; The free (cut off) end of the film is passed under the wire clip of the bobbin and folded, after which the bobbin is inserted into the case, the flange is inserted and the cassette is closed. The cassettes are inserted into the device, holding the cover with your fingers, the key is inserted into the / smaller hole and, turning the knob clockwise, rewinds the film back into the cardboard cassette. Having removed a film from a cassette device, it is cut or released from a metal cassette, revealing the last one.

A film packed in a cardboard cassette should have three more outer shells — paraffin paper, staniel, and an outer advertising sheath (similar to the packaging of filmpacks).

Subject invention

A device for charging on light cassettes of film cameras such as "Fad," Watering Can, etc., characterized in that it is made in the form of a box with a lid for holding the camera cassette and a film reel in a package that prevents the coil from rotating in the box but allows rotating it inside the package and provided with a hole for inserting a key for rewinding the film.

FIG. one

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FIG. 2

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FIG. 6 8

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