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A film dryer is provided primarily for use in the graphic arts in which relatively large sheets of film must be processed and dried. A part of input rollers is of sufficiently hard rubber as to squeegee off most of the surface moisture which drops into a drip pan where it may be emptied. Subsequent guide rollers are of short axial extent and spaced apart. Air jets are slightly warmed and blow generally toward one another and against the surface of the film, and back toward the entrance, whereby ...
The invention is concerned with a means of compensating for film shrinkage in a continuous film motion telecine apparatus. A measure of the film shrinkage is obtained by deriving a signal representing the angular speed of a roller in non-slipping contact with the film, the film being driven at a constant frame rate by, for example, a smooth capstan servo-controlled to maintain the constant frame rate. The roller whose angular speed is measured may be the drive capstan itself or a separate roller...
An elongated flexible leader for inserting into a film processor and guiding a roll of undeveloped film therethrough. The leader is attached to the film by inserting a tongue which is part of the leader through an aperture in one end of the film.
A device is disclosed for smoothly, continuously, and more effectively shredding laterally-extended film material of indefinite length without jerking the film material into the device with excessive force. Cooperating cutting edges are used--one serrated, another smooth.
The film cassette includes a main part having a chamber for the film supply and a detachable part movable transversely to the longitudinal direction of the main cassette part and supporting for rotation a take-up spool; a sprocket roller for engaging the film is arranged in the main cassette part between the supply chamber and the take-up spool and being engageable by a first driving gear by means of a clutch controlled by the film transport mechanism in the camera and a manually operable pushbu...
A base defining an upwardly facing sheet supporting surface and an elongated support member is mounted on the base and projects upwardly from the sheet support surface. The support member includes spacer structure spacing portions of the support member from the base to define an open slot between the base and the spaced portions of the support member. A pair of aligned support blocks are supported from the support member above the opposite end portions of the slot and an elongated head extends b...
The film reader has a substantially cubic housing one wall of which is formed with a projection screen, an intake slot for a film to be projected, a focus control knob and two slots for position control levers movable along mutually normal axes near the screen. The transmission means between a film holder and respective control levers include a longitudinal carriage movable on two guiding tracks along one axis and supporting a transverse carriage for a transverse movement along the other axis. E...
Irradiated film having substantial uniformity in the radiation dosage profile is produced by irradiating the film within a trough having lateral deflection blocks disposed adjacent the film edges for deflecting electrons toward the surface of the trough bottom for further deflecting the electrons toward the film edge.
An opaque casing houses a plurality of instant photographic film units each of which has spaced apart photosensitive and cover sheets and an access hole for introduction of processing fluid into the volume between the sheets. The casing has a container of processing fluid. Fluid passage means from the container terminate at a small cross-sectional area opening positioned to align with the access holes of successively exposed film units so that processing fluid can be introduced into the film uni...
A transparent polyester film having excellent antistatic properties, which are little effected with variation of the humidity, and further having excellent flexing resistance, pinhole resistance and printability, which is made from a mixture comprising (i) a polyester consisting essentially of a residue of dibasic acids wherein at least 80% by mol is terephthalic acid and a residue of at least one glycol and (ii) a block copolyester consisting of a crystalline polyester segment having a high mel...
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