A film jacket comprising a base sheet, one or more transparent surface sheets, each having three edges thereof fixed to the base sheet so as to form pockets, and cover members fixed to the base sheet for covering extended portions of films outside the pockets, whereby firmly holding films at desired positions.

A perforated thermoplastic film with less than ideally shaped tapered capillaries which has an increased liquid flow rate through the tapered capillaries and a method for making such a film. The method includes forming a perforated thermoplastic film having tapered capillaries from a resin into which an effective amount of a polarizable, migrating surfactant has been blended therewith and then treating the perforated thermoplastic film with a corona discharge treatment sufficient to increase the...

A film pack having a box-shaped case body containing instant picture film units therein includes a depressing unit for biasing the film unit toward an exposure opening of the film pack as well as local depressing members which urge peripheral portions of the film units toward the exposure opening. The biasing force of the local depressing members is substantially independent of the biasing force of the depressing unit, and the biasing force of the local depressing members varies with the number ...

A film cassette for containing monosheets which comprises a protective case having a front opening through which a foremost monosheet in said cassette may be exposed, sheet having a light-proof portion and an open or transparent portion provided between said front opening of said case, and the position which the foremost monosheet is in when said cassette is loaded and means for moving said sheet back and forth between a position in which said light-proof portion is in line with said front openi...

A heat-bondable composite film especially suited for use in storing documents and making identification cards. The film comprises a polyester film and a coating of a composition containing at least one of (a) a polyethylene terephthalate oligomer, (b) a polyglycol terephthalate copolymer, (c) a composition consisting of a blend of a polyglycol terephthalate copolymer with a linear thermoplastic polyurethane elastomer or a mixture of it with a polyisocyanate, and (d) a composition consisting of a...

A laminated film which comprises a film substrate, an adhesive undercoat of a carboxylated ethylene copolymer composition prepared by copolymerizing a monomer mixture of an .alpha.,.beta.-unsaturated carboxylic acid or anhydride and at least one vinylidene monomer of the formula CH.sub.2 =CXY where X and Y are the same or different and each represents hydrogen, chlorine, a lower alkyl containing 1-6 carbon atoms, acetoxy, or a carboxylic ester group in the presence of an ethylene-vinylacetate co...

An X-ray film cassette which comprises (a) a rectangular base member consisting of a flat base plate which has on three sides upstanding walls having thereon inwardly directed horizontal flanges, (b) a cover member held in position on the base member which consists of a flat plate which has on three sides upstanding walls having thereon outwardly directed horizontal flanges, the dimension of both the base member and the cover member being so chosen that the flanges on the cover member can slide ...

A film cartridge loaded with a roll of motion picture film having a magnetic stripe on one surface of the film tends to clockspring in a radial direction and undergo displacement of some convolutions of the film in a direction parallel to the axis of the film roll, especially when subjected to shaking or impacts during handling of the cartridge prior to use in a camera. When this occurs, friction between a displaced convolution and the adjacent convolutions of the film effectively prevents retur...

A film cartridge loaded with a roll of motion picture film having a magnetic stripe on one surface of the film is subject to shaking or impacts during handling of the cartridge which results in displacement of some convolutions of the film in a direction parallel to the axis of the film roll, especially when the film has first clocksprung in a radial direction. When this occurs, friction between the displaced convolution and the adjacent convolutions of the film effectively prevents return of th...

A cartridge for handling an extended length of strip material, such as motion picture film, is adapted to be received in apparatus such as a motion picture camera, or the like. The cartridge includes a pair of spools for, respectively, unwinding and rewinding such film as it passes through the cartridge. To prevent undesired rotation of the spools when the cartridge is not in use, the cartridge includes a lock device disposed to bear against the spools. A lock pin extending exteriorly of the car...