Abstract: Mat and rough endless sheetlike, ribbon-shaped or filiform polymeric products, preferably natural-fiber-like mat and rough textile products of chemical fiber materials, in particular of synthetic fiber materials, or mat and rough polymer films with low transparency are produced by contacting endless sheetlike, ribbon-shaped or filiform polymeric products with fine particles of organic or inorganic solid matter. This gives the textile structures a rough, woolly, soft feel and they are mat, while films become rough and mat and have a low transparency.

Abstract: A device for electron irradiation of rolled materials comprises an electron source arranged in a radiation protection chamber, and a drum for transportation of rolled material in a slotted irradiation zone, defined by the radiation protection chamber wall on one side and by a housing wall on the other side. The drum is made as a cylinder arranged on rims so that a part of said cylinder is located in the irradiation zone between the radiation protection chamber wall and the housing wall.

Abstract: A film-splicer for splicing together the abutting ends of a pair of films by means of a splicing label having supporting paper strips and a intermediate tear off piece. A base pivotally mounts a film-turning windowed flap. A pair of film clamps on the flap allow the locating of the film-ends-to-be-joined relative to the flap. An upwardly-facing projection extends upwardly from the base and through the window in the flap. Prongs extend upwardly from the projection for aligning the splicing label relative to the abutting film-ends-to-be-joined. A cam is pivotally mounted on the base. A folding and detaching pin has opposite free ends, is pivotally mounted on the flap, and extends across the window. The tear-off piece is folded in a hairpin-like manner around the pin by means of the cam.

Abstract: Adhesive splicing tape, for cinematographic film, of the type having apertures for registering with the film sprocket holes and adapted to be folded in hairpin fashion about respective one edges of film portions to be spliced, has a central portion thereof, which would normally embrace the said one edges and overlie a sound track there-adjacent, readily detachable to enable it to be removed after a joint has been made to leave the sound track uncovered and to leave the said one edges uninterrupted.

Abstract: A film splicer has a base, a lid hinged thereto and carrying a blade, and a film support plate, which plate has two portions carrying pegs for engaging in the sprocket-holes end portions of two lengths of film to be spliced and holding them in desired positions. The said two portions of the plate are separated by a slot and the lid carries a plunger, which as the lid is closed, engages the slot to spread the portions before the cutting knife trims the ends of the lengths of film. After the cutting the two portions move back towards each other, thus compensating for the usual gap which is left between the two film length ends due to the passage of the blade.

Abstract: A frame for a transparency is made in one piece with oppositely directed slots on opposite sides of its window to allow a film section to be snapped into the slots and retained thereby cooperant with a tool for snapping the transparency into position in the frame.