Abstract: Quick attachment system for an appliance or instrument, e.g. a camera, with a mounting support and an insert connected to the appliance, which carries on its upper boundary surface the appliance to be fixed and is so insertable in the mounting support that, in the inserted state, the upper boundary surface of the insert is located substantially below the upper boundary surface of the mounting support, accompanied by the bracing of the appliance bottom against the upper boundary surface of the mounting support, characterized in that the insert has a square ground plan and trapezoidal cross-section, that the insert can be connected by a separate fastening screw and a twisting-preventing pin to the appliance or is constructed in one piece therewith, that an eccentric lever acting directly on the insert is provided for securing purposes, that the upper boundary surface of the insert is 0.

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: 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.