Abstract: The invention relates to a device for simultaneously printing and developing photographs, of the type essentially comprising three main assemblies, namely, respectively:a first exposure assembly A,a second assembly B in camera obscura;a third developing assembly C,characterized in that the cutting part of the fixed knife defines on the light-sensitive paper the part exposed by the light beam issuing from the lens.

Abstract: A single-piece transparency frame for holding a film therein comprising: a window-shaped opening, the width and length of which on the front face are greater than the useful length and width of the film to be inserted, and on the rear face are less than that length and width; two horizontal grooves provided in the plane of the film in the lengthwise direction of the film; two narrow sides located on the front face of the opening which are extended by parallel slots which in turn open into said horizontal grooves.

Abstract: A subtractive filter having three elementary filters, each comprising a fixed cylindrical central portion having at its center a channel for the passage of the light and on its surface a radial milled slot; a rotary ring concentric to the said fixed cylindrical central portion having a graduation on its central periphery, the inside of said rotary ring having the shape of a logarithmically progressive ramp; and a filter holder comprising a frame adapted to slide in the said radial milled slot in the fixed cylindrical central portion, the bottom of said frame having the shape of a rounded point which rests against said ramp and the top of said frame having a spring resting against a part fastened to the periphery of the fixed central portion, said frame of said filter holder comprising at its top a window opening and at its bottom the filter. Regulation of light passing through each of the three filters is accomplished by rotating the rotary rings.

Abstract: An integrated automatic device for the simultaneous printing and development of photographs, particularly color photographs, of the type comprising three separate units adjoining each other, namely a first exposure unit A, a second dark-room unit B, a third development unit C. The dark-room unit B is vertical and perpendicularly adjoins the end of the exposure unit A and the development unit C is horizontal and is located below the dark-room unit B and parallel to the exposure unit A.

Abstract: An automatic apparatus for developing photographic or similar films comprising processing tanks arranged in a light impervious compartment in seriatim; an articulated arm pivoted on one end to a base located at the center of the processing tanks and having at its opposite end a member intended to receive the spiral on which the film to be developed is wound; apparatus adapted to impart to said articulated arm angular displacement in order to transfer the spiral from one tank to another and repeated upward and downward movement in order to agitate the spiral in a particular processing tank; and a control programmer for controlling the duration of the movements of the arm.

Abstract: The present invention relates to a machine for automatically stamping license plates, in particular for automotive vehicles, comprising a motor and a flywheel solidly joined to the machine frame for the purpose of activating a stamping system with punch and die using a clutch system. The clutch system is a non-slipping rotary system formed by a cam mounted in idle on the motor shaft.

Abstract: The invention relates to a printing machine which makes it possible to effect ink or dry letterpress printing of different objects or to make moulds for stamps.The invention provides a printing machine having a movable head which carries a printing unit and a support for holding objects to be printed. The movable head is designed to receive different accessories, such as an inking device, and the support is designed to receive different platens according to the object to be printed. The invention is applicable to manual or automatic printing machines.

Abstract: A key blank selector-dispenser comprises a drum having a central axis aperture and several series of radial cells for receiving magazines of key blanks and contained in respective radial planes of the cylinder. The drum is rotatable by an electric motor having an electromagnetic brake. Key blank ejectors for each said series are provided in said aperture and are located in the same diametral plane of the drum.A control panel has a number of slots for insertion of specimen keys equal to the number of said cells. Means actuatable by insertion of a specimen key closes the motor circuit to start the motor. A cam on each series of cells operates a limit contact when a cell having a desired blank comes into the plane of the ejectors to effect stopping of the motor and actuation of the ejector corresponding to the series selected.

Abstract: A motor driven rotary cam forces back a hammer against a spring and then suddenly releases it to provide an impact stroke to a pivoted massive lever which carries, at the end opposite the portion driven by a hammer, a lock pick needle held in a chuck. It is not necessary to feel out the position of the tumblers of the lock, because the impacts, repeated as necessary, drive the counter-pins away from the tumblers against their respective springs and an auxiliary tool carrying a weight, which does not need to be held in the hand of the operator, can turn the lock when the counter-pins have been propelled sufficiently far into the standing part of the lock. The force of the stroke, stroke length and repetition rate are all adjustable, as well as the torque applied by the auxiliary tool, in each case by a simple adjustment.

Abstract: A flat key comprises a blank cut on a copying machine to form a shank, having a shank head. An intermediate head is formed with a slot, in which the shank head is received. A key head is detachably connected with the intermediate head, with wedge action between these latter heads.