New mural didactic device with multiple printed circuits. (Machine-translation by Google Translate, not legally binding)

摘要

New wall didactic device with multiple printed circuits essentially characterized in that it is constituted by a set formed by frames proper and a wall hanger in the form of a bar with hooks from which one or more of said frames are suspended, also forming part of this set a magnet of special features and a pointer made of wood or plastic material, which are used as tools to operate the frames, each frame being constituted by a set of pieces in sheet or sheet form that are superimposed on each other. On top of others, and joined together by means of a self-adhesive tape of plastic material that borders the painting; being these pieces, a printed sheet in which it is represented, in dominant form, a central figure relative to a given theme, while in a place available from it, or around the central figure, are generally located in order alphabetical, the names of populations and geographical features, or of human organs or parts of an engine, etc., according to the theme represented by the central figure, each of which is accompanied by a rectangular box indicating the place where the magnet should be applied; a printed circuit, specially designed for this type of frames, which can be integrated by one or more printed circuit elements, each of which consists of a thin and flexible support of an insulating laminar material on the face of which the viewer is hidden. It has adhered the conductive tracks of aluminum, (tin or other metal, an insulating sheet of paper, provided with holes and of grooves of contour in toothed form, by which it is possible, respectively, to establish contact between the ends of the corresponding tracks to the answers and the aluminum film of a metallic paper located behind, as well as between the ends of the tracks corresponding to the questions and a sheet of iron located behind the foil, the sheet of foil mentioned above, whose metal face formed by an aluminum film is in front of the viewer, while the paper support is on the hidden side of it, the sheet of iron cited before, which is adhered to a sheet of cardboard that acts as a base and gives rigidity to the entire laminar assembly. Two metal tongues are applied to this cardboard, each one with its respective perforation, through which the respective hooks of the hanger are inserted, each being fixed by means of a metallic rivet arranged so that one of them establishes electrical contact between its tongue. And the iron sheet, while, the other establishes electrical contact between its own tongue and the aluminum film of the foil, existing on the hidden side of this sheet. Cardboard, a question sheet printed with the same central figure of the obverse sheet, differentiating itself from the one in which it has the names printed next to the places where the populations are located, geographic features, human organs, etc. (Machine-translation by Google Translate, not legally binding)