Abstract: A composite material (10) with electrostrictive properties for a mechanical energy recovery device (100) where said composite material comprises a deformable portion (12) in insulating elastomeric polymer material and a filler material (14) homogeneously dispersed in the polymer matrix of said deformable (12) portion, said material or filler (14) being an insulating ceramic material in the form of particles. The invention also concerns said device (100) for the recovery of mechanical energy (100).

Abstract: A shearing apparatus (10) for material unwound from reels comprises a support frame (12) for a working table (14) whereon a moving tape (16) is wound; said apparatus is provided with means for the temporary stabilization along at least a crosswise extended zone of said material arranged on the moving tape (16).

Abstract: A shearing apparatus (10) for material unwound from reels comprises a support frame (12) for a working table (14) whereon a moving tape (16) is wound; said apparatus is provided with means for the temporary stabilisation along at least a crosswise extended zone of said material arranged on the moving tape (16).

Abstract: Multiple head cutting unit, especially suitable for machines utilized to cut leather, skin and synthetic materials with a water jet, including at least a carriage (16), movable along several axes with respect to an underlying work table (14) and a cutting unit supported by carriage (16) and including a nozzle for the outlet of pressurized water, wherein the cutting unit supported by carriage (16) includes at least two cutting heads (26, 36, 38), and at least one of said cutting heads is movable with respect to the other one or ones along a horizontal plane parallel to the work table (14).

Abstract: A handling and supporting structure (10) for cutting machines, applicable in particular to machines that perform water jet cutting operations on leathers, hides and synthetic materials, has a plurality of comb-like elements (12), obtained starting from a reduced thickness sheet. These elements are parallel with one another and/or differently oriented, and are formed by approached and aligned needles (20), whose sides decrease in width from the portion near the base (12') from which they develop vertically up to the top of the structure. The structure also has a supporting frame for the comb-like elements (12), made up by two or more laminations (14) of any form and size, vertically and transversally arranged relatively to the elements (12).

Abstract: A control device for the driving and translation, in a chosen direction, of the movable head of a diecutter machine, provides for the pre-setting of the direction of translation and for the successive driving of the pressing head by means of five sets of sensitive plates switches, disposed in the front portion of the machine. By touching opportunely one or two of said plates, combinative logic circuits are activated that allow selection of the direction of motion, the actuation of the thus preset displacement and the lowering of the head for the cutting operation.

Abstract: Method for operating an automatic hollow punch search device and relevant control, for die-cutting machines, particularly for footwear production, in which a mobile head is associated to a device to move it to and fro, both horizontally and vertically, above a fixed faceplate on which the material to be cut is placed, together with a hollow cutting punch. The movement devices are automatically piloted by a drive circuit interlocked to manual starting device which provides means to carry out a complete head movement operating sequence from its positioning above the hollow punch to its lowering and return to the starting point after cutting.

Abstract: Automatic hollow punch search device and relevant control, for die-cutting machines, particularly for footwear production, in which a mobile head is associated to means to move it to and fro, both horizontally and vertically, above a fixed faceplate on which the material to be cut is placed, together with a hollow cutting punch. The movement means are automatically piloted by a drive circuit interlocked to manual starting means which provides means to carry out a complete head movement operating sequence from its positioning above the hollow punch to its lowering and return to the starting point after cutting.

Abstract: Fast head operating device for flag type die-cutting machines, comprising a hydraulic circuit with one end connected to a feed pump and the other to two cylindrical chambers defined at the base of a column supporting the head of the die-cutting machine, the hydraulic circuit comprising a control valve, equipped with a seal which slides into and is engaged in the body of the same valve to form a fluid communication between a feed conduit and a first inlet conduit, which flows into one of said cylindrical chambers for the rise of the column and with a second inlet conduit which flows into the other cylindrical chamber for the downstroke of the abovementioned column. Interposed on said first inlet conduit, a sequence valve is provided while a further fluid conduit branching from the second inlet conduit, flows into a cylindrical chamber into which a small piston slides and is engaged, carrying, at the opposite end, the mobile contact of a pressure switch connected to the electric operating device.