Abstract: A method for manufacturing electrical components of the energy-accumulating electrostatic or electrochemical type, consisting in winding at least two layers of a film on a support made of an electrically nonconducting material that has a substantially polygonal cross-section, by providing a preset number of film turns until a predefined thickness is reached, and forming a first layer; arranging respective spacers at the corners of the polygon in which the contour of the wound film is inscribed; and winding more turns of film around the first layer and around the spacers inserted at the corners, to form a second layer. A machine by means of which the method is performed comprises a rotatingly mounted frame on which the support is fixed for winding of the layer of film.

Abstract: A method for manufacturing electrical components of the energy-accumulating electrostatic or electrochemical type, consisting in winding at least two layers of a film on a support made of an electrically nonconducting material that has a substantially polygonal cross-section, by providing a preset number of film turns until a predefined thickness is reached, and forming a first layer; arranging respective spacers at the corners of the polygon in which the contour of the wound film is inscribed; and winding more turns of film around the first layer and around the spacers inserted at the corners, to form a second layer. A machine by means of which the method is performed comprises a rotatingly mounted frame on which the support is fixed for winding of the layer of film.

Abstract: The device comprises a rear part containing a motor connected through a series of crown gears and of spindles to a front part shaped complementarily to the rear part, and containing a reel on which a dental floss is wound up, and a truncated-cone element on which the floss winds up as it is used that engages with a spindle driven into continuous rotation, while a small roller with two circumferential races engages with another spindle which is made to oscillate about its vertical axis, so that the dental floss encompasses the small roller and runs between the ends of two branches of a fork and is thus caused to advance swingingly as well as gradually removed after use.