Abstract: A mechanical winding device for obtaining complex movements comprises a first means for causing movement from one point whose projection on a given axis is a sinusoidal movement with respect to time at a determined frequency. A second means causes the movement of the first means in such a way that the projection of the point of movement along a given axis is the algebraic sum of a sinusoidal movement in respect to time at a determined frequency and of a sinusoidal movement in respect to time at a frequency three times that of the previously determined frequency. Receptor means for the movement is also obtained.

Abstract: A toroidal vertical deflection winding for use with a yoke designed for a large screen, color cathode ray tube having in-line guns and a wide deflection angle, the winding constructed to achieve deflection and self-convergence of the electron beams over the entire screen of the tube without coma effect, the winding comprised of a frustrum-shaped magnetic core with three quarter-section primary clusters of toroidally wound conductors formed thereon in predetermined arcs, the conductors of at least one of said primary clusters being non-radially wound, said conductors being positioned generally geometrically parallel to each other and said primary clusters having substantially predetermined numerical conductor relationship.