Abstract: There is provided a single-tank X-ray unit having a closed cooling circuit arranged in a housing for circulating a cooling agent to discharge the heat generated in the anode. The cooling circuit includes a feed duct and a return duct respectively wound helically around the high-voltage generator. A fan is so positioned in the housing as to pass cooling air over the cooling circuit, the housing having openings respectively for the intake of the cooling air and the discharge of the same.

Abstract: A shaving apparatus comprising a shear plate and an associated reciprocatory cutting member is provided with cutting elements each having a frusto-conical cross section and being in contact along its base with the shear plate, the opposite sloping sides of a cutting element each forming a guide face. A plurality of individual lead cutters is movable relative to an associated guide face, with such plurality of lead cutters being arranged in side-by-side relationship and engaging the guide face. The lead cutters respectively engaging opposite guide faces are disposed in pairs. Each lead cutter moreover is elastically loaded in the direction of the shear plate.

Abstract: A hair roller holder comprises an elongated hollow handle defining a chamber for successively accommodating a plurality of hair rollers. Associated with the chamber is an arrangement for electrically heating the rollers therein. The chamber has an inlet opening at one end for insertion of the rollers in unheated condition and an outlet opening at the other end for discharge of the rollers in heated condition. Adjacent such outlet opening and externally of the chamber is a support for receiving a heated roller in a manner so that hair can be wrapped onto the roller and the roller can be manipulated by the handle. Provision is made in the chamber for guiding movement of the successive rollers therethrough onto the support. The movement guiding means may comprise guide pins in the chamber upon which the rollers are slidable and which are provided with electric heating elements for heating the rollers.

Abstract: A shaving apparatus has a circular shear plate provided with hair-entry apertures and a cutting unit associated with and rotatable relative to the shear plate. The cutting unit comprises a cutting member having a circular central body provided with circumferentially arranged cutters and lead cutters respectively associated with and movable relative to the cutters. Each lead cutter is secured to the central body of the cutting member by a resilient connecting arm, the inner end portion of which extends substantially radially with respect to the cutting unit axis and undergoes torsion-loading by reason of the movement of the lead cutter away from the shear plate, the lead cutter being connected eccentrically to such inner end portion. The torsion-loading is elastically opposed in each instance.

Abstract: A shaving apparatus has a circular shear plate provided with hair-entrance apertures and a cutting unit associated with and rotatable relative to the shear plate. The cutting unit comprises a cutting member having a circular central body and a hair-pulling member having a circular central portion. Cutters extend from the central body circumference toward the shear plate, with each cutter having a guide wall. A lead cutter is associated with and movable along the guide wall of each cutter, the lead cutter being connected to the central portion circumference by a V-shaped elastically deformable arm. One link of the connecting arm is secured to the central portion and extends tangentially therefrom; and the other limb is connected to the lead cutter. Each connecting arm is elastically deformed so as to urge its lead cutter against the guide wall of the associated cutter.

Abstract: A dry-shaving apparatus comprising a circular shear plate; a circular cutting member associated with and rotatable relative to the shear plate; mechanism to effect rotation of the cutting member; and a rotatable spindle tiltably coupled at one end to said cutting member and tiltably coupled at the other end to said rotating mechanism, each such tiltable coupling including a three-point contact equi-spaced about the axis of rotation of the rotatable spindle between said rotatable spindle and the cutting member on the one hand and between said rotatable spindle and the rotating mechanism on the other hand.