Abstract: A heat dissipating structure for heating element includes a heating element having a heat generating element for generating heat by being driven, and a first plate member and a second plate member bonded to one surface of the heating element so as to be stacked together. The first plate member has a cutout portion opened to penetrate therethrough and is bonded to the heating element so as to block the cutout portion, the second plate member has a protruding portion fitted to the cutout portion of the first plate member, the protruding portion being structured to penetrate through the cutout portion to be bonded to the heating element, and a modulus of longitudinal elasticity of a material constituting the first plate member is larger than a modulus of longitudinal elasticity of a material constituting the second plate member.

Abstract: A cam groove provided in a chassis is furnished with a first cam portion permitting an eject button to move only forward from being depressed, and a second cam portion permitting the button to shift between its depressed and protruding states. A slide unit interlocks with a switching lever spring-urged toward a push-out plate and moves away from a recording-medium travel path by being pushed by a recording medium when plugged into the chassis. In standby, the switching lever interlocks with the first cam portion, advancing into the travel path. With a recording medium bieng plugged into the chassis, by the eject button being pushed a first time the switching lever withdraws from the travel path and shifts into the second cam portion, permitting the eject button to protrude backward. By the eject button being pushed a second time, the push-out plate and slide unit are put into cooperation.

Abstract: A cam groove provided in a chassis is furnished with a first cam portion permitting an eject button to move only forward from being depressed, and a second cam portion permitting the button to shift between its depressed and protruding states. A slide unit interlocks with a switching lever spring-urged toward a push-out plate and moves away from a recording-medium travel path by being pushed by a recording medium when plugged into the chassis. In standby, the switching lever interlocks with the first cam portion, advancing into the travel path. With a recording medium bieng plugged into the chassis, by the eject button being pushed a first time the switching lever withdraws from the travel path and shifts into the second cam portion, permitting the eject button to protrude backward. By the eject button being pushed a second time, the push-out plate and slide unit are put into cooperation.

Abstract: A front mechanism mounted on a chassis loads a cassette in place by causing a first projection and a second projection on each of opposite side portions of a cassette carrying tray to slide along respective guide grooves formed in each of side plates. Power is transmitted from a drive cam gear provided on the rear side of the chassis to the tray via a drive mechanism, intermediate gear and rotary gear. For loading, the tray initially starts to move as inclined with the first projection and the second projection sliding along slanting grooves and is thereafter lowered by sliding movement of the projection along a vertical groove and sliding movement of the projection along a descent groove while being corrected from the inclined position to a horizontal position. Upon completion of cassette loading, the intermediate gear and the rotary gear constitute a Geneva stop, and the drive cam gear disengages from the drive mechanism.

Abstract: A chassis is slidably provided with a circular-arc control slide bulging toward a rotary cylinder and having projections spaced apart from each other. Reel supports and a reel drive mechanism are arranged on the curving-in side of the slide. Disposed on the path of movement of the slide is a drive cam gear formed with cam grooves each extending from an outer peripheral opening toward its center. The slide is formed thereon with a toothed projection which meshes with the cam gear during a period after one of the projections is fitted in the corresponding cam groove and until the other projection is fitted in the corresponding cam groove.

Abstract: A process for producing regenerated collagen fiber from solubilized collagen including adjusting a degree of swelling of solubilized collagen to 100 to 300% and then treating the resulting solubilized collagen with an aqueous solution of a metallic salt. The regenerated collagen fiber has excellent water resistance and undergoes no waving on contact with water.

Abstract: A magnetic tape back tension device in a magnetic recording-reproduction system having a band brake mechanism for lightly applying a braking force to a supply reel support, the band brake mechanism comprisinga brake release lever rotatably mounted on a chassis,a band brake having one end attached to the brake release lever, reeved around the supply reel support and attached at the other end thereof to a tape tension maintaining mechanism, anda spring for biasing the brake release lever into rotation in a brake applying direction,and further having a control plate slidably provided on the chassis, the control plate comprisinga first contact face movable into contact with the lever biasing spring by the sliding movement of the control plate toward a mode change position to free the brake release lever form the force of the spring, anda second contact face movable into contact with the brake release lever by the sliding movement to rotate the lever in a brake slackening direction.

Abstract: The present invention discloses a flame-retardant acrylic synthetic fiber comprising acrylonitrile and a vinyl monomer copolymerizable therewith and containing a finely divided inorganic tin compound. The fiber has high flame retardancy, outstanding gloss and transparency, and satisfactory whiteness and dyeability.

Abstract: A copolymer comprising (a) vinyl chloride or a mixture of vinyl chloride and a monomer copolymerizable therewith and (b) 1,2-polybutadiene oligomer and/or epoxidized 1,2-polybutadiene oligomer. The plasticized copolymer can be molded into soft moldings having a low compression set and high tensile and tear strenghts. Also, by the incorporation of the copolymer into vinyl chloride homopolymer or copolymers, hard moldings having delustered surface can be obtained without conducting delustering operation.

Abstract: A copolymer comprising (a) vinyl chloride or a mixture of vinyl chloride and a monomer copolymerizable therewith and (b) 1,2-polybutadiene oligomer and/or epoxidized 1,2-polybutadiene oligomer. The plasticized copolymer can be molded into soft moldings having a low compression set and high tensile and tear strengths. Also, by the incorporation of the copolymer into vinyl chloride homopolymer or copolymers, hard moldings having delustered surface can be obtained without conducting delustering operation.