Abstract: A device for adjusting position of a head for reading out or writing in. The device includes an eccentrically rotatable member which moves the head so as to change its position relative to a recording medium and an actuating member for eccentrically rotating the rotatable member, the actuating member being coupled to the actuating member.

Abstract: In magnetic disk equipments or the like, the read/write magnetic heads are each bonded to the wall of a thru-hole of a carrier plate adapted to act as a "flying" member maintained by an aerodynamical action in close proximity to the surface of the rotating disk. In a device according to the invention, the bond between the lateral surface of the head and said wall is made to ensure magnetostatic and electrostatic shielding of the head against spurious magnetic, electromagnetic and electrostatic fields. Said bond may comprise thin films of a high permeability anisotropic material coating at least the facing surfaces of the head and the wall and a layer of solder intervening between said films. Such a shield may partially extend over selected areas of the rear faces of the plate and head.

Abstract: A magnetic recording and reproducing head is provided for use in cassette applications. The head comprises a pair of tracks and is constructed such that the reading gap assigned to the first track is aligned with the recording and erasing gap assigned to the other track, the tracks being arranged reciprocally.

Abstract: A magnetic head assembly and the method of manufacture therefor comprising a generally cylindrical housing having a tapered portion at one end thereof terminating in a circular aperture having an inner diameter, a circular slider body having an outer diameter slightly less than the inner diameter, a media engaging surface and an internal surface and being disposed within the circular aperture and affixed to the housing. The body also includes a first elongated slot disposed along a first diameter and extending through the body, a second slot disposed along a second diameter normal to the first diameter and extending into the body from the internal surface, and a central aperture extending through the body at the intersection of the first and second slots. A read/write transducer has a pair of read/write pole pieces which are separated to provide a read/write gap and which extend into the first slot with the read/write gap positioned with the central aperture.

Abstract: A method of making a multi-core magnetic head in which two blocks of magnetic, ceramic material, configured to the desired pole piece shape, are joined with the two surfaces defining the gap being glass bonded, and the block cut to form individual pieces which are then glass bonded in grooves in the bottom of a U-shaped non-magnetic holder so that the pieces extend upward into the region bounded by the holder sides. The region is then potted and a carbon fixture placed over the ends of the upwardly extending pieces to provide additional mechanical strength. The potted assembly is then cut to leave upwardly extending pole legs.

Abstract: A tape recorder is provided with an erasing head, a bearing member for rotatably journaling a pinch roller and a pinch lever for supporting the bearing member, all of them being integrally combined. The erasing head has its slidable contact surface projected into the tape path side with one of its side surfaces being faced to the peripheral surface of the pinch roller, and upper and lower flanges thereof projected over the slidable contact surface are used to guide a tape therebetween.

Abstract: A magnetic tape head includes a pair of core holders containing the core elements of magnetic cores. The tips of the magnetic cores are urged towards each other when the core holders are clamped in abutting relation by a metallic U-shaped clip. The bight portion of the clip engages the tips of the magnetic cores and engages the inner surface of the metallic housing in which the core holders are positioned to ground the tips of the cores. The legs of the clip are urged inwardly with a scissors action by engagement with the inner surfaces of the housing to further exert a clamping action on the core holders and to thereby urge the tips of the core elements towards each other so that the flux gap is maintained.