Abstract: A tape cassette is provided with curved/bent support liners, the longitudinal bends having different cross-sectional shapes and lengths and hence different effective spring constants. The hubs or reels and, if necessary, the tape rolls are guided and the tape sections to be wound/unwound are aligned.

Abstract: A container for tape cassettes is provided with one or more locking elements which comprise one or more ring segments which are roughly adapted to the drive orifice of the cassette. An advantageous embodiment is formed integrally with a web and, preferably, an ejector peg. Overlaps in the edge contour part of a joint and the height of the peg adapted to the internal dimension of the container provide greater stability to lateral compressive forces and forces acting during fall.

Abstract: A tape cassette has a two-reel brake system having identical brake levers and an actuating element possessing actuating arms for the brake levers, the actuating arms being arranged at least close to the ends of the swivel axle. The brake system is suitable for all two-reel tape cassettes, in particular video cassettes.

Abstract: A locking/unlocking means for cassettes, in particular those having swivel cover flaps, consists partially or completely of elastically deformable material and is pivotably mounted at two or more points. In the rest position of the locking/unlocking means, advantageously a swivel plate, an essentially tension-free arrangement is obtained by means of a supporting extension above the bearing axis, by actuation from outside, the said arrangement being converted in the operating state, without further spring elements, into a state of tension and into a position in which the supporting extension rests against the inside of an outer cassette wall and a reaction force corresponding to the actuating force is generated without any additional spring. Such a locking/unlocking means is suitable for cassettes of all types.

Abstract: A cassette incorporating a locking element, in particular for a hinged flap of the cassette, has mounting elements which are arranged so as not to turn in at least one retaining slit and a resiliently flexible integrated part which products a bending and torsional stress when the locking element is actuated.

Abstract: A guide means for tapes to be transported, in particular in tape cassettes or tape apparatus, comprises a support element and a flexible guide strip, in particular one made of metal foil, fixed on this, and at least one holding element for the end sections of the flexible guide strip. The guide strip possesses a predetermined thickness and may be drop-shaped or pear-shaped in the operating position. The tape guide means may also comprise a support element whose surface is at least partially cylindrical and a flexible guide strip which is fastened thereon. As a separable unit which can be preassembled, the tape guide means can therefore also be employed for automatic manufacture. The tape guide means can be used for tape guides which are either stationary or movable within limits, in the field of tape-like recording media, such as films, magnetic tapes, punched tapes, etc.

Abstract: A magnetic tape transport apparatus wherein at least one capstan simultaneously drives the take-up and supply reels, and wherein tape tension is generated by a braking device allotted to each tape reel, each braking device consisting of an assembly of levers (A, B, C, and D, E, Z) and a braking cable which is wound around the axle supporting the tape reel, and by means of which the braking forces are so adjusted that it is always the axle of the supply reel which is braked, while the axle of the take-up reel runs relatively freely. In a practical embodiment, the lever assembly comprises at least three hingedly connected levers (A, B, C and D, E, Z), viz. two lateral levers and an interconnecting lever, it being possible to obtain different lever arrangements by varying the locations of the movable pivot points (G) and the fixed fulcrum points (F) FIGS. 1 to 3).

Abstract: A container for tape-like material wound into a roll or stored in a cartridge, which container consists of a bottom and a top part, which are pivotable relative to one another for the purpose of opening and closing the container and can, when the container is open, be telescoped with the aid of guides on the container, one of the parts possessing means for accommodating the roll or cartridge.

Abstract: A magnetic tape cartridge and tape transport apparatus for use therewith, comprising a cartridge housing and a support which is movable inside the housing in all directions in the plane of the latter and on which hubs are rotatably mounted, between which hubs a magnetic tape can be wound to and fro, and further comprising spring elements which urge the support toward the front wall of the housing, which wall is provided with openings, the tape transport apparatus having means for receiving the cartridge housing, for which guide elements and actuatable locking means are provided, and a magnetic head and capstans which can pass through the openings in the front wall, the capstans being urged, by spring pressure, into contact with the rolls of magnetic tape.

Abstract: A tape cartridge assembly and tape transport apparatus for use therewith, comprising a cartridge housing which is provided internally with holding means for a hub bearing a roll of magnetic tape, the roll of tape being accessible from outside, receiving means for the cartridge housing and the hub being provided on the apparatus, by which means the peripheral surface of the roll of magnetic tape can be brought into contact with a drive member.

Abstract: A strip-like recording medium, in particular a magnetic tape, is provided with at least one self-threading leader which wraps smoothly onto the periphery of a cylindrical body, the recording medium and the leader being joined to one another, over their butt joint, by a piece of splicing tape. The leader and the piece of splicing tape have a predetermined length which approximately corresponds to the circumference of the cylindrical body. A reel comprises a hub and a roll of recording medium with a leader at the beginning and/or end of the medium, the leader being attached to the medium by a piece of splicing tape of said predetermined length.

Abstract: A positioning device for a magnetic head of a magnetic tape recorder, comprising a head carrier which can be moved transversely of the magnetic tape by means of a threaded spindle and a follower, the head carrier being provided with a signal transducer for controlling the drive motor for the threaded spindle.

Abstract: A process and apparatus for the treatment of the recording surface of magnetic recording media using consecutively arranged units for burnishing, cleaning and calendering the web of plastics film provided with a magnetic coating. The process and apparatus of the invention are particularly suitable for the manufacture of magnetic tapes for the recording and playback of video signals.

Abstract: This invention relates to a tape transport mechanism, particularly an improved contact winding tape transport system modified to protect it against tape transport disturbances occasioned by mechanical impacts. A shock-resisting coupling means is provided which is allocated to the reel carriers and which allows slow movements of the carriers toward and away from a drive capstan during normal working of the mechanism but prevents sudden movements of the carriers induced by mechanical shocks for instance. Piston/cylinder assemblies and magnetic rope/drum arrangements are disclosed as such shock-resisting means. The transport mechanism can be used advantageously in portable apparatus, preferably in magnetic tape recorders and especially in video cameras.

Abstract: A device for ejecting a loop of leader tape from a magnetic tape cassette, in which a portion of the leader tape is blown out of the cassette so as to form a loop, by means of a stream of air issuing from at least one nozzle which is connected to a source of pressurized air and projects into one of the apertures in the front wall of the cassette which is located in a holder.

Abstract: A winding shaft having a plurality of winding sleeves which are mounted next to one another on the winding shaft in such a way that they can rotate independently of one another, and which can be frictionally connected thereto, the frictional connections between the winding sleeves and the winding shaft being independently adjustable, and the parts exposed to friction being slow-wearing and the device being producible at low cost.

Abstract: Apparatus for the simultaneous loading of a plurality of otherwise finished magnetic tape cassettes, provided with leader tape, with magnetic tape, comprising a device for cutting a web of base film, provided with a magnetic coating, into a plurality of magnetic tapes; a downstream splicing station for joining the magnetic tapes to the leader tapes; a holder for the magnetic tape cassettes; and a device for winding the tapes into the cassettes.

Abstract: The invention relates to a process for the manufacture of a tape guide of large surface area for tape transport apparatus and to the tape guide manufactured thereby. In manufacturing the guide, a strip of material is elastically deformed, after which the deformation is maintained. One of the sides of the strip of material serves as guide surface for the magnetic tape. The strip can be located on the periphery of one or more bodies, if appropriate in a groove provided therein, and can be attached to the said bodies by suitable means, for example with the aid of integral hooks provided at the ends of the strip.The guide may be used for all types of tape transport apparatus. Since the guide of the invention offers extremely accurate tape guidance, it can be used particularly advantageously for magnetic tapes having a plurality of tracks and transported at a high speed, such as is usual, e.g., in video recording or in the recording of digital data.

Abstract: A magnetic tape cartridge consisting essentially of two hollow boxes which are connected together, by means of a closing spring, with their single open sides facing each other so as to be pivotable in one plane, a closing force being exerted upon said hollow boxes by said spring. This magnetic tape cartridge is suitable for all applications where cartridge halves must be frequently pivoted relative to one another, while being economical to manufacture.