Robert Boschgmbh

U.S. Philips Corporation

Bts Broadcast Television Systems Gmbh

Dieter Gause

Theo Wolf

Werner Maack

Peter Gunschmann

Rainer Kaus

Reinhard Weber

Wolfgang Fell

Hans-D Schneider

Heinrich Rossmann

A magnetic-tape-cassette apparatus includes a tape-loading device having supports (17, 18) which are longitudinally movable on guide members (19, 20) and are caused to perform oppositely directed synchronous movements by means of two traction-means drives (29 to 34) for the purpose of threading a magnetic tape (4). The two traction-means drives (29 to 34) are mechanically coupled by a third traction-means drive (35). Toothed belts (31, 34, 35) used as traction means are driven by a torque generated by an electric motor (36).

A magnetic-tape-cassette apparatus having improved tape-guide device

A tape drive mechanism for magnetic tape apparatus for tapes housed in cassettes has a pressure roller (29) at one end of a press-on lever (35) which is pivotally held on a drive shaft bearing (31) of a drive shaft (30) so that it can be inclined in a vertical plane. Another end of the press-on lever (35) has the guide cavity (37) in which a grade element (38) is held. The guide element is affixed at the end of a bascule lever (40) which is pivoted also on the supporting bearing (31) of the drive shaft (30). The bascule lever (40) is controlled by the progress of a tape threading operation of a tape loading device, the control being in the axial direction of the drive shaft (30).

Cassette tape capstan drive with rocker above capstan for swinging

A mechanism for receiving and handling magnetic tape for the purpose of information recording and retrieval, especially from magnetic tape stored in two-reel cassettes. The mechanism includes movable tape handling and tape guide elements which engage the tape in a threading process without the application of tangential stresses and place it in a predetermined path. The tape is handled by the drive capstan of the apparatus which, in the threading operation and the tape removal operation, is temporarily engaged by mechanical linkages that are powered by the rotation of an external carrying handle.

Apparatus for recording and reproducing information on magnetic tape

In order to provide protection to magnetic tape during storage and use, a tape holding cassette according to the invention has a closable housing within which there is disposed a movable entity consisting of a separating wall that can glide in suitable grooves within the housing. Mounted on opposite surfaces of the separating wall are tape reel holding and rotating hubs and further mounted on the separating wall are tape guiding mechanisms that guide the tape from one reel across the edge of the separating wall to the second tape reel, thereby defining a path in which the tape travels obliquely with respect to the plane of the housing. The tape reel hubs have gears that can engage corresponding gears of the tape recorder and they include internal locking mechanisms that automatically prevent relative rotation of the tape reels with respect to one another and with respect to the cassette during transport. The tape lock mechanism is disengaged in use by elements which are integral with the tape recorder apparatus.

Tape cassette

The apparatus has a pair of guide rollers which are located to guide the tape in a direct, straight-line path between the guide rollers and, additionally, further guide rollers which are movable to engage behind the tape in the straight-line path and, when moved, wrap the tape around a record/reproduce head. The additional guide roller is movable in an essentially straight-line path, the roller, when in the position in which the tape is placed around the record/reproduce head, being the one furthest away from the cassette, when the cassette is inserted in the apparatus. Essentially simultaneously with movement of the aforementioned guide roller, other guide rollers are likewise moved to engage the tape with a drive capstan, and to additionally positively place the tape around a record/reproduce cylinder for spiral passage thereover. The other rollers operate on curved paths, the arrangement providing for timed interrelation of the stationary and movable guide elements in their respective paths in space.

Growing community of inventors

Weiterstadt, Germany

Dieter Gause