U.S. Philips Corporation

Johannes F Hoefnagels

Henricus Marie Ruyten

Albert M Rijckaert

Arthur Robert Van Es

Johannes J Schoenmakers

Gerard Van Engelen

Theodorus H De Nier

A magnetic-tape player has a drive arrangement for winding a tape between two reel hubs. The drive arrangement can drive both reel hubs with different transmission ratios by a motor and four transmission devices. The drive arrangement is controlled entirely by a cam disc capable of counterclockwise rotation.

Apparatus with a drive arrangement of information carriers in the form

A tape recorder or player with automatic azimuth control, utilizing a single pieozoelectric element inside the head's magnetic shield. A bimorph has one end rigidly connected to the head and the other end rigidly connected to the head support, for pivoting the head about an axis in line with the head gap.

Magnetic head mounting mechanism for automatic azimuth control

An adjustable torsion-spring slipping clutch, especially useful for tape recorders, having first and second coaxial clutch sections which are rotatable about an axis of rotation. The second clutch section includes a sleeve which has a substantially circular cylindrical shape and is adjustable in diameter. A coaxially arranged cylindrical helical torsion spring is connected to one end to the first clutch section and its turns are wrapped around the sleeve, adjustment of sleeve diameter determining the torque to be transmitted between the clutch sections.

Adjustable torsion-spring slipping clutch

A cassette holder for Compact Cassettes, which is pivotable about a pivoting axis and intended for a vertical cassette recorder, is provided with stop means in order to avoid an incorrect position of the cassette, the openings in the front of the cassette, for the passage of the magnetic heads and the pressure roller, not being oriented towards the pivoting axis of the cassette holder but towards the insertion opening. In the cassette holder guide ridges are provided which co-operate with the cassette near its side walls and beside the locally thickened portion in the cassette, in such a way that during insertion the cassette is tilted from an oblique position to a straighter position, the top edge of the cassette holder butting against the locally thickened portion of the cassette in the case of an incorrectly inserted cassette.

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Eindhoven, Netherlands

Johannes F Hoefnagels