U.S. Philips Corporation

Robertus J Verhoeven

Johannes M Hensing

Cornelis Ouwerkerk

Cornelis M Beijersbergen Van Henegouwen

Cornelius Antonius Hezemans

Karel G Koken

Pieter D Schuitmaker

Johannes T Van De Veerdonk

Petrus J Blankers

Waltherus C Bierhoff

Daniel Ong

Pieter A Schoneveld

Gerardus F Gasseling

Gerardus I Elders

Leo G Metzemaekers

An apparatus having a frame (1) carrying a turntable (3) for supporting the information carrier, which turntable is rotatable about an axis of rotation (3A), a slide (9), which is movable between two end positions, with a scanning unit, guide spindles (5, 7) and a linear motor unit (17, 19) for the slide, and an electrically energizable clamping unit (21). In the non-energized condition the clamping unit clamps the slide in any arbitrary stationary position of the slide along its path and in the energized condition it does not clamp the slide. During operation of the device a control unit at least substantially simultaneously turns on a first energizing current to the motor drive unit and a second energizing current to the clamping unit at the beginning of a displacement of the slide and at least substantially simultaneously turns off the first energizing current and the second energizing current at the end of the displacement.

Looking slide drive for a disc scanner

A device for the recording and reproduction of signals on a cassette for a medium comprising a sliding cover which in the device can be moved between a closed position and an open position. The device has a receiving space into which the cassette can be inserted, after which by means of a pivotal lever the sliding cover is opened upon further insertion of the cassette, in that the lever moves from the first position to the second position and thereby moves the sliding cover from a closed position to an open position. The lever is arranged on a movable lever support which can be moved between a starting position and an end position. The sliding cover is opened by snap action.

Method and device for snap opening of a cover of a cassette

A disc cassette (1) has an outer case (4) with a front opening which is closed by a shutter (8) and latched in the case by a movable latching device. The apparatus has a device to release the shutter of an inserted disc cassette and with the aid of a withdrawal mechanism withdraws the shutter from the case when the case is withdrawn from the apparatus. The movable latching device for latching the shutter (8) in the case (4) comprises a movable part (14) of the case, and the release device of the apparatus comprises an insertion element (18A, 18B) which penetrates between the shutter and the case when the loaded disc cassette is inserted, thereby moving the movable part of the case to a free position in which the shutter is no longer latched in the case.

Combination disc cassette and apparatus for removing disc therefrom

A printer (1) having a guide (13,15,16) for an insertable cassette (17), which is provided with a data strip (175) displaceable along a printing head (19). In certain arrangements the cassette may also include a transfer strip (177), which could include colored portions. The cassette (17) has an entrance window (167) for a transport roller (65) pivotable in the printer (1) by translation of the cassette (17). During printing, the data strip (175) and the transfer strip (177), if any, are clamped between the printing head (19) on a first cassette side and the transport roller (65) pivoted from a second cassette side located opposite the first cassette side into the entrance window (167). Separate gear wheel trains both driven by the same motor transport the two strips when both are provided.

Printer having a guide for an insertable cassette which can hold data

A magnetic tape cassette having two parallel rectangular major walls, and an anti-erase device adjacent a corner of the housing. A slotted recess in the edge between a first major wall and the rear housing wall receives a serrated slide whose outer surface is disposed within tangent planes to the first major wall and the rear wall. The slide is integral with an anti-erase member formed of a material having a color contrasting with that of the cassette housing, slidable parallel to the cassette rear wall. In a first position an opening in the member is aligned with an opening in the rear wall, and in a second position a portion of the member is exposed to view through the rear wall opening. In one of the two positions a sensing aperture in the major wall is closed by a control element on the anti-erase member.

Magnetic-tape cassette with improved anti-erase arrangement

A changer pin for a record changer suitable for completely independently supporting a number of gramophone records with a small central opening, which are stacked on the changer pin, above the turntable, and for changing said records. The pin comprises a control slide which controls the coordinated movements of an integral unit forming three record supports, another integral unit forming three record lifters and a third unit forming three record hold-down devices for holding down the lowermost record while the remainder of the stack of records is lifted.

Growing community of inventors

Eindhoven, Netherlands

Robertus J Verhoeven