Dynamic magnetic information storage or retrieval – Record copying
Patent
1982-09-27
1984-05-08
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Record copying
242200, 360 92, G11B 586, G11B 1518
Patent
active
044478364
ABSTRACT:
A type cassette copier on which; pairs of aligned "floating" head and pinch roller arms are pivotally mounted within a housing adjacent pairs of aligned cassette receiving recesses and are simultaneously pivotable by a resilient connection to control lever arm; the control lever arm is operable through rewind, copy control and off positions; the head arms are operably connected to a drive mechanism for selectively driving rotatable spindles disposed in each cassette receiving compartment; the drive mechanism is adapted to be pivoted by the head arms for engagement of one magnetic clutch or another disposed on adjacent paired spindles, with one engaging position for rewind, and another for copying; a lever escapement cam, engaged by the free end of the control lever arm holds the lever arm in rewind or copy positions during each operation; a pair of electric motors drive the spindles and adjacent capstans through suitable belt drive means disposed in series with each motor; the motors are electrically connected in series with a source of current through means including a suitable servo system requiring only one velocity sensing means; a reciprocating head arm actuator is electrically operable between rewind and copy modes of each operation; tapered plastic fasteners are engaged in tapered colleted holes to removably mount various elements in place; and the head arms, motors and reading and recording heads are cyclable in sequence to rewind, record, rewind and stop.
REFERENCES:
patent: 3620476 (1971-11-01), Cervantes
patent: 3677554 (1972-07-01), Smith et al.
patent: 3744803 (1973-07-01), Bazzy
patent: 3751042 (1973-08-01), Platt
patent: 3850386 (1974-11-01), Zimmermann
patent: 4222083 (1980-09-01), Tronzano
Flygstad Dean W.
Wehrmacher Bill H.
Hecker Stuart N.
Telex Communications, Inc.
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