Automatic record player

Details Automatic record player Automatic record player

1980-12-01

1982-08-24

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369225, G11B 1706, G11B 1906

Patent

active

043464653

ABSTRACT:
An extremely simple record changer mechanism is provided wherein only two members interconnect the tone arm subassembly with the main cycling gear in the spindle area of the changer. One of these members is employed to lift and lower the tone arm and the other member is used for the dual purpose of moving the tone arm horizontally during the record changing cycle and also acts as a velocity trip actuating member during the playing cycle. Both members are designed to avoid damage to the mechanism if the tone arm is moved or restrained during the record changing cycle.
The control knob normally used for ON-OFF-REJECT functions, is provided with a 4th position in which the record changer repeatedly plays a record on the turntable without shutting off the machine. This REPEAT PLAY position is reached by first moving the control knob to the ON or REJECT position and then moving it back to a position between the ON and OFF positions. When so moved, a detent force is provided for the control knob and an audible click is produced to inform the operator that the REPEAT PLAY position has been reached.

REFERENCES:
patent: 2366858 (1945-01-01), Knox et al.
patent: 3218078 (1965-11-01), Freier

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