Document Type and Number:
Japanese Patent JPS5315361
Kind Code:
B1
Abstract:
The audio-visual device includes a slot for receiving an audio-visual unit consisting of a transparency disk and a record rotatably mounted from the disk. A mechanism serves TO index the tone arm for playing successive spaced messages on the record in response to movement of a manually operated arm which advances the transparency disk for viewing of successive transparencies. A reset mechanism is associated with the indexing mechanism for returning the tone arm to a starting position. A tripping mechanism cooperates with the reset mechanism to release the tone arm; this tripping mechanism is actuated by a projection on the transparency disk as the latter is moved to its starting position.
Application Number:
JP7114771A
Publication Date:
May 24, 1978
Filing Date:
September 13, 1971
Export Citation:
International Classes:
G03B23/10; G03B31/06; (IPC1-7): G03B31/00
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