Record player for a stationary record disc

Details Record player for a stationary record disc Record player for a stationary record disc

1978-09-14

1980-11-04

Moffitt, James W.

Undertaking

274 9C, 1791004R, 1791001S, 1791001R, G11B 340

Patent

active

042322022

ABSTRACT:
A record player for use with a stationary conventional record disc having a sprial sound groove with signals recorded therein includes a movable body which is placed on the record disc, a drive assembly for causing the movable body to travel over the record disc, a pick-up or cartridge pivotally mounted at the underside of the movable body for engaging the sound groove and reproducing the signals recorded therein while tracking the spiral sound groove as the movable body travels on the record disc, and an arrangement for controlling the travel on the movable body relative to the record disc in response to pivotal movement of the pick-up.

REFERENCES:
patent: 2851539 (1958-09-01), Brown
patent: 2862716 (1958-12-01), Marks
patent: 3181870 (1965-05-01), Lasswell
patent: 3360269 (1967-12-01), Dunn
patent: 3362716 (1968-01-01), Dunn
patent: 3420967 (1969-01-01), Goldmark
patent: 3482841 (1969-12-01), Doring
"Lirpa, `VDRS`, Vehicular Disc Reproducton", by I. Lirpa, Audio, Apr. 1978, pp. 73-80.

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