Projector control mechanism

Details Projector control mechanism Projector control mechanism

1975-10-22

1977-02-22

Stephan, Steven L.

Optics: image projectors

Slide transfer mechanism

74384, 74405, 353106, G03B 2302, F16H 3500, F16H 5700

Patent

active

040089533

ABSTRACT:
A control mechanism for controlling the reciprocating movement of a pusher for a picture-holder in a transparency projector of the type in which a rotating shaft serves to reciprocate the pusher during the course of a 360.degree. rotation of the shaft. A continuously rotating electric motor drives the shaft through two gear stages and a coupling member effects the coupling of the motor to the shaft first, through the first stage and then through the second stage.

REFERENCES:
patent: 3220735 (1965-11-01), Beugin

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