Optics: motion pictures – Removable film strip magazine type
Patent
1974-01-23
1977-01-18
Hix, L. T.
Optics: motion pictures
Removable film strip magazine type
352104, 352202, 353 71, G03B 2110
Patent
active
040036448
ABSTRACT:
A projector and/or viewer (monitor) for motion-picture films continuously unwinding and winding on a spool within a magazine, characterized by comprising: a casing or case having a translucent wall operating as a screen and on another wall an opening for inserting and removing the magazine; a frame internally of said case defining a housing which at one end thereof communicates with the opening in said case and intended for the passage of the magazine, while another end thereof has a slit or opening for exposing the frames of the film moving in front of it and an optical projection system, said frame carrying: a light source mounted sidewise of the magazine housing for illuminating through a reflecting means the film frames; an electrical motor controlling a rotating shutter disc, having on one face a U-shaped cam for operating the claw for drawing the film in front of the exposition slit or opening, and by means of mechanical drives also controlling the pin of the film spool contained in the magazine and fans for cooling the elements heated by the light source, said case also carrying a second reflecting means which is movably retractably mounted against an opening provided on the case wall in front of said optical system, this opening serving for projection on a separate external screen, when said second reflecting means is displaced.
REFERENCES:
patent: 2135500 (1938-11-01), Foster
patent: 3387535 (1968-06-01), Bennett
patent: 3391979 (1968-07-01), Lessler
patent: 3582195 (1971-06-01), Pignone
patent: 3610747 (1971-10-01), Bickel
patent: 3694065 (1972-09-01), Roth
patent: 3739069 (1973-06-01), Sandmeir
patent: 3771862 (1973-11-01), Land
patent: 3787114 (1974-01-01), Catalano et al.
patent: 3807847 (1974-04-01), Okano
Hix L. T,.
Lamy S.r.l.
Mathews Alan
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