Optics: image projectors – Film gate
Patent
1978-03-22
1979-10-02
Haroian, Harry N.
Optics: image projectors
Film gate
242 5521, 353DIG2, G03B 148
Patent
active
041696697
ABSTRACT:
A film winding device for slide projectors of a type using strip films comprising a film housing case capable of being removably fitted to a projector body, a film guide guiding a projected film toward the film housing case, a leading ring mounted rotatably on the end portion of the film guide and capable of leading in the projected film at the tip so as to come to the outside within the film housing case and a roller means arranged so as to be able to positively feed the projected film even in the end portion into the film housing case, whereby the film having finished being projected can be housed successively into the film housing case so as to be projectable without being rewound. In this slide projector, the film to be projected can be easily taken at the tip to the position of the film guide by pushing a button.
REFERENCES:
patent: 1827101 (1931-10-01), Patterson
patent: 1868252 (1932-07-01), Ponting et al.
patent: 2330709 (1943-09-01), Harper et al.
patent: 2812177 (1957-11-01), Kleerup
Endo Tadakazu
Matsumoto Masato
Nomura Susumu
Takahashi Kojiro
Haroian Harry N.
Shinano Kikaku Company Limited
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