发明名称 MAGAZINE-TYPE SLIDE PROJECTOR
摘要 A slide projector of the type having a removable magazine supporting a series of slides on an endless carrier for movement one by one into a projection position at one open end of the magazine. The latter has positioning elements coacting with elements of the projector case to align the magazine accurately relative to the optical system as an incident to insertion of the magazine in a recess in the projector, and a cooling system is included with a squirrel cage fan drawing air through the area of the illuminating lamp, through the lens area, and directly through the projection gate to cool the slide therein. An indexing drive mechanism is controlled electrically for either semiautomatic or timed automatic operation, and a scanner wheel is provided for fully manual operation, the scanner wheel having a movable cover controlling elements of the electrical control circuit. In both semiautomatic and automatic operation, the lamp is controlled to fade out between slides, and a signal device indicates completion of the full series of slides. The slide carrier and the clips thereon are also of novel construction for more effective operation and ease of manufacture.
申请公布号 US3632200(A) 申请公布日期 1972.01.04
申请号 USD3632200 申请日期 1969.10.13
申请人 GERALD J. FREY 发明人 GERALD J. FREY
分类号 G03B23/12;(IPC1-7):G03B21/28;G09F11/26;G09F11/32 主分类号 G03B23/12
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