Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . Fl! ;4- are better shown inFig- 155, which isan elevation of theopposite side to thatseen in the pre-ceding figure. It ex-hibits the star-wheelattached to thesprocket-roller lockedbetween the twostraight portions ofthe driving-worm. Fic. 155. 144 LIVING PIC TUBES. mareys latest chronophotographe. ^?^? The improvements in this machine will be betterunderstood after reference to the earlier form shownin Fig. 74. It will be remembered that the film wasfixed by a cl
Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . Fl! ;4- are better shown inFig- 155, which isan elevation of theopposite side to thatseen in the pre-ceding figure. It ex-hibits the star-wheelattached to thesprocket-roller lockedbetween the twostraight portions ofthe driving-worm. Fic. 155. 144 LIVING PIC TUBES. mareys latest chronophotographe. ^?^? The improvements in this machine will be betterunderstood after reference to the earlier form shownin Fig. 74. It will be remembered that the film wasfixed by a clamp, the taking-up spool continuing torevolve. In order to provide film to feed this con-tinual action, a spring-blade was interposed, andyielded in order to shorten the path of the film. Whenthe clamp was taken off, the spring returned to itsformer position, and in so doing drew forward morefilm. This arrangement involved the spring making a certain number ofvibrations per second,but the spring itself,by reason of its length,had a proper vibration,the rate of which veryseldom coincided withthe nun:iber of photo-graphs secur
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectmotionpictures
