Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . as the arrangementof the parts employed for moving the film. Thetoothed wheel seen in Fig. 113 is in connection withthe sprocket - wheel, and is driven by the // worm below. Werethis worm fixed itwould rotate the wheelcontinuously, but it ismounted on a slidingaxle driven backwardsand forwards by astud bearing in a cam-groove. Thus at one timethe wheel remains stationary, the worm, so to speak,screwing itself along on the wheel; but when the axletravels back, not o
Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . as the arrangementof the parts employed for moving the film. Thetoothed wheel seen in Fig. 113 is in connection withthe sprocket - wheel, and is driven by the // worm below. Werethis worm fixed itwould rotate the wheelcontinuously, but it ismounted on a slidingaxle driven backwardsand forwards by astud bearing in a cam-groove. Thus at one timethe wheel remains stationary, the worm, so to speak,screwing itself along on the wheel; but when the axletravels back, not only does the worm act in its propermanner but in addition drags the wheel round. HerrSkladanowsky at first used two machines givingalternate projection, but subsequently employed onemachine only, having a special form of shutter. Hispictures measured 4 by 5 centimetres, and thereforegave a considerably larger view on the screen thanthose obtained with the first French machines. The last apparatus to be described in this chapterstands in a manner on the borderland of Jenkins undoubtedly constructed his Phantoscope. Fig, 113. 108 LIVING PICTURES. Lantern so far back as 1894, though no description ofits working appears to have been published until it was exhibited towards the end of 1895 both atthe Atalanta International Exposition and the FranklinInstitute. Shortly after this, on March 17th, 1896, theinstrument was, according to Mr. Jenkins own account,surreptitiously removed from his house at Washington,and he maintains that a similar machine was sub-sequently put on the market under the name of theEdison Vitascope. There may very well have been 1
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectmotionpictures
