Moving Picture Age (1920) . 28 Excelsior Illustrating Co 33 Standard Slide Corporation 34 North American Slide Co 36 Riley Optical Instrument Co 36 MISCELLANEOUS Green & Co 44 Subscribers please notice that change of address must REACH US by the 18th of the month preceding date of issue. Moving Picture Age (Reel and Slide Magazine) is published the first day of each month by Class Publica-tions, Inc., at 418 S. Market street, Chicago, 111. Phone Wabash 912. Subscription price: 15 cents percopy, $ per year, postpaid, in the United States and possessions; Canada, $ EDWARD F. HAMM, Presi
Moving Picture Age (1920) . 28 Excelsior Illustrating Co 33 Standard Slide Corporation 34 North American Slide Co 36 Riley Optical Instrument Co 36 MISCELLANEOUS Green & Co 44 Subscribers please notice that change of address must REACH US by the 18th of the month preceding date of issue. Moving Picture Age (Reel and Slide Magazine) is published the first day of each month by Class Publica-tions, Inc., at 418 S. Market street, Chicago, 111. Phone Wabash 912. Subscription price: 15 cents percopy, $ per year, postpaid, in the United States and possessions; Canada, $ EDWARD F. HAMM, President WILLIAM EASTMAN, Vice-President WILLIAM C. TYLER, Secretary and Treasurer LYNE S. METCALFEGeneral Manager Eastern Office: Room 308, 51 East 42nd St., New York Phone Vanderbilt 5462 VICTOR W. SEBASTIANEastern Representative HOMER E. ROBERTSON, Business Manager JOHN P. BRAND, Managing Editor (Copyright, 1920, hy Class Publications, Inc.) February. 1920 MOVING PICTURE AGE Jnirodi ucin y -the ntwQ,^ Projection MacKine. The Heart of ^the Rotary An improvement in mo-tion picture mechanism isfound in the new Rotarypresser movement, whichreplaces the present - daygeneva or star-and-camdevice. The Rotary is so orig-inal in design, so simple inconstruction and so suc-cessful in operation, thatcomparisons are interestingand enlightening. For ex-ample, the usual star-and-cam has TEN wearing sur-faces, in direct comparisonwith the TWO simple bear-ings of the presser move-ment. In the Rotary pressermechanism, the film istreated as a continuous rib-bon. Sprockets and sprock-et-holes are disregarded;the film is gently PUSHEDdown—picture by picture—by the CONTINUOUS ap-plication of the revolvingpresser to the entire widthof the film.
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Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectmotionp, bookyear1920
