Magic; stage illusions and scientific diversions, including trick photography (1897)
Hopkins, Albert A. (Albert Allis), 1869-1939, Evans, Henry Ridgely, b. 1861 · London : Low · leaf 527
t, as an incandescent lamp or a Welsbach incandes-cent gaslight, thence over the toothed sprocket driving wheel to the windingwheels, the exposed film being ■wound first. This Avill be better understoodby reference to our detailed diagram of the mechanism. It will be noticedthat the reels are… … m l,l|||n\||ilIi;iHf« THE PROJECTION OF MOVING PICTURES. 513 tions in the edges of the fihn are of a siDecial square shape, and give the squaresprocket wheel of the propelling pulley a better tension on the film. The teethpass through the perforations of both films, causing both to move at…
Magic tricks
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