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 513
ILLUSIONS AND SCIENTIFIC DIVERSIONS In projecting pictures of this kind it has been usual to employ slmttersoperating in unison with the movements of the picture ribbon. After a seriesof experiments it was found that the same effect of motion could be producedby causino- the ribbon itself to have… … THK KDISON VITASCOPE. muin shaft to which it is geared, a worm engaging a gear on the shaftwitli the main sprocket pulley, and draws the picture ribbon downward ata uniform speed. Back of this shaft maybe seen the mam shaft, intendedto rotate rapidly, on the end of which is a disk having a roller…
Magic tricks
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