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December 29, 1923
MOVING PICTURE WORLD
HI
r / f
Ward Leonard VITROHM Dimmer plates on switchboard controlling Ward Leonard Reactance Dimmers, Grauman's Metropolitan Theatre, Los Angeles*
The largest theatre dimmer
? installation in the world
Continuous duty
The foundation of all WARD LEONARD Theatre Dimmers is a substantial iron plate to one side of which a layer of vitreous enamel is applied. In this the resistor is imbedded. The resistor, enclosed in this glass-hard, nonporous enamel, is impervious to moisture and gases. It completely and permanently protects the resistance from corrosion or oxidation, but dissipates heat with maximum efficiency. It is to this unique construction, more than any other factor, that WARD LEONARD Theatre Dimmers owe their ability to render superior service under continuous duty.
TO the theatre-going public the new Grauman's Metropolitan Theatre, Los Angeles, is sensational because of its size and magnificance and the beauty of its wonderful lighting effects. More electric energy is required to light the stage and auditorium of this theatre than is used by any other in the world. Naturally, the largest theatre dimmer installation in the world was needed to control this great
amount of energy — enough to light 6,000 sixty-watt lamps. And equally naturally, WARD LEONARD VITROHM DIMMER equipment was chosen — because Ward Leonard Dimmers eliminate fire risk, are designed for continuous duty, meet requirements with apparatus of minimum weight and bulk, are absolutely reliable, easy to operate, extremely durable, and economical in upkeep.
Write on your Company letterhead, for a copy of our book, Theatre Lighting, Past and Present.
Ward Leonard/itectric Company
'.Mount
37-41 South Street 1 Mount Vernon, N. Y.
Atlanta— G. P. Atkinson New Orleans— Electron Eng. Co., Inc. Baltimore— J. E. Perkins Philadelphia — W. M. Tompkins Boston— W. W. Gaskill Buffalo— W. G. Merowit San Francisco — Elec. Material Co.
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Detroit-C. E Wise St. Louis— G. W. Pieksen Cleveland— W. P. A moos Co. DallasW. A. Gibson
Chicago— Westburg Eng. Co. Pittsburgh— W. A. Bittner Co. Montreal— W. D. Bishop London, Eng.— W. Geipel & Co.
6720-15