Moving Picture World (Nov-Dec 1923)

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November 3, 1923 MOVING PICTURE WORLD 169 Portable Projector and Featherweight Gasoline Electric Light Plant. The lightest outfit in the world giving professional projection. Total weight, 125 lbs. Owners should always purchase renewal and repair parts direct from the manufacturer only, because a wrong bearing or brush might do irreparable damage. The best is always the least expensive in the long run and saves much trouble. Hallberg Featherweight 200 Watt Electric Plant. Total weight, 110 lbs. Each Item of THE HALLBERG LINE EQUIPMENT Automatic Arc Controller. Fits all styles and makes of lamphouses. Feeds carbons automatically. A. C. Economizers, all •voltages and cycles. Saves 2/3 on electric bills. is a specialized device, designed and built by the foremost projection engineer of the world. And is designed with just one particular purpose in view — the improvement of projection. This equipment, formerly handled exclusively by the U. T. E., may now be purchased from any reliable supply house or direct from the manufacturer. J. H. HALLBERG Mazda Lamp Regulator A. C. or D. C. Save 70% line current at 110 V. over rheostats. 445 RIVERSIDE DRIVE NEW YORK CITY Electric Speed Indicator and Recorder. Fits all projectors. Synchronizes the picture with the MOTION PICTURE Motor Generators for multiple, or “2-in-Series” Arcs. All sizes, voltages, phases and cycles. Gasoline and Kerosene Electric Light Plants — 1 to 30 KW. Notice /