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Strong Electric Continues the work of Projection Pioneer Harry H. Strong
STILL MAINTAINED in the Toledo, Ohio headquarters of the StrongElectric Corporation is the office of Harry II. Strong. The door is open, and the visitor may step inside for a moment of thoughtful reflection. Those who knew Harry Strong personally will miss the extended hand of greeting and the friendly voice; hut there is certainly no absence of his continuing identification with progress in projection technology. The trail-blazing work to which he devoted his outstanding engineering talents from the days of the silent movies until his death in 1956 continues without interruption under the dire c t i o n of Arthur J. Hatch, president of the corporation founded by Harry Strong a third of a century ago.
Harry Strong was truly the projectionist's friend. As an equipment maintenance engineer in the early nineteen-twenties, he became intimately acquainted with the projectionist's problems. In those days it was necessary to feed the carbons of the arc-lamp with one hand while cranking the projector with the
by R. A. MITCHELL
Technical Editor International Projectionist
Harry H. Strong
other! And the lamp had to be kept burning for the slides which were usually screened between reels.
This was an intolerable state of affairs ; and Harry Strong set about to devise an effective remedy.
Strong's motor-driven automatic arc control cre1 ated a sensation. By at: taching it to the feed -mechanism of a verticalarc lamphouse, it maintained the correct arc gap and relieved the projectionist of the most irksome of his numerous duties. But this was only the beginning. From that day on, the creative engineering of Harry Strong not only paralleled the development of the growing motion-picture art, but was often a few jumps ahead of it!
The first Strong projection lamps were built in 1925. Inspired by a small German burner mechanism which made it possible to convert a 50-ampere vertical-arc condenser lamp into a crude coaxial-carbon reflector lamp giving the same amount of light at only 15 amperes, Harry Strong improved upon the idea and produced a pair
. . . Third of a Century of LIGHT
International Projectionist
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