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.,4 Scene From America's Projector Carbon Center.,
Lamp for simulating operating conditions
" With this unique lamp we keep millions of moviegoers happy with your screen lighting"
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To the best of our knowledge there are only two of these lamps in existence— and both are located in our Fostoria, Ohio, plant. This remarkable lamp is vital to quality screen George Mayer lighting because it enables our development department to simulate any operating conditions encountered by projectionists.
For example, we can alter the negative carbon angle from 0 to 90°, with respect to the positive carbon axis. The lamp will take any size negative, either copper -coated or black. Jaws are available to burn either copper-coated
-says GEORGE MAYER
National Carbon Sales Engineer
or black positive carbons. Rotational speeds range from 0 to 20 rpm, and feed rate can be varied from 1 to 120 inches per hour. Power variations range from 5 to 300 amps under normal conditions. Up to 800 amps have been carried for short periods of time.
Such advanced research equipment, quality production, and precision testing are only a part of the "National" projector carbon story. Since 1917, National Carbon has set the pace for outstanding technical service . . . through Sales Engineers equipped with today's most modern test devices for assuring optimum lighting efficiency.
Contact
Mr. National Carbon
UNION CARBIDE
"National" and "Union Carbide" are registered trade-marks for products of
NATIONAL CARBON COMPANY
Division of Union Carbide Corporation • 270 Park Avenue • New York 17, N. Y. In Canada: Union Carbide Canada Limited, Toronto