Boxoffice-July.01/1950

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Utility Lamp;
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Strong
| Mighty
THE STRONGEST MATERIAL
Steel, of the correct composition and
treatment, is the strongest, commonly
known material. It is not a metal
but an alloy of carbon, iron and other
metals. Piano wire, bridge wire, or
"plow steel" cable wires, made of
high carbon steel, with the inherent
strength further enhanced by drastic
cold drawing, ordinarily operate in
common use on engineering structures
at very high stresses. The main coble
of a suspension bridge is designed for
the heaviest load per square inch of
any engineering structure.
Theatre men are agreed that the Strong Mighty
"90" Is the peer of all projection arc lamps.
This 75 to 130 ampere reflector arc lamp, with
exclusive Lightronic Automatic Focus Control, at
90 amperes projects 21,000 lumens.
Outstanding features include: Forced air-cooled
feed mechanism. Low operating temperatures.
Bi-Metal Lightronic Tube controls both carbon
feed motors. Simple feed rate adjustment. Big
16'/2-'ich reflector matches high speed fl.9 lens.
Air stream arc stabilization. Unit construction
permits instant removal of major components.
RuQoed burner mechanism. Complete combustion
of black soot. White deposit on reflector
prevented.
THE STRONG ELECTRIC CORPORATION
1 1 City Park Avenue
TOLEDO 2, OHIO
would like o demonstrotion of Ihe Strong Mighty "90" in my theoire,
without cost or obligotion.
"90'*;
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Strong Rectifiers;
Mogul Lamp;
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Please send free literature on the | I
Arc Spot lamps;
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Strong Reflectors.
Nome
Theatre
Street
City and State
28 The MODERN THEATRE SECTION