Boxoffice-May.03.1952

The
i^onara tu la tionS
'9
to HARRY STRONG and
STRONG ELECTRIC CORPORATION
for Development of the
Strong "Trouper"
MEMOIRS OF PROGRESS
Continued from preceding page
inches shorter and other dimensions reduced
in proportion.
Sales of the low intensity reflector arc
lamp in 1928 indicated that a saturation
point was approaching. The most promisinu
marlcet then appeared to be the larger
theatres where the hi^'h intensity condenser-type
lamp was being used. This
lamp was then the only type producing suf-
and Thirty Years of Service to
the Motion Picture Industry.
MURCH ELECTRIC
FRANKLIN, MAINE
CO.
Manufacturers of Precision Optical Products
May the Next
30 YEARS
be as Successful . . and may
we continue to have a part in it.
BURLINGTON INSTRUMENT CO.
This is the first projection arc lamp developed by
Harry Strong. It was tried out and proved effective
in 1925.
ficient light for large screens but was very
expensive to operate.
We reasoned that since the reflector
principle had so increased the efficiency
of the low intensity lamp, the same principle
should apply to high intensity. We
immediately started work on the design of a
Burlington,
Iowa
Manufacturers of
Electrical Indicating Instruments
Generator Voltage Regulators
Automatic Synchronizers
Proportionate Load Controls
Best Wishes to Strong Electric
You Keep Lighting the Screens
and
We'll Keep Bringing in the Patrons!
WAGNER SIGN SERVICE. INC.
Cfiangeable Copy Attraction Panels and Letters
218 S. Hoyne Avenue • Chicago 12, Illinois
The Strong Standard low intensity reflector arc
lamp was attractively designed as well as efficient.
high intensity lamp, employing this reflector
principle, with the result that we
projected as much light at 60 amperes as
had been possible with the 120 ampere high
intensity condenser-type lamp. It was
called the Hy-Lo because it gave a high
Continued on page 30
28 The MODERN THEATRE SECTION