Boxoffice-October.01.1955

PROJECTOR MAINTENANCE
Continuerf irom preceding page
longer wear from your projector, and lower
service cost.s in the years to come.
In previous articles we presented data on
cleaning mechanisms, using either Stoddard
solvent or Icerosene. Use a stiff-bristle
brush for scrubbing, carefully rinsing the
parts with clean fluid and drying them
with a clean, lintless cloth thoroughly.
This should be done at least every 12
months. Regardless of how tightly sealed
in parts may be, in the course of time, there
will be some accumulation of foreign material
that should be thoroughly cleaned off.
This will mean longer wear and less replacement
of many parts. Use a clean pan
and brush for cleaning any of the units.
Then there is the daily cleaning of the
projector and mechanism that should not
be neglected. Spend at least 30 minute.s
each day before starting the show, cleaning
that brings
'em back!
/PERFECT-PICTURE
Bausch & Lomb
Super Cinephor
Proiection Lenses
PAIR
^~«l.
The Century C and CC intermittent movement. This
movement employs the standard Geneva type of
movement— star and cam, etc. It has many very
special features which are explained in the article.
Use only Century lubricant for best results. Sprocket
and other parts may easily be installed by the
projection room personnel, but when the unit needs
rebuilding it should be sent to an authorized
dealer who has special tools and machinery and
knowledge to do a first class job. A loaner may
be obtained while the job is being done. It pays
to keep a spare movement on hand for emergency.
SEE THE BIG DIFFERENCE!
. . . FREE DEMONSTRATION!
Writo today for domonHtralion.
and lor iniormalivo Catalogs
E-123 and £141. Bausch d Lomb
Optical Co., 72046 St. Paul St.,
RoehoBtsr 2. N. Y. (In Canada.
Gonoral Theaira Supply,
Toronto)
It's how well they sec that determines
how much they'll enjoy the movies you
show . . . how often they'll come back to
your theatre. Insure repeat patronage
with today's clearest, brightest full-screen
\ ifws. Don't take chances. Insist on the
B&L Perfect-Picture Pair. Complete
line for all projectors . . . for theatres and
drive-ins . . . for Wide Screen,
CinemaScope, SuperScope.
the sprockets, interior and exterior of
mechanism, the gate and shoes, and the
lenses.
Removing and replacing the gate is a very
simple procedure, first open the gate by
turning the knob to the right, next loosenj
the holding screw (Fig. 1, No. 2). Youl
can now pull the gate straight toward the
film trap. This will disengage the two
supporting studs which hold the gate in
the lens tube. The gate can now be in- j
'<
spected and cleaned and reinstalled.
In order to secure a rock-steady picture
and eliminate any sidesway. the gate pad
is long and heavy and is designed to give
uniform pressure against the film over its
entire length. The design assures that
exactly equal pressure is applied to both
sides of the film; moreover, the combination
of the tension springs and pad are
designed so there is a minimum of disturbance
of the pad as splices go through
the mechanism. Any accumulation of
emulsion or dirt on pad should be cleaned
Continued on page 2S
26
The MODERN THEATRE SECnON