TO LORD

A
Reflector
to ^spefld,
Tufcold
Reflectors
Projection and Sound—
Continued from page 10
less in its medium position, that is to say,
when it swings out toward either side to the
same degree.
Check the loop former while the film
runs. Holding the small knurled part reduces
the loop; holding the big knurled part enlarges
the loop above the Maltese cross intermittent
sprocket.
In order to exchange the plastic guide
rollers, remove the locking discs from the
shafts and take off the rollers. Clean the
rollers which do not run smoothly and put
lubrication on the roller shafts before
a little
replacing them. Keep the rollers free of dust
and dirt.
Takeup Sprocket
The takeup sprocket is mounted onto the
shaft of the takeup bearing together with
loop former. To remove the takeup sprocket
together with loop former, lift the lay-on
roller, turning the knurled screw of the loop
former until the hexagon socket screw becomes
visible behind a hole in the sprocket.
Then remove the screw entirely and take off
the loop former together with the takeup
sprocket. When replacing these parts, watch
that the driving pin of the loop former engages
with the corresponding bore in the
sprocket.
To remove the intermittent sprocket,
turn the inching wheel until the intermittent
sprocket comes to a standstill and then
loosen the conical screw. Give the inching
wheel another quarter-turn to prevent any
damage to the Maltese cross. This should be
done even after the intermittent sprocket
has come to a standstill. As an additional
precautionary safety move to prevent damage
to the Maltese cross, hold this sprocket
while loosening the screw. When replacing
the intermittent sprocket, watch that the
fixing pin on the intermittent shaft engages
with the groove in the intermittent sprocket.
Then, push the sprocket inward and up to
the stop,
tightening the retaining screw very
carefully and without too much force.
To adjust the upper roller holder on the
projector head, loosen the clamping screw
of the roller shaft to a point where it
cannot be moved any more. Then, turn the
shaft laterally so that the film does not
buckle on either side of the roller holder.
To exchange the plastic or velvet bands
on the aperture holder, first open the film
gate, loosen the socket screw and remove
the aperture holder. Release the tension on
the band by loosening the knurled screw.
Loosen the hexagon socket screw of the
clamping plate at the bottom of the aperture
holder. Then, remove the bottom end of
the bands and then the top ends.
When installing new bands, first fit them
into the top clamping lever. Clamp them
tightly by means of the clamping plate after
applying some pre-tension by hand. After
installing the new bands, make sure that the
respective tensioning springs fit into the
respective grooves in the clamping bolt
Then watch that the clamping bolt is prop
erly seated in the clamping levers.
When the film runs, tighten the bands to
a point where perfect picture steadiness with
a minimum of film running noise is guaran
teed. If, during projection, it should become
obvious that the tensioning bands cannot be
sufficiently tightened, exchange the tensioning
spring in the aperture holder. Excess
tension may damage the perforations oi
1
even cause a film break. On the other hand
insufficient tension will cause unsatisfactory
picture steadiness. It is important, therefore
to make adjustments as instructed. Then
should be just enough tension to hold thi
picture steady on the screen.
Removing the aperture holder is accomp
lished by first removing the film gate an<
then loosening the hexagon socket screv
dler
Continued on page U
Aperture and lens heat reduced. First
surface Dichroic Reflectors with two
year coating guarantee, project more
light because it is reflected from the
front surface, without passing through
the glass.
Strong also produces silvered reflectors
for all makes of lamps and is
able to supply reflectors for many
discontinued lamp models.
•
STRONG ELECTRIC
Phone (419) 248-3741
11 City Park Avenue • Toledo, Ohio 43697
A SUBSIDIARY OF CANRAD-HAHOVIA
SNAP-LOK & SLOTTED LETTERS
SIZES FROM 4" TO 31"
a^
FLAT LETTERS (PRONTO)
SOLID STROKE
OR 3 DIMENSIONAL
SIZES FROM 3" TO 24"
in California call collect (213) 321-5641
14824 S. Main St., Gardena, Co 90248
(write for our free catalog today)
the:
SMHMU MINI
14
The MODERN THEATRE SECTIC
I