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L I G H T I N G SYSTEM
79
G e n e r a l D e s c r i p t i o n
S U P E R - S A F E
headlighting
is used
on
all
C a d i l l a c models.
T h e L a S a l l e lighting system is
of the conventional type used on previous Cadillac
and LaSalle cars.
T h e LaSalle headlamps are of
the fixed focus type and are alike, using (luted
lenses and 32-32 candle-power double
filament
bulbs.
T h e S U P E R - S A F E
lighting system
is used
exclusively by Cadillac and actually comprises
two independent
lighting systems, one for the
right-hand and one for the left-hand lamp.
The
lamps are purposely made so that the
doors,
lenses or reflectors cannot be interchanged.
The
same type of bulb, however, is used in both lamps.
T h e basis of the S U P E R - S A F E lighting system
is the b u l b ( M a z d a 3001) with three filaments, one
32 candle-power and two 21 candle-power.
The
bulbs are placed in position in the two headlamps
so that the 32 candle-power filament is uppermost
in the left-hand l a m p . a n d at the b o t t o m in the
right-hand lamp.
T h e slots in the sockets are so
arranged that it is impossible to insert the bulbs
in the wrong position.
T h e headlamps are wired so as to give four
combinations of lighting, namely:
C i t y Passing,
C i t y
D r i v i n g ,
C o u n t r y
Passing and
C o u n t r y
D r i v i n g .
F o r
City
Passing,
both
headlamps
give a
depressed beam i l l u m i n a t i n g the right side of the
road.
T h i s beam does not glare but
it
adequate illumination.
gives
W h e n i n the City Driving position, both head-
lamps give a non-glaring beam of sufficient i l l u m -
ination for dark streets.
T h i s beam complies with
all c i t y regulations.
In the Country Passing
position, the left head-
lamp with two
filaments
lighted, gives
intense
illumination of the right side of the road close in
front of the car.
T h i s illuminates clearly any
ditches or obstacles, while the
right
headlamp
gives a moderate tilted non-glaring beam straight
ahead.
For Country
Driving,
the left headlamp gives
normal illumination, moderately tilted while the
right
headlamp,
with
two
filaments
lighted
illuminates the road far ahead.
T h i s combination
of light gives more and better placed illumination
than
is possible with conventional type
head-
lamps, even when 32 candle-power bulbs are used.
T h e standard
" C o u n t r y D r i v i n g " beam pro-
jected by S U P E R - S A F E headlamps is designed
to add to the safety of night d r i v i n g by directing
a moderate amount of light above the headlamp
level.
T h e elevated beam shows the way uphill and
around turns, and illuminates road signs and other-
objects which have most of their light reflecting
surface above the road level.
T h i s added light has been ruled to be illegal
in the states listed below,
Cadillac cars shipped
into these states have the
" C o u n t r y D r i v i n g "
beam (upper beam) modified to eliminate this
stray light.
O n cars for California, Oregon and
Washington, the N o . 9 terminal on the lighting
switch is eliminated to prevent the use of the 32
candle-power beam in the right headlamp.
T h e
standard lighting switch must not be used in these
three states.
T h e beam modification for the remaining states
consists in rendering the 32 candle-power beam
in the right headlamp inoperative by the use of a
special switch lever at the top of the steering
wheel.
Owners of cars thus modified should be
cautioned against a n y attempt to restore to use
the filament thus eliminated.
D r i v e r s from other states who are in a position
to enjoy the added safety feature at home should
refrain from using the " C o u n t r y D r i v i n g " position
when v i s i t i n g the states listed below in which the
added light is illegal.
iMassachusetts
V i r g i n i a
M a r y l a n d
P e n n s y l v a n i a
N e w Jersey
Iowa
N e w Y o r k
Washington
Connecticut
Oregon
R h o d e Island
M i n n e s o t a
N e w H a m p s h i r e Vermont
M a i n e
Ontario. C a n .
California
T h e
headlamps
are
supported
by
brackets
mounted on the front fenders.
The wiring con-
nections at the headlamps are made through a
male and female plug inside the headlamp sup-
ports.
Three wires enter the right headlamps and
two enter the left headlamp.
T h e wire tips have
different length shanks to indicate their respective
positions in the plug.
T h e plugs are also indexed
into the retainers which in t u r n are indexed into
the lamp sockets.
Thus, the connections
must
be properly made before the various parts will (it
into their respective places.
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