El Paso herald. (El Paso, Tex.) 1901-1931, 1917-11-03

I the man who drives a car anxious 10
secure the best illumination for his
path, but with so many lighting laws
state and municipal In force, Il be-
hooves the motorist 20 be sure that he
Is on the right side OF tie law. We
shall try 70 explain briefly how the
car owner may obtain the best pos
sobls illumination and yet not breab
the law.
In the first place the motorist
should know that there are many
lamps which viii give o satisfactory
/ Illumination only with a certain type
and size of bulb. Every car owner
should ascertain what special bulb
will give the best results with his
lamps and he should keep a reason
able stock OF such bulbs on hand and
In the car when on tour. Bulb cases
may now be had that enable the
carrying Of those devices without
danger Of breakage, the former buga-
boo.
The motorIst should carefully eI-
anime all bulbs purchased often
there Is an excess OF solder on the
base of the bulb and this prevents the
proper contact OF the bulbs In the
socket When such a condition exists
in a bulb already purchased, IL may
be remedied by filing off the eN-
cess solder or scraping It off with a
knife.
When the motorist has obtained the
correct bulb equipment, there stiu re-
mains the matter Of adjustment be-
fore he Is assured OF satisfactory
lighting. Unless the lamps are prop
erly focused, only faulty Illumination
will be obtained at best The best
way TO focus the headlights Is 70
drive the car with lamps III, 20 within
20 feet OF wall. barn door or some
he HHa.HH L. q
just the lamps so that the bulbs are
as far back OF the reflector as pos
sible and then observe the image
made by the lights on the wall In the
center Of each circle OF light there
should be a black spot II this black
spot does not appear. the adjusting
device IS limited 20 its movement 70
the rear. II the black spot shows OH
dead center OF II 10 Is not exactly cir
cular IN form, u is e sign that the
filament Is not In the axis Of the re-
Hector.
This trouble may be caused by the
bulb not seating quite correctly in its
socket. Try giving 10 a half turn be-
fore returning 10 TO the socket II,
however. the bulb has tendency TO
spring away from correct position,
the fault must lie in the socket or in
the focusing device, which VIII have
10 be remedied by the lamp maker or
service station
Now ne win presume that the black
spot has been duly brought into the
center OF the image and the problem
Is 70 get rid OF It ADJUST the bulb
by moving IL forward until the de-
sired effect is obtained. In some
socket adjusting devices the move
ment toward the reflector is not so
great as the movement away from Il
and the best image is obtained by
moving the bulb out Of the reflector
as far as possible.
The number Of adjustment devices
is large, some Of them attaining their
object by moving the bulb, others Dy
a screw at the back and others b.
moving the rim OF the lamp. IN
manipulating lamps where the focus
is obtained by moving tine bulb, care
must be taken not 20 loosen me DuLD
from its base during the operation
There is another type OF defect that
is sometimes encountered This IS
~ here there is lost motion between
the socket and the bulb. This play
displaces the source Of light. that is
to say, the center line Of the filament
does not coincide with the center line
of the reflector and the result is
distorted image and poor light As
matter OF fact. some bulbs are made,
though not purposely so, that the
center line OF the fllament Is offset
from the center line or the bulb base
A bulb OF this kind is not particularly
for the work IN hand. but It
is sometimes possible TO change the
position Of a bulb OF this kind SC as
TO remedy the trouble.
No matter how efficient his light
ing system may seem 10 be, 10 is &
good plan for the car owner 70 make
an occasional examination OF his
lamps TO see that the filamenrs are
properly In line with the bases. II
there is any question about the con-
diuOn OF any bulb, Il should by all
means be replaced
Practically all lighting laws now
Insist that the headlights shall be so
directed that none OF the glaring
beams shall be more than ~ inches
from the ground Now, quite aside
from complying with the law, this IS
good common sense The mOtOrist Z
needs the light on the ground and not
In the air The lamps may have an
adjustment or, II not, IL is a simple I.
matter 10 have the brackets bent 10 !
achieve this end
While brings Us TO a brief consid- |
GRAFTON OF the subject OF glare elimin- ]
ators, Of which there are almost end I
less variety on the market. Methods /
of removing or controlling the glare /
.all readily In certain definite classes, ]
depending on whether the light is I
controlled at the bulb, between the D
bulb and the reflector and between ]
he reflector and the lens.
When the glare removal takes place I
u the bulb, IL may take the form OF I
IN actual dimming OF the light, the 4
,olOr may be changed. part Of the 4
bulb may be covered or the bulb may
De frosted At the reflector, the color l
nay be changed or the upper portion I
II the reflector may be offset from /
he lower 10 throw the light down on I
he road or, again, the upper range I
" the reflector may have an Inclined ]
Xis or similar means OF DETECTING
he dazzling rays When the elimiua-
ion OF glare takes place at the lens.
his may be Of special construction
which diffuses or defects the bright I
neams. IL may be frosted OF colored.
'reen or amber, or II may be covered /
with a suitable shield Some OF these /
enses or glasses are constructed 70
binding rays.
In r,a-- 49, -r--. -r..I-r --rn-.