The Lake County times., 1921-11-22
NEW RULES
FOR INDIANA
AUTO DRIVERS
.IspSeIAL TO rHg rlwrsJ

greatest
% the owners of motor vehicles of All
tyss IN Indiana was issuad ,,es+e-s..-
BY I'd Jackson, secretary ~ s.a.e
comprising the regulations prepared
oy 1. ]. Taylor. state AUTOMOBILES 1trb+
engineer. covering the use or autono-
Die or motor vehicle headlights on The
sp@etS and highways OF the state
MS is In conformance to an act Of
the 1874 general assembly.
seeking TO safeguard the highways
ana inotor travel at night the new
regulations represent the advanced
thought OF the Society OF Illuminating
Engineers and the Society OF Automo-
tive Engineers. This announcement
OF Secretary Jackson is issued through
the Hoosier State Automobile associa-
uon, which organization has prepared
state in the application and enforce
nent OF the regulations. and a state
widc educational campign. The active
cooperation of the Indiana Automo-
tive Trade association is also pledged.
These regulations have been com
piled with but one view in mind" de-
elarss Secretary Jackson This is TO
establish a set OF uniform light con-
dftions for motor vehicles operating on
the public highway that Will add to
safety and convenience of night driv-
ing and to safeguard the lives OF all
persons using She streets and high
ways OF Indiana after dark"
Announcement Is made that the reg
ulatons Will become in full force and
effect in thirty days from this date
The secretary points out that to com
ply with the regulations. IT will be
necessary for each motorist In Indi-
ana to give attention to the following
items:
l. Equip headlights with proper de-
vice for detecting the light rays ac-
cording to the -four point west, az
described hereinafter.
.. Install lamps Of proper candle
power rating for the device used
(Maximum c. p. permitted is 32)
D. Adjust lamps TO proper focus In
there fsctors TO comply with the re-
quirements OF the device used for de-
aecting rays.
4. Adjust or equip headlights to
give the light beam the proper tilt on
roadway.
The Indiana specifications are now
virtually the same as have been adopt
ed by New York, Massachusetts,, Con-
necticut. Maine. Ohio. Pennsylvania. |
Vermont. wisconsin. Iowa and other |
states. They will require stringent
cleaning house" on all make shift de- |
vices now on automobiles. trucks. mo-
torcycles or other motor vehicles. The /
new regulations will not permit the /
use OF devices which tend TO diffuse or |
spread the light from headlamps in
wide circle.
In the ''four-point" test. varying /
regulations are prescribed for pas
senger automobiles. slow moving 7
trucks and motorcycles. In addition to |
setting forth requirements for defect
ing DEVICES. the regulations provide I
for the use of auxiliary bulbs in front +
headlamps or resistance type dimming t
of the main bulbs 1t is provided that
on we'll lighted streets or highways. |
cities or towns may require the sole
use OF these auxiliary bulbs or dinmed
lights, no matter II the headlamps are
equipped with legal DETECTING devices
Notice OF enforcemen of this provision
must be given by posting suitable
signs on such well Illuminated high
ways.
The lighting engineers specifications
for the -four point" test for headlights
provides that g. screen or plane sur
face perpendicular 10 the roadway be
used. This Is stationed 100 feet IN
front OF the motor vehicle. which shall
stand on a level surface.
Point No. is indicated as being
seven feet 10 the left Of the center
avis ~ the vehicle. 100 feet distant
and so inches above the level surface
on which the vehicle stands. At this
point. the light intensity shall not ex-
cead 500 candle power 1t Is highly
important TO note in connection with
all these tests that the requirements
stimpulate the tests must be made with
the vehicle fully loaded according 10
its use and capacity
Point No is on line derectly In
front Of the center axis OF the vehicle
1oo feet distance and 60 inches in
height. Al this point the regulations
declare the passenger car lamps shall
re xister not to exceed an intensity of I.
24oo candle power. This intensity +,
must not be exceeded at distance
higher than the prescribed 60 inches
above the level on which the vehicle
stands.
Point No. is directly in front of
the center axis Of the vehicle 100 feet
distant and at one-half OF the height
from the round level to the source of
the light. At this point il is required
that automobile headlamps shall reg
ister a light intensity of at least 4So0 /
candle power Slow speed trucks shall
a light intensity OF 1900. and
the same a this point
This Is the point of greatest lighting !
Intensity in front OF a motor vehicle j
Point No. is seven feet to the right I