Evening star., 1928-03-11
In the Motor World
BY q. ADAMS HOWARD.

sides the traffic violations, the
man in question has a score more
convictions, including grand lar
ceny. assault with a dangerous
weapon, and prohibition law vio-
lations. His permit was Cancelled
october 10. 1924. and since that
time he has been convicted eight
times for driving without a per-
nit.
For his last offenses the de-
fendant was sentenced to 36C
days and fined $1,000 for reckless
driving. and sentenced to Jail for
$50 days and fined $3.50 for oper-
ating his machine without a per-
nit. 1t is pointed out at the
Traffic Bureau that this is what
a persistent violator Of the traffic
regulations can expect. There
are few. 1t is stated, that only
continual imprisonment will keep
from operating on the streets of
the city. Everything possible
should be done to keep violators
of this nature off the streets.
And in this respect. it may be
stated that more than 80 permits
were withdrawn from their hold
erS last week.
Encouraging reports from the
various automotive fields continue
| to be received. Sales records of
many companies have been brok-
en- and indications are for month
ly increases.
Interesting Report.
An interesting communication
on various odorS from automo-
bileS that are noticeable in the
city every day Is published in the
Automotive Daily News of New
York last week by Max Won
RecklinghauSen. The commune
cation in part is as follows:
Nobody doubts nowadays that
the enormous usefulness of the
automobile is accompanied by
some disadvantages, which are
getting the more noticeable the
more the number of automobiles
increases.
Our eye notices the fumes
escaping from the cars. Our nose
can distinctly distinguish between
two kinds Of smells inherent to
the use of the automobile
namely. the smell of more or less
disintegrated rubber and the smell
Of the exhaust. All these smells
are infinitely more noticeable
when we come from some place
with pure air. say from the sea, 70
one of our towns. Many people
feel a positive discomfort from
such changes and the health au-
thorities are busy studying means
to counteract these disagreeable
phenomena accompanying our
modern life of transportation and
speed.
Let us first attack the problem
OF the rubber smell. This is
caused by the gradual wearing
away Of the surface of the tire.
The friction Of the tire on the
ground pulverizes the rubber and
the heat of the friction more or
less cooks and burns the rubber.
Il think that we can safely say
that about one-third of our rub
her consumption finally ends In
rubber dust and more or less vola-
tile products Of the Superheating
Of the rubber. The latter are par
ticularly obnoxious on account OF
their smell. I do not think that
there can be any remedy against
these smells Of the disintegrating
and burning rubber unless some
day rubber is replaced by some
other material. So. our towns will
continue to have their haze of
rubber dust and rubber smell hov-
ering over them.
Exhaust Smells.
eff we now speak of the smells
OF the exhaust we will find that
they are created by various
means. They all originate from
the two liquids which are used In
the car engine-the fuel, viz, the
gasoline-and the lubricating oil.
"Of these two, only the gasoline
has a distinctive smell at ordinary
temperature. Lubricating oil viii
smell only when either partly
burned or when very finely dis
tributed in the form of cloud.
Mostly, as we smell the oil vapors
from the exhaust, we will find
that there is a little Of both: that
our vapor clouds are composed of
finely divided and at the same
time partly burned oil.
However. there Is one or more
product in the exhaust which.
invisible to the eye and In itself