Harrisburg telegraph. [volume] (Harrisburg, Pa.) 1879-1948, 1917-12-01
CHALMERS MODEL
PROCLAIMED BEST
Distributors at Factory See
Tests of Hot-Spot En-
gine Efficiency

Distributors from big cities scat
tered through forty states, of widely
varying local conditions, have by let
ter, telegram and in a majority of
cases on personal visits to the hum
ming factory, declared the now cur
rent Chalmers the greatest e~"ine
and best automobile ever turned out
by the Chalmers Motor Company.
Such praise is not founded on
mere selling hopes and expectations
but the story of the individual own
er transmitted through respective
Chalmers distributors an organiza-
ton of thrifty reliable businessmen.
Thousands of these cars are now
being driven by motorists heretofore
the owners of high priced automo-
biles. A great percentage are oper-
ating in the clutches of winter. But
all, irrespective of Utner conditions,
have been subjected to the low
grade gasoline problem of the pres
ent hour.
1t is on this score OF Chalmers
triumph that the dealers are turn
ing in their praise, of something al
ready accomplished. For it is di-
fold and the Chalmers Hot-Spot, his
tory makers in the world of auto
mobiles; that low grade gasoline is
now being converted into high-grade
power by thousands of Chalmers
owners.
Reports without number are tell
ing of the hot-spot success in the
coldest kind of weather. rainy nights
and frosty mornings. How at one
IA
nent doctor, with a roadster only
forty-eight hours old. left his new
car in the open driveway, where
it was covered with ice and snow.
And yet when reused by Il four
O'Clock sick call the famous hot
spot engine shot him off into the
night without a moments wait.
Referring to summer and its ac-
companying heat; Chalmers engi-
neers have emphatically proved tho
hot-spot as effective in a zone of
heat as in the belts of ice and snow.
The purpose of the hot-spot, located
at the throot of the carburetor, is
to heat and crack the incoming gas
and pass it on in Il thousand par
ticles through the easy air bends of
the famous "ramshorn manifold.
Primarily, this unique device, is to
overcome the trouble in starting
and picking up speed when the ther-
mometer is down to cold and freez-
ing.
But even in cities. Chicago, for in
stance. where seasonal changes
show an average variation of 100 de-
grees in the thermometer, the hot
spot is equally effective summer and
winter. Even if such a variation OBJ
tanned generally throughout the
country, engineers point out that a
difference of 100 degrees or even
more, on the exterior. is not to be
compared with the terrific heat on
the manifold interior.
1t is estimated that 95 per cent of
owners run their cars with the
throttle twenty-five per cent open.
and when thus used, the prevailing
slightest difference.
In summer heat, supposing the
throttle were allowed to stand wide
open, a greater flood of gas would
naturally be admitted, thus raising
the flame to a fearful heat. But, al
the same time, the velocity of the
gas then rushing past the hot-spot
is so lightning-like in it's speed, thai
the heat is absorbed in relative pro.
portion, and only up to a degree an.
ticipated by Chalmers engineers.
Consequently the Thermometer
may soar to 100 degrees in the shade
or drop to zero, without the slight.
est effect on the great Chalmers en-
gine. A point so scientifically work.
ed out, after months of laboratory
work, that the Chalmers stands to.
day as one car that gives high power
from low grade gasoline-365 day:
in the year.
Such thing as a gauge or visi.
BILE control is absolutely unnecessary
for the reason that the heat of the
gas against the hot-spot is automatic
and either increases or decreases, ac.
cording to the power required. Ac.
cording to the extent of the throttle
opening.