East Oregonian : E.O. (Pendleton, OR) 1888-current, 1920-03-27

tations imposed BY the natural charac.
teristics OF solid tires. M
A small number OF firms build !
trucks especially for pneumatics but I
the number Of makes of this sort Is I
very limited. The number will un-
doubtedly grow rapidly, for the ad-
yantages OF having a truck ride on
air are so apparent that the demand
Tor trucks designed for pneumatics
cannot help but become great in the
Immediate future.
a truck designed for pneumatics
differs radically from one built for
old tires Truck and tire engineers
are now working together to solve the
problem OF faster highway transpor-
tation and the solution IL found in a
truck specially designed to operate on
pneumatic tires, having a chassis cor
re responding to that of passenger car,
an engine which will drive the. vehicle
at high speeds and still show the
necessary economy in gasoline and oil.
rear alike and dHferential gears
which will compensate for the larger
outside diameter Of the tires, and a
breaking system that is powerful
enough to give the driver complete
control Of the heaviest truck under all
| conditions.
1t is because most trucks are design
ed for operation on solids that truck
users may find pneumatics unsuited
| to their requirements If a truck de-
signed for solids is changed over to
! pneumatic tires. the increased cost OF
this equipment can be most easily off,
set by increasing the radius of action;
that Is. increasing the speed. While
| the tires are designed for this the
| engine, transmission. differential
gears and brakes are not.
Another limiting factor that. should
be clearly borne in mind is that pneu-
/ matte truck tires have been satisfac-.
torily perfected only in sizes up to
and inches Larger tires than this
are still in the experimental stage.
There are some conditions under
which 1t is wise to change over from
solids to pneumatics, even though the
truck construction contemplates the
use of solids. There may be certain
disadvantages as a consequence of the
change, but these will be more than
offset by certain. advantages to be
gained through use OF the pneumatics.
Because of the multiplicity of uses
to which motor trucks are put, it is
almost impossible to lay down any
hard and fast general rule showing
the conditions under which pneumatic
| tires should be used, or under which
solid tires would be proper equipment.
For information covering any particu-
| lar case, the truck owner is referred to
the sales and service depots OF the
United states Tire Company.
Pneumatic tires have certain very
definite advantages over solids. 1t is
| just as desirable to have all trucks
operate on penumatics. The inven-
ton of the pneumatic tire was one Of
the greatest tsteps forward in the de-
velopment of passenger car, and the
pneumatic tire for trucks is as great
a ste pforward in the evolution of
motor trucks. There is no doubt that
ultimately pneumatics will be the
standard equipment for practically all
vehicles of this character.
The United States Tire Company
was the first to develop pneumatic
truck tires and there can be no ques-
tion today as to their durability and
reliability. Nobby Corn pneumatics
have successfully met the test of hard
usage on thousands of trucks under
the most trying conditions and have
proved their worthiness, because they
are and always have been specially de-
signed for truck service and are not
merely an enlarged passenger car type
of tire. Until trucks are designed es-
pecially for them. truck owners should
hesitate about substituting pneuma-
tics for solids unless they are sure that
pneumatics are better suited to their
trucks and their needs than solids.