El Paso herald. (El Paso, Tex.) 1901-1931, 1920-06-19
REPAIRS MOST DIFFICULT PHASE
OF PNEUMATIC TIRE SERVICE

THE final instalment Of an abstract
j Of the paper on Relation Of Solid
and Pneumatic Tires 20 Motor
Truck Efficiency" by s. v. Norton. Of
the Goodrich Tire and Rubber com
panys read before the recent national
convention Of the Society Of Automo-
tive Engineers. said IN part:
The nature and extent OF service
Of the maintenance and renewal OF
solid tires are well known years OF
study and competition have developed
this end Of the business to a high de-
gree Of perfection, so that the opera
tor can depend upon many well
equipped service stations for instant
attention. either in the day or night
"Ths manufacture OF heavy duty
pneumatic tires OF six Inch section
and larger, Is, however. a relatively
new development, less than a third
OF the manufacturers Of passenger
car tires have started actively 10
make heavy duty pneumatic truck
tires, for they realize that the JOB
OF building a tire which viii stand
up under the use and abuse 20 which
Moreover the task Is not finished
when the tire. comes out of the
heater. II must be sold 20 the dealer.
who. in turn. must not only stand
behind the tire, but place himself in
position 10 give the truck operator
service. This means he must install
high pressure air pump, repair ma
terial and molds for vulcanizing and
IN most cases a service car for emer-
Eencv calls. as II must be remembered
base and It cannot be driven home
Tat.
Tire Concerns Unprepared-
"The tire companies themselves are
not as yet prepared 70 give really
efficient service in all parts Of the
country.
aBy Tar the most serious and diff
cult phase Of giving service with
heavy duty pneumatics, and that
which causes the most concern 70
truck operators, IS connected with the
repair. In fact, the chief complaint
in reEard TO pneumatic truck tires
aside from their high initial cost is
that they are subject 70 injuries. cuts
and dauaue generally OF such ma
ture that they cannot be repaired eX-
cept at the factory where they are
made. or in G few cities at a factory
branch. and often thew are damaged
Beyond ali repair This T. not only
expensive. but frequently necessitates
the purchase Of more than one set OF I
spares should the first set be IN
5ured while the others are being re-
uzfred. 0ftentimes the principal cost I
the necessity % laying up trucks I
awaiting new tires, due 70 stock I
SHORTAGE. OF sending the damaged I
tires 70 the nearest factory branch I
for renair. Moreover, repaired cas- I
inEs frequently deliver but small I
mileage due 10 the overcure Of the 4
Joined portions. This danger Is most 4
difficult TO overcome IN the large I
sections due to the longer cure re-
ouired 10 vulcanize the interior Dor
tons OF the new part Of the casing.
10 doubt this feature viii ultimately /
be corrected
Tread Gives Less Trouble
The tread seems to give less /
trouble than the side walls which I
are more susceptible to rut wear and
overlooking abuse
The movement toward the use Of
pneumatics should not be condemned
however. for undoubtedly Il VIII be
the means OF increasing the scone Of
usefulness Of motor transportation
@The field OF each type OF tire may
be separated into three classlfications
within which the operator may reas-
ouably place his installation. and /
select his equipment accordinEly.
These may be called. ID the impera-
tive field q the economic field. and ]
80 the optional field.