The Birmingham age-herald. [volume] (Birmingham, Ala.) 1902-1950, 1918-03-10
DOSS TUBE GIVEN
TEST BEFORE SCR|bES
OF ATLANTA PRESS
Demonstration at Plant of
Big New Concern Last
Sunday Proved Most
Successful

s.Relief from tire troubles has been
the dream of motorists since the au-
tcmobile came into general use and
the demonstration of the new Doss
puncture-proof inner tube given last
Sunday In Atlanta showed conclusive
~ that a solution of one OF the most
serious problems confronting automo-
bile experts has been reached" said
w. c. Waller of the local branch Of
flee for Doss Tire and Tube COM
pany.
THE automobile editors of the three
Atlanta newspapers witnessed the
practical test, which exceeded the most
severe usage encountered by an au-
tomobile tire in everyday service.
"A four-inch nail was driven
through casing and tube, not once, but
several times and then the heavy
limousine, one of the front wheels Of
which carried the tire, was driven
over city streets and country roads
for more than three hours.
Then, after the tube had been sub
jected to a practical test of such ex-
IRENE severity, an examination showed
that the tire was as tight as drum.
NOT a sign of deflation could be de-
tected.
with an ordinary tube the tire
would have been flat within a short
time after the first nail hole was
made, but the Doss puncture proof
tube passed successfully through the
ordeal and sustained its reputation. In
addition to the newspaper men, the
party witnessing the demonstration
included T. ]. Davis, vice president
and general manager of the Doss Rub
Der and Tube company; Jay Rudisill,
a director; P. NJ. Cline, c. H Black
and s. e. Thatcher representatives of
the company. DR.. N. C. Doss was UNI
able to be present on account of Ill
ness in his family.
The party witnessing the test left
tho Piedmont hotel at 2:30 p. m. and
motored to the new factory being
erected by the Doss company opposite
Fort Mcpherson. This plant is we'll
under way and although unfavorable
weather conditions have delayed oper-
atoms considerably 1t is expected that
the construction will be completed not
later than next month, when the first
consignment of machinery will arrive
from the manufacturers.
Motoring back to Atlanta by a cir
cuitous route, the party passed sew
eral cars parked at the side of the
road their drivers struggling with
punctured tires. and the efficiency of
the Doss puncture-proof tube was
made all the more apparent by con-
trast. On returning to the city after
a three-hour run, an examination of
the much-perforated, but not Debated,
tire showed that the tube had resisted
all strains upon 1t and was apparent
" able to continue In service indefl-
nitely.
while the Doss company styles the
new tube 'punoture-proof,' in reality
it can be perforated by mails and
tacks. but the difference between this
tube and others manufactured from
high-grade rubber is that 1t is self
healing. nail may penetrate the cas-
ing and perforate the tube but the
hole is Immediately sealed herm etical-
~ and no air escapes. It is on this
newly developed principle that the
Doss tube depends for its efficiency
and by this means solves a knotty
problem for motorists.
TN demonstration Of his claim that
his tube will prolong the life of a cas-
ing. DR.. Doss tells of a test made
with the first puncture-p proof tube
manufactured by him in 1915. This
tube was placed in a casing of Good
year make. guaranteed for $500 miles.
A similar casing equipped with an
ordinary type inner tube of standard
quality was placed on the opposite
wheel of the car. The casing contain
Ing the Doss tube made 10000 miles
IN actual service, while the opposite
casing was worn out after $500 miles"