The Waxahachie daily light. [volume] (Waxahachie, Tex.) 1894-current, 1915-09-18

THE BEGINNING or THE .
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Chapter VII.
How studrtskcr Makes studcbalcr
Motor.
The Studebaker purchasing d.
partment selects pig iron of the pur-
est quality for Studebaker castings
direct from the blast furnaces. Add
ed to this iron there is 30 per cent
of steel. The iron and steel are
put into a cupola and, with coke
burning under forced draft. are melt
ed. chemical is added to flow off
the impurities. and at the bottom %.
the cupola the mixture OF iron and
steel runs in glowing liquid reads
for the molders.
But long before the first motor
was cast, its intricate design had
been figured out with scientific pre-
lcision and created In a wooden or
metal form called pattern.
/ From these patterns are made the
molds of sand. We require expert
skill here. and this is where the
years of Studebaker experience in
molding are manifest in splendid
workmanship. The sand molds are
developed by sgecialiy designed ma
| chinery and by expert hand work.
Into these molds is poured the
!! fluid steel-iron mixture. The lab
oratories of Studebaker have so
tested and so refined the kind OF
iron-steel mixture that it flows per-
fectly through all the intricate vino
| ings of the motor casting.
| So perfect are the Studebaker pat
tern work and molding work that
the walls OF the Studebaker cylind-
eys are of uniform thickness every
where
| ! Yet il took, even with Studebak
er expertness, nearly two years of
continuous effort for Studebaker 70
produce its first perfect six-cylinde.
unit motor casting. 1t required
great resources in men. money, and
machinery to carry on these expert
ments for two years, but Studebak-
er must make sure.
Before the advent of the Stude-
baker castings, you found manufae-
turers of motors casting cylinder
at time. But since Studebaker
/ set the pace for the perfect 81
/ bloc-cast motor three years ago, one
/ by one the manufacturers of single
cast cylinders are being forced TO
come into line. They have abandon
ed their single-cast blocs. They are
abandoning their cylinders cast in
PAIRS and their cylinders cast in
threes, and they are all gradually
coming to the en- bloc-cast, motor.
The expert today viii tell you that
there is no finer motor casting than
that made for the studebaker -Four
and for the Studebaker Six.
nut otuucbdhtl ltq Is mo- :
than perfect casting. Not until
a6ter the casting is tested under COM
pressed air and under water at sew
enty-fiye pounds pressure does the
work of manufacture begin. Tue
four cylinders or the six cylinders
must be bored out win precisi IN
las painstaking as that required 80
bore gun barrel.
Studebaker has developed motor
boring machinery which bores four
cylinders or six cylinders at a time.
THE cylinders are bored in line to
one one-thousandth OF an inch.
They are of the same diameter ID
one one-thousandth of an inch.
There are the valve openings
which must be bored With minute
precision studebaker has devel-
oped machinery which bores eight
valve openings for the four-cylinder
motor and twelve for the six-cylinder
motor, all at the same time. with un
varying precision.
| There are the bolt holes for the
bolts which fasten the cylinder cast
ing to the crank case. In the four
| cylinder motor there are nine bolt
holes; in the sixcyiinder motor
there are thirteen bolt holes. In
both eases these holes are bored at
a single operation and each with per-
! feet relation to the other.
The bearing openings must be
made with the same precision.
Again We find a Roaming machine
developed by Studebaker which
bores the openings for the cam
shaft bearings as accurate as an ar
Dor for watch jewel.
The same is true of the crank
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| [ REMEMBER I