Cresco plain dealer. (Cresco, Howard County, Iowa) 1913-1945, 1916-12-08
IMPORTANCE ATTACHED TO CAR
BON TEST.
Dodge Brothers Laboratory Expert,
Make Minute Examination. Of
Steel and Iron.

Steel and Iron.
The test for the determination of
carbon in steel or iron, while common
to all large industries having to do
with these products, always remains
most interesting and important sub.
ject. In the Dodge Brothers labora-
tories it is given particularly close at
tention.
There are two circular furnaces.
These are electrically heated to 1850 or
1900 degrees Fahrenheit; the exact
temperature being recorded by a plati-
mum rhodium thermocouple. The steel
or iron to be tested is mixed with alum
dnm sand and placed in small alum
dunn boat The boat is inserted in the
furnace and burned 20 .or rs minutes,
stream of oxygen pouring over it con-
stantly. The oxygen is purified by
first passing through train of tubes
and containers. In turn it comes in
contact with potash, soda lime and cal
cium chloride. Each of these is chem
ically pure, insuring dry, untainted
gas at the outlet, where the oxygen
passes over the hot iron or steel chips
and burns them. The result is a de-
post of carbon dioxide from the car
bon in the sample.
Other gases are given off during the
burning and are absorbed by passing
through granulated zinc calcium chlor-
ide and PHOSPHORUS pentoxide. The
carbon dioxide gas is now absorbed in
a tube Of chemically pure soda lime.
The increase in weight of this soda
lime is determined by balances which
are sensitive to one four-million-five-
hundred and thirty-thousandths of one
per cent. Since the hardening process
is dependent largely on the amount of
carbon present, this determination
method enables Dodge Brothers to
classify all parts according to the
strength required.
F. Lee Sheppy, 172 N. Halsted Street,
Chicago, ILL.,, General Sales Manager of
the largest concern of its kind in the
world, wants three or four men in
Howard County and several men in ad
joining counties, to work for him spare
time or all the time. He can use only
those who have rig or auto. Work is
very pleasant and no previous selling
experience IS necessary. Work con-
sists of leaving a wonderful new house
hold necessity in the homes on free
trial. Tests at more than thirty of the
leading Universities and the Govern.
ment Bureau of Standards show this
new article to be four times as effici-
ent as article now in general use in this
section. Article is needed in every
rural home and benefits every member
of the household, bringing cheer: COM
fort and happiness into the house. Not
necessary to be away from home
nights. Pay from $500 to $500 per
day according to ability and number of
homes visited. In writing Mr.. Sheppy,
mention what townships will be most
convenient for you to work in; what
your regular occupation is; your age;
married or single; how long you have
lived in the community; what kind of a
rig or auto you have; whether you wish
to work spare time or steady; how
much time you will have to devote to
the work; when you can start, and
about how many homes are within six
miles of you in each direction. This is
q splendid opportunity for several men
in Howard County and counties adjoin-
ing to make good money, working
steady or spare time. Some of the
field men earn $500 per month; one
farmer earned $1,000 working spare
time only. No investment or bond
necessary.
For Sale.
Yearling Heifers. Enquire at L. J.
Mouor,o hale rn;1o oa.% ~ 0rosoo 1Ekf