Bismarck daily tribune. [volume] (Bismarck, Dakota [N.D.]) 1881-1916, 1903-03-06
MORE ABOUT sRlouErrEs.
Another Successful Test 10 Made With
6riquettes Made From Soft Coal
Heating and Energy Producing

O''0NSssSo WaoS VTOW QUIZ Oodi-
Heating and Energy Producing
Power Far Superior to Soft Coal.
Another test of b~riquettes was made
in st. Paul recently, demonstrating
their efficacy as a fuel. The Globe
says: The two large boilers of the
Northern Pacific power house were
kept at al equal pressure during the
entire test and under one boiler the
%briquettes were burned and under the
other the regular soft coal generally
used in the fireboxes. The soft coal
used was carefully weighed in barrels
before being put in the fire. and the
briQuettes were also weighed. From
the first the briquettes was more
steady. During the time the test was
continued. 795 pounds of briquettes
were consumed. as against 1924
pounds Of soft coal. The difference
was 529 pounds, or 40 per cent. The
same pressure was constantly main
tanned in both boilers.
6riquettes Prove Practicable.
W. F. Wacker, engineer of the
Northern Pacific station, who superin-
tended the test, expressed himself as
satisfied that the briquettes were prac-
ticable fuel AYERS. I'VE did not be-
live that it could be DONE said he.
"but the figures speak for themselves"
Mr.. Wacker reported the result of the
test to the officials of the road.
DIR. Schimper contends that through
his process all grades of soft coal may
be made into b%riquettes and that by
their use the saving would be from 25
to so per cent over soft coal. He also
asserts that briquettes may be used
for the same purposes hat hard coal
is used for and with better results.
The b%riquettes will burn longer and
better than the same quantity of hard
coal" said he. land they may be used
in all kinds of stoves and furnaces"
That the briquettes are a distinct
Improvement yer ordinary soft coal
is beyond doubt. They burn even and
coke well in furnaces. Not only do
they burn longer. but they eliminate
the Objectionable features of soft coal.
strong gases and smoke. Through the
manufacturing process the coal is de-
sulphurized and the elements that cre-
ate the smoke are neutralized. Some
smoke arises from the ~briuuettes, but
as a result of the ~neutralizing process
the qualities that injure furnaces and
fireboxes are removed.
How Briquettes Are Made.
Tho 1r;r,otoo oocI. 80 xlo ~of
use of soft coal. The coal is ground
and placed in an oven where all mois-
ture is evaporated. Some qualities of
soft coal contain 3 per cent Of mois-
ture, others Z. and some as high as %
per cent. This moisture is entirely
e%vaporated an1 the pulverized coal is
then mixed with a binder composed OF
hydro carbon and a secret chemical
For every ninety-f1ve pounds Of coal
five pounds of binder are used. The
mixture is then compressed in the
shape of bricks. Any size or shape
may be produced, according to the use
for which they are designed. The re
markable feature of the invention is
that from N tor Of refuse practically
a ton of %briquettes may be produced
and that a ton will go from 25 to sc
per cent further than a ton of soft coal
The cost of making the %briquettes by
DR.. Schimper's process is $1.25 pei
ton.
DIR. Schimper recently conducted 6
test with Ignite briQuettes on the Soc
road. in Minneapolis. and that com
pany was convinced of the value of tn,
briquette as a substitute for coal. Tn,
government has been interested in tn,
invention and has ordered from DR.
Schimper two tons of the briquette
for a test in the navy.