New-York tribune., 1876-03-24
4 NEW FUEL.

COAL DUST COMPRESSED AND BURNED.
TIE MANUFACTURING PR0CEsSES-MATIRAIs MINED
WITH THE DUrr-THE BE,CAS MADE WATER
rRooF-CHgAPSI.ss oF THE FUEL
PHUADELPHIt, March 2l.-ln October, 1870.
TnE TKiBUSE published full account Of new process
invented hy T.. r. L,,eau of Mauch Chunk, Penn. for
manufacturing tuc from tAe waste Of anthracite coal
The process. small scale, WAS shown at the Ahsr'
can Institute Fair Of that yoar. great many practical
dDcutc, had be overcome before II could bc put IN
operation on larc scale but they have all been sur
mounted at last and Large factory for making the now
fr go.s Into operation this week The matter has
been kept ycI quiet of late All the stock In the mannfac-
turin. company IL owned by few wealthy coal AID iron
operators In Philadelphia and Newly YORK. aud although
tAe process ia said to bo amply protected b. patent,
Company, for Reasons of their OWN. have kept
their operations much secret rs possible. The dust
of bi.uIunous aud soni-Dtu.nuOuS coal has long been
converted fuel IN Europe, 10y tn addition OF pitch
coalar and used in tho form oi bricGs IN locomotives
ana stationary engines but the offensive odor emitted IN
buruhg has made it impossible To use the fuel FOR do
mcsc purposes. Besides it is too expensive ior general
use except where coal IS very dear What Mr L)iseau
discovered was method OF making fuel from anthra
dust that would burn without odor In CRATES ANA
stoves, and would bear handling and exposure ~ the
weather without crumbng. THIS discovery woaid have
been Of little value without tho invention ot machinery
that made it possible manuf clue the Artificial uel az
and get perfect running order has occupied the in-
yentOr for many yc'rs.
The new fuel is composed OF % per cent OF coalust
ami per cent OF clay, with small amount OF gdc
like mixture made OF rye our and slatcd lime. IL Is in
pieces of the shape and size OF hens To mako the
pieces aporvOus water they dipped in solution
OF "canllcli!n," u rcsiduum ol ptrliinc, and Grade
bcnznc All the Misunderstanding processes novel and
Ingenious The clay Is dried Ia oven shectirOG
piutr,. fire being In running A
that IT BE- pushed forward backward under the
plates Ttcn tho clay - hOi5cd up 30 upper story.
pulyoliLed IN mill, and deposited IA woodi, recepts-
c!e Close ~ hand iron boiler feet ~ dauoter and
iect h!gh, IN which tile paste ~ cooked by steam ana
stirred Dy revolving paddles. The paste H. Of the
sls;cucy Ol thick CREAM and escapes 10y pipe AT the
bottom OF the churu. The coIi-ust Is drawn up
inclined plane small ears and thrown upon OeC!la-
inS Wire sciccn Whrh taxes out Gii OF STATE
siLdil chunks Of coal A the duSt fall through
1t IL carried IN hn endless cham bucket eie-
yatOr 10 bin holding five tons. Now
the du.t and the clay fal down into
n curious little machine that measures OUt inst the
proper proportion Of cac and throws both nsredent5
OF the utIc fuel inO common ruccptacc. But wLilc
they dropping into this receptacle thcy receive
iron pipe. Another chan elevator takes the cOuningcd
ingredients up and deposits them Ia huge iron chun
holding siN tons, IN which revolving siaits,
that swing their great toOthGd about IN opposite
drcuons and thoroughly mix the black g,st. The sub
stance II Of the consistency OF moist sand. III f5
upon Gather bgnd. nnd is carried 10 the hopper Of tie
pressing machine This consists OF two iron cylinders 30
mchos In GaI1atrr aud the necessary apparatus 10 re-
largo molds ani JG small ones, and the .nols On the
tao come together they Press the SOFT mixture into
shape, aud atterward drop the ogglko chunks upon
moving Tifocioth belt below. The larger pieces