The Red Cloud chief., 1886-04-02
ouMpowpeR.


O0v0POWOe"
uov IN. ,nr,AA. = eessary to Its
NAnuGaeonso Ar. Prepared
Gunpowdsr = ccrlpo-ed o! three
material. sulphss. sai'pcier and
charcoal. Eu, tssihg tesc materials
together n wsy doe, -; make gun
powder by any meals There i a
method. and il h En- what COM
plica;.d. Tina, panue,t At the most
famous factoric, h n follows: The
saltpeter comes chief, from Bengal
and other provinces in India. where II
i, found mixed With the soil and A.
an i~ncru.ta,ion on the ground. II i
boiled and crv>,,lized BY evaporation.
Before il i, used At the factory II l.
purified hv a process which acts on the
principle tina, no; " ter will receive IN
the solution NOR II the sas,pc;er than
the impurities mixed with IL - the
sal,pct,r !, boi',d in water. the result
in solution filtered andcoo' ei in large
yat-. at the bottom Of whic.i the pure
,altpc,cr i d-po-ite! a I'm. crystals.
Il D., then washed. Gri,i ano stored in
bin>. care beng taken hat n sand or
gritty particles are introduc,d a, un-
der pressure they mi.lt produce an
explosion.
The same precautions sre "a ken with
regard 10 the production II the sulphur
and charcoal. The b,-t >ulphur come,
from Sicily. II j. purified BY adi,til-
ling process. which brings il out in
handsome yellow crystals. Tim il is
pulverizcd by being ground und r iron
runner and >i.trd in Il kindo Of l'evolv-
ing cylindrical sieve called . slope
reel" Alder and willow are y, mi d
near the factories. and ne CHI. rco Al
from these is used for common POI. de-.
and black lockwood i used ,pr I'm, riff
powder. The charcoal j. not PREF ,red
in pits. but the wood i ,awed nto
short lengths and packed into iron VI
inders. called slips. which are pla ed
on a small carriage and run INTO . re-
tort like that used in "a, work4 H re
the cylinder, ar. exposed - the flames
for a period Of two and a half or thr, .
and a half hours. the gas i,>uing fror.I
the wood beng utilized for fuel. II
charcoal. when taken out. i, ground ir
a machine llk. a giant coficc-miu, AM
then >iftcd like the sulphur.
The next process, i, mixing The in
gradients. The proportions ytIy in
different countries. For English Gov
sal;peter. Scvrn.y-iivc parts; III thur.
ten; charcoal, fifteen the sulphur b.
ing reduced almost To a minimum. -
its chief use i to ignite the chargr and
hasten its motion. The ingr.iirnts
being weighed for a charge If fifty
pounds. arr poured into a ..churn."
which is a revolving drum PLACED hon
zontally. and having within il au a,is
revolving in a different direction from
th, drum. and furnished with ciyht
rows Of projecting arm-. -" raIih -
the action of thi, machine thu; three
minute. is sufficient 10 mix tn" inyrr-
.ii.nts. II Is then called the green
,hargr," and Is ready for the inCorpo-
eating mills. where the object j. 20
make the mixture ~ intimate that a
new substance l. created. naunlv- run-
powder
The incorporating house Of Wal,ham
have thirty-two separate mills. Each
mill consists Of a pair of rIpnrr
coupled together 10y a strong axle.
Thi. axle rests in the socket If Al up
right haft. which. passing down
through the mill-brd. i connected 10y
brvel wheels with Il revolving horizon
al shaft driven hv steam or water
power The runners arr of rhv~h!rr
lim.,tona and iron. and weigh from
three and onc-hali To- four tons. Lhr
-lZr III the iron ones l. from three ana
4 half To Nrvcn feet in diameter. The
mill-b.d 81 circular vat with flat bot
tom and -loping >ldr>-i> of >tna' az
metal. On this bed fifty pounds oi tn"
Green charge i spread and moi~,cn'd
with water. AMI the mill j. st gp'nv
Common powder l. l"ft under the mill
three hours. rifle powder tive hours.
On leaving the mill the gunPowdrr
i in the form Of a soft cak" wttrh
easily breaks Up into dust Ihi- -
pressed in LAYERS between pilates "i
copper Or crum",al =" increase 4
hardness or density. AMI then mad" ia
h. tn" required form by machinery
Indianapolis 'DaaH'r"iGi Bst.''tH.
TRADE REPORTS.
4 HIo.iet Dry-t.ooI- Dealer who q. IT.