The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1897-05-20
THE TEST A SUCCESS.
CANOPY SHELTER REDUCES ORE AT
A PUBLIC EXHIBITION.
n Fwvus~~ which Can &c Packed ON
Horses 60 Every Ntn~-W hsf Its
Owners CIain--a Concentration
and Tramwny for the MSntexn-
wn-Hs~h strike ON the SO. Louis
nj ssIvrrses-

The Canopy srnelter. on the perfectsng OF
which r A. Vaughn has been WORKING for
seven years. ard which. ffs owners ana
many miDiag men believe. viii reyofuts7a-
sxa mining III this state, successfully stool
q pubic test IN Serth Seattle yestsra&y.
The test was witnessed ~ about ies H1sn
Interested IN mining. as investors. en9a-
aeers. assayerz and prospecfors. and
proved that the experimental plant. Win
Z capacity Of Eve tons IN twenfy~focr
nours h a success In practice.
The Object 40 which Mr.. Vaughn has
been aiming is 70 build su1eifer 50 small
and simple that IL can b. packed On the
hacks OF horses for long distances into the
mountains and ereefe<d at the mines. He
wanted such a sneltey 20 freat iow grade
suspbide ores at the mines without using
any fuel except 70 start The Ere reiJsns
upon the sulphur which they contain 10
keep the Ere going and sustain the heat
The fret requisite for simplicity and port
ability was to do away with the water
Jacket. which has hitherto been necessary
20 prevent the lining OF furnaces from be-
Ing burned out. This IL a rather cunaber-
soune and intricate part Of the older fur-
naces ard has hitherto been a serious OBJ
stacie 10 the transportation Of smeiters Tor
long distances over the trails For non
euipnide ores he had 20 ind a cheap ana
easily portable fuel
TO prevent the burning out OF the fur
mace. Mr.. Vaughn adopted a mineral found
Ia the Cascade mountains, which can be
either naked into plaster or nodded into
bricks and with which he lines his fur
mace. The popularity of this material IL
that. instead OF expanding with heat. II
contracts and will neither crack nor break,
growing harder as the heat Increases.
The temperature required for fiuxtng Is
4 0oo degrees. and this was attained yester-
day I'm short time with no I'll effects.
Where the ore il nofl-sulphids. or does not
contain enough sulphur 10 act as fuel. he
suJecss gas generated from gasoline. This
produces an intense heat IN shor; time.
sufficient 10 sfacit any seif-nuxing ores, hut
nos so great as 10 osirr out tho furnace.
seif-fiuxing ores, according 20 Mr. Vaughn.
are such az contain from y 10 q per cent
copper. OF g. 10 " PEI cent. iror. the per
eontase of iron required decreasing In pro-
portion TO the higher percentage OF copper
In ores where both metals are present. In
applying tbe process TO lead ores. the pro-
portions OF iron and sulphur have To be
considered
The experimental furnace with which the
test was made yesterday IL built Of brick.
surrounded with sheet iron 10 hide the
ronghneas OF the structure. The body OF
the furnace Is four feet In diameter and six
feet high. including the legs. From this
rises a smokestack twelve inches In diam
eter and four feet high TO the elbow where
II turns to pass out of the building. and In
the side Of this stack Is the door through
which the furnace In fed The lining of FIRE
brick iz pisstered with the patent fire-proof
composition described above. cold blast
IL furnished by blower operated by an
electric motor. and enters through tuyeres
sapering from down 10 IL inches where
they enter the furnace. The gas for fuel Ia
introduced through as-inch pipe. which
enters through the tuyeres. and Is fed from
a tank beneath the floor. At one side near
the bottom, h the vent through which the
metal r. tapped into molds. In which II Is
east into ingots The furnace has been
erected In the rear of n storeroom I'm the
old Bank OF North Seattle building at the
corner OF Battery street and First avenue.
and power Is furnished by a threc-horse
power motor. although only one-horse
power is needed.
The crowd Of onlookers was kept back
from the furnace hy ropes when Mr.
Vaughn began his test nj o'clock yester-
day afternoon. assisted by E. G. Byers.
general manager of tho company. Before
the furnace the floor was covered with
piles Of matte with which little lime
stone was mixed and with piles Of coke.
Mr.. Vaughn threw In alternate shoyelfuis
OF matte and coke, set the blower going
and turned on the gasoline Then the
furnace began tn roar. lie soon stopped
feeding coke and fed nothing but matte
For thirty-seyen minutes this operation
continued and then the vent was tapped
and stream Of molten metal poured into
an ingot mold The vent was again
closed. more matte was shoveisd In. and
In thirteen minutes more another ingot
was nodded. After several ingots had
been thus cast. crude copper sulphidc ore
from the Copper Queen claim near Index
owned hy the Lost Creek Mining Com
pany. was fed In. The sulphur in this
ore being sufficient TO generate the re-
aasred heat the gas was turned OF and
the spectacle was presented of ore fur
nishing its own fuel. More ingois were
cast and the furnace was proved prac-
teal as we'll az theoretical success.
The advantages claimed for this furnace
were thus stated To the acknowledgements
representative by Mr. Byers:
TO erect a plant Of ten tons In twenty
four hours al hts mine. a miner would
have Go pack in about 80 fire brick for the
lining a furnace bottom composed Of two
pieces Of iron Weighing about sixty pounds
each. a very ilght blast pipe in sections.
and tuyercs Of the same material the
patent material for lining which would
he either in four cans about the size or a
flve-gallon oil can. II /, were 10 De used
as plaster. or IN the shape OF 30 bricks
blower. three.horse power electric
uaotor and q water wheel II the ore does
not contain enough sulphur. he weuld re-
auige gasoline in nve kallon cans The
quantity used wlll depend on the eharac-
ter IL the ore. bat the cost would be small.
for We shall only use eight gallons IN SIX
hours this afternoon. The miner win
build his furnace % the rock found on the
ground. line X With ere brick and with
the patent brick or plaster. connect his
blast pipe and gasoline pipe. connect the
meter and water wheel and sc, the ma
shiuesN going. As fuel 60 start the Ere he
can use either charcoal or wood. All the
material that vii ~ required from cat.
side wili weigh from t.sso 90 s.ooo rounds.
ana can be packci GA ten horses or hauled
"a u single wagon load. \ ten ton plant
viii cost s. 90 in Seattle. exclusive 81 the
power plant. and the company viii set Il
NO and guarantee q 20 run. Mr.. Vaughn
estimates the east Of reducing q ton Of
suiphide ore az 81 and II woula be pro
portieaatcty less for larger plant This
plant Will save the cost Of packing or
hauling ore eat 81 she mountains 20 the
railroad. the freight ard smelling charges
and the building ~ costly Wagon roads.
The furnace produces matte ready for the