The daily dispatch. [volume] (Richmond [Va.]) 1850-1884, 1871-05-04
No More smoke.
rrrom the Plstspatsh commorcIall

FETpm the RatteDhrkn aCpHlMfcTCidisJ - y.
The test took place. In the, afternoon il
the presence or q number OF eitlzens
among whom we noticed; about AZ zdn
members of councils. The invention Ger.
tsfnly demonstrated to those present tina!
coal ior slack, which was the article q 3. used,
cal, be used as fuel without permitting tsae
escape of single particle Of smoke or SCOT
A small furnace, about two and d half feet
high aud thirty inches square, was erected
I'M front or an ordinary locomotive boiler,
and so arranged that the fuel was wholly
consumed in the furnace, and the heat
and fame only conducted anaer the
boiler by means of q communicating
flue. The furnace is provided with
an ordinary bed ,,fof fire-grate. bars.
but the front is all, closed cup except
small aperture two inches wide by eight
inches long for the admission of air. The
slack is supplied lhrongh hopper, innle'
diately over the fire bed, and combustion Is
started by the air which IL admitted through
the small opening already described. The
gases in the coal arc here set free, and start
of with the draft toward the boiler, AN
opening Is left in the top Of the furnace.
about midway between the hopper and
boiler, through which strong cur
rent of cold air, is admitted. In the
rough model which we are now de-
scribing, this opening is about eight
inches square. The air, striking the flame
and mixing with the gases, produces what
the inventor calls perfect combustion"
a brilliant white tlIme is the result, SO in
tense that no smoke, or SCOT escapes uncor-
sumed. The quantity Of air admitted at this
point was regulated hy placing FREDERICK
structed furnace the draught Is regulated
by hampers. The flame is of such daz-
Zling brightness that it pains the eye,
and compares with the sun itself in
brilliancy. The heat is so intense that
| it cannot safely be applied under the
boilers directly, but it can be so regulated
that with its use the boilers will sustain
much less injury than by the ordinary
method of generating steam. The boiler
used in this test was q fifteen horsepower,
and pressure Of sixty pounds was main
| tanned, the feed used being at the rate OF
| three bushels of slack in ten hours.
The furnace, however, can be so regu.
lated as to produce as much or as little
ing open the furnace-door Of the boiler,
and thus admitting an excess Of cold air,
| smoke will issue in about five seconds
from the top of the stack. and cease in about
| the same time, after The door is closed.
This. experiment was tried a number oil
times, to show how perfectly the apparatus
worked. All present were greatly inter
ested in the results, and seemed convinced
that the invention could be applied salts.
lactorily in all our manufactures. 1t is TO
he hoped that MIR. Mckenzie will have an
opportunity to apply his furnace Mt once in
some Of our larger establishments, so that
it's practical workings may be more fully
4 demonstrated.
There was also trial Of DR.. Connolly
apparatus for conveying the smoke and
flame from coke ovens, and converting
them into gas for fuel or for illuminating
purposes. This test was also quite salts.
| factory. The fact has been demonstrated
| that the gas can be secured and handled,
but it remains to be seen whether any
practical application can be made of the
invention 4-ss.-a...sa. --s-