The Sun.
London, England, 1854-08-18 00:00:00

BOW TO SUBDUE SMOKO.

We proceed to show what opposite results have
been elicited by the use of machine-furnaces
which require motive power to keep them in action.
Taking the Juckes' furnace as the first with which
to illustrate that fact, we may refer to the very
important evidence given in its favour by Tru-
man, Haubury, and Co., the brewers, who cer-
tify that the invention puts them beyond com-
plaint, as far as the emission of smoke is concerned;
and that by enabling them to substitute small
coals for the more costly descriptions previously
used by them, it economises their outlay
for fuel to the amount of many hundred
pounds per annum. Although it appears (and for
reasons we shall in due time assign) that they do
not consume a smaller quantity than they did
before, or less, in short, than would be sufficient
for ordinary furnaces. Yet at the establishment of
White, Ponsford, and Co., City Flour Mills,
Blackfriars, whilst the suppression of smoke was
equally satisfactory, the practical effect of the
same invention relative to the work performed has
been found to be very different. There, after
four or five of the Juckes' furnaces had been seve•
ral months in operation, the trial terminated in
their removal, upon the ground, if we are cor-
rectly informed, that, with the same de-
scription of coals, they did not generate as
much steam as had been and could be ob-
tained with the common furnaces. It is not
difficult to account for this discrepancy. At Tru-
man, Hanbury, and Co.'s, we believe, the require-
ments of the brewery, inclusive of an efficient pro-
vision in the size of the fire-places, were constructed
so as best to develope the advantages of this par-
ticular machinery-furnace under slow combustion ;
but, at White, Ponsford, and Co.'s, the nature of
the business often rendering it necessary that the
fires should be forced, even in excess of what may
be deemed fast combustion, furnaces of a simpler
form alone, and deviating but little from the con-
struction of ordinary furnaces, could possibly be
made adequate to such emergencies. This,
we apprehend, derogates nothing from the
utility of the class of inventions we are
now considering (applying, as it may do, to all of
that class), when adapted to purposes for which
they may possess claims to preference. The Ma-
chinery-furnace, known as Hazeldine's, stands
pretty much in the same category, without, per-
haps, possessing so great a range of (even limited)
adaptability. By Price and Co., the patent can-
dle manufacturers, Vauxhall, it has been as
strongly recommended as that of Juckes'. We
cannot, comprehend on what grounds; for the ex-
treme inclination at which it requires to be set
places the fire-surface at too great a distance from.
the boiler to be equally effective ; and, when so
inclined, as occurs at the Stoney-lane Brewery
copper of Barclay and Co., the fire has frequently
to be stoked and fed with coals, just as if
there were no machinery-furnaces at work. And
Hall's, which we think is a better self-supplying
apparatus than Hazeldine's, and of about the same
value in other respects, but not equal to that of
Juckes', is a machinery-furnace far from being
void of the practical anomalies inherent in the
others. At Woolwich it answers remarkably well,
for instance ; but at Calvert and Co.'s brewery it
is very remote from being a favourite. Rela-
tive to price, there is not, so far as we can
ascertain, any material difference between these
three inventions. Assuming the charge for
brewery coppers to be a criterion, it will not
be much out of the way to calculate the ex-
f ease, including the patentee's emolument for use,
at twenty shillings per barrel upon the capacity of
the copper ; say, for one of 400 barrels, 4001.;
and herein they contrast very unfavourably with
the cost of smoke-preventing furnaces of the most
simple form. Grounding the calculation on what
we have paid for our own, that invention,
with -the patentee's customary royalty, may be
applied to a brewery copper of the size mentioned
for less than 801. Our furnace, brick-work and
all, came much under 201. Still, the proprietors
of the machinery-furnace patents have ample room
for patronage and profit, notwithstanding the re-
stricted scope of their utility ; and with im-
proved construction, they may increase
that limit by lessening the expense of
keeping them in repair, without adding to the
original price. Beyond which we may repeat the
statement made some time since at the Society of
Arts, of the then ascertained existence of more
than 40,000 steam-boiler furnaces, on land, in
the United Kingdom ; whilst there can scarcely
be less than that number in the vast varieties of
other furnaces, ranging from a baker's coal oven
up to a brewer's copper; and constituting, alto-
gether, demand enough, we should think, to
satisfy the reasonable expectations, if not the ex-
cessive cupidity, of at least fifty inventors, much
more advanced in successful demonstration of the
proved value of their several plans than a fifth
part of them can possibly be at present.
Our succeeding remarks will have reference to
some of those contrivances to which -occasional
motion must be given by the stoker or other per-
son baying charge of the fire.

TILE CRIMEA.

AM. By JAMES WYLD.

A splendid map of the Crimea evidences more
clearly than ever the promptitude with which Me.
Wyld has determined to cater for the information
laudibly desired by the more patriotic sections of
the community. A glance at this map will be suf-
ficient to show the importance of the prize which
the Allied Powers are presumed to be on the eve
of wresting from the possession of the Russian Au-
tocrat. It will be perceived by those who care-
fully examine the engraving that a more considerable
portion of the earth's surface than many may sup-
pose is occupied by this remarkable peninsula. The
map before us is, if we judge correctly, upon the
scale of some five or six miles to the inch. The
isthmus joining the Crimea to the mainland appears
to be about five miles across, in the immediate
vicinity of the town of Perekop. Starting from
that point in the Gulf of Karkinite, and travelling
southwards we pass, in skirting the shores of the
peninsula, the following capes or headlands—Point
Sariboulate, Cape Karamroune, Cape Eskiforos,
Cape Baba, Cape Khersonese, Cape Aia, Cape
Saritche, Cape Kirkineis, Cape Nikita, Cape Mega-
nom, and Cape Theodosia. Beyond which lies the
minor peninsula of Kertch. From the isthmus
joining which to the large peninsula of the Crimea
runs the curiously long and narrow neck of
land dividing the Sea of Azov from the Putrid Sea,
the extremity of this strange neck of land being
divided from the mainland opposite Yenitsohi by
ita eyd mentionchr ch)
the strait of Yenitsohi. As indicating yet more
clearly the extended scale on which this noble map
of the Crimea has been produced by Mr. Wyld, we
pointmvillag eo,uthtaomtlhate oabisiedrver each indivintduhaalmcilteyts, tionwhan.,.
that there are distinctive marks to
great road,
acrnorrawoall
mill, river,house, anew
road,a monastery, ery
lighthouse,,
wfionrdtm,
windmill,
post road,
and detailed plan of t'hae,
moreover
! In one corner of the
broadsheet, vser, is introduced an excellent
chart or. the Blue'. and Lu another is u, masterly
topol. town and harbour of Sebas-