New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1850-11-23

therefore We're the steam conducted from oolief
through Il tubular heater placed in smoke box,
which heater in such well regulated heat would
outast the boiler, while The steam converted to
stame without expense would be sc increased IN
volume and efficiency that tWOthrrds or more OF
the fuel and water now consumed IN locomotives
would as well serve for their propulsion at pres
eut speed or by suitable arrangements be pro
PEELED with fewer stoppages and vastly greater
speed or power by the combustion OF only their
present amount OF fuel.
AS desirable will be these Improvements, as
shameful and foolilh will become their neglect,
when the importance and great number OF En-
gines are recollected for the gazing OF which they
are susceptible is immense, and the corresponding
credit of efiecting it more immense and should
rebound to the honor of this country, as 1t would
do If not hindered by inefficient theoretical block
heads, and might be returned to England as
small and grateful acknowledgment Tor the Steam
Engine, Spinning Jenny and Power Loom.
Next. Steam Coaches, SO desirable and often
attempted on common roads in England by Cur
ney Hancock, Church and others, though unsuc-
cessfully, may now be certain Of success-by
using stame instead of stean-for if those coach
IS could run RS they did with their limited pc yer,
others of similar construction, deriving four fold
power from the same amount OF fuel and water
could not fail to answer admirably, and the inces
SAINT attempts Of gricuturists to substitute steam
power for horse power would be as wonderfully
encouraged and promoted, by finding that steam
power may be quadrupled by the same expendl-
ture of fuel and water in high pressure engines
supplied with steme.
Again if these coaches can travel on common
roads, what can hinder such coaches running on
plank roads, and successfully competing with To-
comotives On rails, for running as smoothly on
planks, requiring neither turnouts nor switches SO
often misplaced, and misleading to the destrQc-
tructon Of engines and life; which awful contln-
gencies these coaches are free from, and ought to
be introduced, and might be- with profit and pub
lie advantage, if only limited in size and weight.
Then let it be further considered how much the
general convenience and prosperity OF the lnhabl'
tants Of cold countries may be promoted by the
use of stame, in a manner and degree hitherto
unexpected and uninterrupted, and otherwise I'M
attanable by the present comparatively IMPROVE
dent use of fuel for il the quantity thereof now
daily used for domestic purposes were employed
to prOpel small steam engine, 1t would be found
insufficient for any useful effect, bat converting
steam to stame, being in fact tantamount to con-
vertiDg one pound OF fuel to four pounds, the
quantity now used for domestic purposes being
thus quadrupled in efficiency, would be found sut
fcient for the production OF general highly bene
fetal power.
Then again comparing the peculiar properties
of stame with steam, each escaping from high
pressure Engine, steam will only boil and warm
while stame will bake roast, boil and warm, 80
powerful motor as steam, but incomparably
more useful, because after stame has propelled
machinery with fourfold effect it will still serve
for every domestic purpose, and IN many cases
better, more conveniently and Tar more salubrl-
ously than fuel, now employed for domestic pur-
poses alone and thus double the profit that has
hitherto been derived from domestic fuel may thus
be easily or better realized.
Every Farmer may thus obtain constant cost
less power for performing the laborious part OF his
threshing, grinding, and other wearsome occupa-
tons, and while adding to bis ownpower the cost
less willing force of Giant-his family by ex-
changing stove heat and noxious gasses for salu-
brous stame heat, may exchange pale faces and
headaches for rosy cheeks and robust health
The inhabitants of cities may equally obtain
similar advantages, by similar means, and obtain
an inConCelVRbe amount OF COstless force and
will peculiarly increase its value at home, when
employment is scarce and labor is superabundant
for nnumerable, ingenious and profitable pur-
poses, and which could by no other means be at
tempted, which costless force, hitherto unseen
and unknown to Engineers cannot be estimated OF
less value in New-York aone-than the power
that fifty Croton Rivers devoted to that sole pur-
pose) could furnish during half the year, and this
costless force would continually increase with IN
creasing population, and thus the Onerous expense
for fuel may be converted into active comfortable,
and lucrative employment for thousands who now
ianguish in uselessness and wretchedness during
the tedious wintry months
MI Frost had working model Iii the room, and
gave actual experiments OF the propositions which
he advanced.
In September last Committee Of the Amer
can Institute made report twrltten by Prot
Renwick) upon the discoveries OF Mr.. Frost. The
conclusions OF that report are IN the main iayora
BILE to Mr.. +.
Having seen the thermometrical degrees at
which steam, apart from water, is expanded by
heat into larger Volumes it becomes important to
learn the actual quantity OF heat required tor each
expansion and the apparatus represented by the
lecturers diagram, will show, first how small IS
the quantity OF heat required for doubling volume
of steam apart from water, when compared with
the quantity OF heat required for forming second
volume of steam Of same tenson-and, secondly,
shows that heat in combining with steam is sub
iect to- and controlled by peculiar avs perfectly
distinct from those which obtain when heat COM
bines with water for the formation OF STEAM which
REQUIRES equal increments of heat for equal mere
ments ofvolume, while on the contrary, when steam
apart from water expanded by heat 1t IS not only
doubled in volume by comparative trivial quantl-
tv ofheat butevery additional increase OF volume
is obtained by still smaller and rapidly decreasing
Indictment OF heat so that the greater the decrease
of volume the smaller Will be the quantity OF heat
required for that latest volume, and although tins
is go contrary to the general laws OF heat and
therefore So adverse to common apprehension the
diagram and table will not only show 1t to be a
chemical fact, but will furnish the easy means tor
any competent person to verify the fact, which
must be acknowledged to be Of the first import
ance for, were these facts understood, the present
cost and weight of apparatus, and of fuel for the
production of motive force, would both appear so
extravagant, unscientifc, and Wastetui, as was
the use OF steam for motive force, before the days
of Watt yet at that period as at present, engi-
neers conceited they fully understood the subject,
soft atten,pted-nerer reached,
Though it requires four times the force for dou-
bic speed, it is evident, that were the present
enormous rate Of fuel consumed IN steamers Judi
ciously applied, it would furnish abundant power
ior propelling them at much more than double
speed, while the consumption OF fuel for the voy-
age would OF course, be reduced to much less
than one.half
This increasing torde obtained from decreasing
Quantities Of heat applied to steam apart from
water, not only proves the prodigious economy of