New-York daily tribune., 1857-08-24
INDUSTRIAL AND SCIENTIFIC INTEL
LIGENCE.

substituting coal for wood fuel for beomoaves-
When il is known that all over Europe coke Is u-ed as
successfully as wood s here Il Is not easy 70 under
stand Why there should be suy difficulty in using an
thrscite, but practice has taught that there are many
There are now three different plans before the puohc
and they are all approved BY competent engineers.
locomotive the Baker plan Is now buliing a, the
Bottom Locomotive Works Under the supC r.aendenee
Of Mr.. Amory, for the Prov .dence and Fall River
Railway Company. The novelty consists IN making
the flames follow curved fae, instead OF gong
straight to the chimney The smoke IL thus more
thoroughly mixed with air and consequently better
burned. There is slso an arrangement to supply the
furnace with warm air. 1t is alleged that the result
will be saving of fay per cent. The locomotive
Iryngton built at Lawrence, hsssachGsetts, aud now
at work ON the Hudson River Railroad, is the inveu-
ton of A. +. Smith, Superinter dent of that road
This machine weighs % GC0 pounds, tho drvIng-
wheels are Eve feet in diameter, the stroke is =!
inches the DO cr is 70 inches ia diameter aud ii feet
long. The barrel proper, extending from the flame
sheet 10 the smokearch is u feet long and 4O inches
in diameter. There are l79 bras tubes, of inches
out-ide diameter and feet long. Tie frebox meas
ules co by % inches, vi combustion chNaber ex.
terlirg four feet into the barrel Of the boiler. This
chamber is divided by water leg, extending from the
fro nj Cf the Ere.box 10 within 20 inches Of the tube
sheet Around the combu ton chamber there are
speruras witch are opened or closed at pleasure and
BY which air can be let in to burn the gases
not yet consumed. The consumption of cCal on the
frat trp, between New-Ycrli and Poughkeepsie
was 1870 pouIds instead Of the usual four cords OF
wood; thai is to say, $l3 % instead of $2S Dimp-
s tubular boiler int nded fo any kind Of fuel and
Il is alleged answers perfectly fer coal burning Ocouo
tves. large mGchRe Of this style was built by the
TaurtCn Locomotive Manufacturing Company, and i,
now drawing express trains over the Erie Railroad,
usrg anthracite alone. The fre.box and the barrel
form one chamber through the whole length OF which
the su oke passes escapng into the smoke-box through
sn opening in the lowest part Of the barrel near the
smoke.box The tubes exterd ont of the barrel over
the fire. there they bend up ard, aud the top OF The
furnace becomes tube sheet. With this arrangement
tie water inside the tubes and the fire outside be-
tween them, in the adopted FOR the boilers OF
the Collins steamships. The inventor claims tc have
By this arrangement entirely done away With the bura-
ing Of the end Of the tubes and Of the top of the ire
box which is the ordinary consequence ot Q coal nre
in locomotive built on the usual plan. We do
not find in any Of the machines entioned an
arrangement either of gsate or oi coal feeder, or OF
b ast TO prevent the coal from melting or from form
ing cnkers. or from exploding into small particles
which atbrougb the grae. Il Is much TO be regretted
that veIy often good invention gets bad Rame and
its introduction ia della ed tSeny Yeas on account OF
secondary detail not attended to IN due time, wlIca
prevents the whole machine from working.
LrcIuRE-RooMs The application OF the laws Of
acoustics to the building Of al opera house, church
or lecture. Ioom is difficult as it is little Known
The utmost care has been taken in building the lec-
ure room of the Smi ihsonan Institution, ana coir-
plete success has been the result. Let those
who have charge Of similar undertakings ask the adj
vice Of Prof. Henry, who, We doubt not, VIII DC
happy thus to difuse knowledge. The splendid Gi-
rard College in Philadelphia is the most miserable
failure as far as acoustics concerned The walls
and vaults of the class Of wote marble, and
it seems that every syllable uttered rebounds thoI-
sand times across the room this elastic substance.
The French Opera House in Paris is q cumbrous
building of wood and plaster, butt some twenty or
thirty years ago, ard was intended TO be temporary
1t happened to be perfectly acoustic, giving volume
TO the sounds without confusion and has been patched
up from year to year. for fear Of rot doing well wit
| a new building
HAT HoLDER.-Under each chair in the Senate
Chamber and in the room of the Representatives at
Washington there is wIe net attached 70 the four
egs two inches ABOVE the ground. On the net there
is room for An overcoat and hct This arrangement
| is worthy Of imitation.
WATER FOR BALLAsT.-In cases SINH sr to that OF
carving coal from Newcastle to London and coming
back in ballast, it is advantageous to make arrange
meLts for baas ing with water In an iron s.ea ner
is ve,y easy 1t consists in partitoning the bottom of
the hold and making it like large honeycomo. Tnis
prevents ihe water from running from one side OF the
vessel 10 the other. BY means Of the steam engine
such ballast is discharged at small cost aud in short
time The English have applied this arrangement s1-
| tensvely.
BARsIs's PRISTING TELEGRAPH, la;ely built by
Reeve & Co., is ar improvement on Houses instru-
ment. The main par:s Of Houses machines ore type
wheels v hch are made t) revove alike at the differ
ent stations so that when they are all stopped a. the
same instant by breaking the current, the same letter
s at every place, front Of the instrument Sometimes
one wheel gets in advance Of the others, and remains
so until Tut back by the operator This getting out OF
register i, obyiaed in the new improvement oy giving
the type wheels vibrating notion Alter telegraph
ing each letter these wheels come back 10 the staring
point 60 that if the machine makes an error Is Coz
| fined TO ole letter
Forsyth and Canal streets fine back dog s making
ber every day 10 the great delight of the passersby
| The dog walks steasiy up moving platform which
turns drum placed underneath and this driven by
| mean. Of crank, works q churn The name writ
ten on the machine is Anory, the cosr is go We do
no. suppose the machine i' patented the principle
being public property, and We call to 1t the a;teOln Of
makers and others as it will be very beneficial to have
.uct machines made for email dogs, large dogs, two
dogs three dogs or for goats. In the country such
machines very ing in price from five to twenty dollars,
uopN enable farmers wives to have the chufning the
,;,,, =, NJ coffee the boiling of four &C., dsne by