New-York tribune., 1842-01-01


------
some remarks aPen me peculiar pio7stief .e DC
fused with bar as N consequence Of the incle-
rency Of the evcnns.=cw wcre pfcssnt, will
agsin advert 10 the subject. riie wheel has
tsrsa resemblance % the -crew butt. iias none o.
rs sconetrlca or mathematics! pvoperues be
Cst distinction 70 &c noted Is, that tbs propeller
Is intended 10 De s'io-aGleeus MS Nlil=sIto'v Il
10 be worked as q SAILING and steaFl z"csSct 81 the
satnc=t'ne. whlch=is not the case wiih ta9se n
common uscz@i-r the 'vind=In the safi cereealrE
the shnto one side the Paddie,wheoi on The ot!lsr
Viii be out at the water,=lhe common ra6cic-
wheel i also subject 10 great inconvenience !rcla
rough sca wI.ici Is cn;irely obvsied in this case
Thai there was no lateral sctlon=tu b. a.
pretended in this c,sc. involving loss OF i,ovSor.
Dr.. Lardner~howed BY beautiful expsr' -11cnt. III
which Tie effect Of n=taPId motion OF the whcsi
Upon The ar, winch answered iil,tced u the 'vAr.
was exhibited
With respect IL the oiist branch OF t1t,=su9'e1t
announced Tor ih's evening, ,latis merely nav
ttnc TO notice tcw oi tue historical circumstances
connected WIN the erPacatlon ol team sii'tss 20
In't"ay purposes lou afe ail s'sfa= isiei me
power ot Tie engine dspends M tha-lo.d whiett
The engine hes#tHen the raii W hen tnes"isci
resting o:=.tie raj !. turned about. our OF two
must slip and tie cnsiae remain Stationary. OF ii
the ,,ii.e hs, .utiticn, held upon lie ra5 tIic
carriage wi;t=jt- train ns.Straovr forward. -
curious that iac so=ifateriai rs tts: TIE vhegt
aS a hnid upon lie RAJ ~il2ad Lax, hcenso'er-
ooke. bs=cfelneers aile. ti'at torias1y yeer' tif
engine should =lagC been rnappiled - Tsi4.ayS
merely ior=,he .up0cscr want OF such a holi. Ii
was supposed TO b. 1eccs >arv tfai. in prieI ~ r;yc
any pomerzio In, wheel, il must have cr.ta;.,
r,urc.ase: and a. 1onc was, seen, thev concl;4ed
;her- could - none It'.syerc cli,ercf their minds
~ a,coriain bv direct, experiment yehcjher=t.ie
wheel md any such purchase 4 Thousand coett,-
vlrccs devised 70 afford s-nie#h0id tor tho
wheel upon The rail Oac wasto make teeth the
rail and the wheel. and another person pvoposat
to make pair OF mechanical legs which should
he placed tir one before the rtter and thus cna-
hlc tho carriage; 70 walk Oh Ike apy bi7ed These
are only TWO on, Of yrrie,i> expatijens su.-
sc.t.cl Al last ii occurred to some orc to try
whether n single carriage, night moi he drawn over
The railway by he pressure or the wheel upon the
all and 10 ms cieat astolislfnent he found that
senyxgl mad been diIsrea,ly rlsde for many veal.
ior that of wlliclI there WAS no reed
When IN. er,one- y.I. FIRST a1,nie5i 10 r.o trans
,or,afion Of n.ss,oq,r- in t,3r,n,i. Engineers na
.,,,ll na,IgI, li,.,e tteir attef,i,l 10 obraiainc
t.
IDENTIFY de7ended u2on rh.lrate nt,yllah water cot
30 cyaporated. the problsrn bscsgns how TO evolve
FROM, lir1;,cI furnace #aS Great hcateS possible
ori how. ~ nrod,r, sufficient ,r the t5rc. as
,1ll .);,,rs,'s=,,s,a ,,;.sihl Th, sxpedj-=
81 m ,,o,a= ,l,..s,. ~ furnace was p lara1
he nd =sncine csl,i IN. ,rsrI.c. closed upon
every side. ana the air winch ul,pl,e combustion
rose between the CRATE bars. ha fuel used Il"
most rapid il,yavs in England i, netting but tle
es,coke. This IA pu, into.a high state oi com
hnstion. 80 active. indeeC iha. when The door OF
the fire place is thrown open The scarcely
bear the spendor Of the blaze. Now ,se heated
air il ii were suffered to pass immediately into the
CHIMNEY amt there escape would take away with
il large ouarti:voi heat. In order, then. TO make
ii linecr in contact with the water uniilit gives W
all the heat which car, be extor,ed from it this eN-
pedicnt was proposed bv Mr.. BoorH, Treasurer II
thc Liverpool ard Manchester Railway. who had.
for some time in the ear part OF h. lie. bccn
merchant and whose knowledge OF mechanical sci
encc had been wholly Se-acquired. In a locono'
tive asad to transport coal, large metal pipe was
carried from the fire place backward and forward
through the boiler and then made TO ASCEND the
chimney: the heated air thls had 10 pass through
and return. giving rncunmc its heat to the water.
| was soon evident however, thai this waS iust.t-
,ir;on, for the pnrnosc and a prize II !. 900 or
was proposed by the British Govern
men, ;.r the best method OF saving the heat Scy.
era, nlans were offered and the one adopted was
rho irsycrsipe tho boiler with a crear=nun5cr OF
Iubes which werc a, first some Two or three uchc.
in diameter. but were aftcrward reduced to from
one inch to an inch and a halt These tubes nre
from 100 to 100 in number s7d the heat .raversnS
them is mpartcd to the water.
But it was soon found that By this arrangement
the draft was Insufficient ,okeep up an actvc COM
hn.,ior; and shall now mention a circuq-iancc
.b;rb Ike a Thousand others shows the irnport-
,n,.. i, ea,ii 20 i,,nortant