New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1851-08-13

/ NUmhtf al
Total number of furnaces .-..---.--..- ~
/ Length ut boiltl.---.-. ----.--.----..- 90 Ih
Breadth ~ boiler. Observation-Disclosures tn -
Length of furnace .--.-.-..-..-- ID.
Pis@ :s e I @.s 'uoe,-..--..-~-.. an. s.
J Length Of tubes O
s. ps,, ,,o !. =; .. n, !, %
Weight OF engine and hoilsrs allied "rh
F I:"sS q q Ssia:. 'o'' and &
Length of hoiier-roor ....-- .-.-.----. 20 ON
Total length Of machinery and boilers lo
Con,unption per q hour, -... tuus - 70
horse-powercf each engine .----.---- s." y"
The MogadoriS propellcdhy side waior-whess
with fixed paddles. the axis of wnich Is about
halfway from stem tO stern The shaii = Of
three pieces with crlnks 50 disposed As 20 ioHr
three elbows. The elbows on each SIDE are con-
nected with the piston-rods ofihe cylinders which
are directly b,uraih That OF the middle, by
means of levers Of triangular shape, works the
two alr-pumps. These two pumps are situated
one before. the oher behnd the shaft, So ~ t0be,
with the two steam cylinders, as the toar YER.
tees of a square, IN the center OF winch are lhs
condenser andresoWoif.
The two engines rest ON \ single b,d-paie,
10 feet inches by - feet. fhls las dimension
being parallel TO the shaft THIS oed.pla,s
Is cut so To admit the cylinder 20 pass
pant of the cylinder desCends below Deisees
the nelson's eight iron columns, crowned by
coTnice OF sheet IRON, sustain the lonr pllloe
blocks OF the shaft their vertical position being
secured by cross and straight braces, which bind
together the columns and bed-plaic> and secure
them to the ship. Fore and AT the engines are
the engine and bollor rooms. IS feet long, having
the boilers al theIrextremltIes BY this arrange
ment the hremen are IN sight OF the engineers,
and thus greater regularity IN the service Is So
cured. There are three boilers IN front aud ihfes
behind the engines. each having three furnaces.
The CRATES are nearly as large as he boilers.
The heated air comes back to the chimney BY
horizontal tubes placed above the furnace
In the common marine engine, the steam valss
is used at the same time IS the expansion valve;
here the two are distinct and separate.
The cutoff * rnads 10y a circular valve m Tho
steam-plpe, lust before u reaches he inlnnon.
This valve IS pur IA motion by means Of came
on the shaft There are three cams, by winch
the steam can hc, q Oh al three different points,
generally % 3. coz 90 n hai-stroke.
The lutrod H'tlon ard exhaustion Of steam are
made 10y ar ordinary sliding valve placed on
the cylIndcr ever connected with this valve
and having 81. icum on the cylinder, has It's
other extrcr ainiained b. guide cifcularv
curved, ana -. disposed ~ 10 prevent any mo-
ton IN the valve from the oscillatng Of the cy-
hinder. This circular guide may nc made 10
move up and down between two rods, and such
motion gives core bonding one to thc valve
To start the engine or turn n backward,
small steam engine. always connected with me
circular guide and placed above II, Is used whef
once started. the guide - connected with the &C.
centric, and by the turning II cock, the small
engine is put nm con munlcation with the con
denseT so as to make 10 piston move IN va
cum. In case OF need. lever has been ms
posed 10 work the valve by hand. Two Hisn
may do this easily, the weight OF The vase De-
ing balanced by eaden weight
Such was tie engine, ~ originally made but
since then they have connected with the Rier
spoken OF Just above the pistoD-rod oI GYM
der called 4 moderator In this cylinder, whna
Is filled with OIL, piston slightly smaller
than the cylinder moves up and down, and oy
tins motion forces the OIL 10 pass around Il ahi
through pipe which connects the top 81 me
cylinder with It's bottom A cock IN that piPeis
made Of 10 increase decrease The rcsis''
aRce at viii
This apparatus added aferwad wa rendered
necessary by the too powerful aciion oil me
small engine.
The Golden Gate is the first American steamer
provided with oscIllatlng engines Hers were
built at the Novelty Works, under the dIrect@
Of Chas " Copeland Esq. This engineer has
made use OF a disposition hitherto very I'VE
known He has placed the boilers across mo
ship instead OF lenPthwIse, and, contrary To the
opinion VI many, this las proved perfectly sue
cesslul The boilers are placed on each sIden
the shIp,-thOse OF one side facing those OF w
other,-leaylng between them A passage OF aoco'
eight feet, IN " hIch stand the hreInen. BY hs
disposition a current OF fresh air Is pennl,tedic
move from one hstchway 10 another through the
passage and the heat around the boilers IS rem
dered tOlerahle Few persons are aware Of me
number Of liTemen Who have lost Their ises~
their health from sudden change Of temperatgTs
on leaving the furnaces and every Improvement
which Obylates this danger Is worthy OF inc
hea.rlest APPRECIATION IL is also 20 he no,lcel
thai IN the Collins steamers an interior passage
has been arranged which allows the men tog'
directly ~ their berths without coming on dees'
The nominal value Of the MOgadOr's engines
$50 horse power; but we ind II 10 BE- 200, tasihs
$50 pounds, elevated one foot per second for ops
horse. power, and teGuctiDg from the total fesul.
twenty per cent for friction, working 0! pump;
&c The same calculation. applied 70 he fs.i
fc, gives 600 horsepower for each oi her wv
engines
IN a few days those interested m steam nAsr
cation will he able TO visit the Mogadof ID VIC
Navy-Ysrd Dry Dock, Brooklyn The politenes'i
and forwardness 10 oblige OF her oSlceI' -.
crew Will greatly enhance the pleasure OF suen
visit. VICTOR BEAUMONT, Civil Engin'@
Nsir- York. Aug. IL. 1851
~ Hon. Hiand Hall, of this town, u,
heen offered the annolntrnent Of tOmUieSIOI.s