New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1871-08-07
THE FERRY DISASTER.

MON1 OF tAiEhAo'
rl,o ;nouirv into the cause OF the Westheid
,,osion was continued Saturday by the Board VI
stsamnoa, Inspectors Several experts were eNani'"
md their testimony, asusual, was very ccnmcuns
"ENCESs PRESSURE
psvd Anderson testihet-I am prac'ical enEIu'o''
mt am not lust now engaged in that business h">o
constructed boilers hut have had experience ABOUT
,be for % wears: seen the exploded eor OF u"
Wcstaold examined carefully; the explosion was not
ne m nv opinion. the want of water because the
ven covered with scaly portions 1l st " in would
& ,reJ these salt scales OF believe The explosion
was due tc excess of plessrrei u"n hmt 'rom
1Irch lie excess OF pressure was, uuS nun s
ms IL must have been enormous; the bOeI SSs
~ sbcts and keen them their places; these screw
.f.y bolts in the back cn0 RESIST inc SsV -
mons nom the tact that these stay bolts are st et w
Ihe irou: now speaking 81 lle n'cN an VI
~ aneter az these stay bolts, but llhk. Wy
we've one inch and half; 1t was no aeuInrnt ~ Wy
,,iCr tbs they were large; u was an improvements
aso think that the pressure was chorhlOds LOIn 'o
- t.t lie two ends OF the boiler were wtenched lore
va, ", h5 IL ,iysn way i'm the bottom there could not
NJ. Moon lur,e enough To throw the boiler Out IN inc
M ~ - tbere; DO not think the expansive force
~ 0uG have acted in this way If the breaking Lau
ar, occurred SIDEWAYS, so 70 speak -. 4, ,-o,,r
q Row much pressure might there have heen M Hop
Judgment upon Tins boiler al the time 81 the eNlioon
DONE think 90 pounds Mou50 nave o'C nov 1n,ch
~ mere matter Of guessing for me 10 Sy iar4io -,
pressure was actually cxcrted 10 overcome lne nr' W
sNst mass such as this ana throw into the QosHVn "o
f Won have some definite idea az the pressure that
there might nave been on tlaI hoert tit tbin
fo pounds would have been too lille TO cause such
90 Win slch boiler now much steam pressure would
you think % SAFE 70 MoIhn a. = ~ atSr, thS bocr
gould have had hesitation In working MP 10 p pounds
and m any sudden emergency would not nave pSch
IG 10 .rrv more than pounds from the appearance
q. TIE iron at The present time Junk ne unIgr MN
nave withstood greater pressure trn p pounds mn
,NouI uol 20 lave put on greater sdh 'h"h %
lr vol, examine the furnace OF that hoilerl A. Yes,
e as wen could; there were lev pieces Ci CONN,
eut tnat was nothing nhHsH 'ho &c anu 10y ,n \
condition she water spaces old not present me s,le
hal m inch nuged =. here and there, bat thai Is nothing
Uuu,. boz boilers there II not peliect
al -.. liNttiug the s0yhults Gshttt- are drawn
r che iolfs but ii the ruieine * caused nv heat il
occurs n the middle between the 0ot-; thought the
ii.ltacs, looked remarkably VOL
@ Do yoa office the edges Of The fractured Sheet and
oi ne boiler from which they had been tlkeni A. ]
1logeHt the iron looked except down at ne bottom q
small pant oi The shell, as 10 il had DE- en- 'vld ana s0Ou
81 was not hrous iron-HoTc Cysali7, d. u the Iron had
f1touS the fracture would NOT have looked 50 clean
teusiic strain 10 the square nch some iron VII stau
1000 pounds the iron ~ us poieI 'A wTS
toVOJ pounds iron; The innate sltLtlh 81 ZION "S ho''
think. much TO do win nus case; Zoe, t',,'t We
GcnCye Mr. Tairbairn tToecisDths ia p3le
NOV the crvsazed appearance of The iron that II was
weaker than IL had been toIoJs; Low Moor OF LOWING
mS has The aTTcST1Hcc Is if me f6crs were inter
laced with each Other: have never seen piece Of iron
al ths kind broken on the anvil; think, however, We
have American superior 70 The best EnthSl non; IN
lorer Of bowling iron II viii cut Ike piece al silver
II viii leave a liner and more ,iNery than clys
tsUC iron: crystalline iron after yen DaEe cut II WIN
clise' has rough appearance; crystalline Iron when
fractured uoes lot present the ~ peaa low
Grade Of steel 50 far as the particles look. $500.
maze would not the heat have caused slight bullying
81 the surfaced \. No, Sir because the hea, would
have been di,sipaed 80 easily; ny opinion u that The
fre woG.d have gone out instantly.
q Did you see ANYTHING like fracture in the ron :
NJ, Si. / examined the iron nc Ponce Headquarters
mat piece looked Ike had iron ana though iJumatei
ibid not notice any very hin peees The worst piece
-w of tie usual thickness but looked as {noue,
'ho PARTICLES had never been properly rolled together;
DOM know what part OF the boilr that p'Ce was taken
~ nuTsr NOT An IxpLoHoN"
Charlie II. Haswen testihed-I avn On euciuoer have
examined the exploded boiler OF the Westhed saw II The
,crpuc after the rupture The then of this boiler,
normal condition is plates 8Ed edges equal 70
longitudinal stress OF 80 pounds ana OF tensile stress
cf % pounds per square inch the resistance 10 stress of
~ lis stress II matters not thcu how sufficient IN,
greater portion OF the boiler &" Withstand the press
required of IT, provided any one part =" u vas 81 III
tuiecat s.ren h ono Of he laIs % Tue crown Qi IN
boiler for it's entire length shows cIl stained anu ia
mated fracture, ana Tor 4thSlH o. one 100
that 10 las been cracked Tor long ~
average Of bat one-sxtecnth part Of inch shor
crack Of five even nine inches, may exist IN q
boiler. yer from the rgidty OF the annexed parts or
from rs beng line OF its greatest stress It NAY
uc involve an extended rupture; It is an e,4encc ina
aud the time of tic rupture the steam gauge ina
.',ee ~" ~ ~ - tren er,1ed yitr paicr. mon thai
point there be question: with these clements be
49, lie result Of Irlt ana not an explosion; tia; lie,
IN. boiler gave way from pressure gradually hecoin uG
surcrc 20 ne re-sIcutt, ana not 10 ule luinr1lae
generation OF consequent upon snperhodtea steam
Jueom.. normal steam by the comniNtme OF WAFER
fIe !. clearly a.d positively defined 10 have been al Q
longitudinal Zap upon Ae upper pCruon o. me poHy or c
E, a. tie boiler ana at ABOUT ne n!lIc OF 4's emu
aud ID, tensile STRESS OF he ron compute al 800
IounG, ne square inch OF Zoo tVp 81 ien
stress 10 lap at which THIS boiler ni't rptued was
Ii g pounds tgIC,OxlIcAz The rigid support. however,
0cd 90 withstand greater stress lhdt tAls noitI
pounds D. perfectly practicable Thus, a. cod If :
and ne scrrcG edge O. the fracture Ie.eiTed 10 would
~ drawn tos. thtT gn" g.l'c ,uport ~ lh' n'llc
do brt whom tie shell di,tonded by heat tbs
was al, showed and the resistance Therefore,
tbe operation Of the existing Steamboat set. as u Is
termed an convinced mat win old bors. the pro
ilnnId he reduced 70 two)ird-, and even one-haf 10
so' B S. ,5a nean 70 ay Hr at 6o5 might have
e1poaed AZ twelyseIen pounds gIe', sur A. In my
Of water in boiler, because 70 many persons were
O. Wcnld NOT the steam have also sca,ded as many per
,oIe "a hot water 4. No Sir; because steam al llci
Temperature loses ~ temperature very rapidly lope
die rom nhans steam isey are suidSi,.,y bg@d g.
cane 10 have scadrd by - temperature can sly
Sim ana NOT he scaldcd We know that steam may be
made very hot and come down IN paIucies OF Zee,
liater and come down sin hot; iu eAplo-
iou Of mis- kind the water would follow the current
al the steam: there a. another reason why there was
MONTY Of water the fuc there j. rdLgc OF OK
ida0n nv heat IL there thDc woud De indication,
OF H. being burned call II believe the crack
took place because the iron at t1a part was very tady
wOjEcG-iiupCIiCctly rolled; when saw Tie FURNACES
Tho morning after the explosion they were st warm
O. How long have you been IN cDgne'rf A. IClF-
three years know Hr. Matthews. the INSPECTOR have
Known lin for s. wears: my opinion Of Mr. Mathews
sc0urpUcnt. makes him a very capable engineer; be
served his time mach ueshOI and he has had great
C1perieucc al running marine cngluos; ne has
6iled very responsible positions.
q. At what pressure do yOu think thl- u0ilcr Womb
have gwen way A. At very little beyond what y was
tested for; at 40 pounds think wouldhaNe given
DO not wish that the hydOstatc rest should be carlc
higher boilers grow old the steam pressure tE"td
IL. L. L.. -.