The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1850-02-09

tsrpal there two general kinds of tubular boilers
those called locomotives and the Mott or Montgomery
bolers-the latter having the water inside ths tubes
the former kind has IL outside; the strongest form
boilers cylindrical other forms used With safety
when the pressure Is adapted to their form; the
strength Of boilers s best tested by applying steam
or hydraulic pressure The witness on referring to
the map Of the boiler in question, said / found
Il to be an inverted arch in the bottom. which
! believe to be weak insufficient to sustain
great pressure the effect upon boiler to lie by un-
used 70 not ,sriou; properly protected BY paint or
amined the fragments Of the boiler In question; I
consider the explosion Of the boiler to have been
been burned or Otherwise injured previous to the r.
plosiop the fracture appears to have commence ct
the bottom or inverted arch the shell Of the boiler
beirg rent longitudipslly and nattsnsd almost into
pears 60 be good should think ffom tn. tSicfns.: q
Of the she'll part that It is adapted to pres
sure OF twenty thirty pounds to the square nch;
some parts Of the boiler appear to be sufficiently
braced to carry hundred pounds to the square inch;
the bottom being In this much the weakest part
Of the boiler as shown by the Wings the iron does
heated, there would have been scale on the surface
or II would have been what Is called oxidsed on those
water being too low do not know what pressure the
boiler was subjected to at the time Of the explosion;
when boilers injured for Of water the parts
over-heated are much weakened and the failure gene
rally commences st those parts the fragments the
exploded boiler generally exhibit evidence OF fsct
do not consider that the boiler wa, used so freuusnt
by such use; / do NOT think AZ necssssrv ~ s:.nms
the Of sxposvs gas Is necessary to the de-
The Coroner here read to the jury the testimony
of the w,tnesses IS far a. hitherto given and trans
Question BY q juror~n the preseno. Of .xu,o.,vs
gas did net cause this what did The juryaan
wanted to have definition of explosive gas Mr..
Stilman, In reply, stated In substance, that
weak place in q boiler would only let the water
escape, but generally weak shell would lead to an
explosion. An explosion is . failure Of the boiler
producing concussiop witness has kaovn boilers
to become weak and soft ss sheet Lead he would cali
Ss boiler Vas Sss Ths usv S,rs ..sas% oo'om ?,
ths Sissr.r. of ~. ho.r s,S ;; ss-sI t Sknn Hvs
meas nsysr before .sv bosr Su;lt Of thps .h.ns
an inquiry by . Juror, Mr. Stlmsn said ,hst tbs az
pssics Was general It va. all in fragments, the sspla
Zion - ros o.tnr 20 r. .,,, - ~ @ .ue esp,o
the numbers eyes TO dcsignste boiisr. refer ~ ,h
vii constrnctsd So,,sr ~ ths a,s.ta,s 20 G
,hios.,,s would bear 100 10: pressure before would
omt I'll, h 100 ~ :. - W @ e sno ssou ~ sne ooe.om
II. .qs.I. inch; the best Of boilers can only carry
.yorr..s"t,o~ h.~. .o,x ,,... ..,..,. a. ...s
tyysivs nd tbs tsndsrcv Of the syissnc, A. Srswn
ths ~ .o .sopar;. s.;n.t ,s ~ ' sss
tAst ,hs ,,rsngsh ~ tbs ssnc,os "snd v oapn m ~
powers Of any boiler vh.ts,sr 70 sustain tina. the
cient n snitsb,v spnbsS 20 have IiftsS nm sI, Ns-
Yors ei,y rom Il. %pndst,on. N ny -" "'"
III.nnS - a. rs,,ss.t ,h.t - s,.aru,h 81 A..
hoiis, con,a hs.s rss,sn,.d -. 1a,o.,o ~ .S 'ue
akpsss Of anv psrts Of the boiler eapd bsv,
os tns a,sis; ie,, ~ ssam a.ons ana nav IN the
team vonid h..s rsrt shs ho,is, A. ,hs s.n no,ns
md would have escaped into irss sir-shsr,fors
hs pn,v.rs.itv of th. n,o.ion tsnd. 90 nra.s a.
yooanss. ~ The hoi,sr p'A 'N' '" P'''e '"'
MIR % Fanshsw' printer. Of Nassau At vas En-. mart
,,sn..s .s,,.S h n,a..s 80 W sn, 49, nsts
ns fsr .a.,s snaw go,h,ns ~ ~,
trs eresnt thst ths hoIsr Vas rant to atom. Nv
rreat and sSpapains mover within has need DR. Nots
boers for tvsntv years thew ar. similar 20 thi, ons
md have aivs1s safe In the tvsntv yssrs vis
ness be-, used only two engines made by Dr. Mott VIZ
sos.r v,tn.ss ~ ia esrti., ssnossono ~ tuss,
burstine then he has hsS nsv tuhes in
.srtrS; sst In al sis sxpsris.s. 90 msa mas ever
much a. his gsr the tubes are the weakest
part Of boiler; in them the steam is generated the
smss are always playing upon them vitus,s believes
night and rhsS the n.s 1.r. on
Monday morning gas was generated, In the absence
Of sufficient water, stronger than gunpowd itsslf
By Juror-whst is the reason the tubes Of ths Mott
boiler become weak! Witness found the nat boil
boilers Which he found to be th. safest; If there
IL explosion Of these boilers IL is only occs-
sionally Of . worn out tube; these boilers used
pososs at least; they do harm merely put out the
IRE and the tube sreplsced by tube In the time
a. ,ssn tub. s,bout oSos VI. S n.y.
airs Witness answered by referring to Perkins
Experiments, which shov that explosions are not
ton OF gas, believed to be hydrogen gas; witness
never knew boiler to explode Ike this, when sup
pueo Win Weter
Mr.. Murphy, OF the firm OF Pease Murphy, was next
practical boiler maker resides at
2s2 East Brosdsayi has examined the boiler in quss-
ton and believes there was plenty Of water In the boiler
when exploded he thinks there vss tso great pres
sure OF steam on WAS not built BY witness he no.
In OF this Kind Of boiler from the weakness Of the
valve In reply TO juror, witness said he never knew
OF 2 boiler bursting when Y Was well supplied with
vsssri he never heard Of such thing.
To the Coronsr-This engine vas not large enough
to propel the machinery to which was atacbed docs
not hsevs however, how many horse power this engine
was o.
Mr.. Julius bulkley was next sworn, and examined
Resides at lSO Orchard street; practical ensnee,
which he has bssn for the last twenty ave yeArs Wit
ness was Intimately acquainted with Jass Crssyeng'
neer OF the exploded boiler and nov dead by ITS expio
sion; witnsss did not think him an incompetent mau
ne Vas very sober man, have heard ne ran an engine
seven or eight years In that same shop witness had
conversation nth him on the Sunday morning about
ciook M; vitpess told hin (he vitnessl did net
think the boiler sucienty strong to bear the pres
eue vas not sae 70 raise steam TO 200 lbs pressure
to the square inch Crssy said IL would stand ~ VIE
ness said u would not; told him would not Ike 70
run st 100 lbs pressure on the square inch witness
he'd heard that the boiler had been south had been
used ON boat, and found ineufhcient and then mad
been long time exposed and corroded from salt va
IL H Al and f~oru