New-York daily tribune., 1865-11-10

bio to 10 jury in that form. Prof. Hazwel 'n'h feaa
'Y have Examined the rupured boiler OF the steamer
St. John gaured the thickness 9I Sne ~ hat rdint Of
a r,ra 1onsi IN diameter Of 156 inches); the gauge
of the plates is No. Birmingham e!na 70 nasn
och did not detect any eyGsnSfI nf s rupture in the
contrary. am satisfied OF this being one OF lne ne
few cases of boiler being rnpturea pJ onemtn
force from an excess Of steam win 'hc P.ope asst
level or from an nsunoency yor I SyeIcnt to distin
0ush the force from that Of collapse, rs tnc
OF the internal fines Of boiler are more frequent iio
the circumstance OF tne 20 cosOsns bong much
less than that Of It's rupture by bnrstng the tehs
resistance of boerplates when single r.stru s m
case Of the part Of the boiler nndcr
from "a 600 TO 26 900 pounds per square inch or mean
of 30 900 pounds estimating imperiectlon oi plates anu
workmanship and loss of elasticity by extreme iensoD'
10 reduce ths valne balfOr 600 pounds-tho re-
sstonce of the plates at tho point OF rupture wouid
bs oxlsOOOx osf.le6=45.s ib per square men, as
the bursting pressure. which resistance is COT
roborated BY the test pressure 10 d State. In
spectOr; from tho examination oi tho ruptnfeu Pa'
dslocatlon and connections am clearly o the consiG
ton that the ango ofthe plate whore II cohbec.s w
the cylindrical portion OF the boiler has been Dpped or
fractured IN turning IT, and that the npping or Irac
tnre has been increased by the alternate expansion anu
contraction TO which TINS portion OF the posi FL.
posed being greater than that at any other portion Of
and that finally IL has become unequal To resist tue
sure TO which submitted at the time OK fture
that local defect existed at this point Is concsme
both from the ability otbe plates upon the
portions the port side Of the boiler and upon Inc o'
boiler to withstand like pressure to that when rnp
tured one side without any indication whatever
have seen the contract entered into between the own
ers OF the steamer and the builders OF the DOuers nDd
the owners took full If not unusual precantion 20
provide the best OF materials and worknaDshipi 10
not cannot attach particle Of blame TO them;
know the builders OF the boiler; have known then pro
fessionally for long perioa; have given them WORK
and would give them morei, they arc now ouiaing
inteudencs I do not hold them responsble Tor the
rnpturing OF the fapgc II 1t existed and could not 90
detected by the ordinary Visual examination N ,Ic
shop; such occurrences amounting even to visible
fractures are OF common occurrences and, as 10 the
Of the bracing Of the boilers II Is alike To that
of other builders for like design Of boiler have NO
connection of interest or employment with either of the
par les affected by the occasion OF this inyestigaion
Mr. Edward Lee. boiler maker, testified that no did
not any part where the fiber OF the iron was cut III
the boilers OF the st. John; be would consider II per
fccty safe to carry 40 pounds on the pohes Oh 'ns o.
John u,
he thought the part which bnTsted was insuiilcehiy
ThaIles Collins. a boiler maker testified that he ex
amined the boilers Of the ST. John since the explosion
he thought the braces sufficient for 10 pounds OF
pressure; the chise marks were on nearly all boilers
that he had seen; the quality OF the iron was good
examined tie boilers of the st. John thought the boilers
were well braced that the iron in them was good; be
would not hesitate 10 10 pounds OF steam on the
boiler which exploded; 10 could not IN any way ac
count for the explosion.
Mr.. q. IT, Reynolds an engineer. testified tha. he
exnmined the boilers after the explosion they were
constructed gs other boilers usually are-bracei like
other boilers braced; there was no necessity that
they should be braced where the rent took place the
reason that IL was segment OF q cirei,.
and whenever braces come on circular surface they
arc only for the purpose of bracing fiat surface IN
another part OF tho boiler the cel marks did not tend
to weaken the boilers he thought the nange was nicked
AZ the water line in the turning and tnt tho constant
exposure TO stcan hot and cold water caused II to
weaken and corrode; boilers should be inspected
ofoner than once year; he thought the theory ad.
vanccd that the submittal OF boilers TO bydrostatic
pressure tendei 10 weaken them. aDfOundcd.
Mr. Reynolds then lefl the stand when
Prof Howell again called. aud asked his opinion
of the evidence OF last witness.
Mr. Hazwo coBcurred In ithc statements OF Mr.
Reynolds. and thought boilers should be Inspected more
than ogee year
20 decide upon aud cft tho In the hands Of tie
jury. -
The following verdict was given by the jury at -
That At the time Of the explosion the boiler In
weakened condition from The effects OF tho force ot the
hdros'aic pressure brought TO bear In testing Its ca
pacty by the United States INSPECTORS in the use Of
cold water by insufficient bracng on the circular part
above the Hat surace by the effects of chipping aud
c.uklng aud by corroson OF the boiler the inside
at the high water mark, bat from the diverse viows
and opinions Of the witnesses before u.s. the Jury are
occurred, or whether from or moro combined
The Jury find that thls boivr made of the best
material and braced in the usual manner of Construct
Ing boilers by the best boer.makers aud approved
by scientific and practical bat the Jury recommend
that hcre8fer boilers be briced above the Hat surface
the circular part The Jdry recommend that steam.
boat boilers b. inspected oener than the prnctce
s by eonptisHi hspscsor,. nnd that said inspections
be- made often once In three months; also that the
hydrosiaio test with cold water be abolished and that
water be used In It's stead. The Jury also strongly
recommend aud earnestly ablurc all boiermakers 10
extraordinary In constructing steam boilers, and
that especial pains be taken 10 avoid breaking the ber
Of The iron by caukipg or by other means.
Watson A. Fox. foreman John T. Henry. James
Garfield II. Spauldng. George w. Little, George
II. Mackay. T. Westinan I. Maxwell. II. d. Goodwin.
Joseph Honworthy.
ANoTIiEE VICTIM OF THE ST. JOHN DISASTER.
Mr.. John Il. Cunningham. who with his wife aud
two daughters scsded on the ST. John. died on
Wednesday yieveIiug This Is the 18th death which we
called o TO chronicle In connection with the catas
trophe.
Hsu.a Nsul. a.l n. A.