New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1871-08-09
attention to NO. he would sec that the ship wentIto sea;

slider NJ Mltthewss Judgment adequate to zen %
that amp large enough for the sur 6e cnineers
belle We he went aboard the ship one OF the TX Gte
TO rlc he not ahuard to.d lc ,youln,t siy
il: the ccrticafe was made out and Matthews signed ~
with my Nance knew nothing oil IL ti ' tHe e Cp.tom
mSase the coSdnt say that Matthews to
there, but my name was On ~, nnerior ocer infer
from that case OF the North America that Mattnews
Gid moi have had Observation-Disclosures with Matthews;
he oyerrlCd me on several occasions for snip Ike the
NGT NOT Am aa 4 Sne e Stroke consider myself
pccnt to act Inspector OF Boilers; have worked at
them long tme-riyeted them, braced them and put
I'm answer TO the counsel for the Company he said:
Wrote the article published in The Herald of Sunday last
down 10 the words corroborativc evidence " there
good deal of talk In the papers about the
being bad condition, and wanted TO show they were
not generally have often differed with Matthews In
judgments he never asked me to use any rule instead OF
my judgments put g. pounds pressure on the pump OF
the North America and it wouldn't supply the water as
Braistcd told Capt Vanderbilt that it would pay him
TO send Mr. Baised in the country and give HIM charge
OF blacksmthshop, where he might oversee all he was
@ DO you az a Government Inspector feel authorized
to make any of boat make such repairs as in
your Judgment is required, whether that judgment d
ers from hs mott A. Yes; rely entirely on my own
g Even though that Judgment of the owner Is founded
| upon the experience Of centur1esi A. Yes.
COMPREHENSIVE"
Vim. Bromley-Am engineer and superintendent OF the
! Quntard Iron Works; saw the Westhed's boiler Oh
Monday morning last; the cause explosion over
pressure II raining at the time and did MT eX
anime 1t very closely think the pressure was not over
| 80 pounds a boiler Of that kind would stand
probably 40 pounds Of steam there might have been 80
pounds that boiler l measured 1t with my eye ana
think the iron large linch thick; saw no appearance
OF bad management in that boiler no scale, ana no oyer
heating It looked better than most boilers do; think
ought to have lasted u years more observed gOCt
many cracks in iron, but when they took pace ea
] tell
@ What would you infer from the fact that the gTago
marked q pounds at the time OF the expoIGnt A. ,
evident that part of the boiler was too llght ste
gauges oxdize more or less ana there might nave eo'n
IS pounds pressure without the guagc indicating IT,
BERRYMAS CoNTRADICTED.
Thomas Connolly engineer, OF the staten Island Ferry
Company made a statement in contradiction OF MI Der
ryman TO the effect that the inspection OF the Westled
made by the latter was 1869, not 1oO that the Gov
ernment valve not locked at the time that Berry
man ordered the boat 10 repaired without any inspcc
! ton whatever; aftcrwarc, when he inspected IT,
as soon E. he . gS' 9s That p T dS up 70 me the SGr
icatc :" that the old certificate suppose lie wanted
| il TO make a copy Of
TIE COLoRED ENGINEER
Henry Robinson. the engineer OF the Westfcld recalled
There was line from the safetyyalve of the boiler 1t
ran to the cngineroom where could get hold of when
needed it used II when there wasn't enough water IN
tlo tanks. don't know how 70 read and writc hut
read figures; l understood the stoam-suagr perfectly
wei it marked about u pounds OF steam at the Tine OF
"A humber Of figures were here exhibited to the wit
ness and he read tnem off promptly and conoctlyJ
AFTERNOON SESSION.
! UNEQUAL EXPANSION.
Norman Wizard sworn: Am mechanical engineer, and
for y years have devoted myself almost exclusively to
the study OF the Of the explosion Of boilers eX
amined the boiler Westfed twice to begin at the
beginning, the first observation that made was that
the runure had begun looking toward the front of the
ahout the mi idc of me hight Of the lower hucs that
would be on the port side OF The vessel he part ot ne
sheet that had ont ga the center OF the length or e
f 1ESn' Sec3 thrown agsnt the ribs of the
] s'I
! end of the ribbon laid under the boiler and seemed
! 10 have scarcely moved from its onglnal positions
the rivots from the m0nho!c down TO the point OF
rupture it seemed 10 me 0naple mat the rupture
had begun at the point nance before II ehtty stp
rated the sdrhJard side the momentum OF the rear
the head brought the furnace part OF the boiler partially
athwartships. and the end of the shell was projected
o Jd. e Snq LOOKING Ok nf owad the engine the port side the
later destruction Of the boat aud ne resulted rom the
escue OF the steam and the ability 10 perform work
stored mp the water below the line Of the axes o the
the bottom Of the shell of the boiler was contracted at
that temperature, and the difcTental temperature
caused the bottom OF the shell TO pull IN two.
"A diagram was mere presented 10y the witness and ex,
planned. This diagram was The same a. me ItcGhH OF
those published Yesterday IN THE TRIBUNE, exhibiting
section Of the bottom Of the she'll ,,
suppose that the boiler ruptured transycrsely
previous 10 the final releasing OF the end OF the ribbon
sheet which torn out; don't know how long pre-
supposa the transverse rupture reached few inches
beyond that seam where the tearing began think it
lcam 6nt on the last occasion when examined it the
WHAT saw before there was trans rupture nearly
eight feet long; was partly through the ryetbocs,
and partly through the solid set my impression Is that
it only occurred moment before the explosion; have
had great deal OF experience in testing metals have
made series OK expensive experiments al trenton
no long since Ine lHieft,nG5 , iio,r ~ tIgE9
this non where was mChth anu loNhu 20 ltue VIZ
here exhibited piece of pdptr scratched y these
t6c ron: lie sheet was pulled aIaIt Ivy direct tensile
force acting cngLWse OF the shell, rot t0rn as We would
tear sheet Of paper 10y tearing il across The witness
illustrated his meaning 10y pulling strIp OF paper apart
10y direct tension and then by tearing 1t across, anu OBJ
torn apart by tension while the points would be bent by
The iron is more than quarterinch in thickness in
every part measured il carefully with ca!hpers. and
wrote II down at The tme 1t measured The rupture,
bottom Of the shell, fully OnctouUh oi an iHch
and at every other part scaut DC found the fiber of
the iron was everywhere IN hccdcponts showing that
it very tough; It seems 70 be as good in The shell
in the hlgc pdrts and al know that none but good
good quality Of iron in the shell as in the
heads the iron bends cold without cracking; the
first occasion found that the two parts matched each
other except small three piece that gomez
the transverse rapture cannot be obtained by the elastic
pressure % steam III me boiler an estimate o The square
inches area OF IRON ruprcd and the area OF the interior
surface against which the steam presses will show that
II requires WIiout any allowance Tor the restraining
strength Of the hues twice the force cause transverse
O. You say that The transverse rupture was caused bv
the difference between the temperature of top and
the bot OF the boiler and that this rupture took place
had been I'M that boiler for one bonr SppYY d1t water
what DIN renee would there be the temperature of inc
top aud bottom OF the boieri a. II would make the
slightest difference in the temperature Of Tie water at
the bottom the fire not under the water and II Is
b impossible to heat water downward the ton of the
crates at least il inches above the bottom of the
shell believe the hues about half iuil OF aslds
! which good nOncOnductor OF heat i'm
/ fact, of the BEST the ashes are there
now; | suppose that no part OF the neat of
fire could be communicated to that water below tbc
crate, and the exposed heating surface the lower ucs.
probably the water above the heating surface mentioned
Atd % degrees, and below only 50 degree. applied for
am9ntn, number of thcrmometers 10 The boiler OF the
st. JJu that the bulb inside willie the scale was
exposed to view outside the temperature above
! Tho CRATE, and Immediately below the crate 50.
try within four inches of each other: occa .uuav
( I.r temperature was much coz degrees higher
IN the tedmrOOm in the upper part OF the boiler There
~ such difference In the specific heating power OF steam
agu t.r, bulk for bulk, that the former VIII absorb