The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1853-01-20

prudence, skill and ability
To Mr.. Hall-If attended to my business would
open the doors shout mile, or q mile and half be-
fore stopping we shut them, If the steam is up,
when we get under way.
John Murphy, examined by Mr.. Smidt, deposed-
am boilerInaker in the Morgan Iron Works;
am foreman there those are the Works in which the
Renders boilers were made. [Plan produced] This
is correct plan of the construction OF the Renders
boilers. WITNESS here explains the construction of
the boilers upon dagram.l There was a row of
braces made fast to the top of the boiler There
eight or ten of them; the plates are liable to become
injured by heating them; they are turned hot; that
branch OF the business Is done by the iange'
turner it is not SO easy to detect an injury
when the plate is put in the boiler /; think
/ made general observation of the boiler; did not
see any particular defect in it in that connection;
saw q crack in 1t afterwards Captain Farnham
called my attention to it cut it out at the
quest of Captain Famham; when became foreman
the boiler was little than half done; there was
another foreman superintendent when that defect was
put in; am boilermaker about twelve years; it is
necessary to great caution in turning these anges
the boilers were made Of Pennsylvania iron, which has
the reputation Of being the best; the iron in these
boilers was No. 2, large quarter inch; that is
any have seen put in; my attention was called to
the part of this boiler that gave out; it appeared
weakened and corroded to eight ten inches in diff
fercnt parts, almost over every ue; this was while
the boat was at Maiden (BristoD; it was corroded
about the eighth Of inch; it was shelly, and the
shells seemed as II they were pulled apart the plate
did not seem to be solid; it appeared to be made up
of layers. WITNESS again explained by the diagram
the iron is hammered and put through roller; COM
mon rolled iron is not hammered; there are different
thcknesses do not know how the ball of iron Is put
together
To the JUDGE have seen as many as three or
four thicknesses OF iron in sheet
To Mr.. Smidt-The sheets in the broken plate of
the Renders boiler did not appear to be properly
welded; the imperfect welding was seen through the
whole sheet exactly where it burst; the continual
of defective plate would make 1t get weaker all the
time; its appearance denoted having been some time
in that condition; the main cause of the break was
the expansion and contraction Of the fues on this
weak point; the dimension of the upper turn
/ connection something about twenty-six
inches across the top, and three feet deep; it is
like the lid of chest driven in that's the way II
broke; man could not easily detect the imperfec-
ton unless IL showed leak; II il had leaked the iron
would show some salt or sediment; examined II the
second or third day after the accident was before
the coroncrs inquest, at Bristol as q witness; did
not see any evidence on the plate itself to denote
leak; the appearance OF the tops Of the fuc3 was
the same as a other llues Of boilers they
were black they were not very smooth, nor
very rough; could tell If they had been run with