The Middlebury register. [volume] (Middlebury, Vt.) 1850-1882, 1852-10-13


passengers, and is in a condition to war
rant the belief that she may be used in
navigation as a steamer with safety to
life, and that all the requirements of law
in regard to fires, boats, pumps, hose,
life-preservers floats and other things
are faithfully complied with and if they
deem it oxpadient they may direct the
vessel to be put in motion, and may a.
dopt any other suitable means to test
her sufiiciency and that of her equip
ment.
Second. They shall also inspect the
boilers of such steamers before the same
shall be used, and once in every year
thereafter, subjecting them to hydros-
tatic pressure, the limit to which, not ex-
ceeding one hundred and sixty-fve
pounds to the square inch for high pres
sure boilers, may be prescribed by the
Iowner or the master, and shall satisfy
themselves by examination and expert
mental trials that the boilers are well
made of good and suitable material
that the openings for the passage of wa
ter and steam respectively, and all pipes
and tubes exposed to heat, are of proper
dimensions and free from obstruction :;
that the spaces between the fues are suf-
fcicnt. and that the fire line of the fur
mace is below the prescribed water line
of the boilers and that such boilers.and
the machinery, and the appurtenanccs
may be safely employed in the service
: proposed in the written application, with
out peril to life; and shall also satisfy
t themselves that the safety-valves are of
, well arranged, and in good working or
= der, Tone of which may, if necessary in
the opinion of the inspectors to secure
safety, be taken wholly from the control
f Of all persons engaged in navigating
+ such vessel J that there is suitable
number of gauge-cocks properly insert
| ed and a suitable watcr-gauge and steam
= gauge indicating the height of the water
t and the pressure of the steam that in
| or upon the outside flue of each outside
5 high-pressurc boiler there is placed in 4
! suitable manner alloyed metals, fusiblC
+ by the heat of the boiler when raised tC
a the highest w rk 'ng pressure allowed
/ and that in or upon the top of the fucs
y of all other high-pressure boilers in the
t steamer such alloycd metals are placed
as aforesaid, fusing at ten pounds great
|. or pressure than said metals on the out
: side boilers, thereby in each case letting
r steam escape and that adequate an(
5 certain provision is made for an ample
+ supply of water to feed the boilers at al
i times, whether such vessel is in motion
t or not; so that in high-pressurc boilers
A the water shall not be less than fou
:, inches above the fluc: Provided, howev
| or, i'll steamers hereafter supplied witt
h new high-pressure boilers, if the allo,
s fuses on the outer boilers at pressur,
n Of ten pounds exceeding the working
c pressure, and at twenty pounds abov'
d said pressure on the inner boilers, it shall
If be a sufficient compliance with this act
r Third. That in subjecting to the by
; drostatic test aforesaid, boilers called an,
&c usually known under the designation 0
?. high-pressure boilers, the inspectors shal
!, assume one hundred and ten pounds t
Q the square inch as the maximum pres
If sure allowable as working power for
c new boiler fortytwo inches in diameter
II made of inspected iron plates at leas
n one fourth of an inch thick, in the bes
manner, and of the quality herein re
/, quired. and shall rate the working pow
IS er of all high-pressure boilers, whethe
d ofgreater or less diameter, old or new az
$ cording to their strength compared wit
Is this standard and in all cases the res
n applied shall exceed the working powe
e allowed in the ratio of one hundred an
sixty-fye to ono hundred and ten, and n
Ie high-pressure boilers hereafter mad
e shall be rated above this standard an
re in subjccting to the test aforesaid thi
d class of boilers usually designated an
j. known as low-pressure boilers. the sal
W inspectors shall allow as working poy
p er Of each new boiler a pressure of onl
j. three-fourths the number of pounds
r the square inch to which it shall hay
been subjected by the hydrostatic tei
e and found to be sufficient therefor, usin
IN the water in such tests a. temperatur
H. not exceeding sixty degrees Fahrenheit
IS but should such inspectors be of the
4; pinion that said boiler, by reason of il
in construction or material, will not salel
!; allow 50 high a working pressure, the
ia, may, for reasons to be stated specifcall
w in their certificate, fix the working pre-
t sure of said boiler at less than thre
in fourths Of said test pressure and no 10
nd pressure boiler hereafter made shall |
g rated in its working pressure above Il
er aforesaid standard and provided til;
he the same rules shall be observed in T
ct gard to boilers heretofore made, unlei
ii the proportion between such boilers al
N, the cylinders, or some other cause, rel
p ders it manifest that its applicatio
Vi would be unjust, in which cases the i
Ike spectors may depart from these rules,
"a it can be done with safety but in Il
he case shall the working pressure above
lt, exceed the hydrostatic test; and 1
en- valve, under any circumstances, shall |
&c loaded or is managed in any way as
or subject boiler to a greater pressu
lis than the amount allowed by the inspec
es ors nor shall any boiler or pipe be a
ng piled be approved which is made
m whole or in part of bad material or
Ia unsafe in its form, or dangerous from d
tn feetiyo workmanship, age, use, or al
ia other cause.
ri Fourth. That when the inspection
nd detail is completed and the inspectors u
ie- proved of the vessel and her equipme
as throughout, they shall make and su
M scribe certificate to the collector of Il
Zip district, substantially as follows;
lp- State Of, District Of.
In Application having been made in VIZ