, 1884-10-25

tending Ia the DANISH West India Islands law OF Z4tn
March 1875 concerning public control with Steam Boil
ers on shore, as amended by law of 2nd April 1880,
5 ) !, 2, and 5, the following rules are hereby enacted
a. Subject Of the control.
Every steam boiler which is used on shore, either as a scpa-
rate apparatus for the generation Of steam or for supplying y
From such control shall, however, besides the steam boilers
mentioned in Ordinance of 18th August 1884 30, the following
l. Cylindrical boilers without internal aue and of a capaci,
~ not exceeding 90 gallons, provided they (a) are fitted with q
safety.valve l inch clear in the bore, and with at least l water
gauge and a feeding apparatus; and () comply with the rules
?, Boilers Of a capacity not exceeding l25 gallons, if fitted
with a ~safetyvalve with a clear escape of not less than 0,O7
graph and the total weighing of such safety valve do not ex-
coed 10 lbs. per square inch, or that it is otherwise satisfactorily
limit;
3. Boilers of a capacity exceeding 1875 gallons, fitted with
(@a safety valve as that described under No. 2 and whose total
%weghunS does not exceed lbs. per square inch, 10y an open
tube communicating with the atmOSphere, not less than , inches
IN bore, and nos more than IL feet III vertical height from
the lower opening Of the tube, which, moreover, must not de-
seend below the water level Of the boiler to a greater depth than
at least + inches above the bottom Of the boiler.
The rules contained in the 4 last clauses of next 5 Is p are
manner, however, that boilers Of a capacity not exceeding IS
gallons may be partly or entirely made of castiron, provided that
they are fitted with an open tube communicating with the atmoS-
phere, not less than +! inches in bore, and not more than 6 feet in
vertical height from the lower opening of the tube, which must
be at least 4 inches above the bottom of the boiler.
b The arrangement Of the steam boilers subject to public
CONTROL
3
The HEATING SURFACE of the boiler, by which term is m.
derstood the entire surface of the sides, combustion chamber and
tO'HN y oC bONJ1 NAIWoOO " IC IhCN0 AClIOi VI Viz BC il
the smoke, shall on all points be i'll contact with water, in such
a manner that the Normal Water Lerl of the Boiler shall be at
least I inches Qb0rc the he06ng surface.
This rule, however, does not apply to:
y Any apparatus for superheating steam, not being a part
Of the boiler itself;
y Such parts Of the heating surface as, owing to their com
parative SmalncSS and their position, in The opinion Of the survey.
ors are i'll no case liable to become red hot even by exception
ally strong firing.
No part of the heating surface of a boiler must be constructed
Of Cast iron or Brass. Excepted from this lule are, however, cy
Iindrcal tubes Of brass not exceeding 4 inches i'll bore.
The use Of steam boilers constructed Of plates joined by
Ldpjng, and of steam boilers with Welded Joints upon which
the pressure Of the steam acts with a tendency to tear, is for
hidden.
SIS
graph Shall be indicated by a line plainly marked on the boiler,
and, if this mark is hidden by masonry or any other covering,
also by a line plainly marked on such masonry or covering.
In order to control the water Level OF the boiler, the boiler
shall be fitted with an apparatus showing at all times the level
Of the water, and 3 Gauge Cocks or valves with suitable Oifces
of pscape, and the inner Orifces of which shall be placed respec-
lively 3 inches above, l inch below, and 3 inches below the nor
NAL water line. If the watergauge and the gaugecocks are not
separately fitted Immediately on to the boiler, the joint communi-
cation between them and the boiler shall be effected by pipes of
from to ) inches i'll bore.
The gauge-cocks or valves shall be arranged in such a
manner that dirt or incrustation may be removed by ramming
them in Il straight direction.
The said apparatuses must be placed in such a manner as to
be easily seen by the engine driver.
&4.
Every steam boiler shall be connected with at least one ser
vceable FEEDING APPARATUS capable of keeping up the nor
NAL waterlevel Of the boiler.
Where the supplying tube-the Feed Pipe-Opens into the
boiler, the boiler shall on the outside be fitted with "a separate
sefcosing ratce to prevent the water i'll the boiler from running
out through the feed pipe.
Locomotives and lOcOmotors shall be fitted with 2 feeding
appalatuSeS, acting independently of each other aud worked by
separate machinery, each Of which shall be of sufficient capacity
to keep up the waterlevel Of the boiler.
Immediate supply of a boiler from the water supply of Il city
is as a rule not considered allowable.
Several steam belonging to the same establishment
ratus is of sufficient capacity to supply as we'll each separate
boiler as al. the boilers together with the necessary quantity to