444 CITY OF BALTIMORE. [ART. 4.

ready for inspection, in compliance with the requirements of said
notice, and shall furnish such assistance as the inspector may
require, under a penalty of fifty dollars for such failure or neglect,
and a further penalty of fifty dollars for each day any such boiler
is used without a certificate of inspection.

1872, ch. 153.

514. It shall be the duty of each inspector, once at least in
every year, to inspect all stationary steam boilers of three horse
power and upwards, used within the limits of his district, subject-
ing them to a hydrostatic test of at least twenty-five per cent,
in excess of the steam pressure allowed, and satisfy himself, by a
thorough external and internal examination, (if possible) with a
hammer, that the boilers are free from danger from corrosion or
other defects, are well made of good material, the openings for
the passage of water and steam, respectively, and all pipes and
tubes exposed to heat are of proper dimensions, and free from
obstruction; that the flues and tubes, if any, are circular in form,
the furnaces in proper shape, and the fire line of the furnace is at
least two inches below the minimum water line of the boilers;
and shall also satisfy himself that the safety-valves are of suitable
dimensions, sufficient in number and well arranged, and that the
weights are properly adjusted so as to allow no greater pressure in
the boiler than the amount prescribed in the certificate of inspec-
tion; that there is a sufficient number of gauge-cocks, a steam
gauge, a coupling-cock in suitable position for attaching the hy-
drostatic test, that means for blowing out are provided, so as to
thoroughly remove the mud and sediment from all parts of the
boilers when they are under the pressure of steam, and that
fusible metals are properly inserted so as to fuse by the heat of the
furnaces when the water in the boilers shall fall below the pre-
scribed limits, and that adequate and certain provision is made
for an ample supply of water at all times; when the inspection
is completed and the inspector approves the boiler, he shall make
and subscribe a certificate of inspection, stating the condition of
the boiler, the number of years or months it has been in use, and
the pressure of steam allowed; and no greater pressure than that
allowed by the certificate shall be applied to such boiler. In limit-
ing pressure, whenever the boiler under test will, with safety,