platform is even with that of the main operating room floor, so that
it may be freely used by the water tenders and by the operating
engineers without being obstructed by the firemen or their tools. The
platform in front of the boilers will also be used for cleaning
purposes, and, in this respect, it will do away with the unsightly and
objectionable scaffolds usually employed for this work. The water
tenders will also be brought nearer to the water columns than when
operating on the main floor. The feed-water valves will be regulated
from the platform, as well as the speed of the boiler-feed pumps.

Following European practice, each boiler is provided with two water
columns, one on each outside drum, and each boiler will have one steam
gauge above the platform for the water tenders and one below the
platform for the firemen. The stop and check valves on each boiler
drum have been made specially heavy for the requirements of this power
house, and this special increase of weight has been applied to all the
several minor boiler fittings.

Hand-fired grates of the shaking pattern have been furnished for
thirty-six boilers, and for each of these grates a special lower front
has been constructed. These fronts are of sheet steel, and the coal
passes down to the floor through two steel buckstays which have been
enlarged for the purpose. There are three firing doors and the sill of
each door is 36 inches above the floor. The gate area of the
hand-fired grates is 100 square feet, being 8 feet deep by 12 feet 6
inches wide.

The twelve boilers, which will receive coal from the coal bunker
located between the fourth and fifth chimneys, have been furnished
with automatic stokers.