New-York tribune., 1903-04-23

being reserved as smoking gallery for mem
bers.
The demolition of the Old Stock Exchange
building was begun on April II. 19O1 and,
owing to the substantial manner In which the
structure had been erected, occupied a much
longer time than had been expected. The walls
being laid in cement, blasting was resorted to
largely, and on account Of the situation Of the
old structure surrounded as it by new
buildings, this a delicate undertaking.
While the walls were being reduced. another
problem presented itself-the caring for the safe
deposit vaults which were in the centre of the
old building on a spile and concrete foundation.
about twelve feet below the street level. This
vault was built OF granite blocks. about three
feet square by six feet IN length pinned to-
gether by iron bars the roof and floors being Of
iron plate and masonry. Inasnuch as the floor
Of the cellar of the new building to be
thirty feet below the floor OF the old vault, the
question Of excavation was intricate prob
lem. To accomplish this, caissons were sunk
around the old vault to bedrock, steel uprights
were sunk in the caissons and the steel beams
of the building run under the vault and
made fast permanently, thus supporting the
vault, while the excavation went on under
meath. An IDEA of the delicate character or
this work may be had when II is stated that the
slightest settling by fraction of an inch in
the mass of masonry and iron would have
caused the doors to bind and prevented access
TO the many safe deposit boxes which contained
must have them for daily use. Not once did
such a state of things occur, while the old
structure stood high and dry in the air with
blasting and excavation going on all around It.
While the old vault of the Exchange was being
guarded from injury. a new steel vault was
being constructed q few feet lower down and
to the south Of the old vault.
FACTS AND FIGURES ABOUT THE BUILD
ING.
Some interesting details of the construction Of
ton, are as follows:
The building has a frontage of 137 feet S1a
inches in Broad-st., 152 feet 10 inches in New
st and IA feet inches in Wall-st. The build
ing contains 1900 40 cubic feet, the height
being l56 feet above Broad-st., and the floor Of
the cellar ~ feet below the street level The
board room is 144 feet wide 100 feet long and
7412 feet from floor to ceiling, and contains
posit vault in the basement is 11S feet inches
iong p feet wide and feet 101k inches high,
weight, including the 10 ton vestibules, 146
tons. It is incIOsed by cold rolled steel bar
partition weighing forty tons.
The heating and ventilating apparatus for the
Stock Exchange is especially elaborate. -Four
water tube boilers, capable of generating 500
horsepower in steam. provide the steam for all
purposes. The building is warmed by direct
radiation. There are nearly fourteen and a half
miles Of steam piping in the building Twelve |
million cubic feet Of air pumped into the |
building, being forced over warm coils in winter,
and in the summer, over 25000 feet of cold pipes
for the purpose Of heating or cooling the board |
room and other Offices Three absorption ma |
chimes Of 80 tons capacity required for the |
work OF extracting moisture from the air IN |
tended for in the board room. Working |
with these fresh air fans there is a powerful |
exhaust for rfdding the building Of foul air |
The elevator installation in the Stock Ex- |
change consists of six passenger elevators, three
direct lifts and five electric dumbwaiters.
From the board room to all parts Of the build |
ing and to points outside the building, runs |
network Of pneumatic tubes. In all there gre |
about six miles Of brass and iron tubing and ]
10 automatic terminals
The electric lighting and power plant COM
prises three units, the engines of which require
1.040 horsepower. The dynamos generate $50 |
kilowatts. In connection there is a storage bat
terry Of 135 cells, weighing 71.010 pounds, and |
with q capacity equal to furnishing 400 lights
for eight hours Six thousand incandescent
lights and 6S arc lights used about the
building, equalling in illumination 2J0O00
candles. The two immense annunciators, one on
each side of the board room. have 200 num-
bers each, inches square. The numbers drop
when member on the floor is wanted at his
telephone. Eight thousand separate wires
used, with a total length of PAT miles, for the
annunciatOTs.
practically comprises four separate systems,
account Of the placing Of the large board room
IN the centre of the building The marble for
the fronts of the building is from Georgia, and
is OF great durability. One block for the sculpt-
ured portion Of the front weighs fifty tons. The
Luncheon Club. in the upper Stories occupies
12,055 square feet Of floor space the dining room
being 76 feet long, 40 feet wide and IS feet high