Omaha daily bee., 1889-06-19
descent electric lights furnished by one OF

descent electric lights furnished by one OF
| the most complete plants of its size in eXis-
| tence. The power is supplied by three dyna-
mos of the United States Electric Light
company's patent. Two Of the dynamos have
power each for supplying 600 16-candle power
| lamps. and the small one supplies 300 lamps.
The larger dynamos run ut 500 revolutions
per minute, while the small one executes
1,050 revolutions per minute. The machines
are self-regulating, so that any number of
lights may be turned off with
out affecting the balance. The
are operated is a model of mechanical inge
nuty. 1t is supplied with an ampere mete
by which the number of lights in use is reg
istered; an indicator for registering the can
die power of lamps in uso through tho build
ing; balance to make each circuit bear the
same power; potential indicator to register
the candle power of each lamp and ground
detector to locate ground on any part of the
system. Connected with the system is a
plug switch, the use of which is to keep a
proper voltage on each circuit. The building
is wired up and down from central dis
trlbuting point on the third floor and is
divided into eight main branch circuits.
BY this arrangement in case of accident to
one part of the circuit, only eighth
of the number of lamps in the building would
be disturbed. Separate cut outs are also
supplied for each room in the building. The
building is wired with braided oconite WIRE
with proper cut outs for all damp places
Each dynamo is supplied with pilot light,
which burns only when the dynamo is run
ming, and they are arranged to run slngly or
together The plant furnishes over fifteen
hundred lights for the building, and this
number can easily be increased. To the
credit of the company puttinglin the plant it
may be stated that with all the thousands of
feet of wire necessary for supplying the
building with lamps, and the various ap-
plances for their protection and
regulation, every detail was so carefully
observed in the construction of the plant that
when the power was turned on everything
worked perfectly. Connected with the dy-
namo and operated from it is pony motor
used for running the blower of the pneuma-
tic tubes that connect the editorial rooms
with the various del artments of the paper.
The machinery used for the operation Of
| the elevator service is on par in point Of
completeness with that used for other pur-
| poses in the building. For the passenger
service, two Crane passenger elevators are
used, each having a cylinder 80 inches IN
| diameter and IL feet IN length. These are
supplied with water from q tank in
| the pent house on the top OF the
| building This tank is ten feet wide, six
teen feet long and sixteen feet deep, and
| is discharged by the operation of the elevator
into tank of similar size in the sub base
meut from which the water is pumped back
to the upper tank by a Worthington COM
pound duplex pump and is governed auto
matically by a float In the tank. On the
north side of the building an immense Crane
freight elevator is furnished power by a
cylinder thirty six inches in diameter and
wei We feet in length, and is operated in the
same manner as the passenger elevators.
These elevators are speedy, noiseless and
absolutely safe. A one horse power elevator,
used to carry the stereotyping plates from
the sixth floor 70 the press rooms in the
basement, is Cranes patent screw elevator
and is run by rope. transmission,