National Republican., 1883-12-05
LET THERE Be LIGHT.
Exhibition Of the Swan IncandesCent Electric
Lamp at the National Museum.
Storing Electricity Away at Will and
Using It Like Gas.
A Full History and Description Of the Brush-Swan
Lights, Both Arc and Incandescent
Complete Success OF the Installation Last
Night.

Last evening an exhibition of the combined
Brush and Swan systems of Electric Light.
ing, Storage, and Power was opened at the
national museum. In tho large lecture hall
were placed about forty Swan incandescent
lamps, which were operated from electricity
stored during the day in the Brush storage
|. battery, which was in corner of the
room, and open to the inspection of those
present In the corridors were Brush arc
lights, operated direct from the dynamo
machine which had charged the battery.
This installation was therefore, an epitome
Of one for an entire city, with tho exception
that the Washington company propose using
water power, which is much cheaper than
steam.
The light emitted by the incandescent
lamps was clear, with a blended brilliancy
and mellowness that produced pleasing
effect in the largo lecture room, and, notwith-
standing that they were supplied from
storage battery instead of from the dynamo
machine direct, no difference was per-
ceptible. The arc lights in tho
corridors emitted flood of bril-.
liancy, tinged with purplish hue and
producing decidedly weird effect. Their
intense illuminating power was best judged
by the shadows of ANIMALS and other Curl
osities in the museum cast on tho tiled floor,
Cledr CuJ anu Weli ucuuCu. III was also easily
observed that the incandescent light is an
indoor light and the arc best adapted for
outdoor illumination. The exhibition and
tests during the evening were witnessed by
many prominent people, among the number
being Senator Conger; Mr.. Lyons electric
examiner patent Office Capt. Tanner, United
States fish commission; Chief Engineer
Schneider, U. s. A.; Lieut.. Selfridge, U. S.
NJ; Mr.. James Wormley, DR.. Kidder, u. S.
N; Gen. w. w. Belknap, ex-secretary of war;
MIR. Carl Schuermann, Col. Rockwell, the
Russian and French minister, Hon. John Jay
Knox, Count Lewinhaupt, Baron LIE Streve,
Prof. Taylor, agricultural department; DIR.
Hill, Mr.. Foote, inventor of the electric mo-
tor; DIR. Beau, Second Assistant Postmaster
General Elmer, DIR. L. NJ. Schaefier, A. B.
Talcott, electrician of the capitol and his
assistant, Capt. J. Ii. Woodworth, A. NJ. Clark,
formerly manager Of the government tele
graph, and Messrs. Daniel, Leech, Crandalll
Tolson, Hendley, Hubbard, Stilson Hutchins,
and Architect Cluss
The exhibition will continue until the
evening of the seventh instant, inclusive.
Mr.. Brush's previous inventions enhance
the value of his storage batteries, his dynamo
electric machine, by which powerful currents
Of electricity are produced, are the most etii-
cient yet placed on the market, furnishing
moro current for the power expended than
any other. His "arc" lamps for furnishing
large light have no equal for steadiness and
efhclency. Each lamp is its own governor,
and any number Of them can be used on
single circuit. His current governors control
the machines and obliges them to furnish
currents in accordance with the work to be
done, whether that work be lamps, batteries,
or eleccro motors; with this governor the
power is proportional to the work done; if
but half the humber of lamps are used one
half the power is required, and so on with
any other number.
On the Brush system, arc" lights of from
1000 to 100000 candle power are produced in
one light. There are three of the latter sizes
now in use in the British navy" having
been made for them by the Brush Electric
company of Cleveland, Ohio, which company
controls the Brush patents. For commercial
use lights of 1,200 and 1000 candle power
each arc in the greatest demand, and large
"Brush machine will furnish forty lights of
1000 candle power, or 81 lights of 1000 can
die power, with an expenditure of 35 horse
power. These lights are suitable for lighting
streets, squares, wharves warehouses, and
factories, or all places where large lights are
needed For all such purposes they have no
equal, either in quality Of light or in point of
economy.