The Stark County Democrat. [volume] (Canton, Ohio) 1833-1912, 1877-07-19

This invention has for some time been
in regular use in Paris in the lighting OF
the workshops of M. Denarouze, where
It is worked by a company. II IS also
used in the Marengo Hall OF the Mag!!'
zine du Louvre, where eight electric
lights have replaced one hundred Argand
burner gas lamps, with far more billiant
effect.
The first trial of this light was made in
London during the first week IN june
1t was made to test its Applicability IN
lighting up the docks, warehouses and
other establishments, where 1t is some
times essential TO carry on work during
the night. Four electric lamps were pla-
ced in the courtyard Of the docks, forty
Ave feet apart in one direction and twen-
ty in the other. The light in each lamp |
was subdued by transmission through |
ground glass globes. OF the experiment,
the Times Of June 18th says:
"The light was produced from one OF
the Alliance Company's (Paris) electro
magnetic machines, having thirty-two
magnets of six plates each, and being
driven by a small portable steam engine.
After burning for a quarter OF an hour
the electric lights were extingulshed and
four gas lamps, each having four OF Brays
No. 6 burners and four powerful retiec-
tors, were lighted. The contrast was
very marked, the gas burning with dull
yellow light, which barely lighted the
surrounding space. The visitors then
proceeded to the top story Of one OF the
larger warehouses, which was lighted
with three of the electric candles, placed
at considerable distances apart, and in
the windows of the building The floor
was about 120 feet long by 90 feet wide,
and the light was most efficient when not
obstructed by the shadows of the visitors
moving about. A portable electric light
was next carried down into the hold Of a
large vessel, and its efficiency. in that re-
spect was fully demonstrated, as 1t was
also by an electric light on the quay. By
the aid of these lights, properly arranged
the loading and unloading of ships could
be done at night, AS final experiment
a candle composed of pure kaolin with
copper wire run through its center was
ignfted by the battery and burned slowly
away. II gave a bright light, and was
intended to show the applicability OF the
pure kaolin to purposes where only mod
crate lights were wanted. The carbon
points, on candles, will only burn for
about an hour, but M. JabloCbkof arran-
ges four of these candles in each lamp,
and as one is consumed another ls ignl-
ted by simple switch arrangement, 80
soon that the continuity Of the light is
hardly broken. The whole Of the exper-
iments were highly satisfactory, and in
dicate an important advance in the utili-
cation of the electric light-Arst, as re-
CARDS the suppression of clock WORK;
and second, with respect to the divisibil-
ity of the stream Of electricity which
renders it possible to burn several lights
with a single current"
The employment of this light upon
shirs at sea and in naval warfare has
been suggested. Filled with such lights
and reAecting apparatus, the sea on all
sides would be 80 highly illuminated
that no enemy could take advantage Of
the darkness, as the Russians recently
did to run torpedo boat into a Turkish
, monitor and blow it up. Its use in light
houses on the coast is obvious, and there
are hundred other uses to which it can
and will be put, so soon as it is demon
strated to be more economical than gas
Experiments have recently been made
with it in st. Petersburg, with the spec
ial object of increasing the illuminating
power. The results are amazing. 1t was
found that the power of the light is vast
ly increased by covering the carbon bur
ner with thin sheet of copper. The
power of the light was increased from 10
2l0 candles to 1926, and this was again
intensified to 20,275 candles by a slight
change in the position of the carbon and
its covering of copper-or, in other
words, powerful enough to render objects
distinctly visible at distance OF over D.
ono yards.
These experiments are but the begin
ming of the employment of new illum,,
mating agent in many practical ways, and
one will not be over sanguine who be-
lieyes that in a very few years electricity
will take the place ofgas, and the houses
streets and alleys of our cities be so light
ed up that all manner of business can be
carried on, where necessary, as readily
as at mid day. Couldn't we try electric
ity some of these gloomy nights, when
according to the almanac the moon
shines.-Cin Commercial