The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1880-09-12
THE ELECTRIC LIGHT.
A Successful Exhibition Given Last
Night.
An Invention that Will Do Away
With the Sun.

W I'LL l4O DGus
Z AS announced an exhibition OF the
Is Brush Electric Light was given at q.
nc. NJ. l. last night. one lamp
. being placed inside the build
Q ing and another outside. II
5 will be remembered that W.
w. Coles circus was lighted by one
D of these lamps. but while very good
= was not fair te.t of the capabilities
of the remarkable invention. Con-
siderable difficulty was experienced
IN getting the apparatus in working
order for lest nights exhibition, the
AeI0s engine furnishing the necessary.
power. but not being put up for the
express purpose of course could not
DO as we'll as an engine intended aud
erected for the cole object OF afording
power for the light. The light itself
{ Is as clear and white as can be
imagined, gss and lamp light sp-
pesring 6 deep yellow in comparison
with 1t. It's effect is to produce
something nearer the light of the sun
than anything one could conceive of. |
Ehe lamp inside the store threw a |
fail light over q great portion Of the |
large hsrdWar room, but WAS little |
too high up 10 give good effect.
The ona outside, however, worked
admirably. 1t hung some distance
below the roof and in front OF the
store, and threw a full clear light on
every object for a long distance, the
stores on the opposite side OF the
street being almost as clearly. visible
as in the day, and this too
while the moon was shining, which
naturally lsssened the effect. One de-
feet only was obserVable-the hue-
taation of the light, which was
sometimes stronger, and sometimes
Very much weaker than oEhers. This
was owing, &c Mr.. Ruthraufi states,
to the unsteady character OF the I
power, which could lot be avoided in
q mere exhibition Of this kind. The 1
lamp, in order to give a steady flame,
requires a fair degree Of steRdiness in
the motive power, and when this is
wanting, the fame is propOrlionstely
unsteady. Small sparks were con-
linually f5iEg from the carbon lamps
but died the moment they few from
the burning candle. On the whole 1
the exhibition was most satisfactory, r
drawing out vast numbers of people, Is
who were astonished to behold such
wonderfully powerful Ugh: being cast
rom SO small an object.
The exhibition was not without its I
amusing features, and it was simply
wonderful 20 note how much some
persons knew s5olt it. One
man explained to a very
ignorant friend, that the Light r
Has made by two streams of electri-
city running through two brushes
thence the fame Brush), which met
aEd created the flame. His friend Il
was overpowe!ed Win the others pro. >
found learning. q
Ia conversation with a HERALD I
reporter, Mr.. G. G. RuthrauH, tbs ,
general agent of the light, gave some L
information regarding electric lights 4
thGt IS of general interest. He said /:
There ere two principal classes Of L
electric lights. Fret, the one termed 9
the incardescent light, where wire h
or other substance is heated TO q c
white heat by its resistance to the b
electric current The force to &C Y
oomplish this is furnished either by =
battery, or preferably q dynamo ma 8
chine, C machine that will convert II
mechanical force or motion into I
electricity. The objects to be attained g
in g dynamo machine, which is de- :
signed to act simply as the generator b
CT the electric current, are chiefly the v
production of the greatest volume or s
intensity Of current, with the least t
force. Second, the production OF 7
current that shall be uniform. Third, c
such 6 construction as will permit OF c
Tie production Of such q current b
without undue heating. Some ma /
chimes have TO be supplied with a cur y
reLt OF water to prevent aelr destruc- a
ton By burning from their own cur o
rent.
a steam engine, or any other phi
mary motor sufficient 20 impair!
steady and regular motion. is used to
operate the dynamo electric machine, {
through which the force Of this en- {
CINE is converted into electrical eneF
~ TO be applied either to produce
the electric light, or for electro
plating, elsc;rO-typiDg, or any other
use that the current is desired for. In [
machines Of the cha
racter | have referred to. the current
is generated by the revolution OF an
anpular aruaiure in q strong mag. I
netic field. The armsture is in the {
shape OF ring, and in the best form
of machine it carries insulated wire
bobbins. This a!msture is reyolved
between two magnets clothed with
insulated wire, wrapped around the
nlsenet ike thread upon spool,
and it is the peculiar arrangement
and electrical connection OF parts
COZ, >, sing the machine that carries
an electrical current to be created by
the revolution of the aTmature be'-
ween the msgnets. This machine is
termed the generator, and is simply
the agency by which the power say
OF q steam engine, is converted into
electricity.
The application ofthe force is made
through what is called the electric
light. or regulator, which is an indie
Dendent device whose function Is
simply to convert the electric current
Into light. There ara two general
classes CT lamps, the incandescent
and the vOltaic arc lamps. OF these
the latter have been found by far the
bsst. i
The incandescent light is produced |
by the heating of o wire or other
substance, due to its resistance 20 the
massage Of the electric current.
will illustrate this in g simple manner
by supposing 4 and B to be
A G B
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