The weekly intelligencer. [volume] (Lexington, Mo.) 1891-1901, 1893-04-29
IN THE ELECTRICAL WORLD.

Nv y |-@o ttSS- "oIhLSs
1t is reported that the General
Electric Co. will shortly place on the
market a new type of motor in many
respects superior to most of the styles
that have gone before. An improve
ment in large electrical power gener-
ators has also been made.
The telephone line between Boston
and Chicago comprises two miles of
submarine and three miles of under
ground cable, together with 200 miles
of aerial line, weighing 49, pounds to
the mile. This circuit passes through
New York, and connects with the New
York and Chicago line.
Indigo is now made by an electrotype
process, which consists of oxidizing the
yellow liquid formed from the dried
plants stepped in water by passing an
electric current through it from copper
electrodes. The indigo thus formed is
sale to be purer and finer THAI that
produced in the usual way.
-Steno-telegraphy is one of the
means of electric transmission of in
telligence which seems to be meeting
with some favor in Europe. In this
system the sounds and not the letters
are represented by characters, and it
therefore differs from the usual method
rs shorthand differs from longhand
writing. 1t is claimed that greater
economy and greater speed are obtained
by this system than by that now in
general use.
"A multiphase electric railway sys-
tenn has recently been patented by n
Chicago electrician. AS described, the
currents are generated at low pressure,
n then transmitted at a pressure of
f, 200 volts. The working conductors
are on or near the surface of the
ground, and carry a current with a
pressure not exceeding so volts. A
special collector or trolley is used, and
the car carries a motor adapted to
operate on a multiphase circuit.
DR.. E. Hutchinson said, in a recent
lecture before the Royal Institution at
London, that with the electric motor a
speed of one thousand miles an hour
could be obtained, though beyond
that point they perhaps entered the re-
gion of projectiles rather han of loco
motives" This remarkable speed is OBJ
tainable because of the great advant-
uSO VI NV PuiSAJ AobdiJ Ahooioh L "h
electric motor over the reciprocal mo-
ton of the piston and connecting rod
of h steam locomotive.
Artificial diamonds are now made
in an electric furnace. This is said to be
done by placing two hundred grammes
of a mixture of cast iron and carbonized
sugar in a crucible of carbon, resting in
a bed of magnesia, the whole being
placed in an electric furnace of peculiar
construction. After five or six minutes
the crucible and its contents are plung-
ed very quickly into cold water. The
interior is then subjected to a high
pressure, which solidiies the carbon.
On dissolving the metal with acid a
number of very small diamonds are
found.
-Buda Pesth, Austro-H Hungary, APP
pears to be the city where the first tel
ephonic newspaper is published.
The subscribers there receive the
news of the day in the form of a ver-
bal summary by telephone, sent daily
between 8 o'clock in h morning and 9
o'clock in the evening. The matter
sen out includes political, sporting, To-
cal, financial, foreign, etc, as fast as it
is received by the editorial office, and
the modest charge for the service is
about rs cents u month. There has
been some talk, says the Electrical En-
gineer, of introducing such a system in
America. 1t would, of course, come in
competition with the ticker system, but
would be much cheaper.
"What, for want of a better name"
says the Electrical Engineer, has been
termed 'incandescent arc lighting is
fast coming into prominence, and if we
are not mistaken it will nave an inn
portant influence on the trend of the
lighting industry in the future. The
higher efficiency in candle-power per
volt expended in the arc as compared
with the incandescent lamp is too well
known to require further comment at
this late day, but the actual conditions
as involving the cost of lighting a given
space by the two methods have prob
ably not been brought home to many
users of the electric light. Aside from
this aspect of the question, it would not
seem improbable that the present strain
in the incandescent lamp situation may
be removed by the more general use of
the arc lamp run from the incandescent
circuits.n