The rustler., 1891-12-11
m TIE ELECTRICAL woRLn.

m The ELECTRICAL WORLD.
An English inventor believes th.s
he can run clocks by nafuEal electricity
from the earth. The carth's curr~ntx
vary considerably. bat by an automatic
arrangement hxed On The pendulum he
can keep time. he asserts. 10 within one
minnie IN year
1t is stated that the Western Uniou
Telegraph Co intends 10 frame hand-
somely the frst message ever seut bx
telegraph In this country. which va In
May. istA and exhibit In the electrical
department at the exposition In Chicago
In is23 The message was received bx
Prof Morse, At the capital In Washing
ton, from an assistant In Annapolis.
Nd
At meeting Of those concerned In
the electric lighting Of the city Of Lon
don. the chairman. Sir David Solo
mons. stated that 900 applications.
amounting in the aggregate 90 40. 900
lights. had already been received. and
that Il was expected to commence pri-
vate lighting in January. lSaa The
system adopted Is the erection Of 10 600
light transformer sub-stations feeding
q i00-volt network
"A novel adaptation Of electricity Is
reported from Halifax, n. s. IL ap-
pears that the number Of sentinels in
garrison OF that city has been reduced
by nearly one-halL II was found that
their work could be more promptly
done by electric bells The bells are
attached 10 the sentry boxes and con-
nected with the guard rooms so that
the sending in OF an alarm 10 the guard
from the sentry is accomplished instan-
taneously
Several mines In the Connellsville
region, In Westmoreland and Cambria
counties. Pa, have been lighted by
electricity recently. The shafts vary
from 100 TO nearly 1000 feet In depth.
Heretofore, owing 20 the accumulation
OF fire-damp gas in many Of the mines,
IL has been difficult 10 illuminate them
and avoid the danger Of causing fire.
The lamps are distributed underground
throughout the main walks leading to
the shaft
During the autumn manmuvcrs of
the Austrian cavalry, a telegraphic
equipment specially designed for field
use, was tested, aud gave complete sat
isfaction. The apparatus and batteries
are placed in two small boxes, one OF
which can conveniently be carried on
each side of saddle. A line of twenty
ISilometers was laid in two hours Each
NFf hta al
in the maneuvers was provided with
one OF these portable sets of appa-
ratus.
The electric launch, which has re-
ceived comparatively little notice in
this country, is being used by various
! European governments. An English
general electric traction firm has Just
received a third order from the Russian
government. The field for electric
pinnaces is very extensive. and it is un-
derstood that IL is intended to Git sew
eral large ironclads, which have al
ready electric light machinery on
board, entirely with these electric
boats. Their use for the large Atlantic
/ liners is also under contemplation
Some of the anticipated results of
an invention just brought to public no.
tice in Vienna are of peculiar interest.
The fact that, in the manufacture of the
| little incandesccnt electric light bulbs,
the platinum wire used has hitherto
been the most expensive item. is now
met by u process for combining glass
with other metals, process which pre-
sents the advantage of their being pro-
duced at much less cost An import
ant reason for the employment of plat
mum for this purpose has been is near
approach, in point of expansion, To
glass. 1t is well known, of course, that
changes of temperature have the effect
TO cause both TO change bulk at tho
same rate, so that II the platinum WIRE
once fills the holes through the glass, it
may be relied upon to do so always,
thus preventing the thrush of air, which
would be fatal TO the life of the carbon
filament