The rustler., 1891-11-06


-Rspr~s~nanslvss q ne Bsn Tsls<
phane ca. h washington. say that ths
trunk lins q hfty wires now being eun<
siructed betwcen Neu York and CHI
caro- VII b. completed within few
monfhk
The hrraking Of an electric wire ID
. coai mine VII frequently give forth
q SPARK. which may explode danrerous
gascs A recent Invention l. a safefr
mining cable which can b. torn apaI
without producing . spark, arc or q
fame
A FrenchmAn has invented a novel
lamp for use In lighthouses The regu-
lation Of this lamp is extremely sensi-
tive. being made by beam Of light
that Is reflected from the arc on .
thermal regulator hY means Of q sps-
cial lens placed In the focal plane
An ingenious application of elec.
tricity for ventilation has been brought
out In France. An electric fan furnishes
the current Of air. which can b. cooled
by means Of ice or other cooling agent
II hot air is required electricity il sent
through a series OF meshes ~ wire.
whose hiRh resistance causes Il 20 be.
come hot and the air passing through
these Is given the heat required
-Brazil's first electric railroad viii
soon be in operation in the city Of Ia.
hia. II viii be- a narrow-gauge passcn-
ger road a mile and half long The
whole plant and equipment were made
In this country aud shipped q short
time ago II Is a sample installment.
and II the Brazilians are pleased with
the electric method OF transportation
n much longer road win te built
There Is a quaint humor. II nothing
else, in the precaution taken by the
Germans 10 prevent accidents upon the
Lauffen- Frankfort cable. which trans.
mits a power Of %. 600 volts-a current
so deadly that Il would kill ON the in.
slant of contact All the poles carry
ing the wires for the li2 miles Of trans.
mission are adorned with skulls aud
crossbones, which are surmounted with
a warning notice.
1t is said that the experiment ofthe
telephone church service has proved so
successful in birmingham, Eng, that IL
now proposed 10 develop the idea by
connecting the hospitals of the locality
to Christ Church. the center of the ex-
pertinent. Already the wire has been
switched ON 10 the bedrooms of sick
folk, and with marked success ilexi-
BILE cord being attached TO the ordinary
receiver, with specially adapted in
strument for fixing on the head OF the
invalid
Tests are shortly TO be made on n
French railroad of an invention OF Nj.
llellman, in which improved traction
is said to be secured by placing a steam
engine and n dynamo on n car. The
current from the dynamo is to be convey
ed by suitable conductors 10 the other
cars, where II will drive motors attach
ed TO the axles OF their wheels The
inventors idea is to utilize the whole
weight of the train for adhesion. and
he claims to be able TO ascend grades of
one foot in 200 at the speed of so miles
an hour
The Shipmasters' society, Of Eng
land, has made complaint TO the
Trinity house, the authority in such
matters, of the unsatisfactory results
of electric lights in certain conditions
of weather. Ii says that electric lights
are often invisible in a hazy atmos-
phere, through which oil lights and gas
J lights can be seen clearly. Fault is
found also with the binding quality of
some of the most brilliant lights, at
the South Foreland and elsewhere.
which are said 10 cast dense shadows
and to produce optical illusions of n
dangerous kind. II is suggested that
some of these evils might be mitigated
by the use of colored glass.
An interesting trial has been made
in Germany with silk weavers looms
worked by electricity. by cable of
one hundred feet in length, one-horse
power electric shunt motor, with
one hundred volts and four amperes,
was put in motion, and the transmits.
sion for the weavers' looms was re-
stricted by communication to seventy
two revolutions. Two weavers' looms
were put in motion the result, as
stated, being that the working by elec-
tricity was more satisfactory than that
by means OF caloric engines or gas
motors, and that the swinging massea
otherwise necessary for the working on
small scale, can be dispense with.