The sea coast echo. [volume] (Bay Saint Louis, Miss.) 1892-current, 1892-07-30
IN THE ELECTRICAL WORLD.

An electro bleaching process is in
use, whereby the same solution be-
comes over and over again a powerful
bleaching agent through the passage of
an electric current through it.
The mayor of Milwaukee, Wis, has
recommended that the bridges of that
city be operated by electric motors
1t appears that the electric system has
been on trial in Milwaukee during
the last year with highly satisfactory
results.
New Orleans has been the last large
American city to adopt the overhead
trolley system of electric railways, but
it is now about to have large road.
The New Orleans and Carrollton rail-
road, the first to adopt the trolley, will
start with so electric cars and steam
plant of 900 horse power.
The long distance telephone wires
now reach from New York to Chicago,
south to Washington, d. c., and east
ward to Boston, and beyond the latter
city, eastward and northward, the New
England Telephone & Telegraph Co.
has metallic circuits as far as Portland,
Me-, and Franklin Falls. N. IL.
Arc lamps run by continuous cur
rents require no refectors, while those
run by the alternating current do. The
reason is that, with continuous currents,
the upper carbon forms crater which
reflects the light, while in alternating
currents both carbons become pointed,
and throw the light in all directions,
thus necessitating refectors
One OF the recent medical applica-
tions of electricity is in the treatment
OF deafness. The apparatus for this
purpose comprises a battery, a belt, an
electrode supporter on the belt and
shaped to rest on the ear, and connec-
tlons between the electrode and the
battery. This provides a convenient
and efficient mode of receiving the cur
rent, which can be applied in finely
graduated strength.
The Agricultural and Mechanical
College of Alabama, located at Auburn,
Ala, claims to be first to utilize elec-
tricity in the ginning of cotton. A
generator in the college dynamo room
was connected by three e-hundred-foot
Wire with the motor at the station
farm, and when things were in readi-
ness the latter was started up and did
the work of ten horsepower engine,
which was formerly used for the pur-
pose.
The introduction of electric power
in farm work, to replace animal power,
it is predicted, will inevitably inaugu-
rate new era in western agriculture.
A bill has been introduced in the Kan.
sas legislature to provide for the estab-
lishment of an agricultural power ex.
pertinent station by the government. in
which an effort will be made to deter
mine the relative value of the different
motors on the great grain-growing
farms of the plains.
The Electrical Review learns that
MIR. Faure has recently invented a pro-
cess OF producing aluminium, by means
of which he hopes to reduce It's price to
about sixteen OF eighteen cents pound.
Briefly, his proposed method consists in
obtaining in cheap manner aluminium
chloride and decomposing it electrically.
This decomposition can be effected with
smaller potential differance than can
the fluoride now most frequently used
for preparing aluminium by electrolysis,
and at the same time valuable bye.
product is formed in the chlorine liber.
ated. 1t is said, however, that there are
considerable difficulties in the way OF
making the proposed process CONNER
cial success, which, it is feared, NAV
prove insurmountable.
Three speaking telegraph" pat.
ents, based on the invention of Thomas
A. Edison, were ISSUED in May 8 to the
Western Union Telegraph Co. as as.
signee OF the inventor. The original
application fofIthese patents was filed
July 20, 1877, and the claims allowed in
the patents seem to cover every known
form of carbon transmitter. The issue
of these patents at this time is suppos.
ed in some quarters to be in the interest
of the Bell Telephone Co., whose fun
damental patents expire in another
year, but it appears that under existing
United States statutes every patent
granted for invention which has been
previously patented in foreign coun.
try is limited to expire at the same time
with the foreign patent, or if there be
more than one, at the same time with
the one having the shorter term. 1t ap.
pears that the patents just issued to the
assignees of Mr.. Edison have not only
been patented abroad, but the English
patent, which bears date of July 80,
1877, expired on July 80, 1891. This
fact, it is believed, will render the
lately-issued patents in question invalid
in this country.
L Honesty Appreciated.
Railroad President have long OBJ
served your sterling integrity and your
conscientious regard for truth; and
l shall now advance you to an import