The Banner-Democrat. [volume] (Lake Providence, East Carroll Parish, La.) 1892-current, 1895-11-23
IN The ELECTRICAL wORLD.

One of the recent inventions is an
electrical controlling system for eleva-
tors, having a controlling switch at
each landing for calling the car to that
landing, and duplicate switches corre-
spending to the controlling switches,
also placed at other landings, whereby
the car may from one landing be di-
rected to any of the others.
Among the new inventions there is
one which comprises a fiat layer OF
electric heating medium, composed OF
an amorphous resisting material,
ring-shaped electrode of triangular
cross-section, having its fat face up
permost, a second electrode OF conf
cal shape arranged with its base up
permost and in concentric relation to
the ring, both being arranged in the
same plane in the heating medium.
An improvement in the art OF cleo
tro-plating with alloys of platinum has
recently been made. The process con-
.ists in forming suitable bath con-
tanning a chloride of platinum and the
sulphate of the other metal or metals
desired in the alloy to be electro-de'
posited, immersing in the bath as
cathode the article to be plated, and
an anode composed of an alloy OF the
metals to be electro-deposited, and
finally passing an electric current
| through the bath.
M. d'Arsonval has introduced into
electrotherapy new processes OF cleo.
| irritation based on the employment OF
currents of high frequency. NM. Apos
toll and Merlioz have been experiment.
ing for over year with one OF ms
methods, and they have come to the
following conclusions: Currents o.
high frequency, when they completely
envelope the patient and act by sell
,,onduction, are inefficacious and I'M
potent against the majority OF hysteri
cal troubles and against certain neu
ralpic complaints, but the same cur
rents exercise a powerful influence OF
the nutritive energy.
The commission of sewers OF tn
city of London, Eng, according to al
item in the Times, is now in possession
of a well-equipped laboratory. for tn
carrying out Of the provisions OF tn
electric lighting acts and other maj
ters in it's charge. The principal wori
of the laboratory will be meter-tes
ing, for which purpose complete a.
ranrements have been made. In
electrical current is taken from tn
street mains of the City of London Co
and as under the present system tn
current is taken off at pressure
|, between one hundred and two hundre
', volts, which is much greater than tn;
required for the purpose, specs
transformer has been provided.
One of the most peculiar OF tt
, phenomena of electricity is what ma
be called indirect electrolysis, whic
, the following experiment OF MIR.
Andreoli, as related by him In lie Gen
Civil, illustrates: Taking cell div
ed into three compartments by poro
diaphragms, solution OF any salt
i placed in the central compartment
Q while the two electrodes are place
in the side compartments immersed
i similar or different electrolytes. i
5 decomposition of these latter is, on t
e current being passed, effected as II {
;, central compartment did not exist. |
solution in it being unaffected.
Is this form the experiment is an Q
&c one. but Mr.. Andreoli finds that If
'e plate or series of plates is placed in
y solution in the central compartmel
r reactions occur which can only be
't tributed to an indirect or seconds
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