The sun. [volume] (New York [N.Y.]) 1833-1916, 1890-05-18
ELECT'RICdL

| lamp was concealed beneath the "jewellsd" torch
head and asmall battery placed in the stah. In
lighting the torch the actress who took the part OF
Phobus and carried the genils torch applied thumb
| pressure to spring In the handle when the connec
tons formed and tho lamp lighted The bat
| teries woro daily charged at the electric station at
| tachei to the opera.
At the forthcoming electrical exhibition in st. Louis It
Intended TO Illustrate fully the remarkable prog
reSs which has been made in the application of electric
| ity for heating purposeA Among other devices there
win be ordinary looking natirons which flexible cord
is attached and to which the heat can be instantly
transmitted by slight Soldering irons with
similar connections be heated without any waste OF
time and the usual IRE pot be dispensed with. Tea
ketes cooking dishes tin panA and every description
OF culinary articles can in tho way be placed
where and their contents boiled baked in the time
ordinarily taken In lighting Are. Portable radiators
Will also To exhibition which be carried with the
greatest case from one room to another aud which,
when connected, will warm the apartment Supple
mentinE this exhibit will be q number of improved
thermostss or temperature controllers BY which the
temperature Of q room DO absolutely regulated.
Electricians all the world are watching with the
greatest interest the progress of the huge project
which Mr.. ferranh has hand at Deptford,
England VIZ the supplying Of current for light and
power at the enormously high pressure 10000 volts
II this 10 carried out successfully the effect tho
electrical industry will DO remarkable 1t has been
moro than limited In the English papers that
not only was failure of tho project imminent but
that breakdown OF the Ferrsnti cabea had actually
taken place under tho intense pressure Mr. Ferranti
In referring to ono of these pnpers said: am at
loss to understand on whose authority you make the
statements in the article in question. I beg 10
say that the Insulation OF the Ferranu mains
mas mover broken down In the slightest deRree al.
though subjected 10 over 10000 volts dynamica and
very considerably higher tensions Neither
have tile bearings OF the dynamos given troube ,in,s
they were FIRST bedded. Advices from England now
eonnfm tho fact that tho reports Of the failure tho
ferranu mains are devoid OF any foundation. Opera.
tons are going forward steadily and although moro
time has heen taken than was expected, IL ia note
worthy that with unimportant execution in III.
matter OF enclosing tho mains to satisfy tho local
authorities the work at Depford has all been carried
Gus az originally proposed and determined and the
enaneers exprcss themselves as thoroughly satisfied
with the result both Of the dynamos and the maipA
Inc tendency OF largo number OF late electrical in.
Ventions toward the liEhe OF household labor
miniature pumping plant for domestic use has now an
peareo which, with moro current than in reouired
ior couple OF incandeSccnt Tampa will pump 100 gal
ions an hour The pumping plant 10 entirely automatic
anu requires no attention. float in tho tank 10 pro
'iaed with switch by which the motor ana pump are
started when the water in the tank is low and auto
mAtioally stopped when the tank If full
Tho Bell Telephone Company of Canada has concIpd.d
HcohAct Tor tho construction OF double copper tee-
phone limo between the Dominion and provincial can
"AS Inc lines Will run over Montreal and whom they
arc competed conversation DO carried on over 800
mics tho Longest distance yet attempted in Canada
Ihe object Of new electro noel anical applianos
eAeo the schiseophone Is to detect flaws and nter.
MAJ detects IN ras faults to which tho rupture of rails
ana consequent accidents are mainly due Tho vain.
OF this Device can readily be seen During n pumber or
experiments conducted before some of tho higb on
cas OF tho Northern Railway Company of France and
representative or the French Naval Department all tho
indications Of the instrument proved absolutely cor
ha FatA
the exact spot indicated by the schseophone Iis,n
tended to use the for the verincaon OF nro
pelIer shafta
Tie practical introduction OF electricity aava DR. n
L. Dana In the Medical Record has been attend with
much less fatality than that by gas steam rail-
roau@ and many other OF the inventions OF modern
ite Dr. Dana comments at length on tho extraordi.
nary increase now going in tho practical applica.
tons or electricity there being already nearly 6pn
"e'"Oo invested IN light and power alone. and adds
that prsctcaiy new class of injuries the result In
being brought TO the notice of surgeona Injuries of
this nature have been heretofore produced only nv
lightning, and they consequently rare These in.
)uries are not numerous serious, compared with
those met with In connection with other great indus
tries There have been in years only about 100
deaths in the whole world from artificial electric Cur
rents Kerosene has claimed $685. victims during the
past eighteen months in the United States alone Tho
railroad kills annually in this country over 500 people
and Injuries about o oOu.
journal In Chicago some time ago offered prizea
for the best hree project for emphasizing the success
OF the Words Fair in that city Two tho proposals
which have been submitted involve tho use of cleo
tricity one Inventor contemplate the building OF
tunnel OF thick glass far into lake Its u
nination 80 that the water be consider.
able distance and tho effect OF immense aquarium
be secured. Another inventor proposes tho erection
OF two towers each about 400 feet high considers
oIe distance apart and the construction between them
OF aerial electric railway II is stated thar An
aerial road of this kind is about to be built Zurich
between two hills about a quarter OF a mile apart
The little village OF Middlebury Vt, is to DO lighted
by electricity. As soon the decision adopt the
electric light arrived resident put in All applL
cation for tho post OF ampEhter under the regime
tits stated that inventor has devised conductor
the insulation Of which consists OF spun gAsS Tho meth
Cd employed consists In winding the wire with slack
twisted yarn either cotton or woollen, and laying
it longitudinal strands OF glass Outside of these
strand Of spun glass intermiIsd with silk is wound In
close spiral and that braided covering Of cotton
wool hemp fax. silk, ine wire Tho whole Is coated
thickly with paran thick varnisa II the wire to
bo exposed ampnesa Where tho conductor In I'M.
dor cover soluble glass Ii used 1t is declared that
wires covered in this way practically indestruetble
In commenting on the recent fastsending tourna-
ment of the telegraphers G. e. Ward says: There can
be no possible Argument in favor OF speed against
legiblitv and accuracy N Geographic work. Perform
ances nko POLLOCK are, IN my opinion, vauelesk"
DR.. MArzari of Milan has constructed an apparatus
for maritime signalling by electric lamps at night in
which tho necessary connections for red, wite and
blue lamps arranged in the Interior suit the com.
binations agreed upon Tho letters marked plainly
upon the keyboard, and tho proper connections for
each signal are made by simply pressing on the keys
Companies supplying electric light to private con.
Iumers find that much unnecessary of power and
Of lamps takes place from caelessness in regard to
NINTH mn he lighf VII In,
window which desirable to keep lighted I'D to or
10 O'Clock in the evening often has its lights burning all
light because thero is no ono to put them out This
problem has now been solved by the invention of All
automatic clock and cutout which shuts off tho cur.
rent automatically at any desired time The clock will
switch any number OF RhtA arc as readily az in.
cAndescont The automatic clock 10 also valuable for
running motors for specified time and to enable sta
lions to combine both lo-ociocE circuit and an all.
night circuit on one line.
Tho electric microscope promises mako some won.
1erful revelations in tho world of science At recent