The Chickasha daily express. (Chickasha, Indian Territory [Okla.]) 1899-current, 1901-02-19

Engineers C0uAidrrfHa The Poazi
bfiifies 81 the Sew Power.
Fngineering Magazine. e would seem
that certain uses mas bt found for liquid
air in whichT considerations Of cost are
not - important as IS the ability "a g0-
tain the effects in view. ln wafiafe. Tor
example. the Doss ssi0n Of hlghly concen-
trated energy stores under control = very
important. Liquid ar can De rapidly cone
v-rted into compressed air ai SIX tons per
SQUARE inch. This would probably De use-
fll I'M the projection of high explosives.
Compressed air. IS now used Tor propeiiing
mobile tOrped0es OF fEh-torpedoes. a.
they are called Difleible torpedoes ether
depend for power upon compressed air Or
Compressed air requires high pre1sures
and very strong ard heavy containing
vessels Liquid air can De stored without
pressure or al low pressuref. and can be
evap0ratcd al any desired pressure while
it's bulk represents that OF air under SD
atrnosphcres. A Etora se-battery wotlld
probably be from fve to ten times as
heavy a. liquihed air ia q receptacle, for
equal available energy. But 10 storage
battery could BE- discharged at an eqciFa-
lent rate.
Submarine boats and flying machines
may yet find use FOR liquid air. IN The
submarine boat IL could be cYap0rated By
the heat 0f the surrounding water. and
after furnishing powe n would veIeiate
the boat Before the final discharge u
could be burned with 81 N a fuel engine
for further power We may hnd use for 4
in the flying machine. For emergency
work ID could in eyaporatinE cool The cyi-
lnders of fuei-engine and Yield power
ae a result Moreover control of tha SUBJ
mergence Of boar could he cifected BY
the use 81 liquid air. ~ easily sasiiied, 90
add 20 the displacement
The great feature of the application o.
such a power as i'quid air would be its
emergency value By this IS meant tho
ability 10 obtain N wili a sudden output
far beyond tho normal Animal power
notably possesses this emergency value.
and the success % eifctfic trolley systems
largely depends upon tie fact that when
needed, the station can De called upon
for a temporary delivery 20 any single
car or train. of q power greatly n ex-
cess OF the rated output " the motors.
A faeisatinG speculation f0r The ciee-
lflcal engineer % the possibility of s0
cooling the conductors 81 electric hncs or
apparatus a. 70 improve The eonduciivitv
many times, and 80 diminish the losses
IN any given length 0f conductor and
az the same time greatly improve the 'u
srlati0n. Professors DeWHr ard Flem-
ins have shown. however. that it s. a
condition OF this enormous Improvement
IN conductitity that thc metals b. pure.
very small percentage IL impurifv
greatly legseniuk the result. As regards
the insulation. they nave shown that
dielectfics and even ciccifoiypes become
ir sulntors OF cxceilcrt character when
cooled 90 the temperature of liquid air.
What effect such q lowering Of tempera-
ture would hava upon the dlclccsrio
strength or striking distance between
conductors az great dinercnres 0f potcn-
tiai IS not as yet Determined. go far ~
the writer Is aware The result 10 ba
expected from a consideration OF the ~
feet of heating upon dieiectrc strength
or striking distance ia fnnt rcry low tenn
pcrature will cake & FAR more difficult
20 break down Insulation by sparkling
through t.
That the electrical engineer coveia sust
such agencies az viii thus extend the
range Of poss billiies iu his art needs no
proof He would BE npt 70 choose q
pipe line conveying liquii afr as the very
best location for hfs conductors. aH-
sumcd 10 BE- made % ~ prfc metal o.
possible. the high inrui1lion probably at
tainnbie being the cbief object Whistler
his CONDUCTOR were placed outside such
q pipe line or within ite same. he could
no doubt adagt himself % tie conditions.
provided he could aet the benChi of tho
low temperature Insulation. and pos-
sibly. % q cectaiu extent. q gnin in con-
duction