Witnesses:
D Cooper,
J ohn Kerr.
9.
G
. The method insulating electric con
ductors which cousists laying support
ing the conductors trough conduit, fill- 50
ing the trongh with material which acquires
insulating properties when frozen solidi
fied, protecting the trough from thesurronnd-
ing medium which laid adia-
theriiianons inclosure, and then freezing 55
solidifying the material surrounding the con
ductors and maintaining the same such
state circulating gaseous cooling agent
through one more channels extending
through the same, set forth.
. The method insulating conductors
herein set forth which consists surround
ing supporting the conductors mate
rial which acquires insulating properties
z5 when frozen orsolidified state, and main
taining the material such state the cir
culation gaseous cooling agent through
a circuit pipes tubes extending through
the said material set forth. The method insulating electric con
ductors, which consists surrounding sup-
15 porting the said conductors material
which acquires insulating properties when in
a frozen solidified state, and maintaining
the material such state the continued
application theretoof gaseouscooling agent,
ao set forth.
30 The method insulating electric cbn-
doctors which consists laying support
ing the conductors trough conduit fill
ing the trough with materialwhich acquires
insulating properties when frozen solidi
fied,and then causing gaseous coolingagent 35
to circulate through one more cha'nnels ex
tending through the material the trough so
aa freeze solidify the material, set.11,866
tnining the material such state the
circulation through one more channels ex
tending through gaseous cooling agent,
as set forth.
NIKOLA TESLA. The method insulating electric con- 40
dactors which oonsists embeddingthe same
in moistorplastic compound which acquires
insulating properties when frozen so
lidified state, and maintaining the compound
in such state circulating gaseous cooling 45
agent through one more channels extend
ing through the compound,'as set forth.
forth.
; The method insulatiňganelectriccon-
ductor which consists surrounding sup
porting said conductor material which
acquires insulating properties when frozen or
solidified, and maintaining the material in
to such state bypassiiigagaseouscooliugagent
continuously through channel said con
ductor, set forth.
8.
5
