611,719
magnetic core and place around the portion
of the head which contains core F,
provided with coils and constituting the pri
mary element motor capable produc-
5 ing rotary field force which will produce
a rapid rotation the secondary element or
core the depending end the sleeve
D secured conductor usually the
form disk with downwardly-extending
io teěth peripheral projections II. The combination with closed recepta- 75
cle, circuit-controller contained therein
and means for maintaining within said recep
tacle inert atmosphere under pressure.
M any suitable reservoir communicating
with the interior the main receptacle and
containing liquefied gas, such ammonia,
which maintains practically inert atmos-
33 phere under pressure the receptacle/
Preferably, though mainly matter of
convenience, the receptacle metal cup
with hollow central stem the opening
for the passage gas being controlled a
40 screw-valve the top the cup. The mass
and weight the rotating parts are greatly
65 reduced and very high speed rotation ob
tained with small expenditure energy.
7. The combination with circuit-control
ling mechanism, one part terminal which 83
is conducting fluid, such mercury, a
receptacle inclosing the same and means for
maintaining inert gas under pressure in
the receptacle. the
sleeve the disk also attached, but in
sulated therefrom, shaft having spiral
blade and extending down into well cy
lindrical recess the bottom the recepta-
15 cle.
4.
6. device for making and breaking an
electric circuit comprising, combination, 100
means for maintaining jet stream con
ducting fluid which constitutes one terminal,
a conductor conductors making intermit
tent contact with the jet and constituting the
other terminal and receptacle inclosing and 105
excluding oxygen from- the said terminals. with the conductor for maintaining a
circulation conducting fluid contained in
the receptacle through the nozzle nozzles, 115
the conductor and the fluid constituting re
spectively the terminals ofa circuit-controllei\
8.
2.
3. The combination with conductor se- 90
ries conductors constituting one terminal
of circuit-controller, means formaintaining
a stream jet conducting fluid the
other terminal with which the conductor
makes intermittent contact, close recepta- 95
cle containing the terminals, and means for
maintaining inert atmosphere under pres
sure the receptacle.
The receptacle and the conducting fluid,
43 which generally mercury, being normally
insulated from the head and the parts at
tached and supported thereby, are connected
to one part the Circuit controlled. The combination with closed recepta
cle, circuit-controller contained therein
and surrounded inert insulating me
dium under pressure. The combination with receptacle, of
a conductor series spaced conductors
mounted therein, motive device for rotat
ing said conductors, one moré nozzles for no
directing stream jet fluid against the
conductor, and force-pump direct con
nection.
The power required maintain the jets of
conducting fluid is, moreover, very small. One more ducts passages lead
from the bottom this well points near
the path the conducting-teeth II, that
by the rotation the screw conducting
fluid, which runs into the well from the recep-
20 tacle, will forced through the duct or
ducts, from which issues jet jets
against the rotating conductor.
To insure good electrical connection be
tween the sleeve and the spindle pro
vide the former small chamber which
contains mercury, and into this the end of
60 the spindle extends. The combination with closed recepta
cle, circuit-controller contained therein, 80
and vessel containing liquefied inert gas,
and communicating with the interior the
receptacle. The said
cup screwed onto the end the spindle
C, through which passage leading into
the interior the receptacle A.
5.
The special advantages this particular'
form circuit-controller heretofore referred
to will now more readily appear. The combination ofa casing, conductor
or series spaced conductors mounted there
in, motor for rotating the same, one more 120
ducts channels from receptacle contain
ing conducting fluid and directed toward
the conductors, and screw operated the
motor for forcing the conducting fluid through
the duct ducts against the conductors, the 123
conductors and the fluid constituting the ter
minals electric-circuit controller.
9.
Having now described invention, what
I claim is— 70
1.
The other circuit connection made con-
50 ductor any part the head, that
when the core and conductor are rotated
the circuit will completed between the
two insulated parts the receptacle through
the jet jets conducting fluid whenever
35 they impinge upon the said conductor. The combination with receptacle con
taining conducting fluid, conductor
mounted within the receptacle, means for ro- 130
tating the same, screw rotating with the
conductor and extending into well which
. facilitate
this operation, the well surrounded a
flange containing passages which per-
25 mit the conducting fluid flow from the re
ceptacle into the well, and having beveled
sides which serve shield deflect the
fluid expelled from the ducts through the
spaces the conductor the bottom the
30 receptacle
