upon which bear
50 brushes these parts being arranged con
stitute electromagnetic motor with sta
tionary field and rotating armature.
The same bracket also carries series com
mutator segments .
In application filed June 3,
io 1897, Serial No.
;be stated that any cither suitable means may
be employed rotate the receptacle and the
fluid.
To operate the apparatus, the receptacle is
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borough Manhattan,in the city,county, and
State New York, have invented certain new
S and useful Improvements Circuit-Control-;
lers, which the following specification,
reference being had the drawings accompa
nying and forming part the same. '. The
inclination ofthe axesofrotation necessary for
this result may substantially that shown
and should not materially greater, for the
reason that especially advantageous to
preserve the spindles, and bearings nearly
as practicable vertical account lesser
friction and easier lubrication. shield or
screen incloses the vanes, except the
side adjacent the inner periphery the
receptacle ,
A small quantity conducting fluid is
placed the receptacle, and order se
cure good electrical connection between the
vanes and terminal the outside the
receptacle small mercury-cup metallic
contact with the vanes through the bracket
L and socket secured the weight K. may.
As means producing the proper rota
tion the receptacle have shown field-
45 magnet mounted secured the base
D, and armature supported bracket
G from the under side the receptacle A. 673,558, (H
om
odel,)
To all whom may coTicern:,
Be known that!, Nikola Tesla, tlie. suitable pro
vision made oppose prevent the rota
tion the spindle during the rotation of
the receptacle. have devised for this pur
pose the following:
The spindle held its bearings an
angle the vertical,and weightK secured
eccentrically the spindle and tends hold
the said spindle always one position.
Attached the spindle weight an
insulated bracket carrying standard or
socket which mounted antifriction-
bearings spindle Secured this latter
is plate with radial arms from which de
pend vanes blades with projections Q
extending radially therefrom.
SPECIFICATION forming part Letters Patent No.
In the accompanying drawings, Figure is
vertical central section the improved cir
cuit-controller, and Fig. top plan view of
the same with the top cover the recep-
35 tacle removed. The socket secured or
forms part base stand D.
The operative portions the circuit-con
trolling mechanism are contained closed
cylindrical receptacle iron steel,
mounted spindle suitable socket
40 support Cto permit freely and rap
idly rotated.
ELECTRIC-CIRCUIT CONTROLLER. Serial H
o.
The invention which present appli
cation based improvement devices
2o this particular class, and has primarily as
its object the production circuit-con
troller which independently-mounted
terminal operated similar manner a
rotating body conducting fluid may in-
25 closed within gas-tight receptacle. 639, 227,1 have shown and de--
scribed device for making and breaking an
electric circuit comprising rotary receptacle
containing conducting fluid and terminal
mounted within but independently the re-;
tS ceptacle and caused the rotation the
latter make and break electrical contact
with the fluid.
The invention comprises features con
struction which this object practically
secured and certain improvements applicable
to this and other analogous devices, will be
30 more fully hereinafter set forth.■■■■ ,
In the spindle and concentric with its
axis spindle bearings specially con
structed reduce friction order that the
spindle may little possible influ
enced the rotation the main spindle and
receptacle carried thereby.
A metal stud set insulated bolt W,
projects into the cup through packed
opening its cover. 609,247, dated August 16, 1898.
ApplicationfiledM
aroh12, 1898. One terminal the cir-
cuit-controlling mechanism will thus any
part the metal receptacle and the other
the insulated bolt The apparatus maybe
connected circuit connecting tlie
wires the circuit brush bearing on
the bolt and binding-post contact
with the base D.nited States 'Patent Office.
N Y
