A
small quantity grains conducting ma- 70
terial, such oxidized metal, placed in
the cylinder.any kind, according the nature the
uses which applied. will evident that a
half-revolution the spindle will wind up
the spring and the same time raise or
lower the lever h", and these párts are ar
ranged that just before the half-revolution 115
the spindle completed the pin i', engage
ment with projection stop-pin with
drawn from its path, and the cylinder obey
ing the force the spring suddenly
turned end for end, its motion being checked 120
by the other pin i'. and 10) comprises a
40 terminal E', conductor C', sensitive device
AVand conductor A", leading the ground
conveniently through connection the
metal keel the vessel. and consists metal
cylinder with insulating-héaďs cř, through
which passes central metallic rod c".
The receiving-circuit proper (diagrammat-
ically shown Figs. These defects have found to
. metallic strip secured to
an insulated post d", bears against the side
of the cylinder connecting with the con
ductor C', forming one part the circuit.
The sleeve bon rod gear, through
25 the cog-wheels and H", with spindle G,
mounted vertical bearings the stem of
the boat and carrying the rudder F'.
The arrangement just described has been 130
the result long -experimenting with the ob
ject overcoming certain defects devices
of this kind, which reference has been
made before.always the path pro
jection arm They operate prevent
the turning cylinder with the spindle no
and the eccentric. important insulate very
well the conductor whatever manner it
50 Supported.
of the instrument and the other part of
the circuit through the forked metal arm e,
the ends which are fastened with two nuts
to the projecting ends the rod, which 80
means the cylinder supported.
The circuit path just referred forms
also part local circuit, which latter in
cludes relay-magnet and battery o', the
\ electromotive force which is, before ex-
55 plained, determined that although the di
electric layers the sensitive device are
subjected great strain, yet normally they
withstand the strain and appreciable cur
rent flows through the local circuit; but when
6o electrical disturbance reaches the circuit
the dielectric films are broken down, the re
sistance the device suddenly and
greatly diminished, and,a current traverses
the relay-magnet A.the op
eration both the propelling and steering
30 mechanisms controlled involves, primarily,
a receiving-circuit, which for reasons before
stated preferably both adjusted and ren
dered sensitive the influence waves or
impulses emanating from remote source,
35 the adjustment being that the period of
oscillation the circuit either the same as
that the source harmonic thereof. The armature-lever this mag
net fixed rock-shaft/", which se
cured anchor-escapement which con- ,90
trols the movements spindle driven by
a clock-train The spindle has fixed /
it disk with four pins b", that for each
oscillation the escapement the le/
is turned through one-quarter revolu- 95
tion. but such provisions are not always
necessary.is pivoted the end
of eccentric h', and the-eccentric and said 105
arm are connected spiral spring Two
pins %
' extend out from the lever h"y and
one these is.
Referring Figs.
The apparatus means which.
65 The particular sensitive device employed
is shown genera) views and detail in
'■ Figs. 75
The central rod connected the frame <.809
eating conventionally certain parts well-
understood character. The end the former spindle ex
tends through the side the frame) and car- 100
ries eccentric cylinder h', which passes
through slot lever h", pivoted the
side the frame. The adjustment rela
tively armature/' magnet/ further
more made that the pin withdrawn at
the moment when the armature has nearly
reached its extreme position its approach 125
toward the magnet—that is, when the lever I,
which carries the armature almost touches
the lower one the two stops Fig; 5—
which limits its motion both directions.
In order interrupt' the flow battery-
current which started through the action
of the sensitive device A', special means are •
provided,which are follows: Tbearmature 85
e' the magnet when attracted the lat
ter, closes circuit containing battery and
magnet/. and designates any
type vessel vehicle which capable of
5 being propelled and directed, such boat,
a balloon, carriage. One the spindles the clock-train,
as geared make one-half a
revolution for each quarter-revolution spin
dle g'. may designed
to carry suitable compartment objects
of .618. The fdrked arm which
supports the cylinder e,. The ves-
*o sel“-in this instance boat—is provided with
1editable propelling machinery,which shown
as comprising screw-propeller secured to
the shaft ofan electromagnetic motorD,which
derives its power from storage batteries E
IS addition the propelling engine or
motor the boat carries also small steering-
motor the shaft which extended be
yond its bearings and provided with worm
which meshes with toothed wheel This
2o latter fixed sleeve freely movable on
a vertical rod and rotated one the
*other direction, according the direction of
rotation the motor F. The terminal E'
should present large conducting-surface
45 and should supported high practica-
, ble astandard which shown asbroken
in Fig
