Improvements in and relating to Electric Propulsion of Vehicles and Boats.
Year: 1892

page_text: Date of Application, 19th Apr., 1892-Accepted, 11th June, 1892
COMPLETE SPECIFICATION.
Improvements in and relating to Electric Propulsion of Vehicles
and Boats.
I, MARK WESLEY DEWEY, of Kirk Block corner of South Salina and
West Fayette Streets City of Syracuse, in the County of Onondaga, in the
State of New York, United States of America, Electrician, do hereby declare
the nature of my invention, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:—
My invention relates to propelling or moving vehicles, such as cars and boats,
electrically, and the object is to dispense with contact brushes, wheels, etc., in
electric connection with a conductor along the route of the vehicle, to allow the
employment of currents of great strength, or to avoid the necessity of employing
heavy and expensive batteries on the vehicle.
The invention consists in improved means for electrically communicating with a
vehicle to propel the same or to supply other translating devices thereon by
induction and without contact with the line conductor.
same.
The invention consists further in locating in the line conductor separate coils of
wire, distributed equal distances apart along the roadway, preferably beneath the
The said coils may be arranged in any suitable manner provided that they
or their cores are in proper inductional relation to the secondary coil carried by
the vehicle, and may be connected with the line circuit either in series or parallel.
Said coils may all be constantly in circuit or they may be included in circuit only
when the car is over them, or in suitable inductional proximity thereto.
The said coils being located in the primary circuit are termed primary coils,
and may be provided with solid or laminated paramagnetic or iron cores or bodies
of any desired form and the whole enclosed, insulated and protected as required, or
the coils may be without any cores in some cases.
In the accompanying drawings,
Figure 1 is a diagram of circuits and apparatus illustrating the primary coils
distributed along the path of a vehicle and connected in circuit in series,
Figure 2 shows laminated cores within the coils and having both of their poles
extended to the surface of the roadbed or in proximity thereto so as to approach
the poles of the core on the vehicle,
Figure 3 shows the primary coils connected in parallel, and circuit makers and
breakers in circuit with the coils operated by magnetic attraction from the car so
that the current can flow through a coil or coils only when a car is over or in the
vicinity thereof, whereby a great saving of energy is derived,
Figure 4 illustrates the manner in which the conductor and apparatus in circuit
therewith, is enclosed and protected, and illustrates also novel means for operating
the contact makers and breakers,
Figure 5 shows an end elevation of Figure 4,
Figure 6 is a modified form of a part of Figure 3,
Figure 7 shows a closed magnetic circuit formed of the cores of a primary and
secondary coil, and
Figures 8, 9 and 10 show respectively plan, side and end views, partly in section
of an electric railway equipped with my invention and magnetic contact made by
rails of track and wheels of vehicle.
It will be obvious that the apparatus may be widely varied without departing
from the spirit of my invention herein set forth and therefore I do not desire to be
limited to the specific arrangements shown and described.
Referring specifically to Figure 1 of the drawings, A represents a stationary
source of irregular or alternating-electric currents of suitable tension or strength,
and preferably in the shane

page_text: terminals of the dynamo is connected with a ground plate 9 and the other terminal
is connected with a conductor C leading through a suitable current regulator r
and extending along the route or path of a vehicle B which may be hereinafter
termed a car.
ccc represent coils of wire connected in the circuit C in series
and distributed apart, preferably equidistantly apart, along the path of the vehicle
or railway.
c¹ c¹ care cores of iron within the said coils arranged with their axes in a
direction at right angles to the surface of the roadbed A.
The terminus of the conductor is connected with ground plate g¹. Instead of
returning the current through the ground a return metallic conductor may be
employed. Upon the car B is carried a secondary coil S having a core S¹, the
axis of which is parallel with the axes of the primary cores. The secondary coil
is larger than the primary coils and may be formed of somewhat larger wire. The
cores of all the coils have their neighbouring poles el extended longitudinally to
allow the primary coils to be placed greater distances apart and thus decrease the
number of primary coils to a minimum. The poles of the primary coils may extend
to or in proximity to the surface of the roadbed and may in some cases extend
slightly beyond the surface. Solid cores are represented in this figure, but they
may be laminated to prevent cross currents and thereby increase their effect.
M represents an alternating current motor of suitable construction, and m denotes
a current controller or regulator, both connected in circuits with the coil S. The
motor M is connected with the driving axle a by a chain or belt but may be of
course arranged or connected with the vehicle for propelling the same in any other
suitable manner.
I do not limit myself to the extended poles of the core, or when
such extended poles are employed, to the size or length of the extension, or to the
length of the lap of the primary poles under the vehicle core, when the vehicle
coil is in a central position between two primary coils. Neither do I limit myself
to the single vehicle coil for it will be obvious that more than one may be
employed.
Referring now to Figure 2, A represents an alternating current dynamo, r the
regulator, C the line conductor extending along the road or path of the vehicle,
g and g¹ the ground plates at the ends of the road, ccc primary coils connected in
circuit C in series, and c' c¹ c', the cores or bodies of iron in the coils. The cores
are of paramagnetic metal, as iron, and are shown as laminated in this figure and
have their poles extended to, beyond or, in proximity to the surface of the roadbed,
and located on opposite sides of the center thereof and their bodies in proper
inductional relation to the coils surrounding them.
S and S represent a similar coil and core inverted, to be carried by a vehicle
as B in Figure 1. This coil and core is preferably much longer than a primary
coil and core, but the secondary coil may be of the same length or even shorter
than the primary coil.
When the vehicle coil and core is made long the primaries may be distributed a
greater distance apart thereby making the construction of the road less expensive.
As before stated the vehicle coil and core is inverted, but in other respects may be
the same or similar to a primary coil and core. The poles of said vehicle core are
therefore extended to or in proximity to the surface of the roadbed or to the poles
of the primary cores. By this arrangement a great inductional effect is derived as
the core on the vehicle or secondary core and the core or cores of the primaries
form almost a closed magnetic circuit.
A maximum effect, however, may be derived by attaching yielding iron rollers
or brushes t¹ to the poles of the secondary core to make contact with the poles of
one or more primary cores as illustrated in Figure 7, thus forming an entirely
closed magnetic circuit.
2
I do not limit myself to the length of the primary coil for it may extend the
entire length of the route if desired. It will be obvious also that the poles of the
cores of the primary coils may be provided with extensions c¹¹ as shown in Fig. 1,
thus allowing the coils to be placed further apart.

page_text: M represents the electric motor and m the current regulator on the vehicle
connected in circuit with the vehicle coil or secondary circuit, and 6 the belt to
connect the motor with the driving axle of the vehicle as in Fig. 1.
It will be obvious that a coil and core is not absolutely necessary on the vehicle
or car as a simple conductor carried in proper inductional relation to the primary
coils or cores, or both, of the line conductor, will be able to produce some effect
upon a translating device in clectrical connection therewith, but in order to derive
a very great amount of power on the vehicle the conductor is formed of a coil of a
great number of convolutions, and to still further increase the power the said coil
is provided with a magnetic core, and this core is laminated as hereinbefore
mentioued to increase its magnetic effect.
It is not absolutely necessary either to form the electric conductor on the vehicle
of a closed circuit for as alternating currents circulate in the same, a condenser of
suitable capacity, may be interposed in the circuit in some cases with good results,
and without diminishing the power of the current therein.
In Figure 3A indicates a suitable source of irregular or alternating electric
currents as an alternating current dynamo.
ccc are
C and C' represent line conductors extending therefrom along the road.
the primary coils and c' c' c¹ the cores. Although the cores of the coils are shown
in this figure as straight and not extended to or near the surface of the roadbed
it will be obvious that they may be arranged the same or similar to the arrange-
ment shown in Figure 2. The main difference, however, between the primary parts
of the Figures 2 and 3 is that the coils are connected with the circuit in parallel
or multiple arc and they are all normally out of circuit and consequently no current
flowing through them. Contact makers and breakers or switches e e e are placed
in the coil conductor, one for each coil and are designed to be automatically
operated by a suitable magnetic device carried on the vehicle which will attract
one or more of the switches in the vicinity of the vehicle to include one or more
coils beneath or in the vicinity of said vehicle, in circuit with the conductor, and
thus concentrate at the car and at no other part of the road, the inducing power.
These switches and the electric connections therewith may be greatly varied in
form and I therefore do not limit myself to the precise form and construction
shown, but will say, that in all cases a switch will consist essentially of a movable
part with a contact to make and break the circuit. The switches shown are
preferably made of paramagnetic material as iron, or the movable end thereof;
the opposite end is pivoted to a suitable support connected with one terminal of
the coil conductor and is preferably formed of non magnetic material and the other
or movable end is designed to be brought in contact when attracted with a
stationary contact connected with the other terminal of the conductor.
These switches are balanced or arranged so that they will be operated easily
and without great attractive power, and should be enclosed completely in suitable
watertight boxes as hereinafter more fully described.
The magnetic device upon the vehicle inay also be greatly varied. This figure
shows the device as a bar d of iron extending near and parallel to the surface of
the roadbed and in the same direction as the movement of the vehicle; supports d' d'
of iron, forming cores for coils ƒ ƒ in circuit with the vehicle conductor, support
said bar.
In order to magnetize the said bar to attract the switches, a direct current is
preferably employed, that is, the alternating current of the secondary circuit on
the vehicle is straightened or rectified by means of a suitable current rectifying
device indicated in the figure, and not necessary to be described herein more
fully.
The switch e beneath the car is shown as having been moved to include its coil c
in circuit, the other switches are open. When the car is between two switches
both will be attracted so that at no time will the supply of current cease.
As the currents on the vehicle are rectified, the usual continuous or direct current
motor M³ is employed to propel the vehicle.

page_text: D represents the current reverser for reversing the current through the armature,
thereby reversing the direction of rotation of the armature and likewise changing
the direction of movement of the vehicle, and E is an adjustable rheostat for
regulating the strength of the current flowing through the motor.
For the purpose of supplying the motor with current in case there is none flowing
through the main line, or a coil, for a time, for some reason or other, a secondary
battery F is provided on the car and arranged to be charged or connected with the
vehicle conductor alternately with the motor or whenever the motor circuit is
opened as when the vehicle is at rest, or, may be arranged to be charged
simultaneously with the operation of said motor or the flow of current therethrough.
The secondary battery may be employed for charging the magnetic device
magnets or for supplying other translating devices on the vehicle such as electric
lamps or heaters.
Gis a switch in the vehicle conductors s'leading from the rectifier for connecting
either the motor M' or secondary battery F in circuit and is shown connected with
the motor circuits", the secondary battery circuit 1 being open.
H is a switch for connecting the battery with the motor circuit, or magnetic
device circuit h, and i is an adjustable resistance in the magnetic device circuit for
regulating the current therein. The latter circuit extends from the rectifier to
the coils ff and is completed between the coils by the bar d. A suitable inductional
transformer or converter may be located in circuit on vehicle as indicated by the
dotted square to change the character of the current before passing through the
rectifier.
J represents iron plates that may be in some cases inlaid in the surface of the
roadbed above the movable parts of the switches e e e to help attract them, but
they may generally be dispensed with.
Figures 4 and 5, respectively, represent a side elevation and end view of a car
supplied with apparatus very similar to that shown in Figure 2, with the circuit
makers and breakers shown in Figure 3, and so far like letters of reference represent
like parts, a description of which is unnecessary inasmuch as it has been herein before
fully described, but will proceed directly to describe the differentiating features
thereof, which are mainly the form of the magnetic device on the vehicle for
operating the switches and the closed conduit containing the primary conductors,
coils, cores and switches.
The magnetic device in this case consists of a bar or cable of metal k as copper
or iron extending near and parallel to the surface of the roadbed and in the same
direction as the movement of the vehicle, and is included in a circuit of very low
resistance. This circuit or a portion of it is in inductional relation to the vehicle
conductor, coil or core, and thereby has induced in it a current of large volume,
which, although of an alternating character, and flowing through a diamagnetic
metal bar will produce a great attraction, because of the volume of the current
flowing therein. This low resistance circuit is placed in inductional relation to the
secondary coil S by having it encircle the coil as shown.
The primary conductors, coils, switches, etc., are all completely insulated through-
out the length of the road and are enclosed in a conduit of any suitable form which
may be greatly varied.
It will be sufficient, in a description of the same, herein, to say that each primary
coil with its core and switch and contact, (if the said coil has three parts in
connection with it) is enclosed in a box I of any suitable material, preferably non-
magnetic material, and sealed to make the same water-tight, so as to thoroughly
protect the apparatus enclosed. Lengths of pipe I¹ connect the boxes together
and with each other and contain the insulated conductor or conductors leading to
the apparatus in said boxes. Plugs t of iron may extend from the poles of the cores
within the boxes through the same to, or slightly above the surface of the roadbed
to bring the poles nearer to the poles of the vehicle core or to allow magnetic
contact between the said parts by means of brushes.
Figure 6 shows a modified form of means or connections for including the coils

page_text: along the road in the vicinity of the vehicle in circuit so that the current may flow
through the coil or coils to energize the same.
ce indicate the primary coils connected in the conductor C in series. oo represent
the shunt-paths around the coils, and containing the switches e e normally closed,
shunting the coils. p indicates the coil and magnetic device carried on the vehicle,
over one of said primary coils and switches e which is raised to break the shunt
around the coil c thereby allowing the said coil to be energized by the current
flowing through the same. These switches are intended to be operated in the
same manner and by the same means as hereinbefore described in relation to the
other figures.
Figures 8, 9 and 10 show a closed magnetic circuit or circuits obtained by
lengthening the cores c¹ of the primary coils c to make contact with the rails A
of the track upon which the vehicle B moves and forming the secondary coils S
around the axles which constitute, in this case, the cores S¹ of the coils. These
coils are shown connected in series in the vehicle conductors, but may be connected
in parallel. The secondary coils revolve with the axles, but this is not essential
as they may be held stationary. Stationary brushes n make contact with and bear
upon insulated metallic rings n' at each end of the coils. These rings are connected
with the terminals of the wire forming the coil. By this plan the primary coils
may be distributed a much greater distance apart. Said primary coils can be
connected with the circuit in any suitable manner as illustrated in the other figures
of the drawing.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is :
1-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the way
and connected with the conductor, a vehicle, a conductor on the vehicle in suitable
inductional relation to the coils, and a translating device connected with the latter
conductor.
2-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, a vehicle, a secondary
circuit on the vehicle in suitable inductional relation to the coils, and an electric
motor in the secondary circuit to move the vehicle.
3-In an electric induction-railway, a source of irregular or alternating currents,
a conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, a vehicle, a secondary
circuit on the vehicle in suitable inductional relation to the coils, and an electric
motor to move the vehicle, and controlling devices in the secondary circuit.
4-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, a paramagnetic core or
body for each of said coils, a vehicle, a secondary circuit on the vehicle in suitable
inductional relation to one or more of said cores or coils, and a translating device
in the secondary circuit.
5-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, an iron core or body
within each of said coils, a vehicle, a secondary circuit on the vehicle in suitable
inductional relation to one or more of said cores or coils, and an electric motor in
the latter circuit to move the vehicle.
6-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, iron cores within said coils
and having enlarged poles extending beyond the ends of the coils, a vehicle, a

page_text: secondary circuit on the vehicle in suitable inductional relation to one or more
of said cores or coils, and an electric motor in the latter circuit to move the
vehicle.
7-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the
railway and connected with the conductor, a laminated iron core or body for each
of said coils, a vehicle, a conductor on the vehicle in inductional relation to one or
more of said cores or coils, and a translating device connected with the latter
conductor.
8-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the
railway and connected with the conductor, a laminated iron core or body for each
of said coils, a vehicle, a conductor on the vehicle in inductional relation to one or
more of said cores or coils, an electric motor to move the vehicle in electrical
connection with the latter conductor, and controlling devices.
9-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the
railway and connected with the conductor, a core or body of iron for each of said
coils having poles extended to, beyond, or in proximity to the surface of the road-
bed, a vehicle, a conductor on the vehicle in suitable inductional relation to one or
more of said cores or coils, and an electric motor to move the vehicle, in electrical
connection with the latter conductor.
10-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils, distributed apart along the
railway and connected with the conductor, a core or body of iron for each of said
coils in inductional relation to the latter, and having its poles extended to, or in
proximity to the surface of the road bed, but located on opposite sides of the center
thereof, a vehicle, a conductor or the vehicle in suitable inductional relation to one
or more of said cores or coils, and an electric motor to move the vehicle, in electrical
connection with the latter conductor.
11-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the railway
and connected with the conductor, a core of iron within each of said coils, and
having its poles located on opposite sides of the center of the road-bed, a vehicle, a
conductor on the vehicle in suitable inductional relation to one or more of said
cores or coils, and an electric motor to move the vehicle, in electrical connection
with the latter conductor.
12-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, a paramagnetic core or
body within each of said coils in inductional relation to the latter, a vehicle, a
conductor on the vehicle in inductional relation to both the cores and coils, and
an electric motor to move the vehicle in electric connection with the latter
conductor.
13-In an electric induction railway, a source of irregular or alternating currents,
a line conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, a core of iron within each
of said coils, and having its poles located on opposite sides of the center of the
roadbed, a vehicle, a secondary coil upon the vehicle, a core or body of iron for the
latter coil in inductional relation to both the core and coils of the line conductor,
and an electric motor to move the vehicle in circuit with the secondary coil
conductor.
14-In an electric induction railway, a source of irregular or alternating currents,
a line conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, a core of iron within each
of said coils having its poles extended to or in proximity to the surface of the
roadbed, but located on opposite sides of the center thereof, a vehicle, a secondary

page_text: coil
upon the vehicle, a core of iron within the latter coil having its poles extended
to or in proximity to the poles of the primary cores and in inductional relation
therewith, and an electric motor to move the vehicle in circuit with the secondary
coil conductor.
15-In an electric induction railway, a source of irregular or alternating currents,
a line conductor extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor, a laminated core of iron
within each of said coils having its poles extended to or in proximity to the surface
of the roadbed, but located on opposite sides of the center thereof, a vehicle, a
secondary coil upon the vehicle, a laminated core of iron within the latter coil
having its poles extended to or in proximity to the poles of the primary cores and
in inductional relation therewith, and an electric motor to move the vehicle, in
circuit with the secondary coil conductor.
16-In an electric railway, a source of irregular or alternating currents, a
conductor or conductors extending therefrom along the way, a laminated para-
magnetic core or body having its poles located one on each side of the centre of
the road-bed, a vehicle, a conductor on the vehicle in suitable inductional relation
to the core, and a translating device connected with the latter conductor.
17 In an electric induction railway, a source of irregular or alternating currents,
conductors extending therefrom along the railway, a series of coils distributed
apart along the way and connected with the conductor in multiple arc, a vehicle, a
conductor on the vehicle in suitable inductional relation to the coils, and a motor
to move the vehicle, or other electric translating device, connected with the latter
conductor.
18-In an electric induction railway, a source of irregular or alternating currents,
conductors extending therefrom along the railway, a series of coils distributed
apart along the way in multiple are connection with the conductors, but normally
out of circuit, a circuit maker and breaker for each of said coils, a vehicle, a
conductor on the vehicle in suitable inductional relation to the coils, a magnetic
device on the vehicle to operate the circuit makers and breakers to include one
or more coils in the vicinity of the vehicle in circuit, and a motor to move
the vehicle, or other electric translating device, connected with the vehicle
conductor.
19-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the way
and connected with the conductor, but normally out of circuit, a circuit maker and
breaker for each of said coils, a vehicle, a conductor on the vehicle in suitable
inductional relation to the coils, a magnetic device on the vehicle to operate one
or more of the circuit makers and breakers to include one or more coils in circuit
in the vicinity of the vehicle, and a motor to move the vehicle or other electric
translating device connected with the vehicle conductor.
20-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the way,
and connected with the conductor, but normally out of circuit, a circuit maker and
breaker for each of said coils, a vehicle, a conductor on the vehicle in suitable
inductional relation to the coils, a magnetic device in circuit with an electric
conductor on the vehicle to operate one or more of the circuit makers and breakers
to include one or more coils in circuit in the vicinity of the vehicle, and a notor
to move the vehicle, or other electric translating device connected with the vehicle
conductor.
21-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the way,
and connected with the conductor, but normally out of circuit, a circuit maker and
breaker for each of said coils, a vehicle, a conductor on the vehicle in suitable
inductional relation to the coils, a magnetic device consisting of a bar of metal
included in a circuit of very low resistance in inductional relation to the conductor
on the vehicle to operate one or more of the circuit makers and breakers to

page_text: include one or more coils in circuit in the vicinity of the vehicle, and a motor to
move the vehicle, or other electric translating device, connected with the vehicle
conductor.
22-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the way
and connected with the conductor, but normally out of circuit, a circuit maker and
breaker for each of said coils, a vehicle, a conductor on the vehicle in suitable
inductional relation to the coils, a magnetic device on the vehicle consisting of a
magnetic bar extending near and parallel to the surface of the roadbed and in the
same direction as the movement of the vehicle, to operate one or more of the
circuit makers and breakers to include one or more coils in circuit in the vicinity
of the vehicle, and a motor to move the vehicle, or other electric translating device,
connected with the vehicle conductor.
23-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom a series of coils distributed apart along the way
and connected with the conductor, a vehicle, a secondary circuit entirely on the
vehicle in suitable inductional relation to the coils, a current rectifier in the latter
circuit to straighten the currents therein, and an electric motor to move the
vehicle, or other electric translating device thereon, connected in the latter
circuit.
24-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, one or more coils distributed apart along the way
and connected with the conductor, a vehicle, a secondary circuit entirely on the
vehicle in suitable inductional relation to the coils, a current rectifier in the latter
circuit to straighten the currents therein, and a continuous or direct current motor
to move the vehicle connected in the latter circuit.
25-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the way
and connected with the conductor, a vehicle, a secondary circuit on the vehicle in
suitable inductional relation to the coils, a current rectifier in the latter circuit to
straighten the currents therein, a continuous or direct current motor to move the
vehicle connected in the latter circuit, and a secondary battery on the vehicle
adapted to be connected in the latter circuit.
26 In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the way
and connected with the conductor, a vehicle, a secondary circuit on the vehicle in
suitable inductional relation to the coils, a current rectifier in the latter circuit to
straighten the currents therein, a continuous or direct current motor to move the
vehicle, a secondary battery on the vehicle and a switching device for including the
motor and battery in the latter circuit alternately.
27-In an electric railway, a source of irregular or alternating currents, a
conductor extending therefrom, a series of coils distributed apart along the way
and connected with the conductor, but normally out of circuit, à circuit maker and
breaker for each of said coils, a vehicle, a conductor on the vehicle in suitable
inductional relation to the coils, a magnetic device on the vehicle in circuit with an
electric conductor to operate one or more of the circuit makers and breakers, a
current rectifier on the vehicle for straightening the currents in the conductor
thereon, and a motor to move the vehicle, or other electric translating device
connected with the vehicle conductor.
28-In an electric induction railway, a source of irregular or alternating currents,
one or more entirely insulated conductors extending therefrom along the railway,
a vehicle, a secondary circuit entirely on the vehicle, in suitable inductional
relation to said conductors, a current rectifier in the latter circuit, and a continuous
or direct current motor also in the said circuit.
29 In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the
railway and connected with the conductor, a core or body of iron for each of said

page_text: coils having poles extended to and in contact with the rails of the track, a vehicle,
a body of iron carried by the vehicle in contact with the rails, a co nductor on the
vehicle in inductional relation to the body of iron, and an electric motor to move
the vehicle, in electric connection with the latter conductor.
30-In an electric induction railway, a source of irregular or alternating currents,
a conductor extending therefrom, a series of coils distributed apart along the
railway and connected with the conductor, a core or body of iron for each of said
coils having poles extended to and in contact with the rails of the track, a vehicle,
iron axles and wheels for the vehicle to move on the rails, one or more coils on the
vehicle in inductional relation to the axles and an electric motor to move the
vehicle and in circuit with the coils.
31-The combination of a car or vehicle, movable along a given path, a series
of magnetic cores placed at intervals along said path or line of travel, coils
surrounding said cores and connected with a source of alternating currents, a
magnetic core carried by the car in close proximity to, or in contact with the poles
of the stationary cores, a secondary conductor wound thereon, and an electro
magnetic motor on the car and for propelling the same, and connected in circuit
with the secondary conductor.
Dated this 90th day of ML 1900
MARK WESLEY DEWEY.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.