thereof to wheeled vehicles or Rolling Stook.
Year: 1887

page_text: Date of Application, 17th May, 1887
Complete Left, 17th Mar., 1888
Complete Accepted, 16th June, 1888
thereof to wheeled vehicles or Rolling Stook.
I, WILLIAM HOPKIN AKESTER, of No. 41, Reporton Road, Walham Green,
Middlesex, Electrician do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in electro-propulsive motors (the motor is
hereinafter referred to as the "apparatus") and in the application thereof to wheeled
vehicles or rolling stock. An especial object of the present improvements is to so
construct and adapt the apparatus that it may be applied to such vehicles without
necessitating alteration of their construction, and that it will be caused to constitute
a kind of bogie frame supported by, and connecting, the axles of the wheels of the
vehicle, and also that it will be independent of attachment to the body of the latter.
Such apparatus has hitherto been usually attached to the under part of the body of
the vehicle, and this method of applying it necessitates a specially strong construction
of the vehicle, or, when applying the apparatus to existing vehicles it necessitates the
taking apart and specially strengthening of such vehicles. Apart from the above, it is
found that when the apparatus is thus applied other disadvantages occur, for instance
the body of the vehicle assumes different positions in relation to the axles upon which
the motor acts, and loss of power, due to backlash of the gearing and to other
attendant results, is consequently caused.
The apparatus forming the subject of the present invention, not being attached to
the body of the vehicle, is uninfluenced by any variation in the position of the same,
and retains a constant position in relation to the axles upon which it works, whereby
the great disadvantage lastly referred to is entirely avoided.
In carrying out the present invention, I construct the motor with two armatures
on the same shaft and provide it with opposite side plates suited to the vehicle (as
regards the construction and disposition of its axle boxes) to which it is to be applied,
adapting such side plates for carrying the acting parts of the motor between them,
which parts I adapt to serve as the means of connecting the side plates together in
proper position as regards the distance apart of the wheels of the vehicle, preferably
so constructing the side plates that they fit between the wheels and their respective
Paine 8771

page_text: axle boxes, or, they may be so arranged as to be disposed externally of the axle boxes.
On their outer (or inner as the case may be) sides, the side plates are provided with
lugs or extensions so situated and disposed as to accord with the positions of the
axle boxes, and they are so formed as to be capable of entering the latter, the arrange-
ment being such that the said extensions of the side frames, which rest upon the
brasses bearing on the journals of the axles, are carried or situated between such
brasses and the straps or parts of the bearings to which the springs supporting the
vehicle are applied, so that the parts are all retained in position by the weight of
the body of the vehicle, which when being adapted with such means of propulsion, can
be lowered on to the before mentioned bogie frame, when the said extensions enter the
axle boxes, thereby securing the whole in position.
The said side plates form part of the motor and for the purpose of connecting
such side plates I arrange the field magnets in a horizontal plane parallel with and
on each side of an armature shaft similarly disposed, and prolong the cores of such
field magnets and the armature shaft at both ends to the desired extent so that the
said plates are held apart, as desired, by the extensions of the field magnets and are
bolted thereto, the armature shaft being left free to revolve in a bearing in the side
plates.
The pole pieces of the field magnets are, in some cases, constructed in the following
manner. Each magnet is formed of the same diameter throughout except at the ends
which are reduced to facilitate their attachment to the side plates and end frames of
the motor. Washers are placed on those parts of the magnets where the poles are
required and the coils are wound to or about the same diameter as the washers, the
poles are then passed on to the magnet and secured to the washers. The poles are
of greater width than the said washers, the consequence being that a recess exists at
each side of the former within which are portions of the respective coils.
The driving pinion or pinions are preferably V-geared, and are secured upon the
armature shaft adjacent to its end parts within its bearings in the side plates, thus
leaving the armature shaft free from strain, and the driving pinion or pinions are
connected by duplicate reducing gear with the axles of the vehicle.
The side frames are, in some cases, continued beyond the axles towards one or both
ends of the vehicle, and are adapted to serve for the purpose of receiving and carrying
accumulators and are provided with such connections as are required for connecting
the accumulators to the switch of the motor.
Dated this Seventeenth day of M. 1007
VAUGHAN & SON,
Agents for the Applicant.

page_text: thereof to Wheeled Vehicles or Rolling Stook.
I, WILLIAM HOPKIN AKESTER, of No. 37, Bishop's Terrace, Fulham, in the
County of Middlesex, Electrician, do hereby declare the nature of this invention
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
My said invention relates to improvements in electro-propulsive motors (the motor>
is hereinafter referred to as the apparatus) and in the application thereof to wheeled.
vehicles or rolling stock. An especial object of the present improvements is to so con-
struct and adapt the apparatus that it may be applied to such vehicles without
necessitating alteration of their construction, and that it will constitute a kind of bogie
frame supported by, and connecting, the axles of the wheels of the vehicle, and also?
that it will be independent of attachment to the body of the latter.
In applying electro-propulsive motors to vehicles it has hitherto been usual to attach
the apparatus to the under part of the body, and this method of applying it necessi-
tates a specially-strong construction of vehicle, or, when applying the apparatus.to.
existing vehicles, it necessitates the taking apart and specially strengthening of such
vehicles. Apart from the above disadvantage it is found that when the apparatus is
thus applied other disadvantages occur, for instance, the body of the vehicle, when
travelling, assumes different positions in relation to the axles upon which the motor..
acts thereby causing loss of power, due to backlash of the gearing and to other
attendant results. The apparatus forming the subject of the present invention,. not.
being attached to the body of the vehicle, in uninfluenced by any variation in the
position of the same, and retains a constant position in relation to the axles with
which it is geared, whereby the great disadvantage, lastly referred to, is entirely.
avoided.
In carrying out the present invention, I construct the motor with two or more.
armatures on the same shaft and provide it with opposite side plates suited to the
vehicle (as regards the construction and disposition of its axle boxes) to which it is.
to be applied, adapting snch side plates for carrying the acting parts of the motor
between them, which parts I adapt to serve as the means of connecting the side plates >>
together in proper position as regards the distance apart of the wheels at the respective
sides of the vehicle, preferably so constructing the side plates that they fit between
the wheels and their respective axle boxes, or, they may be so arranged as to be:
disposed externally of the axle boxes. On their outer (or inner, as the case may be).>
sides, the side plates are provided with lugs or projecting pieces so situated .and.
disposed as to accord with the positions of the axle boxes, and so formed as to be.
capable of entering the latter, the arrangement being such, that the said projecting..

page_text: pieces of the side frames rest upon the brasses bearing on the journals of the axles
and are carried or situated between such brasses and the straps or parts of the bearings
to which the springs supporting the vehicle are applied so that the parts are all
retained in position by the weight of the body of the vehicle, which, when being
adapted with such means of propulsion, can be lowered on to the before mentioned
bogie frame, when the said extensions enter the axle boxes, thereby securing the whole
in position.
The said side plates form part of the motor and for the purpose of connecting such
side plates I arrange the field magnets in a horizontal plane parallel with, and on
each side of, an armature shaft similarly disposed, and I prolong the cores of such
field magnets, and, in some cases, the armature shaft, at both ends to the desired
extent so that the said plates are held apart, as desired, by the said extensions of the
field magnets and are bolted thereto, the arinature shaft being left free to revolve in
suitable bearings in the side plates.
Motion is transmitted from the armature shaft to one or both shafts of the travelling
wheels, through the medium of pinions, by preference V-geared, or worins and
pinions, or any suitable mechanical equivalents therefor.
The side plates are, in some cases, continued at one or both ends sufficiently beyond
the axles of the travelling wheels towards one or both ends of the vehicle, to serve
the purpose of receiving and carrying accumulators, in which case they are provided
with such connections as are required for connecting the accumulators to the switch.
of the motor.
In the accompanying drawings, Figure 1. is a plan of the motor, Figures 2. and 3.
are respectively end and side views of the same, Figure 4. is a detached side view of
one of the travelling wheels showing the lug or projecting piece of the frame in
position, and Figure 5 is a section through the line x. y. Figure 4. The same letters
of reference indicate like parts in all the said Figures. A. A. are the cores of the
field magnets and a. a are the extended ends thereof, B. is the armature shaft and
b. b. the ends of the same, which, are here illustrated extended to the side plates,
C. C. are the commutators, c. c. are the brushes and c¹ are terminals for coupling up to
the switch, care also terminals for making connections at the opposite ends of the
connecting pieces c³; the side plates which carry the acting parts of the motor are
shown at D. D. and arranged between the travelling wheels and their axle boxes;
d. d. are the before mentioned lugs or projecting pieces. In the said figures the
armature shaft is shown geared with both shafts of the travelling wheels of the vehicle
at each side. The pinions E. which are keyed on to the armature shaft gear into the
pinions F. mounted loosely on the shafts of the field magnets, and the pinions F. gear
into the pinions G. on the shafts of the travelling wheels H.
Although the working parts of the motor are illustrated in the accompanying
drawings as being constructed in a particular manner, I do not desire to confine this
invention to such construction, as the said working parts may be of any suitable form
so long as the parts thereof can be conveniently connected together and carried by the
side plates D. D., as hereinbefore described.
This invention relates further to the following improvements in the field magnets of
electro-propulsive machinery. Washers or rings are placed on those parts of the
magnets where the poles are required and the coils are wound to, or about, the same
diameter as the washers, the pole-pieces are then passed on to the magnet and secured.
to the washers or rings. The pole-pieces are of greater width than the said washers
or rings, the consequence being that a recess exists at each side of the former within
which are portions of the respective coils.
Figure 6. is a top view, partly in section, of two pole-pieces constructed in
accordance with this part of my said invention A. is the washer or ring on the core
of the magnet, B. B. are the coils at the sides of the same, C. is the pole-piece,
and c. the pin securing the pole-piece to the said washer or ring A. One advantage,
obtained by constructing the magnet in the manner lastly described, is that it allows
of the pole-piece being placed in position after the coils have been wound.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what 1
claim is :-
First. The construction of electro-propulsive motors with side plates (having lugs
or projecting pieces) by means of which the acting parts of the motor are coupled
together and carried so as to be readily adapted to vehicles, substantially as herein-
before described.
And Secondly. The improvements in the field magnets of electro-propulsive
machinery, consisting of the washer or ring A, coils B. B. and pole piece C, the whole
being constructed and arranged substantially as hereinbefore described and shown in
the accompanying drawings.
Dated this Seventeenth day of March 1888
VAUGHAN & SON,
Agents for the Applicant.