An Improved Method and Means for Transmitting or Converting Power or Movement between Parts of Machines and the like
Year: 1895

page_text: Date of Application, 3rd May, 1895
Complete Specification Left 25th Jan 1896-Accepted, 2nd May, 1896
An Improved Method and Means for Transmitting or Converting
Power or Movement between Parts of Machines and the
like
I, ADOI PH KOLBE of 67 Zeil, Finkfort-on the-Mun in the Empire of
Germany, Merch int, do hereby declare the nature of this invention to be as
follows
-
This invention has for its object a kind of electric and magnetic "coupling' to
be employed for transmitting energy of movement between two or more parts of a
machine in place of the mechanical conveyance by means of gearing, friction
couplings, intercalary mechanisms, crank geing and the like hitherto employed
The essence of the invention con ist in the working part being "connected "
with one of the operated electric or magnetic parts which produce a magnetic field
by action from a distance and not by contact, the latter influencing the former
or vice versa in such a way that mutual action takes place between the two
part
Some examples will now be described
Tike the case where the rotation of shaft is to be transmitted to anotner
shaft, that is, rotary movement is to be converted into another rotary movement
In this case a disc shaped magnet is arranged in place of the driving toothed wheel
which magnet is excited in the ordinary manner by means of a coil, so that at the
circumference N and S poles are produced and a ragnetic field therefore results in
the intermediate spice Between the magnetised edges of the discs in place of
the driven toothed wheel on the second shift there is ranged a copper disc or in
ron disc with a suitable short cu cuited coil ns in the so called asynchionic
alternating current motors It is evident that with a suitable form of construction
the lines of force flowing from the magnetic disc carly with them the armature
disc and thus a tiansmission of movement is obtained The conversion of
reciprocating movement into rotary movement is effected from the first arrangement
by increasing the diameter of the armature disc into an unlimited diameter and
utilising only a section of said armature with movement in a straight line 1 hus,
for instance, the invention may be applied to a steam engine with cylinder, piston
and piston rod On the latter an imature is ranged which corresponds to the
aforesaid armature disc which armature moves between the poles of two magnet
wheels
Two magnet wheel, are here provided because the alteration in the direction
of movement of the aimature is nece sary and work is obtained by the reciprocating
or to and fio movement, for the same reason in this seco id case a reversing device
must also be employed The operiting armature consists in this example of two
parts of sub divided iron with coil lying in grooves or bores like the terminal
armatures of alternating curient motors The one part of this arm iture moves
in the magnetic slot of one wheel and in the other part in that of the other wheel
The current circuit of one part of the armature is first closed on 1 movement of
the piston to the right and that of the other part on a movement of the piston
to the left The means for effecting the switching or closing of the circuits may, as
is well known, be of various kinds and also they may be operated in various ways
For instance, bv meins of agis pre sure measuring apparatus, a cylinder with

page_text: piston or diaphragm which effects the reversals or changes according to the
pressure of the working fluid, or the closing of the circuit is produced according
as the operating armature is pulled or pushed Use may also be made of
the direction of current in the armature the armature will in fact, as is easily
seen, alternate as soon as the operated and operating parts change their rôles on the
cessation of the expansive force in the cylinder towards the end of the stroke If
a suitably constructed relay be therefore placed in the circuit of the at nature (or
of a part of the armature coil) this relay may cause the reversal of movement
directly or induectly in various ways Mechanical regulating gear or the like
similar to that of water column machines or pumps and adjustible to suit all cases,
are preferably employed Apparatuses for measuring the speed, resembling
pendulum regulators (in gas engines) may be employed for connecting oi
disconnecting the contacts
In another mode of construction of the circuit closing device, the iron cores of
the armature have severil copper bars let into them which are connected by
means of a copper bar on the side turned towards the shafts of the two magnet
wheels employed in this case, the ends of these bars which are formed as contact
heads project on the inner side and according to the direction of movement of the
piston a cential movable contact bar between the two parts of the armature is
placed on the bars of one or other of the parts by means of one of the above
mentioned controlling devices It is evident that both magnet wheels may be
coupled either by crank gealing or by means of cogwheels, bults, clectrical
conveying devices or the like As in almost all cases the driving speed will alter
between two dead points it is preferable to allow the short counting to take place
only when the circumferential speed of the magnet wheels coincides with the speed
of the armature, or the period of induction or of the closing of the circuit is made
shorter than the stroke of the piston, as is easily comprehensible
We come now to the enumeration of at least a portion of the many possible
modifications all of which cannot be mentioned in view of the limited space of a
Patent Specification First, the magnet wheels and the aimature may be inter-
changed in case it be desired to convert reciprocating into rotary movement (or
vice versa), the reciprocating part may be a magnet with an exciting coil fed
from a source of electricity The rotating part is then a copper disc or an iron
disc with short cu cuit coils the regulation takes place in either the magnet or the
armature in different ways
The
The excitement of the magnets may also take place by means of alternating
current instead of constant current The armature coils may lie in grooves or
bores of the preferably subdivided core in circuits corresponding to any of the
field arrangements of magnets known and employed in electric il machines
magnets (for instance the magnet wheels) may have projecting poles on the side
facing the armature or the exciting coils may be so arranged that alternite poles
result In order in the latter case that it may not be necessary to excite all the
maguet poles but only those which directly act on the armature, one end of each
coil may lead to a friction ring, the other to the bars of a curient divider or
commutator whilst suitably arranged brushes surve for conveying the current
thereto
If as hereinbefore mentioned the magnet has a circular field, it is necessary to
employ so called checking coils, these prevent any spreading of the lines of force,
and cause the magnets to take part in the rotation produced by means of the
rotating or reciprocating armatures, as secondary currents are induced in these
short circuited coils by ench novement of the lines of force of the poles, which
coils enclose or limit the lines of force For the same object the surfaces of the
poles may also be entirely covered with a layer of good conducting material
Similar checking devices may also be employed with reciprocating ningnets These
said coils may be suitably interrupted or closed for the purpose of regulating or
removal of the electric coupling
" Thus in the case of a common operating
armature for tv o magnet wheels, the checking coils of one magnet wheel would be
6

page_text: clo ed when the piston so moves to the right, and those of the other magnet
wheel would be closed when the piston moves to the left instead of regulating the
operating armature
The removal or interruption of the electric "coupling" may also be effected
by de-magnetising the magnets, for instance, by interrupting the excitement by
means of a counter current in a secondary coil and so forth For instance only
one magnet wheel may be excited in order to cause the piston to go to the right,
whilst for the return the other magnet wheel would be excited thus a single
operating armature suffices If the two magnet wheels be excited in such a way
that the currents induced in a common armature mutually counteract one another,
Such also will be
the action of the magnet wheels upon the armature ceases
the case where two operating armatures are employed, if their coils be switched
against one another or counterbalanced in one armature by a second coil and so
forth In tead of the coils being short circuited on the operating armature,
resistances, condensers, polarisation batteries and other current absorbing apparatus
may be employed for receiving current It must be further mentioned that for
small machines, steel magnets may be employed in place of the electrically excited
magnets
or a
Amatures and magnets may also of course be arranged multiple and be in
other po itions than those herein before described thus instead o the parts which
travel on one another a cylinder or drum shape may be selected in tend of a disc
form, several operating armatures may also act on one magnet wheel
single armature of several arranged one behind another or side by side may act
on several mignot wheel In the latter case the mature travel on the inner
periphery of a multiple magnet wheel Various other modification may be made
in the form of the poles, the ari ingement and insertion of exciters and armature
coil, the regulating devices, contacts and so forth. This new aangement of
tiansmission is thus essentially in a certain sense similar to that of rotary curient
conveyance, with the difference that first, the fiell of rotation is not electrically
but mechanically moved secondly, the armature assumes under certain circum-
stances the position of a diving or operating part, thirdly, the axes of the driving
and diven parts do not coincide fourthly the movement of the one may also
take place alternately running backwards and forwards The arrangement may be
described is the combination of alternating current producer and motors for the
A magnet
dnect immediate conveyance of power without distance conductors
with a constant or alternating field is common to one of the diving or driven parts
through which the other driven or driving part moves in the direction of the
movement of the magnet and consists mainly of an electrical conducting short-
circuited conductor or one traversed by currents from an extraneou
This improved arrangement is everywhere applicable with advantage where the
conversion of high speeds takes place for instance in steam turbines and gas
engines
source
Precisely for these latter machines a most impid extension and highest speed of
piston is required in order to diminish the considerabie loss this was impossible
with crank gening
My improved means now effectively permit of the highest
piston speed for the expansion stroke and a suitably slower one for the other
purpose of the four cycle movement, an unequally large stroke of piston for
Variable loads and so forth
In the latter case I employ a gas engine with a pump cylinder with crank
gearing for a separate diawing in and condensing of gas and air, and a vertically
working cylinder with an inlet valve, outlet valve and piston The operating
armature is connected with the latter by means of a rod copper bars which are
connected at one side by means of a bar run through the sub-1 vided non core of
this armature The circuit closing for the secondary armature coils takes place by
means of a movable contact piece, which is only pressed on the armature during
the period of expansion by means of one of the regulating devices hereinbefore
The circuit closing is interrupted for the return of the armature
described

page_text: The mode of working is as follows
If the piston which freely descends in its cylinder has almost reached the end of
ts stroke, the inlet valve allows a mixture of compressed gas and air to enter from
suitable vessels This mixture is further compressed in the cylinder by the energy
of the mass of the piston which quickly comes to a standstill, ignition then takes
place, the piston flies up and delivers the useful work by means of the new
conveying device to a magnet wheel formed in two parts, which wheel is provided
with sufficient fly or oscillating masses in order to produce the necessary degree of
uniformity in its movement When the expansion is ended, the contact piece is
lifted from the armature, the piston drives fiesh compressed air into the upper half
of the cylinder through a passage beneath it and then falls freely back expelling
the gases of combustion through the outlet valve
A number of other forms may of course be adopted just as there are numerous
types of fluid pressure heat engines
In the arrangement just de cribed as may be seen only a portion of the magnetic
field of the magnet wheel is utilized for the armature, the remaining part may
therefore be utilized for current production by arranging fixed arinature coils in
the interstices of the poles of the wheel In these coils the lines of force of the
revolving fields induce current, which may be utilized as alternating or constant
currents as may be desired In the latter case the atmate coils ie preferably
wound opposed to the poles and suitably connected with a commutator
amature coils may contain on or be wound on \core Any of the various
armatures, arrangements of magnets, switches and the like may be employed,
such as are well I nown in the co istruction of dynamos Currents produced in this
way serve also for exciting the magnets as well as any other source of electricity
Dated this 2nd day of May 1895
The
WM P THOMPSON & Co,
Of 6, Lord Street, Liverpool, Agents for the Applicant
COMPLETE SPECIFICATION
An Improved Method and Means for Transmitting or Converting
Power or Movement between Parts of Machines and the
like
I, ADOI KOLBF of 67 /eil, Frankfort-on-the-Mun in the Empe of
Germany, Merchant, 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 follow ing statement
-
This invention has for its object a kind of electric and magnetic "coupling' to
be employed for tiansmitting energy of movement between two or more parts of a
machine place of the mechanical conveyance by means of gearing, fiction
couplings, intercalary inechanisms, crank gearing and the like hitherto employed
The essence of the invention consists in the working part being "connected'
with one of the operated electic or magnetic parts which produce a magnetic
field by action from distance and not by contact, the latter influencing the
former or vice versa in such a way that a mutual action takes place between the
two parts
Some examples will now be described
a
Take the case shown in Figures 1 and 2 of the accompanying drawings where
the rotation of a shaft W is to be transmitted to another shaft W,
that 1,
rotary movement is to be converted into another rotary movement
In this case a
disc-shaped magnet M is arranged in place of the driving toothed wheel, which
magnet is excited in the ordinary manner by means of a coil E so that at the
circumference N and S poles are produced and a magnetic field therefore results in

page_text: The
the intermediate space
Between the magnetisel edges of the discs in place of the
diven toothed wheel on the shaft W2 there is aanged a copper disc K or an iron
disc with a suitable short circuited coil as in the so called asynchronic alternating
current motor_ It is evident that with a suitable form of construction the lines
of force flowing from the magnetic disc M carry with them the armature disc K
and thus a transmission of movement is obtained The conversion of reciprocating
movement into rotary movement is effected from the first anangement by increasing
the diameter of the armature disc K into an unlimited diameter and utilising only
a ection of said armature with movement in a straight line as shown in
Figures 3, 4, 5 and 10 Thus, for instance, Figure 3 shows the invention applied
to steam engine with cylinder 4 piston K and piston rod G On the latter
an armature A is arranged which corresponds to the part indicated by Kin
Figures 1 and 2 which armature moves between the pole of two magnet
wheels M M²
Two magnet wheels are here provided, because the alteration
in the dnection of movement of the armature A is necessary and work 19
for the same reason in
obtained by the reciprocating or to and fro movement
this second case a reversing device must also be employed The operating armature
consists in this example of two parts a¹ a² of sub-divided iron with coil lying in
grooves or bores like the terminal umatures of alternating current motor
one part of this aimature moves in the magnetic lot of the wheel M and the
other part a' in that of the other wheel 2 The current circuit of the prit a¹ of
the armature is first closed on a movement of the piston to the right and that of
The means for
the other part a² on a movement of the piston to the left
effecting the switching or closing of the cucunts may, as is well nown, be of
various kinds and also they may be operated in vallous ways For instance, by
means of a gas pressure measuring apparatus, a cylinder with piston or diaphragm
mich effects the reversals or changes according to the pressure of the working
fluid, or the closing of the cucuit is produced according as the operating armature
is pulled on pushed Use may also be made of the direction of current in the
armature A the mature will in fact, as is easily seen, alternate as soon as the
operated and operating paits change their rôles on the ces ation of the expansive
force in the cylinder towards the end of the stroke If a suitably constructed
relay be therefore placed in the circuit of the amature A, (or of a part of the
armature coil) this relay may cause the reversal of movement directly or indirectly
in various ways Mechanical regulating gear or the like similar to that of water
column machines 01 pumps and adjustable to suit all cases, are preferably employed
Apparatuses for measuring the speed, resembling pendulum iegulators (in gas
engines) may be employed for connecting or disconnecting the contacts
"
In anothei mode of construction of the circuit clo ing device shown in Figure 3,
the non cores of the armature a¹ a² may have several copper bar. let into them,
which we connected by means of a copper bar on the side turned towards the shafts
of the two magnet wheels M M2 employed in this case, the ends of these bars
which are formed as contact heads project on the inner side and according to the
direction of movement of the piston a central movable contact bar s between the
two parts a¹ a² of the aimature is placed on the bars of one or other of the parts by
It is evident that both
means of one of the above mentioned controlling devices
magnet wheels may be coupled either by crank gearing, as shown in dotted lines
in the drawing, Figure 3, or by means of cogwheels, belts, electrical conveying
devices or the like As in almost all cases the driving speed will alter between
two dead points it is preferable to allow the short cu cuting to take place only when
the circumferential speed of the magnet wheels M M' coincides with the speed of
the armature A, or the period of induction or of the closing of the circuit is made
shorter than the stroke of the piston K, as is easily comprehensible
We come now to the enumeration of at least a portion of the many possible
modifications, all of which cannot be mentioned in view of the limited space of a
Patent Specification First, the maguet wheels and the armature A may be inter-
changed in case it be desired to convert reciprocating into rotary movement (or-

page_text: vice versa), the reciprocating part may as shown in Figures 4 and 5 be a magnet m
with an exciting coil we fed from a source B of electricity The rotating part is
then a copper disc or an iron disc e with short circuit coils, the regulation takes
place in either the exciting coil wo or the disc e in different ways
The excitement of the magnets may also take place by means of alternating
current in tead of con tant current Ihe armature coils may lie in grooves or bores
of the preferably subdivided core in circuits corresponding to any of the field
arrangements of magnets known and employed in electrical michines The
magnets (for instance the magnet wheels) may have projecting poles on the side
facing the armature as in the upper put of Figure 6, or the exciting coils w may
be so airanged that alternate poles result somewhat as shown in the lower put of
Figure 6 In order, in the latter case, that it may not be necessary to excite all
the magnet poles but only those which directly act on the amat me, one end of each
coil to may lead to a friction rings (see Figure 7) the other to the bats of a current
divider or commutator whilst suitably arranged brushes h serve for conveying the
current thereto
If as herembefore mentioned, the magnet M has a encular field, it is necessary to
employ so called "checking coils J, Figure 8, these prevent any shifting of the
lines of force, and cause the magnets to take part in the rotation produced by
means of the rotating or reciprocating matures A, is secondary currents are
induced in these short counted coils by each movement of the lines of force of the
poles, which coils erclose or limit the lines of force The construction of the e
coils is as follows
-
in the
In magnets such as shown in Figures 1 and 2, the lines of force do not rotate
with the rotating pol surfaces but remain stationary when there is opposed to them
a resistance such as a coppui disc, or short cncuit coil K, Figure 1 and 2, and vice
versa, r tating magnetic field cannot carry with it a continuous iron armature
where for instance the short cncuit coil or coppui disc is replaced by a simple
smooth on armature The said chechung coils therefore consist of clectric
conduct is of the smallest possible resistance-copper bars or the like, as in a
closed or short cncuit armature and must be either placed on or embedded in the
pole sui faces, for instance they may be inserted in grooves, slots, or the like in the
magnet poles and be interconnected in any suitable manner, so that the lines of
force should they tend to slip or shift over the continuous pole surfaces must, in
consequence of the reistance to rotation before mentioned intersect the said
conductors or "checking" coils thereby inducing currents in the latter, these
induced currents however act, counteractingly on the lines of foice, and cause a
co-1otation of the lines of force with the pole surfaces exactly as in the well known
arrangement of asynchronic motors In these cases the "slip" loss will be smaller
with diminution of resistance in the short cucuited conductoris, ze
"checking" coils in the one case, or in the short circuit armature of the asynchronic
motor in the other case Assuming that the number of parts of the conductor or
bars of the "checking' coils be increa ed on the continuous pole surfaces in uch a
way that they lie close to one another, and finally merge into one another, there is
produced on the poles a continuous coating of good conducting material-for
instance copper-in which conducting material the eddy currents travel with an
equal effect of rendering stationary the lines of force In other words the pole
surfaces may be entirely covered with a layer of good conducting material
latter arrangement however is less to be recommended than the coils before
described Similar checking devices may also be employed with reciprocating
magnets, such as shown in Figures 4 and 5 These checking coils may be
suitably interrupted or closed for the purpose of regulating or for the removal of
the electric "coupling Thus in the case of a common operating armature for
two magnet wheels, as shown in Figure 3, the checking coils of one magnet wheel M¹
would be closed when the piston moves to the right, and those of the other magnet
wheel M² would be closed when the piston moves to the left instead of regulating
the operating armature
This

page_text: '
The removal or interruption of the electric "coupling may also be effected
by de magnetising the magnets, for instance, by interrupting the excitement by
means of counter current is a secondary coil and so forth For instance in the
example shown in Figure 3 only one magnet wheel M¹ may be excited in order to
cause the piston to go to the right, whilst for the return the other magnet
wheel M² would be excited, thus a single operating armature suffice If the two
magnet wheels be excited in such a way that the currents induced in a common
armature mutually counter ict one another, the action of the magnet wheels upon
the armature A cense Such also will be the case where two operating
armatures a¹ a² are employed, if their coils be switched against one another or
counter balanced in one armature by a second coil, and so forth Instead of the
coils being short circuited on the operating amature, rest-tances condensers,
polarisation, batteries and other curient absorbing apparitus may be employed for
receiving curient It mut be further mentioned that for small michincs, steel
magnets may be employed in place of the electrically excited magnets
Aimates and magnets may also of course be ranged in multiple and be in
other positions th in those herein before de cribed thus for the parts which travel
on one another, a cylinder or drum shape may be selected instead of a disc form,
several operating at matures may also act on one magnet wheel Οι a single
armature, or several aanged one behind another or side by side, may act on
several magnet wheels Figure 9 shows an example of the latter case
amatures a a² ti vel on the inner periphery of a multiple magnet wheel M
Various other modifications may be made in the form of the poles, the arrangement
and insertion of exciters and armature coils, the regulating device, contacts and so
forth This new arrangement of transmission is thus essentially in curtain sense
similar to that of a rotary current conveyance, with the difference Lu first the
field of rotation is not electrically but mechanically moved secondly, the umature
assumes under certain circumstances the position of a driving or operating part,
thirdly, the axes of the driving and driven parts do not coincide fourthly the
movement of the one may also take place alternately running backwards and
forwards The arrangement may be described as the combination of alternating
current producer and motors for the dect immediate conveyance of powei
without distance conductors A magnet with a contant or alternating field is
common to one of the diving or driven parts through which the other driven or
driving puit moves in the direction of the movement of the magnet and consists
mainly of an electrical conducting hort circuited conductor or one traversed by
currents from an extraneous source This improved arrangement is everywhere
applicable with advantage where the conversion of high speeds takes place, for
instance in steam turbines and gas engines
The
Precisely for these latter machines a most rapid expansion and highest speed
of piston is required in order to diminish the considerable loss, this was impossible
with crank gearing
My improved means now effectively permit of the highest
piston speed for the expansion stroke and a suitably slower one for the other
periods of the four cycle movement, an unequally large stroke of piston for
variable loads and so forth Figure 10 shows a gas engine of this kind
This gas engine has a pump cylinder P with crank gearing for a separate
drawing in and condensing of gas and air, and a vertically working cylinder Z,
with an inlet valve v', outlet valve v² and piston K The operating armature
is connected with the latter by means of a rod g, copper bars which are connected
at one side by means of a bai n run through the subdivided iron core of this
armature The circuit closing for the secondary armature coils takes place by
means of a movable contact piece s, which is only pressed on the armature
during the period of expansion by means of one of the regulating devices herein-
before described The circuit closing is interrupted for the return of the
armature l
The mode of working is as follows
-
If the miton K which freely descends in its cylinder Z has almost reached the

page_text: end of its stroke, the inlet valve v allows a mixture of compressed gas and air to
enter from the vessels W¹ W This mixture is further compressed in the
cylinder Z by the energy of the mass of the piston, which quickly comes to a
standstill, ignition then tal es place, the piston flies up and delivers the useful work
by means of the new conveying device to a magnet wheel M formed in two parts,
which wheel is provided with sufficient fly or oscillating masses in order to produce
the necessary degree of uniformity in its movement When the expansion is
ended, the contact piece s is lifted from the armature l, the piston K drives fre h
compies ed air into the upper half of the cylinder through a passage r beneath it
and then falls freely back expelling the gases of combustion thicugh the outlet
valve v²
A number of other forms may of coure be adopted just as there are numerous
types of fluid ]ressure heat engines In Figure 10 an arrangement is also shown
for direct current production in the new machine
As may be seen only a portion of the magnetic field of the magnet wheel M is
utilized for the armature 7, the remaining part may therefore be utilized for
current production by arranging fixed amature coils a in the interstices of the
poles of the wheel M In these coils, the lines of force of the revolving fields
induce curtent, which may be utilized as alternating or constant currents is may be
dosned In the latter case, the armature coils are preferably wound opposed to
the poles and suitably connected with a commutator The armature coils may
contain iron or be wound on a cole Any of the various imituies aangements
of magnets, switches and the like may be employed, such as are well 1 nown in the
con truction of dynamos Curients produced in this way serve also for exciting
the magnets as well as any other source of electricity
Having now particularly described and ascertained the nature of my said inven-
tion und in what manner the same is to be performed, I declare that what I
claim is
-
1 The improved method and means for transmitting circular movement between
two (or more) parts of a machine, the axes of rotation of which do not coincide,
characte ized by the application of magnetic attraction, the driving (or driven)
part being formed as a magnet of suitable construction and potential, and the
diven (oi diving) part being formed as a suitable electric conductor similar to
the armatures of induction motors and mounted to travel in the field of foice of
the afores ud magnet whereby the transmision of movement is effected by the
return action on the lines of force of the magnet of the currents induced in the
armature, substantially as herein before described with reference to Figures 1 and 2
of the accompanying diawings
2 The improved method and means for transmitting, by the application of
magnetic attinction, movement between parts of machines of which one part retains
a rotary movement, whilst the other travels thereon with a reciprocating movement,
sub-tantially as herein before described with refcience to Figines 3, 4, 5 and 10 of
the accompanying drawings
3 In an arrangement such as described for the transmission of movement
between parts of machines, magnets having cucular or similar fields in combina-
tion with checking coils on the pole surfaces for the purpose of retaining the lines
of force in the pole iron, substantially as her embefore described with reference to
Figure 8 of the accompanying diawings
4 The combination with means such as described for the transmission of move-
ment between parts of machines, of suitably operated guiding and contact devices
for connecting or disconnecting the armature coils, the checking coils, or the
magnet coils, substantially as described
5 In an arrangement such as described for the transmission of movement
between parts of machines, the construction of the magnet poles and the insertion
of the exciting coils and a commutator in such a way that only such lines of force
are produced as ale precisely necessary to act on the armature substantially

page_text: as hereinbefore described with reference to Figure 7 of the accompanying
drawings
6 In an arrangement such as described for the transmission of movement
between parts of machines, the simultaneous utilization of the lines of force of the
rotating magnetic field by means of armature coils for the production of electric
currents substantially as herein before described with reference to Figure 10 of the
accompanying drawings
7 The application to steam turbines, steam engines, or other fluid pressure heat
engines, pumps or the like or vehicles, of means such as described for the trans-
mission of movement by magnetic attraction in place of the crank gearing and
other purely mechanical means of transmission hitherto employed
Dated this 24th day of January 1896
WM P THOMPSON & Co,
Of 6 Lord Street, Liverpool, Agents for the Applicant