US1734601A

US1734601A - Archibald g

Info

Publication number: US1734601A
Authority: US
Publication date: 1929-11-05
Anticipated expiration: 1946-11-05

Description

Nov. 5, 1929. A. G. SHAVER INDUCTION TYPE TRAIN CONTROL Filed Nov. 8. 1920 I NVEN TOR.

A TTORNE Y.

l atentecl Nov. 5, 1929 AROHIBALD Gr. SHAVER, OF CHICAGD,

i013, ASSIGNOR TO REGAN SAFETY DEVICES GOll-IPAE'IY, INQ, A CUBPORAIIOI-l F NEW YORK INDUCTION-TYPE TRAIN CONTROL Application filed November 8, 1920. Serial No. 422,598

tions to produce corresponding clear, caution and stop etlects on the train.

A principal object of the present invention comprehends the provision of an induction train control system in which train carried mechanism is operated to produce a plurality of effects such as proceed, speed restrictive and stop eii'ect responsive to the coooeration between train and track magnetic cl lflQlltS or inductoriums with the train carried mechanism given a tripping or deenergizing operation in each section or block so as to condition the same for further operation and so as to determine the operability thereof to l cep the same in proper working order at all nies.

A further principal object of the invention 'cs to the provision of an induction train control system of the type referred to in which the train and track magnetic elements or inductoriur s are operated by train carried energy.

Further objects of the invention relate to the provision of an induction train controlr system in which the train carried mechanism ludos a pneumatic valve electrically cond over normally closed vehicle circuit, and employing a combined reservoir and brake valve of the type shown in my copending Patent No. 1,411,526 of April 4, in addition to a speed circuit controller sinnlar to that shown and described in my copending application tiled June 10, 1919, Qerial No 303,191, whereby the pneumatic valve, normally maintained energized when train is moving from one point to another, continues to be energized under clear and caution conditions, but is deenergized under things? conditions, the said pneumatic valve being placed-under the control of the speed circuit controller under caution conditions.

the

To the accomplishment of the foregoing and such other objects as may hereinafter appear, my invention consists in the elements and their relation one to the other, as hereinafter particularly described and sought to be defined in the claims, references being bad to the accompanying drawing which shows a preferred embodiment of my invention, and in which 1 The figure illustrates a diagrammatic View of the complete train control apparatus and the roadside ap iaratus, diagrammatically indicating the latter controlled by the signalling system.

Referring to the drawing, the various train circuits will be described in sequence as follows: for normally energizing the relay 9 there provided the circuit #1 which includes the battery 1, conductors 2, 3 and 4:,

the circuit make and break permanent magnet 5 which under normal conditions 18 arranged as shown in in ines in the drawing with the south pole oi same in contact with contact 7 and against stop 6, the conductor 8, the relay 9, and conductors 10 and 11. This circuit is normally maintained closed as shown, the permanent magnet 5 being held in its circuit closing position by means of he soft iron piece a which functions as a stabilizing means for holding the permanent magnet in such circuit closing position when :he same is actuated to such position by means AGIClZlilflQl to be described. For normally energizing the relay 16 there provided the circuit #2 which includes the battery 1, conductors 2 and 3, the circuit make and break permanent magnet 12 having the south pole held against the stop 13 and contact l l as indicated in full lines in the ii, .ije, conductor 15, relay 16, and conductor 1' The permanent magnet 12 is held in its iicuit clo pos ion for normally mainaing he circuit closed by means of the soft iron piece a which functions as a stablizing means for holding the permanent magnet in its full iine or circuit closing position when the same is actuated to such position by means also hereinafter to be described.

ll hen circuits 1 and 2 are closed, energizing the relays 9 and 16 respectively, (this cor- 5 be inhibited,

with the train trans: ittiug inductorium 60 and the transmitting iuductorium 62 arranged for cooperati 9 inc; inductorium 6.

M nh the train receiv- Jitl this construction,

, it will be seen that in the movement of the ductorium 60, and that such impulse may be transmitted modified or inhibited for in 7 J 1 I J, fiuencing the tracl: induct-orium e2 ror 1n turn influencing LhQ train receiving ductorium 62 to operate the coils 64L and 67 in a predetermined manner.

The interrelation between the track in

ductoriums

60 and 62 for transmitting, modifying or inhibiting the impulse received by the inductorium 60 is controlled by the roadside signalling; apparatus, and in the present arrangement this interrelation is so controlled to be responsive to safe, caution and danger conditions, the construction being preferably such that under safe conditions the impulse will be transmitted to the inductorium 62 in one direction, under caution conditions such impulse Will be transmitted in an opposite direction, and under danger c. nditions such mpulse will For controlling; this interrelation, there is provided circuit chan j and make and break means under he innuence oi the distant control D and the home or stop control reiay H respectively. The circuit changing means under the control of the distant or caution re y D comprises a pole chanp' includingthe contact fingers 66 and 6'? T, ..ch When the relay D is gized connect the inductoriums 60 and by Way of the conductor 70, the contact i, the contact finger o7, contact finger (58, the coil of the inductorium 62, the conductor 72, the contact finger it}, the contact 73, and conductors 7 and 75. i i hen the relay D dcene gized, the circui connections between the

inductoriums

60 and 62 are reversed, the inductoriums being; connected by the circuitincludinp; -e conductor 70, the Contact 76, the contact arm 66, conductor 72, the coil of the inductorium 62, contact fin 'er act finger 6?, contact 7?, and conductor Upon deenergization ot' the home relay the contact in is opened, thus breaking the circuit between the inductoriums 60 1 lVith this construction, it Will re be sees hat inder sate track conditions, with the home and distant relays H and D energized, an impulse received by the inductorium 66 "Jill be itted in a direction to the inductorium 62. it n her be seen that When the relay D is deenergized respci ve to caution ti'acl, conditions, the impulse received by the induct-min Wlll be transmittel in a reverse rection to inductormm '62.

A, the

V i hen, furthermore, the relays D and H are both deenergized responsive to danger track conditions, the circuit Will be broken and no impulse Will be transmitted to the inductorium 62'.

For the purpose of conditioning; he vehicle car ied mechanism for operation by the train and track inductoriums so that the train circuits are made to respond to the incications of the track inductoriums, and for the further purpose oi": automatically giving the train control apparatus a test operation in each block in order to automatically check the operability of the same at all times, there is provided for each block a track magnet- I'i i which preferably comprises a permanent magnet having the poles arranged as indicated in the figure with the south pole uppermost, the construction and arrangement being such that the make and break train magnets 5 and 12 come under the influence of the permanent magnet M in the movement of the train thereover, such that the north poles of the make and break magnets attracted by the south pole of permanent magnet M, and the south pole of the make and break magnets are repelled by the south pole the permanent magnet M, causing the make and break magnets 5 and 12 which are pivoted at their centers to rotate away from the stops 6 and 13 respectively, thus opel ing the circuits #1 and #2 respectively at the contacts 7 and 14: so that the relays 9 and 16 are deencrg'ized, the make and break magnets 5 and 12 being moved by this means to their deflected dotted line positions as shovn in the figure. The magnets 5 and i2 .vhen moved to the defiectee positions are ele in such positions by means of the soft ieces of iron 7) and Z) respectively, the said ;on pieces functioning as stabilizing means tnis end.

The track permanent magnet M is positioned along the roadside relativeiy to the track inductoriun'is and 62 in such a manner immediatel after the maize and break may; nets 5 and 12 have come under the influence of the same the train inductoriums 30 62 will cover the

roadside inductoriums

60 and 62 respectively, the arranger-1 ent be'ng such that the time interval between the openor" the circuits #1 and #2 by the deflection of the magnets 5 and 12 and the con trol of ti ese magnets by the cooperation of the train and track inductoriums will be too short for the train controlling mechanism to apply the brakes.

With this construction, it will be seen that in the movement of the train on the roa f, I the make and break magnets 5 and an d and track inductoriums, operable in responseto track conditions, then determine the further state of operation of such circuits, the inductoriums being operative to translate or transmit such track conditions for producing corresponding train eiiects as follows 1 Under safe track conditions, the impulse transmitted to the train receiving inductoriu-in 62'Will energize the coils 6i and 67 to produce the polarities therein as shown in the drawing, energization of the coil 67 causing the movement of the magnet 5 from the deflected position to the horizontal circuit closing position, the south pole of the coil 67 attracting the north pole: and repelling the south pole of the magnet 5, the movement of the said magnet to its circuit closing position effecting the energization of the relay 9 and the closing of the circuit :t/zl. This impulse transmitted to the inductorium 62 Will energize the coil 64L to produce the polarity as shown in the figure, the magnet 12 not being change-ably influenced by this energization and being therefore maintained in its deflected position. However, the closing of the circuit #1 energizing the relay 9 has the eftect of closing another train circuit Which includes the battery 1, the conductor 2, the conductor 47, contact finger 48, contact 49, conductor 50, contact finger 51, contact 52, conductor 53, a coil 5% arranged adjacent to the magnet 12, conductor 55, and. conductor 11. The coilv 5a is so Wound that When energized the north pole Willi be arranged adjacent to the south pole of the magnet 12, this arrangement being obviously such that upon energization of the coil 5%, the permanent magnet 12 will be rotated from its deflected position to its horizontal circuit closing position. In the movement oi the train, this action takes place at a moment subsequent to the time of cooperation between the train and track inductoriums and the momentary energization of coil 6 L during such cooperation will perunit the operation of the magnet 12 by the energized coil 54- VI hen the magnet 12 is moved to its circuitclosing position in this manner, circuit #2 is closed, energizing the relay 16, the energizing of both relays 9 and 16 effecting the closin of circuits #3 and gtt-i hereinbefore described for producing the proceed effect on the train controlmagnet 241- and for. energizing the clear lamp G. When the relay. 16 is energized by the means described, it Will be seen that the contact finger 51 is raised or opened,.brealring the circuit to the coil 54 so that the magnet 12 is thereafter uninfluenced thereby and is held in its circuit closing position by means of the stabilizing iron piece a only. It Will be seen, moreover, hat under these conditions the magnet 5 is held in its circuit closing position by means ofthe stabilizing iron piece a only, so that. these magnets WlllbGlIl a condition to be deflected in the passage of the train over the magnet M of the succeeding block.

Under caution track conditions, the im pulse transmitted to the train receiving inductorium 62 Will energize the coils 64 and 67 in a reverse manner, with the south pole of coil 64: adjacent the magnet 12 and With the north pole of coil 67 adjacent the magnet 5 Under these conditions, the magnet 5 Will remain deflected and the magnet 12 Will be influenced and moved to its circuit closing position, with the result that circuit #1 remains open and relay 9 is deener'gized and circuit #2 is closed, energizing the relay 16. As hereinbctore referred to, when the train circuits 1 and 2 are operated in this manner, circuits #5 and #6 are closed, placing the electro-magnet 24 in circuit With the speed controller 45 and energizing the caution lamp 40. With the production of this train effect, the train may proceed at limited or re stricted speed and When the train exceeds such speed the magnet 24 is de'en'e'rgized for producing an application of the brakes. The speed controller a5 is so constructed as to accomplish these results, the contact of the speed controllerremaining closed so lon i as the train is proceeding at a rate not eXce'ec ing predetermined restricted speed, and open ing When: this speed is exceeded, thus breakii g the circuit to the magnet 24;. The contact of the can be arranged according to heavy or light tra ic. After the brakes have been applied 1 nor caution conditions, as'vvhen the train exceeds a predetermined speed, the speed circuit controller automatically functions to close the circuit and reenergize the electromagnet' 24L the instant the speed has been reduced to the predetermined point,'the vent valve being closed. and the reservoir valve opened, so that the engineer can take control of the train to proceed under such predetermined speed.

Under danger track conditions, no impulse will be transmitted to the inductorium 62, and the coils64i and 67 Will therefore be unenergized and the magnets 12 and- 5 will remain in deflected: position; Under these conditions the train circuits #1 and #2 Will remainopen With relays 9 and l6'deenergized, this-resulting. in theclosingof the train circuit 211:7 for energizing the danger lamp R. and the opening of the train circuits-#3 and #6, the said circuits being opened at contact 22 and contact 43, resulting in the deenergization of the electromagnet 24 and the production of stop effects on the-train.

From the foregoing it Will be seen that under all track conditions, the train and track speed controller 45 isadjustable, and

inductoriuinsoperate to determine the state a coil conductors and 11. Upon opera-t the switch or push rey 56 to close this cJc the coil 5% is energized and the magnet in is moved to its circuit closing position for energiuin the relay 1%, and heretofore referred to, upon energization of the relay 16, the train circuit is established for energizing the electromagnet 2e and placing the same under the control of the speed controller 45.

The permanent magnet M is preferably arranged in a roadside circuit including the distant control relay D of the next preceding block, this circuit including the conductor 101 which has its origin at the station where the control relay D is located, the coil C wound around the permanent magnet M, the conductor 102 connected to the relay D of the next preceding block, and the conductor 103, the arrangement being such that the current for energizing the distant control relay D will be in a direction to increase or assist the magnetism of the permanent magnet M. Furthermore, the arrangement of coil C on the permanent magnet M is such that should the permanent magnet M become misplaced or moved, the coil C will be broken out of the circuit of which conductors 101 and 102 are a part, so that the relay D will become deen rgized, and thus an approaching train to the next preceding station will receive a caution control indicating a defect in the mechanism of the block ahead.

The operation of my train control system will in the main be fully apparent from the above detailed description thereof. It will be apparent that upon passage of a train over the track controlling mechanism, the train circuits will be periodically conditioned for operation and control by the track circuits, and that the train circuits will be given a test operation in each block to determine the operability tliereoi and to keep the same in good condition. It will be further apparent that periodically and in each block the track inductoriums and 62 will respond to three roar ide conditions, namely sate, caution sinL danger conditions, to produce like indications therein, and that the

train inductoriuins

60 and 62 will cooperate with the roadside inductoriums to transmit or trans late such indications to produce corresponding proceed, speed restrictive and stop effects on the train.

li hile I have shown my device in the preferred form, it will be apparent that many changes and modiiications may be made in the structure disclosed, without departing from the spirit of the invention, defined in the following claims.

l/Vhat I claim as new is:

1. In a train control system, in combination. vehicle carried mechanism including circuit changing means, electrical provisions for controlling the operation of the same, a normally closed circuit for said provisions including a circuit make and break device, means for operating said make and break device at predetermined periods in the movement of the vehicle for operating the said provisions, and independent means operable in response to track conditions at substantially said predetermined periods for determining the further state of operation of said make and break device.

2. In a train control system, in combination, vehicle carried mechanism including circuit changing means, electrical provisions for controlling the operation of the same, a circuit for said provisions including a circuit make and break device, magnetic means tor actuating said make and break device at predetermined periods in the movementof the vehicle for operating the said provisions, and independent magnetic means operable in response to track conditions at substantially said predetermined periods for determining the further state of operation of :aid make and break device.

3. In a train control system, in combination, vehicle carried mechanism including circuit changing means, electrical provisions for controlling the operation of the same, a circuit for said provisions including a circuit make and break device, a plurality of magnetic elements spaced at intervals along the road side for actuating said make and break device at predetermined periods in the movement of the vehicle for operating the said provisions, and independent magnetic means operable in response to track conditions at substantially said predetermined periods for determining the further state of operation of said make and break device.

l. lln a train control system, in combina tion, electrically operated vehicle control mechanism, an operating circuit therefor, electrical provisions operative for changing connections in said circuit, a circuit for said provisions including a make and break device, means for actuating said make and break device at predetermined periods in the movement of the vehicle for operating the provisions, and independent means operable in response to track conditions at substantially said predetermined periods for determining the further state of operation of said make and break device.

5. In a train control mechanism, in combilGO at predetermined periods in the movement of the vehicle for operating said provisions, and independent means operable in response to track conditions at substantially said predetermined periods for determining the further state of operation of said make and break device.

6, In a train control mechanism, in combination, vehicle carried provisions including a normally closed circuit, a circuit make and break device therefor, roadside magnetic means for actuating said make and break device at predetermined periods in the movement of the vehicle for operating said prov sions, and independent magnetic means operable in response to track conditions at substantially said predetermined periods for determining the further state of operation of said make and break device.

7. In an inductive train control system, vehicle carried train control mechanism, means for periodically influencing the same in the movement oi thevehicle on a r adway, means for periodically determining the further state of operation of the same when so influenced comprising vehicle impulse transmitting and receiving inductoriums, a source of energy therefor, and cooperating track impulse receiving and transmitting inducteriums.

8. In an inductive train control system, vehicle carried train control. mechanism, mag netic means for periodically influencing the same in the movement of the vehicle on the roadway, means for periodically determining the further state of operation of the same when so influenced comprising vehicle impulse transmitting and receiving inductoriums, a source of energy therefor, and cooperating track impulse receiving and transmitting inductoriums.

9. In a train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the vehicle over a roadway, and means for detern'iining the operation of the same when so influenced including cooperating vehicle and roadside magnetic elements, and a vehicle source of energy for energizing the vehicle magnetic element by way of the roadside magnetic element.

10. In a train control system, vehicle carried mechanism, means including magnetic roadside mechanism for periodically influencing the same in the movement of the vehicle over a roadway, and means for determining state of the operation of the same when so influenced including cooperating vehicle and roadside magnetic elements, and. a vehicle source of energy for energizing the vehicle magnetic element by way of the roadside magnetic element.

11. In a train control system, vehicle carried mechanism, means comprising roadside mechanism for influencing the same in the movement of the vehicle to produce a tripping eii'ect therein, and means for determin the state of operation thereof substantial- 1y when the same is tripped including cooperative vehicle and roadside magnetic elements and a vehicle source of energy for operating the said magnetic elements.

12. In an inductive train control system, vehicle carried mechanism, means comprising magnetic roadside mechanism for periodically influencing the same in the movement of the vehicle to produce a tripping effect therein, and means for periodically determining the state of operation thereof substantially when the same is tripped including cooperative vehicle and roadside magnetic elements and a vehicle source of energy for operating the said magnetic elements.

13. In an induction train control system, vehicle carried mechanism including a normally closed operating circuit, means comprising roadside mechanism for opening the circuit in the movement of the vehicle, and means for determining the further state of? operation thereof including cooperating vehicle and roadside magnetic elements and a vehicle source oft energy for operating the magnetic elements.

14. In an induction train control system, vehicle carried mechanismincluding a normally closed operating circuit, a vehicle source of energy therefor, means comprising roadside mechanism for opening the circuit in the movement of the vehicle, and means for determining the further state or operation thereof including cooperating vehicle and roadside magnetic elements connected for operation by said source of energy.

15. In an inductive train control system, vehicle carried mechanism including a normally closed operating circuit, a vehicle source of energy therefor, meanscomprising roadside mechanism for opening the circuit in the'movement of the vehicle, means for determining the further state of operation thereof substantially when so influenced including vehicle impulse transmitting and receiving inductoriums and track impulse receiving and transmitting inductoriums cooperating therewith, the inductoriums being connected for operation by said source of energy.

16. In an inductive train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the vehicle to produce a predetermined effect therein, means operable substantially when the same is so influenced for modifying the effect under given track conditions to produce a different effect therein, the latter means comprising cooperative vehicle and roadside magnetic elements, and

kill

' elements for a vehicle source of energy for operating the same.

, 17. In an inductive train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the vehicle to produce a danger effect therein, means operable when the same is so influenced for differently modifying the effect under safe and caution track conditions to produce proceed and speed restrictive etiects therein, the la ter means comprising cooperative vehicle and roadside magnetic elements, and a vehicle source of energy for operating the same.

18. In an inductive train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the vehicle to produce a danger effect therein, means operable when the same is so influenced for modifying the effect under safe track conditions to produce a proceed eiiect therein, the latter means comprising cooperative vehicle and roadside magnetic elements, block signalling controlling the same, and a vehicle of energy for operating the same.

19. In a train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the vehicle over a roadway, and means for determining the operation of the same when so influenced including cooperating vehicle and roadside magnetic elements, block signalling elements for controlling the same, and a vehicle source of energy for energizing the vehicle magnetic element by way of the roadside magnetic element.

20. In an inductive train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the vehicle to produce a danger effect therein, magnetic means cperable substantially when the same is so influenced for modifying the effect under sate track conditions to produce a proceed effect therein, the latter means comprising cooperative vehicle and roadside magnetic elements, and a vehicle source of energy for operating the same.

21. In in induction train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the vehicle to produce a danger eliect therein, means operable substantially when the same is so influenced for modifying the effect under safe and cam tion track conditions to produce safe and caution effects, the latter means comprising vehicle transmitting and receiving inductoriums, track receiving and transmitting inductoriums cooperating therewith, a vehicle source of energy for generating impulses in said traclr receiving inductorium for trans mission to the track transmitting inductoriuin in the movement of the vehicle, and roadside means operable in response to track conditions for governing the characteristic of the impulse transmitted to the track transmitting inductorium.

22. The inductive train control system of claim 21 in. which the roadside means operable in response to track conditions comprises a pole changer for reversing the direction of the transmitted impulse.

The inductive train control sytem of claim 21 in which the roadside means operable in response to track conditions com-i prises a pole changer for reversing the direction oi. the transmitted impulse and a make and break device for inhibiting the transmission of the impulse.

In a train control system, vehicle carried mechanism including a train controlling means and a speed controller, means including roadside mechanism for influencing the train controlling means in the movement of the. vehicle, means for determining the operation of the same when so influenced including 00- operating vehicle and roadside magnetic elements operable in response to track conditions, a vehicle source of energy for operating the magnetic elements, and provisions for placing the train control means under the con trol of the speed controller when the magnetic elements cooperate under cautionary? track conditions.

25. In a train control system, vehicle carried mechanism including a train controlling means and a speed controller, means includ ing roadside mechanism for influencing the train controlling means in the movement of the vehicle, means for determining the operation of the same when so influenced including a vehicle inductorium, a roadside inducto\ rium for transmitting an impulse to said vehicle inductorium, means for governing the characteristic oi the impulse so transmitted, and provisions for placing the train control means under the control of the speed con-- troller, unuer a given characteristic of transmitted impulse.

26. In a train control system, vehicle carried mechanism including a train controlling means and a speed controller, means includ ing roadside mechanism for influencing the train controlling means in the movement of the vehicle, to initiate a danger eii'ect there. in, means operable substantially when the same is so influenced for modifying the eiiect under safe and caution track conditions to produce proceed and speed restrictive ef-. fects therein, the latter means comprising 00-. operative vehicle and roadside magnetic elements, and provisions "for placing the train controlling means under the control of the speed controller when the magnetic elements cooperate in response to caution track conditions.

27. In a train control system, vehicle can ricd mechanism including a train controlling means and a speed controller, means including road ide mechanism for influencing the train controlling means in the movement of the vehicle nitiate dangei e therein, means operable substantial When th' same is so ini'luenced for modifying the oil ect under sale and 'caution track conditions to produce proceed and speed restrictive effects therein, the latter means comprising a vehicle inductoriuin, a roadside inductorium for transmitting impulse thereto, means responsive to-sa'i'e and caution track conditions for governing the characteristic of the impulse so transn'iitted; and provisions for placing the train controlling means under the control of the speed controller when the impulse transmitted corresponds to a caution track condition.

28. In an inductive train control system, vehicle carried mechanism and provisions for controlling the same, said provisions including an impulse transmittinc' 1 torium, an impulse receiving vehicle inductorium, means including a vehicle source of energy for producing an impulse in said roadside inductorium, and roadside means for governing the direction of flow of said impulse to said roadside inductorium.

29. In an inductive train control system, vehicle carried mechanism and provisions for controlling the same, said provisions including an impulse transmitting roadside inductorium, an impulse receiving vehicle inductorium, means including a source of energy for producing an impulse for transmission to said roadside inductorium, and roadside means operative for transmitting, modifying and inhibi ing the transmission of such impulse.

30. In an inductive traincontrol system, vehicle carried mechanism and provisions for controlling the same, said provisions including an impulse transmitting roadside inductorium, an impulse receiving vehicle inductorium, means including a vehicle source of energy for producing an impulse for trans mission to said roadsioe inductoriuin, and roacside means operative for transmitting, modifying and inhibiting the transmission of such impulse.

81. In an inductive train control system, vehicle carried mechanism and provisions for controlling the same, said provisions including an impulse transi'nitting roadside inductorium, an impulse receiving vehicle inductorium, means including vehicle source of energy for producing an impulse for transmission to said roadside inductorium, and roadside means operative for transmitting, modifying and inhibiting the transmission of such impulse, said roadside means including a pole changer and a make and break device.

32. In an inductive train control system, vehicle carried mechanism and provisions for roadside induccontrolling the same, said provisions including an impulse transmitting roadside inductorium, an in noise receiving vehicle inductorium, means including a source of energy for producing an impulse transmission to said roadside inductorium, and roadside means operative for transmitting, modifying and inhibiting the transmission of such impulse, said roadside means including a pole chang r, and a make and break device, and instrumentalities for controlling; same from a rose side signalling system.

33. In an induction train control syste vehicle carried mechanism and provisions f controlling the same, the said provisions 1 eluding roadside receiving and transmitting inductoriums, vehicle transmitting and receiving inductoriums, a vehicle source of energy therefor, and means for connecting toe roadside inductoriums operative to reverse circuit connect-ions therehetween.

In induction train control system,

vehicle carried mechanism and provisions for controlling the same, the said provisions, ineluding roadside receiving and transmitting inductoriums, vehicle transmitting and receiving; inductoriums, a vehicle source 01 energy therefor, and means for connecting the road 'de inductoriums operative to reverse circuit connections and for breaking circuit connections therebetween.

35. In an induction train control system, vehicle carried mechanism and provisions for controlling the same, the said provisions including roadside receiving and transmitting inductoriums, vehicle transmitting and receiving inductoriums, a vehicle source of enenergy therefor, and means for connecting the roadside inductoriums operative to re verse circuit connections therehetween, the said means comprising a pole changer and a make and break device under the control of a roadside signalling system.

36. In an inductivetrain control system,

vehicle carried means and provisions for controlling the same to produce safe, caution and danger effects therein including a roadside inductorium system, a vehicle inductorium system cooperating therewith, a vehicle source of energy for energizing; the inductorium systems, and roadside mechanism for controlling the same to respond to sale, caution and danger track conditions.

37. In an inductive train controlsystem, vehicle carried means and provisions for controlling the same to produce safe, caution and danger effects therein inucluding a roadside inductorium system, a vehicle inductorium system cooperating therewith. a vehicle source of energy it'or energizing the inductorium systems, and roadside mechanism for controlling the same to respond to safe, caution and dangcfi track conditions, said roadside mechanism including acircuit changer and a make and break device.

88. In an inductive train control system, vehicle carried mechanism and provisions for controlling the same including a pair of roadside inductoriums, a pair of vehicle inductoriums arranged to cooperate simultaneously with the roadside inductoriums, a vehicle source of energy for said inductoriums, roadide means operable in response to track conditions for connecting the roadside inductoriums in circuit under a safety track condition and operative to disconnect the same under a warning track condition.

39. In an inductive train control system, vehicle carried mechanism and provisions for controlling the same including a pair of roadside inductoriums, a pair of vehicle inductoriums arranged to cooperate simultaneously with the roadside inductoriums, a vehicle carried source of energy for said inductoriums, roadside means for connecting and disconnecting the roadside inductoriums, and roadside signalling means controlling the same for effecting connection under a safety condition and for effecting disconnection under a warning condition.

40. In a train control system, vehicle carried means operative to produce a predetermined effect, roadside means for produc ing such effect, and means for modifying such effect including a vehicle carried im pulse receiving inductor, a roadside impulse transmitting inductor with which said receiver is cooperable substantially when such effect is produced, and a source of electrical energy on the vehicle for energizing the transmitting inductor.

41. In a train control system, vehicle carried mechanism, means for governing the same including a circuit make and break device, vehicle carried stabilizing means for normally holding the make and break device in circuit making position, and means for moving the same to circuit breaking position comorising roadside controlling means momentarily active in the movement of the vehicle and active in opposition to said stabilizing means; and provisions for restoring the said, device .to circuit making position also active momentarily in the movement of the vehicle.

42. In a train control, system, vehicle carried mechanism, means for governing the same including a circuit make and break device, vehicle carried stabilizing means for normally holding the make and break device in circuit making position, and means for moving the same to circuit breaking position comprising roadside controlling means momentarily active in the movement of the vehicle and active in opposition to said stabilizing means, stabilizing means for holding the said device in circuit breaking position, and provisions for restoring the device to circuit making position operable momentarily in the movement of the vehicle and active in opposition to said second mentioned stabilizing means.

43. In a train control system, vehicle carried mechanism and roadside mechanism contr lling the same, said roadside mechanism including spaced permanent magnets one arranged in each track section or block and block signalling elements having a circuit for each block, said circuit including an onergizing coil for the ma net of said block, the signalling circuit associated with the magnet of one block being arranged to produce signal indications in a preceding block.

44. In an inductive train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the Vehicle to produce a given effect therein under a given track condition, means operable substantially when the same is so influenced for producing either of two other effects therein under either of two other track conditions, the latter means comprising cooperative vehicle and roadside magnetic elements and a vehicle source of energy for operating the same.

45. In an inductive train control system, vehicle carried mechanism, means including magnetic roadside mechanism for influencing the same in the movement of the vehicle to produce a given effect therein under a given track condition, means operable substantially when the same is so influenced for producing either of two other effects therein under either of two other track conditions, the latter means comprising cooperative vehicle and roadside magnetic elements and a vehicle source of energy for operating the same.

d6. In an induction train control system, vehicle carried mechanism, means including roadside mechanism for influencing the same in the movement of the vehicle to produce a given effect therein under a given track condition, and means operable substantially when the same is so influenced for producing either of two other effects therein under either of two other track conditions, the latter means comprising vehicle transmitting and receiving inductoriums, track receiving and transmitting inductoriums cooperating therewith, a vehicle source of energy for generating an impulse in said track receiving inductorium for transmission to the track transmitting inductorium in the movement of the vehicle, and roadside means operable in response to track conditions for governing the characteristic of the impulse transmitted to the track transmitting inductorium.

17. In a train control system, the combination with a roadside magnetic element and a roadside inductorium, means for controlling the flow of induced current through said inductorium, a relay carried by a moving vehicle, a source of electrical energy for controlling the same, train controlling means under the operation of the relay, a magnetic switch normally holding the circuit with the relay closed and adapted to be opened when passing over the roadside magnetic element, and a vehicle carried inductorium disposed to control the said magnetic switch to return the same to closed position when passing in inductive relation to the roadside inductorium.

48. In a train control system, the combination with a roadside magnetic element and a roadside inductorium, means for controlling the fiow of induced current through said inductorium, a relay carried by a moving vehicle, a source of electrical energy for controlling the same, train controlling means under the operation of the relay, a magnetic switch normally holding the circuit with the relay closed and adapted to be opened when passing over the roadside magnetic element, a coil disposed in inductive relation to the magnetic switch, and an inductorium in circuit therewith and disposed to pass in induc tive relation with the roadside inductorium after said switch has been moved by the first inductorium to reset the said switch into closed position.

49. In a train control system, the combination of a permanent magnet disposed along the roadside, two electromagnets also disposed along the roadside and connected in circuit with each other, roadside means for controlling the direction of How of induced current from one of the latter to the other, roadside means for opening the circuit between the two electromagnets, vehicle carried means including train controlling means, a control circuit therefor including a source of electrical energy, a magnetically controlled switch for the control circuit, said switch adapted to be moved to open position when passing the permanent magnet, and two electromagnets, one in circuit with the source of electrical energy and the other in circuit to control the magnetic switch, whereby when the two last mentioned electro-magnets pass in inductive relation to the roadside electromagnets the magnetic switch will be con trolled thereby relative to the direction of flow of the induced current from the source of electrical energy of the vehicle through all of the electromagnets.

50. In a train control system, the combination with a permanent roadside magnet, two electromagnets connected in a partial circuit and disposed along the roadside, pole chang ing means in said circuit controlled from the roar side means for permitting a reversal of How of induced current in said partial circuit, a vehicle carried source or electrical energy, two relays in circuit therewith, train controlling means under the influence of said cab relays, two magnetic switches normally closed for controlling the respective relays,

said switches being adapted to be opened when passing the permanent magnet, two electromagnets, one in circuit with the source of electrical energy and both disposed to pass in inductive relation to the roadside electroinagnets whereby an induced current is transmitted from the electromagnet connected with the source of electrical energy through the roadside electromagnets to the remaining vehicle electromagnet, and two resetting coils, one for each magnetic switch, connected in circuit with the last mentioned vehicle electromagnet.

51. In a train control system, the combi nation with a roadside magnetic element and a roadside inductorium, means for controlling the direction of flow of induced current through one of said inductoriums, a relay carried by a moving vehicle, a source of electrical energy for controlling the same, train controlling means under the operation of the relay, a magnetic switch normally holding the circuit with the relay closed and adapted to he opened when passing over the roadside magnetic element, a vehicle carried inductorium disposed to control the said magnetic switch to return the same to closed position when passing in inductive relation to the roadside inductorium, and a resetting circuit including the source of electrical energy, a hand operated switch and a coil, the said coil being disposed in influencing relation to the magnetic switch to close the same after the train controlling means has been operated to stop the train.

52. In a train control system, the combination with a roadside magnetic element and a roadside inductor-ium, means for controlling the direction of flow of induced current through one of said inductoriums, a relay carried by a moving vehicle, a source of electrical energy for controlling the same, train controlling means under the operation of the relay, a magnetic switch normally holding the circuit with the relay closed and adapted to be opened when passing over the roadside magnetic element, a coil disposed in inductive relation to the magnetic switch,-an inductorium in circuit therewith and disposed to pass in inductive relation with the road side inductorium after saidswitch has been moved by the magnetic element to reset the said switch into closed position, and a resetting circuit including the source of electrical energy, a hand operated switch, and a coil, the said coil being disposed in influencing relation to the magnetic switch to close the same after the train controlling means has been operated to stop the train.

58. In a train control system, the combination of a permanent magnet disposed along the roadside, two electromagnets also disposed along the roadside and connected in circuit to each other, roadside means for controlling the direction of flow of induced ourrent from one of the latter to the other, roadside means for opening the circuit between the two electromagnets, vehicle carriedmeans including train controlling means, a source of electrical energy, a magnetically controlled switch for controlling the train controlling means, said switch being adapted to be moved to open position when passing the permanent magnets, two electromagnets, one in circuit with the source of electrical energy and the other in circuit to control said magnetic switch, whereby when the two last mentioned electro-magnets pass in inductive relation to the roadside electro-magnets the magnetic switch will be controlled thereby relative to the direction of flow of the induced current from the source of electrical energy of the vehicle through all of the electromagnets, and a resetting circuit including the source of electrical energy, a hand operated switch and coil, the said coil being disposed in influencing relation to the magnetic switch to close the same after the train controlling means has been operated to stop the train.

54. In a train control system, the combination with a permanent roadside magnet, two electromagnets connected in a partial circuit and disposed along the roadside, pole changing means in said circuit controlled from the roadside, means for opening said partial circuit controlled from the roadside, a vehicle carried source of electrical energy, two relays in circuit therewith, train controlling means under the influence of said relays, two magnetic switches normally closed for controlling the respective relays, said switches being adapted to be opened when passing the permanent magnet, two electromagnets, one in circuit with the source of electrical energy and both disposed to pass in inductive relation to the roadside electromagnets whereby an induced current is transmitted from the electromagnet connected with the source of electrical energy through the roadside electromagnets to the remaining vehicle electromagnet, two resetting coils, one for each magnetic switch, connected in circuit with the last mentioned vehicle electromagnet, and a resetting circuit including the source of electrical energy, a hand operated switch and a coil, the said coil being disposed in influencing relation to one of the magnetic switches toclose the same after the train controlling means has been operated to stop the train.

55. In a train control system, the combination with a permanent roadside magnet, two electromagnets connected in a partial circuit and disposed along the roadside, pole changing means in said circuit controlled from the roadside, means for opening said partial circuit controlled from the roadside, a vehicle carried source of electrical energy, two relays in circuit therewith, train controlling means under the influence of said relays, two magnetic switches normally closed for controlling the respective relays, said switches being adapted to be opened when passing the permanent magnet, two electromagnets, one in circuit with the source of electrical energy and both disposed to pass in inductive relation to the roadside electromagnets whereby an induced current is transmitted from the electromagnet connected with the source of electrical energy through the roadside electromagnets to the remaining vehicle electromagnet, two re-setting coils, one for each magnetic switch, connected in circuit with the last mentioned vehicle electromagnet, and a speed circuit controller under the influence of one of the relays and disposed to be connected in circuit with the train controlling means when the polarity of the partial circuit has been changed due to a caution conditon and for regulating the speed of the train after such actuation.

56. In a train control system, the combination with a permanent roadside magnet, two electromagnets connected in a partial circuit and disposed along the roadside, pole changing means in said circuit controlled from the roadside, means for opening said partial circuit controlled from the roadside, a vehicle carried source of electrical energy, two relays in circuit therewith, train controlling means under the influence of said relays, two magnetic switches normally closed for controlling the respective relays, said switches being adapted to be opened when passing the permanent magnet, two electromagnets, one in circuit with the source of electrical energy and both disposed to pass in inductive relation to the roadside electromagnets whereby an induced current is trans mitted from the electromagnet connected with the source of electrical energy through the roadside electromagnets to the remaining vehicle electromagnet, two resetting coils one for each magnetic switch, connected in circuit with the last mentioned vehicle electromagnet, and signals indicating clear, caution and danger, under the influence of said relays.

57. In combination, vehicle carried mechanism, means including roadside mechanism for influencing the vehicle carried mechanism in the movement of the vehicle over a roadway for producing a given condition, and means for influencing said vehicle carried mechanism for producing a difierent con dition including a vehicle energy receiving inductor, a roadside energy transmitting inductor, and a vehicle source of energy for said receiving and transmitting inductors.

58. In combination, vehicle carried mechanism, means including roadside mechanism for influencing the vehicle carried mechanism in the movement of the vehicle over a roadway tor producing a given condition, and means for influencing the vehicle carried mechanism for producing a different condition including vehicle energy transmitting and receiving inductors, a source of energy therefor, and track energy receiving and transmitting inductors cooperating therewith.

59. In combination, vehicle carried mechanism, means including roadside mechanism for periodically influencing the vehicle carried mechanism in the movement of'the vehicle over a roadway for producing a given condition, and means for periodically influencing the vehicle carried mechanism for producing a different condition including vehicle energy transmitting and receiving inductors, a source of energy therefor, and track energy receiving and transmitting inductors cooperating therewith.

60. In combination, vehicle carried mech anism including a normally closed operating circuit, means including roadside mechanism for opening the circuit in the movement of the vehicle, and means for determining the operation of said opened circuit including a vehicle energy receiving inductor, a roadside energy transmitting inductor, and a vehicle c'ooperable, and a source of electrical energy on the vehicle for energizing the roadside impulse transmitting inductor.

In testimony whereof I affix my signature.

AROHIBALD Gr. SHAVER source of energy for said energy receiving 9 a source of energy for energizing the said.

transmitting inductor, and roadside means operative for transmitting, modifying and inhibiting the transmission of such energy to said transmitting inductor. I

63 In a train control system, vehicle carried mechanism, means comprising roadside mechanism for influencing the same in the movement of thevehicle to produce a tripping effect therein, and means for determin ing the state of operation thereof when the same is tripped including cooperative vehicle and roadside inductors, and a vehicle source of energy for operating the said inductors.

64-. In a train control system, vehicle carried means operative to produce a predetermined effect, roadside means for producing such effect, and means for modifying such effect including a vehicle carried impulse re ceiving inductor, a roadside impulse transmitting inductor with which said receiver is