US1126620A

US1126620A - Electric regulation.

Info

Publication number: US1126620A
Application number: US60543611A
Authority: US
Inventors: John L Creveling
Original assignee: Safety Car Heating and Lighting Co
Current assignee: Safety Car Heating and Lighting Co
Priority date: 1911-01-30
Filing date: 1911-01-30
Publication date: 1915-01-26
Anticipated expiration: 1932-01-26

Description

J. L. OREVELING. ELECTRIC REGULATION.

APPLICATION FILED 1,111.30,1911.

1,126,620, Patented Jan. 26, 1915.

l ml l l AS 17177416 A D OPPOJ'IA/G (0/ WITNESSES INVENTOR rounded by; .the solenoid coil 16-: in such- UNITED STATES PATENT OFF-ICE.

JOHNL. C BEVELING, OF NEW YORK, N. Y., ASSIGNOR T0 SAFETY CAR HEATING AND LIGHTING COMPANY, A. CORPOBATION OF NEW: JERSEY.

ELECTRIC REGULATION.

To aZZ whom it may concern Be it known that 1, JOHN L. Cnnvnnmc, a resident of the city, county, and State of New York, have inventedcertain new and I useful Improvements in Electric Regulation, as set forth in the annexed specification and drawing, forming a part thereof.

My invention pertains to that class of electric regulation wherein it is desired to automatically regulate or govern an electric circuit and has for its particular object to provide means whereby an electric circuit may be automatically governed ina predetermined manner.

As my invention is particularly applicable to that class of. systems wherein a generator driven at variable speeds is used to automatically charge storage batteries and operate lamps for other translating devices, it will be described with reference to such a system.

In the drawing, Figure 1 represents such a system wherein the essentials of my invention are embodied. Fig. 2 is a modified formof a portion of the system shown in Fig.1.

In the drawing, 1 represents a dynamo or generator provided with a field winding 2, having inseries'therewith a variable resist ance 3, indicated as of the carbon pile variety.

#1 represents a bell-crank lever normally drawn in an upward direction as by the adjustable spring 5 in such manner as to tend to compress the carbon pile, 3 and reduce the resistance thereof:

6 is an adjustable screw for limiting the across the generator circuitas bywires 10 and 11 in such manner thatexcitation of said coil 8 tends to. depress the lever 4 and increase resistance 3.

9 is adash pot resistingtoo sudden movement .of the core 7;

12 represents a bell-crank lever normally drawn in .an upward direction limited by the adjustable stop 14, asby spring'13, in such manner as to tend to reducethe resistance of the pile 3. The level- 12 isprovided; at one end. withthe 'core- 15 sur= Patented (1311.26, 1915.

Application filed January 30, 1911. Serial N 9. 605,436.

manner that energization of the said solenoid coil tends to depress said lever, and in crease the resistance 3.

17 is a dash pot resisting too sudd'en movement of the core 15.

From the generator 1 the lead 18 is carried t0 one side of automatic switch 19, which. may be of any of the well known types for completing the circuit when the generator voltage. is substantially equal to that of-the battery. A suitable switch for this purpose is shown in Patent No. 7 07,7 63 granted to me August 26th. 1902. On the opposite side of said switch the wire 20 is carried to the solenoid coil 21 from which the main 22 is carried to one side of the lamps or translating devices 23, having their opposite terminals connected with the main 24,- carried to one side of the variable resistance 25, in this instance shown as a carbon pile, the resistance of which is controlled by the lever 26 normally drawn in a downward direction as by adjustable spring 27 in such manner as to tend to reduce the resistance thereof. The lever 26 is provided at one endwith the core 28 surrounded by the solenoid coil 29in shunt with the translating devices 23 in such manner that en citat on o-f-the coil 29 tends to raise the lever 26 and increase the resistance 25.

30-is a dash pot resisting too sudden movement of the lever 26. From the opposite side of the variable resistance 25 the lead 3]. is carried through the solenoid 16 to the generator 1. The wire 32 is carried from the main 2 1 130 the variable resistance device 33, the resistance of which depends upon the position of the pivoted lever 3i, normally drawn downwardly as by the ad-- justable spring. 35, and provided with a core 36 surrounded by the solenoid coil 21 insuch manner that pull upon the core 36 'by said 'solenoid coil tends to increase the resistance 33. The lever 34 is connected witlr the lead 31, as by wire 14. Thus it will be obvious that the resistance 33 is in shunt tothe carbon pile resistance 25, and that the valuethereof' will depend upon the position of the lever 34. 37 is a dash pot resist 1 ing too sudden movement of the core 36.

In Fig 1, the core 36 is shown as having wound thereupon a coarse polarizing winding-38'flexibly connected withthe main 22 asbythe wire 39 and-flexibly "connected with one side of the battery 41 as by the wire 40. The opposite side of the battery is connected as by wire- 42 with the lead 31.

In Fig. 2 like numerals are used to indicate like parts and the said figure represents a slight modification of the system shown in Fig. 1 difi'ering only in that the polarizing winding 38, wound upon the core 36, n1 Fig. 1, so as to act as a polariz ng coil is replaced by the coil 43 in Fig. 2 1n such relation to the coil 21 as to be an addit ve or subtractive winding when considered in relation thereto.

The operation of my invention is substantially as= followsz-1f the generator be running at such voltage that switch 19 shall be closed, and the generator shall be supplying part of the current used by the translating devices,,current will flow through the coil 2 and resistance 3 to the generator 1 and the generator may be governed by regulation of the resistance 3 in an obvious manner. Current will also flow through the wire 10, solenoid coil 8, the wire 11, tothe generator and I so adjust the spring 5 that when a certain desired voltage is reached across the generator, the same will be held constant throughout further increases in speed of the generator, by the action of the solenoid coil 8 increasing the resistance 3 against the action of the spring 5 in a well lmown manner. I also adjust the spring 13 in such manner that when a desired maximum current output of the generator is flowing in solenoid coil 16 any increase over this amount will.

depress the lever 12 and increase the resistance 3 in such manner as to hold the generator current from exceeding this amount. The current flowing from the generator to the translating devices as above mentioned will flow through the lead 18,

- switch 19, wire 20, solenoid coil 21, main 22,

translating devices 23, main 24, resistance 25, to lead 31, and also from main 24 through wire 32, resistance device 33, lever 34, and wire 44 to the lead 31, and thence to the genorator through the solenoid coil 16. As the generator has been taken as running at such speed as to supply part of the current to the translating devices, the remaining portion supplied thereto will flow from the battery 41 through wire 40, polarizing winding 38 and wire 39 to the main 22, through translating devices 23, main 24, carbon pile 25, lead 31 and wire 42 to the battery and also from main 24 through wire 32, resistance device 33, lever 34, wire 44, lead 31 and wire 42 to the battery. The winding 38 upon the core 36 is in such direction that current flowing from the battery through the said winding as above mentioned sets up a mangetomotive-force in a direction the reverse of that set up by the current flowing from the generator through the solenoid coil 21, and

thus tends to reduce the value of theresist- I battery 41 and wire 42 to the lead 31 and ance 33 in an obvious manner, which tends to reduce the resistance in shunt to the resistance 25'and thus to reduce the total resistance in the lamp or translation circuit. If now the generator voltage be increased until it be supplying the entire current used in the translating devices and supplying some current to the storage battery, that portion supplied to the storage battery will flow through the wire 39, winding 38, wire 40,

energize the winding 38 in such direction that its magnetization of the core 36 will tend to assist the coil 21 in raising the said core, and increasing the value of the resistance 33, the value of which by proper adjustment of the spring 35 can be made to depend both upon whether the current be flowing into or out of the battery 41 and the dimen sions of said current. I now so adjust the spring 35 that, if the battery be charged at substantially its maximum rate, a considerable resistance, as may be desired, is inserted in shunt to the resistance 25 at 33. I now so adjust the spring 27, that when the normal voltage is reached across the trans latingcircuit and thus across the solenoid coil 29 any increase in voltage above this point will increase the resistance 25 in such manner as to hold the voltage upon the translation circuit substantially constant. It will thus be obvious that the voltage operated carbon rheostat 25 tending to hold the voltage upon the translating circuit constant has in shunt thereto a variable resistance 10o taking a considerable of the load away from the carbon resistance and relieving the same at times when it would otherwise be required to do the most work and dissipate the most heat and that the value of the resistance 33 thus placed in shunt with the resistance 25 depends upon current supplied by the generator to the battery and to the translating devices, and also upon current supplied by the battery to the translation circuit.

The foregoing description with reference to Fig. 1, can readily be followed with reference to Fig. 2, it only being necessary to note that current flowing to and from the battery only acts to assist or weaken the effect of the solenoid coil 21, whereas in Fig. 1 the winding 38 by acting as a polari7 ing coil may serve to cause the current flowing to and from the battery to create the attraction or repulsion respectively between the core 36 and the coil 21.

In the foregoing description I have described a construction wherein there is a resistance medium whose resistance varies with variations in pressure thereon, together with a lever operating upon one end of said medium to vary the resistance thereof, and a lever independently operating upon the other end of said medium, and an electromagnet for controlling the operation of each lever;'but, I do not herein as the same a part of this application, inasmuch as the drawing is a mere diagrammatic representation of one type of system embodying my invention and the description is merely one use of the same, and it will be obvious that wide departure may be made in the details of construction and operation, without departing from the spirit and scope of my invention which is set forth in the following laims:

1. The combination with a generator, a translation circuit, and means for varying the voltage upon the translation circuit affected by the output of the generator, of means whereby said variation due to the output of the generator is dependent upon the voltage of the translation circuit.

2. lhe combination with a translation circuit, of means whereby changes in output of the generator cause changes in the resistance -of the translation circuit, and means whereby the extent of such changes in the translation circuit resistance depends upon the voltage across the translation circuit.

3. The combination with a generator, a storage battery and atranslation circuit, of means whereby variation in the output of the generator causes a compensating variation in the resistance in the translation circuit and means whereby the degrees of said compensation efi'ected by the output of the generator vary in accordance with the storage battery current. I

i. The combination with a dynamo or generator, and a translation circuit, of means for inserting resistance in the translation circuit depending upon the output of the generator and means for determining the effective amount of resistance inserted depending upon the voltage across the translation circuit.

5. The combination with a generator, translating devices, a magnet in series with the generator voltage regulating means in series with the translating devices and means whereby said magnet operates said voltage regulating means, of independent voltage regulating means whereby the voltage across the translation circuit determines the effective amount of variation caused by the action of said magnet.

6. The combination with a dynamo, and a translation circuit, of means for regulating the voltage upon the translation circuit dependent for its action upon the output of the generator and means for governing the eta generator, and

feet of such action dependent upon the voltage of the translation circuit.

7. The combination with a dynamo, a storage battery and a translation circuit, of means for varying the voltage upon the translation circuit dependent for its action upon the output of the'generator, means for governing the effect of such action depend ent upon the voltage of the translation circuit and means for adjusting'the amount of effect produced by said output actuated means dependent upon the battery current.

8. The combination with a generator, a main circuit containing a magnet, a translation circuit, and means whereby said magnet inserts resistance in the translation circuit, of means for varying the effect produced by said resistance thus inserted comprehending a magnet in shunt to the translation circuit.

9. The combination with a generator, a main circuit containing a magnet, a work circuit, and means whereby said magnet inserts resistance in the work circuit, of a shunt for varying the effect of said resistance thus inserted, and a magnet for operating said shunt affected by. the translation circuit voltage.

-10. The combination with a generator, a translation circuit and means for regulating the voltage upon the translation circuit dependent upon the output of the generator, of means for altering the effect of such voltage varying means, depending for its action upon the voltage across the translation cir cuit.

11. The combination with a generator and its main circuit, a magnet in said circuit, a storage battery and translating devices, a variable resistance between the storage battery and the translating devices operated by said magnet, of a variable re sistance in shunt to said resistance between the battery and translating devices, dependent in amount upon the voltage across the translation circuit.

12. In a system of electrical distribution, translating devices and a voltage regulator for the translating devices comprehending a rheostat governed by the voltage at the translating devices, having always an appreciable resistance and voltage varying means in shunt relation thereto having during its operation a point of negligible resistance.

13. Means for governing the voltage upon an electric circuit having a battery in operative relation thereto comprehending a voltage operated carbon rheostat in said circuit a rheostat adapted to short circuit said carbon rheostat and means for operating the same afi'ected by the direction of battery current.

14-. A system of electrical distribution comprehending a generator, a storage bat- 'tery, translating devices, a voltage operated rheostat for governing the voltage upon the translating devices and means in shunt to said voltage operated rheostat adapted to short circuit the same and means for operating the same ati'ected by current in the battery circuit.

15. Means for regulating an electric circuit comprehending a carbon pile resistance in said circuit, voltage operated means operatively connected to said circuit for controlling said carbon pile, means for reducing the resistance in said circuit below the minimum resistance of said carbon pile and means for operating the same affected by current in the battery circuit.

16. The combination with a supply circuit a storage battery and a translation circuit, of means for regulating the voltage upon the translation circuit comprehending voltage operated means affecting said circuit, voltage afi'ecting means cooperating with said last named meansand means for operating the same afi'ectedbybattery current.

17. The combination with a supply circuit, a storage battery and a translation cir-- ,cuit, of means for regulating the voltage upon the translation circuit comprehending voltage operated means afi'ectmg said 011'- cuit, voltage afiecting means cooperating with said last named means and means for operating the same affected by variations in direction of battery current.

18. The combination with a supply circuit, a storage battery and a translation circuit, of means for regulating the voltage upon the translation circuit comprehending voltage operated means afi'ecting said circuit, voltage affecting means cooperating with said last named means and means for operating the same affected by variations in direction and magnitude of battery current.

19. The combination with a supply ,circuit, a storage battery and a translation circuit, of means for regulating the voltage upon the translation circuit comprehending J OHN L. CREVELING.

Witnesses H. P. HALL,

CHAS. McC. CHAPMAN.