US839713A - Electric regulator. - Google Patents

Electric regulator. Download PDF

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US839713A
US839713A US1904342704A US839713A US 839713 A US839713 A US 839713A US 1904342704 A US1904342704 A US 1904342704A US 839713 A US839713 A US 839713A
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force
coil
conductor
movement
regulator
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Joseph Bijur
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GENERAL STORAGE BATTERY Co
GEN STORAGE BATTERY Co
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GEN STORAGE BATTERY Co
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K33/00Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets

Description

J. BIJUR. ELECTRIC REGULATOR.
APPLICATION FILED SEPT.24, 1904. RENEWED NOV.9,1906.
PATENTED DEC. 25, 1906.
3 SHEETS-SHEET 1.
ATTORNEYS" PATBNTED 131510. 25, 1906.
J. BIJUR. ELECTRIC REGULATOR.
APPLICATION FILED SEPT. 24, 1904. RENEWED NOVzQ. 1906.
3 SHEETS-SHEET 2.
PATENTED DEC. 25, 1906.
UNITED STATES PATENT OFFICE.
JOSEPH BIJUR, OF NEW YORK, N. Y., ASSIGNOR TO THE GENERAL STORAGE BATTERY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.
ELECTRIC REGULATOR.
Patented Dec. 25, 1906.
Applicationfiled September 24, 1904. Renewed November 9, 1906. Serial No. 342,704.
To all whom it may concern:
Be it known that I, JosEPH BIJUR, a citizen of the United States, and a resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Electric Regulators, of which the following is a specification, accompanied by drawings.
This invention relates to electric regulators particularly adapted for systems of electric distribution in which storage batteries are used in addition to the generatingdynamo, and an auxiliary dynamo is provided to cause the battery to charge or discharge as the external load decreases or increases, the voltage of the auxiliary dynamo being made to vary in direction and amount, or both, as-the voltage requirements of the system may necessitate; but the improved regulator may be used in any connection in which it may be foundapplicable.
The objects of the invention are to enable a substantially constant load to be maintained on the generating-dynamo with a findtuating external load and to improve upon regulators for varyin the voltage of the auxiliary dynamo with the external load.
To these ends the invention consists of a regulator for carrying out the above objects consisting of the combinations of elements, features of construction, and arrangement of parts having the general mode of operation substantially as hereinafter fully described and claimed in this specification and shown in the accompanying drawings, in which Figure 1 is a diagrammatic view, partly in section, of a regulator embodying the invention and circuits and connections therefor. Fig. 2 is a vertical sectional side view of the regulator or controller, a portion of the lower part having been broken away. Fig. 3 is a transverse sectional view of the regulator or controller, taken on the line a b of Fig. 2. Fig. 4 is a detail vertical end view of the lower portion'of the regulator or controller,
which portion carries the resistances. Fig. 5 is a detail vertical side view, partly in section, of the lower portion of the regulator or controller corresponding to Fig. 4. Fig. .6 is a detail face view of the contacts or segments for one of the resistances to which the sections of said resistance are connected. Fig. 7 is an enlarged detail view of the adjusting device for adjusting the tension of the regulator or controller spring.
One system to which the regulator may be applied will first be described to illustrate the operation of the device, and, referring to the drawings, and at first more particularly to Fig. 1, A represents a suitable dynamo or source of supply connected to the mains b and 0, while the work portion of the system carrying the external load is represented by the conductors d and e. In this instance the load is represented by the lamps f by way of illustration. Connected across the mains is shown a storage battery B, in series with which is arranged the armature of the auxiliary dynamo O, the field D of which is connected to be varied both in direction and amount by the electromagnetic controller, (represented by E,) which controls the resistances R R, connected in circuit with the field-winding D of dynamo C. The regulator or controller E is so connected as to be indirectly responsive to changes in the external load of lamps f or other electroreceptive devices. The resistances R may be connected to any suitable source of exciting-current; but in this instance they are shown connected across the mains b c of the generator A. They are, however, connected reversely, the upper and lower terminals 1 and 2 of resistance R in Fig. 1 being connected, respectively, to the positive and negative sides of the generator A by Wires 3 and 4, while the upper and lower terminals 1 and 2 of resistance R are reversely connected by wires 5 and 6 to the negative and positive sides of the generator A. The terminals of the field-Winding D of dynamo C are connected by wires 7 and 8 to the brushes 9 and 10, which are insulated from each other and from the common support 11 and are adapted to be moved along the insulated contacts or segments 12 and 13, to which the sections of resistances R and R are suitably connected. Any suitable and convenient arrangement of resistances, contacts, and brushes may be provided for attaining the ends in view.
When the brushes are in the lower position, as shown, the brush 10 will be at the same potential as the positive side of the source of supply A, while brush 9 will have the potential of the negative side, and there will be between these two brushes the full voltage of the source of exciting-current for the field D, the current passing from the positive brush ofdynamo A through the main b by wire 6, through terminal 2 of resistance R to brush 10, from thence by wire 8 to and through the field D, returning by wire 7 to brush 9 to terminal 2 of resistance R, and by wire lback to the negative main 0 and the negative brush of dynamo A. When.
the brushes ,are in the uppermost position, brush 9 will be of positive polarity and brush 10 negative, in which case the full voltage [0 will be impressed upon the brushes 9 and 10, but in a reverse'direction, the current then passing from the positive brush of the dyname by wire 3 to brush 9, thence by wire 7 through field D, and back by wire 8 to brush I 5 10, and from thence by wire 5 tothe negative side of dynamo A. When the brushes 9 and brushes in one direction or the other, by
means of which. construction and opera- 0 tion the excitation of the field D,.and consequently the voltageof the armature of the auxiliary dynamo C, will vary in direction and amount with the position of the brushes 9-and 10. I
3 5 The controller E is constructed to provide a substantially-uniform working field of force in which an electrical conductor is mounted having a substantially large range of movement in said field. Means are provided for 0 opposing a substantiallyuniform mechanical pull to the movement of the conductor in the working field of force, whereby when the balance between the electrical and mechanical forces isdisturbed the conductor moves until the balance is restored. The moving conductor referred to is connected to control the movement of the brushes 9 and 10 to vary the :field D of the auxiliary dynamo or booster-crusher C.
5o The controller E may be constructed in a variety of ways, and one suitable construction which has been found to operate efficiently and well is illustrated in the drawings, although equivalent constructions may be found to operate upon the same principle as the controller herein disclosed. In the construction shown in this instance the hollow frame F is preferably of caststeel, while the field-core G, preferably of east-steel or wrought-iron, is adapted to be suitably secured within the frame F and for this purpose is provided with the cap H, which may be secured to the frame F by means .of the bolts I. As will be seen in the cross-sectional 6; view in Fig. 3, the frame'F and core G are substantially cylindrical and the core G is hollow to allow the operating-shaft J to have movement therein. The upper end of the hollow core G may be closed by a suitable plug K.
Around the core G is arranged the fieldwinding L, adapted to be energized, and thereby produce a magnetic circuit through the core G and across the air-gap 0 between said core and the surrounding frame F. .In 7 the air-gap O is a substantially uniform use-- ful or working field of force roduced by the excitation of the coil L. urrounding the core G is a movable coil P, adapted to move along the axis of the core, the movement of which is opposed in one direction by the spring Q. Whenthe electrical force tending to move the coil Pand the pull of the spring are in equilibrium, said coil P remains stationary. 8
In the construction of the apparatus the coil P is preferably wound upon a brassspool S, in turn carried bythe brackets orarms T, preferably of aluminium, which are adapted to move in thegrooves .U in the outer face of the core G, whereby the air-gap is reduced, the movement is guided, and the coil P ,is prevented from twisting, although any other suitable means may be provided for accomplishing these objects. Suitably secured to 5 the arms or brackets T by means of .the screws V is provided-the spider W, preferably of aluminium, which is in turn connected to the operating-rod J, as by means of the pin X, so that the movement of the coil P is imparted .to the operating-rod The brushes 9 .and 10 are suitably connected to the ,rod J and movable therewith. The hollow portion of the core G forms a dash-pot in connection with the. piston Y, connected to the upper end of the rod J. The brushes 9 are suitably secured to the supporting-piece 11, carried by the rod J and fixedly secured thereto. While different constructions may be provided for the brushes, asuitable construction is shown in the drawings, from which it will be seen that the brushesare fastened to metallic springs g, suitably secured to the supporting-piece 11, but insulated therefrom by means of the insulating-sleeves and washers h. Means are provided for regu lating the force with which the brushes are pressed against the series of contacts or segments 12 and 13, as shown in this instance, brackets i being secured to the support 11, but insulated therefrom, while bearingblocks are pivoted to said brackets and pro vided with adjusting-screws is, adapted to bear upon the under portions of the brackets i, whereby adjustment of the screws it causes the bearing-blocks j to push the springs g more or less strongly against the segments 12 and 13.
Supported from the frame F by means of rods Z, which may be of brass, are the seg- .1 0
v ratus.
an eccentrically-shaped rim portion 0), and.
ments comprising the contacts 12 and 13. The resistances 1t and R, which may be of any suitable character, are suitably connected in sections to the insulated segments 12 and 13 and are placed in any convenient location where suitable connections may be made.
In order to connect the field-coil L in circuit, the leads 0 are provided, as shown, passing through several apertures in-the cap H, but insulated from said cap. The movable coil P is connected in circuit by means ofthe flexible leads 1), which, as shown, lead from said coil to binding-posts gon the bracket 1", secured to the rods Z. .To oppose the action of the magnetic force tending to move the coil P in one direction, a suitable spring Q is provided with devices so arranged that there is a substantially ,uniform mechanical pull exerted by the spring opposing the movement of the conductor. Difierent arrangements may be provided for this purpose; but, as shown in the drawings, a rocker sis pivotally supported by a bracket 15, secured to the lower portion of the framework of the appa- The shorter arm'u of the rocker has the lower portion of said arm a is secured by a cord to to the spring a The longer arm a; of the rocker s is secured, by means of a cord y, to the lower end of the operating shaft or rod J. As the movable coil P is moved upward under the influence of the magnetic field the spring Q exerts a pull tending to oppose the movement of the coil, and by reason of the eccentric form of the rocker s the moment of the force about the axis of the rocker tending to oppose the spring is substantially constant.
The eccentricity of the portion 1) of the rocker may be varied, because, as shown, in this instance the portion 12 is adjustable by means of the slot 15 and pin 16, which permits the portion v to be moved in and out on the pivot 17 and secured in any desired position. The cord w, as shown, is attached to a block 18, carried by the-screw 19, secured in the bracket 20, which projects from the portion a of the rocker, whereby the tension of the spring may be slightly varied. At the other side of the rocker the cord 3 is secured -to a block 21,. carried by the screw 22, se-
cured in the bracket 23, whereby the cord y ma be tightened and loosened.
1 1 1 order that a greater number of segments or contacts 12 and- 13 may be arranged in a small space, these contacts are arranged in parallel staggered rows, as shown in Fig. 6, over which the brushes 9 or 10 are adapted to pass. The sections of the resistances and B may be suitably connected to the segments, as arranged in Fi 6.
In connecting t e electroma ler E in etic controlcircuit in the system s own in Fig. 1
with each other, and the combination of the two coils is connected in series with the generator A. As shown in Fig. 1,'the leads 0 of the coil L are connected in circuit with the main 1), while the leads p of the coil P are connected to points'25 and 26 on the main 1), so that coil P is in parallel to coil L. By the arrangement described any increase of load on the generatorAwill result in an increase of current through both coils L and P. The pull on the coil P is of course proportional to the strength of the current flowing through it and the density of the magnetic field through which it travels. It is therefore obvious that any change in the current through the coil L or through coil P, or through both, will cause a corresponding change in the electromagnetic force acting on coil P, resulting in movement of said coil until the force of the spring and the force acting on the coil P to move it are in equilibrium. Any change, therefore,in the load on the generator Awill result in a change in the magnetic conditions in the regulator E, which will give a corresponding change in the voltage of the auxiliary dynamo C.
The operation of the regulator is as follows: The regulator is set for a given normal load, and the external load being equal thereto the magnetic force due to the current flowing through the regulator E is just suflicient to make the coil P take a position half-way down the length of the air-gap 0, so that said coil is in its middle position. The brushes 9 and 10 will also be in their middle position relatively to the segments 12 and 13, so that the excitation of the field D of the auxiliary dynamo C is zero and its voltage is also zero. There is therefore no tendency on the part of the dynamo C to assist the storage battery B either to charge or discharge. When the load on the external circuit exceeds the normal, the pull on the coil P will increase, due to a slight increase in the current from the generator A. This increase in the pull upon the coil P will cause it to move upward, and the brushes 9 and 10 will bear upon one of the upper pairs of contacts 12 and 13,'thereby giving an excitation to the field D of dynamo C and causin the dynamo to generate an electromotive orce, which adds itself to that of the battery, causing the battery to discharge and assist the which assists the generatorevoltage to send' ,current into the battery. The instant the the coils, L and P 'are' arrangedv in parallel i external load begins to change the coil mal.
begin its movement in the proper direction and continue moving until the generatorcurrent is restored to its normal value. In other words, the brushes 9 and 10 will be caused to move to such a point on the contacts 12 and 13 that the excitation of field D of auxiliary dynamo produces a voltage in said dynamo just sufiiclent to cause the battery to charge or discharge an amount equal to the difference between the external load and the normal generator-load. By correctly proportioning the parts of the regulator it is possible to keep the generator-load constant within a few per cent. of the nor- The changes which have been mentionedas taking place in the generator-cur rent are more strictly tendencies to change,
which are checked in their inception: This regulator responds ra idly and exactly to the fluctuations in the oad demand, because the moving coil P, and with it the brushes 9 and 10, begin to travel the instant there is any change in the external load. In accordance with this invention the greater the unbalancing of the system the more rapidly will the regulator respond, and'since there is no relay used the time constant is avoided.
In my improved regulator the balance between the mechanical pull exerted by the spring and the electrical force in the regulator is independent of the position of the moving art. The inertia may be made very sma l, and the motion of the coil P tends to damp it. The instrument is direct-acting, and the inertia of the moving arts is inde- 1plendent of the strength of t e magnetic eld, which is not the case in an ordinary solenoid. The force that tends to make the change in the instrument is in a certain proproduced. On the contrary, in accordance vwith my invention the field is not changed or distorted, and I obtain a substantially constant pull at all times.
It is obvious that instead of constructing the regulator to 1 provide a substantially constant magnetic eld of force a variable field may be provided, and the movement of the coil P may be opposed by a spring, the tension of which increases as the coil P is drawn into the field. In apparatus so constructed the strengthof the field increases with thetension of the spring, so that for a given change in electrical conditions the moving coil P will travel until the current conditions are restored to .normal. The pull of the magnetic field is equalto the tension of the spring in all positions of the moving coil throughout the whole range of travel, and the tendency to move with a given electrical condition is the same at all parts of the magnetic field.
In my regulator there is a useful field of force and an electric conductor mounted for a substantially large range of movement in said field, with a mechanical force opposing the movement of said conductor, the pull of the field of force being equal to the opposing mechanical force in all positions of the moving conductor throughout the whole range of travel, whereby with a given electrical condi- .tion in the instrument the tendency of the conductor to move is the same in alllparts of the magnetic field.
Obviously some features of my invention may be used without others, and the inven' tion may be embodied in widely-varying forms.
Therefore, without limiting the invention ful field of force, an electric conductor carry ing a current and mountedfor a substantially large range of movement in said field, and a substantially uniform mechanical pull opposing the movement of said conductor,
whereby when the balance between the electrical and mechanical forces is disturbed, the conductor moves until the balance is restored and means controlled by the instrument for effecting regulation of a circuit.
2. An electrodynamic device for regulating and other uses, comprising a magnet with poles disposed to produce a field of force substantially uniform throughout its working range, a conductor carrying a current and mounted for movement in and by the said field of force, and a mounting therefor, opposing a substantially uniform force to resist said movement, whereby a substantial variation in the electromagnetic energization of the magnet or conductor from a fixed amount will tend to cause a movement throughout the entire range while the said variation continues and means controlled by the electrodynamic device for effecting regulation of a circuit.
3. Anelectrodynamic device'for regulating and other uses, com rising a ma net with poles disposed to pro uce a field of orcesu b stantiallyuniform throughout its working range, a conductor carrying a current and mounted for movement in and by the said field of force, means for producing an opposing force equal to the pull of said conductor at each position in its range of motion for a given electromagnetic energization of the parts, whereby a substantial variation in the electromagnetic energization of one of the said parts from a fixed amount will tend to -cause a movement throughout the entire range while the said variation continues and means controlled by the electrodynamic device for effecting regulation of a circuit.
4. An electrodynamic device for regulating and other uses, comprising a magnet with poles disposed to produce a field of force substantially uniform throughout its working range, a movable conductor carrying a current in said field of force, and a mounting therefor for giving a substantially uniform resistance to the motion ofthe conductor throughout its range and means controlled by the electrodynamic device for effecting regulation of a circuit.
5. An electrodynamic device for regulating and other uses, comprising a magnet with poles disposed to produce a field of force substantially uniform throughout its working range, a movable conductor carrying a current in said field of force, a mounting therefor 'for iving a substantially uniform resistance to t e motion of the conductor throughout its range, electrical connections for variably energizing one of the said magnet and conductor by a current variable with the function to be regulated, and means controlled by the relative motion of the conductor and magnet for regulating the said function.
6. An instrument of the character described, having a useful field of force, an electric conductor 1 carrying a current and mounted for a substantially large range of movement in said field, a mechanical force opposing the movement of said conductor, the ull of the field of force upon said conductor eing equal to the opposing mechanical force in all positions of the moving conductor throughout the whole range of travel, where'- by with a given electrical condition in the instrument, the tendency of the conductor to move is the same in all parts of the magnetic field and means controlled by said instrument for effecting regulation of a circuit.
7. An. instrument of the character described, having a substantiallyzuniform useful field of force produced by an electromagnet having a given number of turns of wire 1n its coil, and fixed pole-pieces and core, an electric conductor carrying a current and mounted for a substantially large range of movement in said field, and a substantially a fixed coil having a given number of turns current and mounted for a substantia large range of movement in said field, a substantially uniform mechanical pull opposing the movement of said conductor whereby when the balance between the electrical and mechanical forces is disturbed the conductor moves until the balance is restored and means controlled by-said instrument for'effecting re ulation of an electric circuit.
9. An e ectrodynamic device for regulating and other uses, comprising a magnet having fixed poles, a fixed core and a coil having a given number of turns, said parts being disposed to produce a field of force substantially uniform throughout its working range, a conductor carrying a current and mounted for movement in and by the said field of eld of force, an electric conductor carrying a y force, said moving conductor being moved without substantially varying the number of ampere-turns in the magnet, and without varying the substantially uniform field of force,
a mounting for said moving conductor and a fixed poles and a fixed core isposed toproduce a field of force substantially uniform throughout its Working range, said magnet comprising a given number of ampere-turns, a conductor carrying a current mounted for movement in and by the said field of force without varying said field in its movement and without varying the number of ampereturns of the magnet, means for producing an opposing force equal to the pull of said conductor at each position in its range of motion for a given electromagnetic energization of the parts whereby a substantial variation in the electromagnetic energization of one of the said parts from a fixed amount will tendto cause a movement throughout the entire range while the said variation continues and means controlled by said electrodynamic device for effecting regulation of a circuit.
- In testimony whereof I have signed this specification in the presence of two subscrib-
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835832A (en) * 1954-05-03 1958-05-20 Calidyne Company Inc Vibration generating apparatus
US3139545A (en) * 1958-03-05 1964-06-30 Dreyfus Jean Albert Electric motor with permanent magnet field and reciprocable coil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835832A (en) * 1954-05-03 1958-05-20 Calidyne Company Inc Vibration generating apparatus
US3139545A (en) * 1958-03-05 1964-06-30 Dreyfus Jean Albert Electric motor with permanent magnet field and reciprocable coil

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