US1721853A - Electric-current regulator - Google Patents

Electric-current regulator Download PDF

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Publication number
US1721853A
US1721853A US145691A US14569126A US1721853A US 1721853 A US1721853 A US 1721853A US 145691 A US145691 A US 145691A US 14569126 A US14569126 A US 14569126A US 1721853 A US1721853 A US 1721853A
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US
United States
Prior art keywords
electric
coil
current
driven member
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US145691A
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English (en)
Inventor
Boykow Johann Maria
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MESSGERATE BOYKOW GmbH
Original Assignee
MESSGERATE BOYKOW GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MESSGERATE BOYKOW GmbH filed Critical MESSGERATE BOYKOW GmbH
Application granted granted Critical
Publication of US1721853A publication Critical patent/US1721853A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/0016—Control of angular speed of one shaft without controlling the prime mover
    • H02P29/0022—Controlling a brake between the prime mover and the load

Definitions

  • My invention relates to im rovements in electric current regulators, an the object of the improvements is to provide a regulator by means of which the intensity of an electric current may be regulated proportionally to the number of revolutions per minute of a rotary member so that upon measurement of said current the speed of said member may be determined.
  • my invention consists in combining an element upon which is exerted a torque by mechanism driven by the shaft.
  • Fig. 1 is a sectional elevation showing my as improved apparatus
  • Fig. 2 is a detail view showing the braking coil and the switch controlled thereby for regulating the resistance regulating the intensit of t e current flowing through the 4.0 said coi and Fig. 3, is a diagram showing the electrical connections of the apparatus.
  • a shaft 2 rotated from a suitable source of energy at the desired velocity carries magnets 1.
  • a metallic cylinder 4 is mounted which is surrounded by a stationary cylinder 5 fixed to a head 45 secured to a casing 28, the object of the cylinder 5 being to prevent the air carried along by the magnets from acting on the cylinder 4 and affecting the moment thereof.
  • a coil 6 is carried by the shaft 3, which coil is located within a stationary magnetic field 7. Thus the coil 6 is rigidly connected with the cylinder 4.
  • a switching apparatus S controlling electromagnets 8 and 9 of a reversing gearing W.
  • the said reversing gearing is adapted to operate a current regulator R controlling the intensity of the current flowing through the coil 6.
  • the switching apparatus S, the reversing gearing W and the regulator R are constructed as follows: To the end of the shaft 3 a crank 46 is secured the pin 10 of which engages in the bifurcated bottom end of the lever 12 rockingly mounted on a fixed bolt 11 and carrying at its op osite end slide contacts 13 cooperating wit contact segments 14, 15 and 15'. According to the posit-ion of the coil 6 within the stationary magnetic field 7 current is supplied from a source 17 to the electromagnet 8 or 9.
  • the said gear wheels are continuously rotated in the same direction from a suitable source of power.
  • the gear wheels 22 and 22' cooperate with a bevel gear wheel 23 the shaft 24 of which carries a contact brush 25 in slidin enga ement with a segmental contact bar 2 and t e turns or taps of a rheostat.
  • the gear wheel 23 is engaged byeither the gear wheel 22 or 22, respectively so that the brush 25 is turned in one or the other direction for increasing or reducing the resistance.
  • the rotar electromagnets 1 are energized by means of a source of electric current 29 through brushes 30 bearings on slide rings 31.
  • the said slide rings 31 are electrically connected by rods 32 with rods 33 and 34 embedded in and insulated from the shaft 2.
  • the rods 34 are connected by leads 35 with the coils 36 of the electromagnets 1.
  • the coils 37 of the stationary electroma nets 7 are connected in series with the coi s 36, so that the current intensit is the same in both coils, and the fields pro uced thereby are in a definite ratio.
  • the current is supplied to the coil 6 through contact sprin 38 engaging contact pins 39 disposed coaxially of the shaft 3, and connected with the coil 6 by leads 40.
  • the contact springs 38 are connected respectively with a source of electric energy 41 and the rheostat B, so that the source of electric energy 41, the coil 6 and the rheostat R are included in the same circuit.
  • the moment of the metal cylinder 4 depends only on the angular velocity of the electromagnets 1 and that in a higher degree the smaller the temperature coefiicient of the metal of the cylinder at is.
  • the intensity of the current flowing through the coil 6 is proportional to the angular velocity of the magnetic system 1.
  • the apparatus can be used for various purposes where it is desired to control a current in dependence on the rotary speed of an obect.
  • the apparatus can be used in connection with measuring instruments for generating a moment correspondi'ng to a certain number of revolutions, at a place located at a distance from the apparatus.
  • the apparatus I am enabled directly to measure velocities, to make long distance indications, etc.
  • An apparatus for regulating electric current intensities proportionally to a number of revolutions per minute comprising a loose coupling having a rotary driving member and a driven member, an electric brake connected with said driven member, and means controlled by the driven member for regulatingv the current of said electric brake so that the moment of the brake is equal to that of the coupling.
  • An apparatus for regulating electric current intensities proportionally to a number of revolutions per minute comprising a loose coupling having a rotary magnetic driving member, and a rotary metal cylinder within the magnetic field of said driving member, an electrio bralge connected with said driven member, and -means controlled by the driven member for regulating the current of said electric brake so that the moment of the brake is equal to that of the coupling.
  • An apparatus for regulating electric current intensities proportionally to a number of revolutions per minute comprising a loose coupling having a rotary magnetic driving member, a rotary metal cylinder within the magnetic field of said driving member and a cylindrical member between said driving member and metallic cylinder, an electric brake connected with said driven member, and means controlled by the driven member for regulating the current of said electric brake so that the moment of the brake is equal to that of the coupling.
  • An apparatus for regulating electric current intensities proportionally to a number of revolutions per minute comprising a loose coupling having a rotary drivlng member and a driven member, an electric brake connected with said driven member comprising a stationary magnetic member and an electric coil connected with said driven member and included in the circuit the current intensity of which is to be regulated, and an electric switch apparatusconnected with said coil for varying the intensity of the current flowing through said circuit.
  • An apparatus for regulating electric current intensities proportionally to a number of revolutions per minute comprising a loose coupling having a rotary driving member and a driven member, an electric brake connected with said driven member comprising a stationary ma etic member and an electric coil connecte with said driven member and included in the circuit the current intensity of which is to be regulated, and an electric switch apparatus connected with said coil and comprising a rheostat included in the circuit of said coil, electric regulatin means for said rheostat, and a switch contro ling said re ulating means.
  • the method 0 measuring the speed of a rotating body which comprises creating a rotating magnetic field whose speedis proplortional to the speed of said body and proucing a torque on a conducting element positioned in said field, counteracting said torque with an opposing force so as to maintain said element in normal position, and measuring said force.
  • the method of measuring the speed of a rotating body which comprises creating a rotating magnetic field whose speed is proportional to the speed of said body and producing a torque on a conducting element positioned in said field, counteracting said torque with an equivalent torque produced by an opposing regulatable magnetic field, and measuring the current required to maintain said last mentioned magnetic field.
  • An apparatus for regulating an electric current proportionally to the speed of a rotating body comprising a loose coupling having a rotary drivin member and a driven member, an electric rake connected with said driven member and including an electric coil traversed by a re ulatable current, and a rheostat controlle by said driven -member and included in the circuit of said coil, whereby the strength of the said current is proportioned to the braking force necessary to balance the torque on said driven member.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
US145691A 1925-11-07 1926-11-01 Electric-current regulator Expired - Lifetime US1721853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1721853X 1925-11-07

Publications (1)

Publication Number Publication Date
US1721853A true US1721853A (en) 1929-07-23

Family

ID=7740604

Family Applications (1)

Application Number Title Priority Date Filing Date
US145691A Expired - Lifetime US1721853A (en) 1925-11-07 1926-11-01 Electric-current regulator

Country Status (3)

Country Link
US (1) US1721853A (enrdf_load_stackoverflow)
FR (1) FR623390A (enrdf_load_stackoverflow)
GB (1) GB261027A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492537A (en) * 1945-08-02 1949-12-27 John J Root Electrical amplifying instrument
US3077782A (en) * 1956-04-02 1963-02-19 North American Aviation Inc Inertial velocity meter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492537A (en) * 1945-08-02 1949-12-27 John J Root Electrical amplifying instrument
US3077782A (en) * 1956-04-02 1963-02-19 North American Aviation Inc Inertial velocity meter

Also Published As

Publication number Publication date
FR623390A (fr) 1927-06-23
GB261027A (enrdf_load_stackoverflow) 1928-02-06

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