GB224976A - Improvements in variable inductances - Google Patents

Improvements in variable inductances

Info

Publication number
GB224976A
GB224976A GB2163123A GB2163123A GB224976A GB 224976 A GB224976 A GB 224976A GB 2163123 A GB2163123 A GB 2163123A GB 2163123 A GB2163123 A GB 2163123A GB 224976 A GB224976 A GB 224976A
Authority
GB
United Kingdom
Prior art keywords
disc
coils
plug
secured
wound
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
Application number
GB2163123A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2163123A priority Critical patent/GB224976A/en
Publication of GB224976A publication Critical patent/GB224976A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

224,976. Mansbridge, G. F. Aug. 27, 1923. Inductances.-In a variometer the elements are wound so as to have low distributed capacity and are mounted on discs capable of rotation relative to one another about a common axis passing through the centre of the discs. The elements may be of single layer spaced coils or basket coils or multilayer low-capacity coils of known type. In one form, the stator comprises a pair of opposite wound kidney-shaped coils c, d, Fig. 1, mounted in a recess in an ebonite disc a provided with legs a<1>, Fig. 5. The outer end of the coil c is connected to the inner end of the coil d and the other ends are connected to terminals on the lower side of the disc a. The rotor comprises a similar and similarly connected pair of coils mounted in a, recessed disc b, provided with a central hollow plug g mounted in a bush a<2> in the disc a. The plug g has a threaded end on which is mounted a nut g<2> to keep the discs in engagement. The plug is insulated from the coils by a sleeve g<1>. The rotor windings are connected by flexible leads passing through the plug g to terminals on the stator. Strips of metal are provided for connecting the latter terminals with those connected to the stator windings so that the windings are in series or parallel. A rod b<4> provided with a knob b<3> is secured to the plug g. Rotation is limited by an upstanding lip a<3> in the upper edge of the disc a, taking into a recess b<1> extending partly around the lower edge of the disc b. A pointer h secured to the disc a registers with a bevelled dial b<2> vulcanized or otherwise secured to the disc b. Cores of powdered iron obtained chemically or electrolytically may be inserted in the spaces l and a part or the whole of the mechanical supports may be made of this material. Each pair of coils may alternately be D-shaped or circular. The coils may be wound in sections and means provided for cutting one or more sections out of circuit. Specification 22206/05 is referred to.
GB2163123A 1923-08-27 1923-08-27 Improvements in variable inductances Expired GB224976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2163123A GB224976A (en) 1923-08-27 1923-08-27 Improvements in variable inductances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2163123A GB224976A (en) 1923-08-27 1923-08-27 Improvements in variable inductances

Publications (1)

Publication Number Publication Date
GB224976A true GB224976A (en) 1924-11-27

Family

ID=10166171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2163123A Expired GB224976A (en) 1923-08-27 1923-08-27 Improvements in variable inductances

Country Status (1)

Country Link
GB (1) GB224976A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757078C (en) * 1935-11-20 1954-02-01 Siemens & Halske A G High frequency variometer with two nested spherical or cylindrical coils
US2921280A (en) * 1957-05-13 1960-01-12 Sperry Rand Corp Variable coupling transformer device
US3382472A (en) * 1966-07-06 1968-05-07 Joachim A. Maass Relatively movable coils in slotted cores
US3492618A (en) * 1968-05-07 1970-01-27 Breeze Corp Split rotary electric transformer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757078C (en) * 1935-11-20 1954-02-01 Siemens & Halske A G High frequency variometer with two nested spherical or cylindrical coils
US2921280A (en) * 1957-05-13 1960-01-12 Sperry Rand Corp Variable coupling transformer device
US3382472A (en) * 1966-07-06 1968-05-07 Joachim A. Maass Relatively movable coils in slotted cores
US3492618A (en) * 1968-05-07 1970-01-27 Breeze Corp Split rotary electric transformer

Similar Documents

Publication Publication Date Title
US2628342A (en) Inductance coil
US2137392A (en) Variable inductor
GB224976A (en) Improvements in variable inductances
US2107172A (en) Variable inductance radio frequency coil
US1639044A (en) Variable inductance
US3130336A (en) Unit wound generator stator
US2451444A (en) Adjustable wave coupling system
US2027861A (en) Coupling coil
US1665947A (en) Inductance coil
US678047A (en) Induction-coil.
US1317280A (en) Of stretfobb
US2277826A (en) Antenna
US1647736A (en) Amplifier
US1537224A (en) Radiofrequency transformer
US1745842A (en) Induction-meter structure
GB430672A (en) Improvements in wireless tuning inductances
SU29519A1 (en) Self-induction coil
US1997020A (en) Electrical coil
GB414688A (en) Improvements in electric motors
AT149488B (en) Electric discharge vessel with spring support for the electrodes.
US2277149A (en) Switching mechanism for multiple frequency band receivers
US1549628A (en) High-resistance conductor for electrical machinery
US1569604A (en) Inductance
AT59860B (en) Circuit arrangement for an automatic current transmitter for setting step mechanisms.
SU109931A1 (en) Inductive transducer