GB293861A - Improvements in or relating to radio coupling devices and conductors therefor - Google Patents

Improvements in or relating to radio coupling devices and conductors therefor

Info

Publication number
GB293861A
GB293861A GB18663/28A GB1866328A GB293861A GB 293861 A GB293861 A GB 293861A GB 18663/28 A GB18663/28 A GB 18663/28A GB 1866328 A GB1866328 A GB 1866328A GB 293861 A GB293861 A GB 293861A
Authority
GB
United Kingdom
Prior art keywords
valve
transformer
windings
element consisting
beads
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
GB18663/28A
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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 Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Publication of GB293861A publication Critical patent/GB293861A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)

Abstract

293,861. Westinghouse Electric & Manufacturing Co., (Assignees of Davis, R. L.). July 15, 1927. [Convention date]. Transformers.-In order to reduce magnetic leakage to a minimum in an inter-valve transformer for a wireless system, the windings are made in the form of a coiled double conductor, one element consisting of a wire 12 upon which are threaded insulating beads 13, the other element consisting of a tube 11 surrounding the beads. Fig. 1 shows the transformer used as a coupling between a valve 1 energized from a master oscillator through amplifiers, frequency multipliers, &c., and a power valve 2 feeding an antenna. The primary 11 of the transformer is connected in the anode circuit of the valve 1 and forms in conjunction with a condenser 6 an oscillatory circuit tuned to the input frequency of the valve or a harmonic thereof. The secondary 12 of the transformer is connected to the grid circuit of the valve 2 through a biassing battery 19. Any electrostatic effect that may exist between the windings 11, 12 is augmented by condensers 20, 21 connected between the windings at opposite ends. The Specification as open to inspection under Sect. 91 (3) (a) states that the concentric form of winding may be replaced by two conductors in the form of straps secured together by insulation. This subject-matter does not appear in the Specification as accepted.
GB18663/28A 1927-07-15 1928-06-27 Improvements in or relating to radio coupling devices and conductors therefor Expired GB293861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US293861XA 1927-07-15 1927-07-15

Publications (1)

Publication Number Publication Date
GB293861A true GB293861A (en) 1928-11-08

Family

ID=21848747

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18663/28A Expired GB293861A (en) 1927-07-15 1928-06-27 Improvements in or relating to radio coupling devices and conductors therefor

Country Status (1)

Country Link
GB (1) GB293861A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6261437B1 (en) 1996-11-04 2001-07-17 Asea Brown Boveri Ab Anode, process for anodizing, anodized wire and electric device comprising such anodized wire
US6279850B1 (en) 1996-11-04 2001-08-28 Abb Ab Cable forerunner
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
US6369470B1 (en) 1996-11-04 2002-04-09 Abb Ab Axial cooling of a rotor
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
US6439497B1 (en) 1997-02-03 2002-08-27 Abb Ab Method and device for mounting a winding
US6465979B1 (en) 1997-02-03 2002-10-15 Abb Ab Series compensation of electric alternating current machines
US6525265B1 (en) 1997-11-28 2003-02-25 Asea Brown Boveri Ab High voltage power cable termination
US6525504B1 (en) 1997-11-28 2003-02-25 Abb Ab Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6577487B2 (en) 1996-05-29 2003-06-10 Asea Brown Boveri Ab Reduction of harmonics in AC machines
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6825585B1 (en) 1997-02-03 2004-11-30 Abb Ab End plate
US6828701B1 (en) 1997-02-03 2004-12-07 Asea Brown Boveri Ab Synchronous machine with power and voltage control
US6831388B1 (en) 1996-05-29 2004-12-14 Abb Ab Synchronous compensator plant

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6577487B2 (en) 1996-05-29 2003-06-10 Asea Brown Boveri Ab Reduction of harmonics in AC machines
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6831388B1 (en) 1996-05-29 2004-12-14 Abb Ab Synchronous compensator plant
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
US6261437B1 (en) 1996-11-04 2001-07-17 Asea Brown Boveri Ab Anode, process for anodizing, anodized wire and electric device comprising such anodized wire
US6279850B1 (en) 1996-11-04 2001-08-28 Abb Ab Cable forerunner
US6369470B1 (en) 1996-11-04 2002-04-09 Abb Ab Axial cooling of a rotor
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports
US6439497B1 (en) 1997-02-03 2002-08-27 Abb Ab Method and device for mounting a winding
US6825585B1 (en) 1997-02-03 2004-11-30 Abb Ab End plate
US6828701B1 (en) 1997-02-03 2004-12-07 Asea Brown Boveri Ab Synchronous machine with power and voltage control
US6465979B1 (en) 1997-02-03 2002-10-15 Abb Ab Series compensation of electric alternating current machines
US6525504B1 (en) 1997-11-28 2003-02-25 Abb Ab Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6525265B1 (en) 1997-11-28 2003-02-25 Asea Brown Boveri Ab High voltage power cable termination
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices

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