GB554114A - Coils for relays and inductive apparatus - Google Patents

Coils for relays and inductive apparatus

Info

Publication number
GB554114A
GB554114A GB10733/42A GB1073342A GB554114A GB 554114 A GB554114 A GB 554114A GB 10733/42 A GB10733/42 A GB 10733/42A GB 1073342 A GB1073342 A GB 1073342A GB 554114 A GB554114 A GB 554114A
Authority
GB
United Kingdom
Prior art keywords
winding
windings
turns
relays
coils
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
GB10733/42A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB554114A publication Critical patent/GB554114A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

554,114. Inductances. STANDARD TELEPHONES & CABLES, Ltd. July 31, 1942, No. 10733. Convention date, Aug. 28, 1941. [Class 38 (ii)] [Also in Group XXXVII] In a relay or other device having a middle winding 4 sandwiched between two windings 3, 5 connected in series, the number of turns of the winding 4 equals the sum of the turns of the windings 3, 5 and the number of turns of the winding 3 differs from that of the winding 5. The relative sizes of the windings 3 and 5 is calculated or determined by experiment so as to give the highest degree of inductive balance between the winding 4 and the winding 3, 5. This is important in telephone systems where the two windings are connected to the tip and ring conductors of the talking circuit and quiet speech transmission is essential. The theoretical considerations determining the proportion of turns of winding 3 to winding 5 are discussed and in one example the ratio was 2/3.
GB10733/42A 1941-08-28 1942-07-31 Coils for relays and inductive apparatus Expired GB554114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US554114XA 1941-08-28 1941-08-28

Publications (1)

Publication Number Publication Date
GB554114A true GB554114A (en) 1943-06-21

Family

ID=21997613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10733/42A Expired GB554114A (en) 1941-08-28 1942-07-31 Coils for relays and inductive apparatus

Country Status (1)

Country Link
GB (1) GB554114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552925A1 (en) * 1983-10-03 1985-04-05 Itt SOLENOID

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552925A1 (en) * 1983-10-03 1985-04-05 Itt SOLENOID

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