GB190902151A - Improvements in Telephone Systems. - Google Patents

Improvements in Telephone Systems.

Info

Publication number
GB190902151A
GB190902151A GB190902151DA GB190902151A GB 190902151 A GB190902151 A GB 190902151A GB 190902151D A GB190902151D A GB 190902151DA GB 190902151 A GB190902151 A GB 190902151A
Authority
GB
United Kingdom
Prior art keywords
telephone systems
wire
circuit
line
secondary winding
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
Inventor
Edward Wythe Smith
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
Application granted granted Critical
Publication of GB190902151A publication Critical patent/GB190902151A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

2151. Smith, E. W. Jan. 29. [Addition to 22,638/07.] Telephone systems.-One of the secondary windings a a<2> of a pbonopore coil used in telephone apparatus is included in whole or in part in the line-wire L. The receiver is in circuit with the secondary winding a a<2> or b<1> b<2>. When a second line-wire for use in a different direction is employed, the secondary winding b<1> b<2> is placed in circuit with it. The coils are wound as described in the parent Specification.
GB190902151D 1907-10-14 1909-01-29 Improvements in Telephone Systems. Expired GB190902151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190722638T 1907-10-14

Publications (1)

Publication Number Publication Date
GB190902151A true GB190902151A (en) 1909-09-30

Family

ID=32893909

Family Applications (2)

Application Number Title Priority Date Filing Date
GB190722638D Expired GB190722638A (en) 1907-10-14 1907-10-14 Improvements in the Winding and connection of Phonopore and like Induction Coils
GB190902151D Expired GB190902151A (en) 1907-10-14 1909-01-29 Improvements in Telephone Systems.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB190722638D Expired GB190722638A (en) 1907-10-14 1907-10-14 Improvements in the Winding and connection of Phonopore and like Induction Coils

Country Status (1)

Country Link
GB (2) GB190722638A (en)

Also Published As

Publication number Publication date
GB190722638A (en) 1908-01-30

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