GB191207435A - Improved Electric Signalling Circuit for Train Despatching and like Systems. - Google Patents

Improved Electric Signalling Circuit for Train Despatching and like Systems.

Info

Publication number
GB191207435A
GB191207435A GB191207435DA GB191207435A GB 191207435 A GB191207435 A GB 191207435A GB 191207435D A GB191207435D A GB 191207435DA GB 191207435 A GB191207435 A GB 191207435A
Authority
GB
United Kingdom
Prior art keywords
station
relay
circuit
earth
impulses
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
Other languages
English (en)
Inventor
Joseph Conrow Field
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 GB191207435A publication Critical patent/GB191207435A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/18—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre
    • H04Q5/20—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre the subordinate centre permitting interconnection of subscribers connected thereto

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
  • Near-Field Transmission Systems (AREA)
GB191207435D 1911-03-30 1912-03-27 Improved Electric Signalling Circuit for Train Despatching and like Systems. Expired GB191207435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191207435XA 1911-03-30 1911-03-30

Publications (1)

Publication Number Publication Date
GB191207435A true GB191207435A (en) 1912-09-05

Family

ID=32596964

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191207435D Expired GB191207435A (en) 1911-03-30 1912-03-27 Improved Electric Signalling Circuit for Train Despatching and like Systems.

Country Status (2)

Country Link
DE (1) DE268755C (enrdf_load_stackoverflow)
GB (1) GB191207435A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE268755C (enrdf_load_stackoverflow)

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