GB493203A - Improvements relating to electrical signalling apparatus - Google Patents

Improvements relating to electrical signalling apparatus

Info

Publication number
GB493203A
GB493203A GB992037A GB992037A GB493203A GB 493203 A GB493203 A GB 493203A GB 992037 A GB992037 A GB 992037A GB 992037 A GB992037 A GB 992037A GB 493203 A GB493203 A GB 493203A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
signalling apparatus
release
electrical signalling
delayed
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
GB992037A
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.)
GENT AND Co Ltd
Original Assignee
GENT AND Co Ltd
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 GENT AND Co Ltd filed Critical GENT AND Co Ltd
Priority to GB992037A priority Critical patent/GB493203A/en
Publication of GB493203A publication Critical patent/GB493203A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/002—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Relay Circuits (AREA)

Abstract

493,203. Electromagnetic relays. GENT & CO., Ltd., and REMINGTON, C. April 7, 1937, No. 9920. [Class 38 (v)] [Also in Groups XXXVIII and XXXIX] In a delay-acting relay for use in electric signalling systems, the operation and release is delayed by a shading sleeve 12 and the release is further delayed by contacts 16, 17, which maintain the relay circuit closed for a predetermined time by intermittent operation produced by an oscillating weight 15.
GB992037A 1937-04-07 1937-04-07 Improvements relating to electrical signalling apparatus Expired GB493203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB992037A GB493203A (en) 1937-04-07 1937-04-07 Improvements relating to electrical signalling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB992037A GB493203A (en) 1937-04-07 1937-04-07 Improvements relating to electrical signalling apparatus

Publications (1)

Publication Number Publication Date
GB493203A true GB493203A (en) 1938-10-05

Family

ID=9881214

Family Applications (1)

Application Number Title Priority Date Filing Date
GB992037A Expired GB493203A (en) 1937-04-07 1937-04-07 Improvements relating to electrical signalling apparatus

Country Status (1)

Country Link
GB (1) GB493203A (en)

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