GB147147A - Improvements in and relating to wireless signalling systems - Google Patents

Improvements in and relating to wireless signalling systems

Info

Publication number
GB147147A
GB147147A GB19196/20A GB1919620A GB147147A GB 147147 A GB147147 A GB 147147A GB 19196/20 A GB19196/20 A GB 19196/20A GB 1919620 A GB1919620 A GB 1919620A GB 147147 A GB147147 A GB 147147A
Authority
GB
United Kingdom
Prior art keywords
relating
signalling systems
wireless signalling
grids
filament
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
GB19196/20A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21767227&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB147147(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB147147A publication Critical patent/GB147147A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/22—Circuits for receivers in which no local oscillation is generated

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

147,147. British Thomson - Houston Co., (Assignees of Alexanderson, E. F. .W.). Oct. 29, 1913, [Convention date]. Vacuum tubes.-In a valve having two grids, two anodes and a single filament, an additional electrode 42, maintained at a positive potential and coiled round the filament, is provided to prevent the reaction of interfering static effects between the two grids.
GB19196/20A 1913-10-29 1920-07-07 Improvements in and relating to wireless signalling systems Expired GB147147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79799813A US1173079A (en) 1913-10-29 1913-10-29 Selective tuning system.

Publications (1)

Publication Number Publication Date
GB147147A true GB147147A (en) 1921-10-06

Family

ID=21767227

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19196/20A Expired GB147147A (en) 1913-10-29 1920-07-07 Improvements in and relating to wireless signalling systems

Country Status (4)

Country Link
US (1) US1173079A (en)
DE (1) DE299301C (en)
FR (1) FR529012A (en)
GB (1) GB147147A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207478A5 (en) * 1972-11-20 1974-06-14 Pomagalski Sa

Also Published As

Publication number Publication date
US1173079A (en) 1916-02-22
DE299301C (en)
FR529012A (en) 1921-11-22

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