GB127675A - Improvements in and relating to Wireless Telegraphic Apparatus. - Google Patents

Improvements in and relating to Wireless Telegraphic Apparatus.

Info

Publication number
GB127675A
GB127675A GB742717A GB742717A GB127675A GB 127675 A GB127675 A GB 127675A GB 742717 A GB742717 A GB 742717A GB 742717 A GB742717 A GB 742717A GB 127675 A GB127675 A GB 127675A
Authority
GB
United Kingdom
Prior art keywords
coil
sheets
condenser
grid
produce
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
GB742717A
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
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB742717A priority Critical patent/GB127675A/en
Publication of GB127675A publication Critical patent/GB127675A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

127,675. British Thomson - Houston Co., (General Electric Co.). May 23, 1917. Aerials and like radiating and receiving conductors; wireless telegraphy and signalling.-A receiving-conductor for directive working consists of a coil 1 having a la.rge number of turns of insulated wire placed over a number of copper sheets or coils 2 having low impedance. The sheets 2 are placed at right-angles to the plane of the coil 1 and are mounted in a frame 3 adapted to be rotated by a handle 6. The terminals 7, 8 of the coil 1 are connected to the grid 9 and cathode of a device 11; and a telephone 12, shunted by a condenser 15, is connected in the plate circuit of the device 11. A tuning-condenser 16 is placed across the grid 9 and the cathode, and a condenser 17 is placed in the grid circuit. In operation, the coil 1 is rotated until its plane is in the direction of the received waves, when the maximum effect will be produced in the telephone 12. The received waves will produce no effect on the sheets 2; but signals or strays coming from other directions will produce current in the sheets 2, which will be dissipated in the sheets and will produce no appreciable effect upon the coil 1.
GB742717A 1917-05-23 1917-05-23 Improvements in and relating to Wireless Telegraphic Apparatus. Expired GB127675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB742717A GB127675A (en) 1917-05-23 1917-05-23 Improvements in and relating to Wireless Telegraphic Apparatus.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB742717A GB127675A (en) 1917-05-23 1917-05-23 Improvements in and relating to Wireless Telegraphic Apparatus.

Publications (1)

Publication Number Publication Date
GB127675A true GB127675A (en) 1919-06-12

Family

ID=32670496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB742717A Expired GB127675A (en) 1917-05-23 1917-05-23 Improvements in and relating to Wireless Telegraphic Apparatus.

Country Status (1)

Country Link
GB (1) GB127675A (en)

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