GB171103A - Improvements in or relating to submarine signalling - Google Patents

Improvements in or relating to submarine signalling

Info

Publication number
GB171103A
GB171103A GB29292/21A GB2929221A GB171103A GB 171103 A GB171103 A GB 171103A GB 29292/21 A GB29292/21 A GB 29292/21A GB 2929221 A GB2929221 A GB 2929221A GB 171103 A GB171103 A GB 171103A
Authority
GB
United Kingdom
Prior art keywords
relating
submarine
submarine signalling
signalling
fessenden
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
GB29292/21A
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
Publication of GB171103A publication Critical patent/GB171103A/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
    • G01S1/72—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 ultrasonic, sonic or infrasonic 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)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

171,103. Fessenden, R. A. March 23, 1918, [Convention date]. Drawings to Specification. Propelling by air screws. In order that a detecting vessel may escape the acoustic observation of a submarine it may be propelled by aerial propellers driven by motors mounted in davits.
GB29292/21A 1918-03-23 1920-07-02 Improvements in or relating to submarine signalling Expired GB171103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US171103XA 1918-03-23 1918-03-23

Publications (1)

Publication Number Publication Date
GB171103A true GB171103A (en) 1922-01-03

Family

ID=21780774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29292/21A Expired GB171103A (en) 1918-03-23 1920-07-02 Improvements in or relating to submarine signalling

Country Status (1)

Country Link
GB (1) GB171103A (en)

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