GB421205A - Improvements in and relating to echo sounding apparatus - Google Patents

Improvements in and relating to echo sounding apparatus

Info

Publication number
GB421205A
GB421205A GB2275433A GB2275433A GB421205A GB 421205 A GB421205 A GB 421205A GB 2275433 A GB2275433 A GB 2275433A GB 2275433 A GB2275433 A GB 2275433A GB 421205 A GB421205 A GB 421205A
Authority
GB
United Kingdom
Prior art keywords
echo
essex
hughes
armature
soft iron
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
GB2275433A
Other languages
English (en)
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.)
Hughes Henry and Son Ltd
Original Assignee
Hughes Henry and Son 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
Priority to BE404582D priority Critical patent/BE404582A/xx
Application filed by Hughes Henry and Son Ltd filed Critical Hughes Henry and Son Ltd
Priority to GB2275433A priority patent/GB421205A/en
Priority to DEH140866D priority patent/DE660281C/de
Priority to FR777057D priority patent/FR777057A/fr
Publication of GB421205A publication Critical patent/GB421205A/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)
  • Magnetic Treatment Devices (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB2275433A 1933-08-15 1933-08-15 Improvements in and relating to echo sounding apparatus Expired GB421205A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE404582D BE404582A (enrdf_load_stackoverflow) 1933-08-15
GB2275433A GB421205A (en) 1933-08-15 1933-08-15 Improvements in and relating to echo sounding apparatus
DEH140866D DE660281C (de) 1933-08-15 1934-08-03 Echoloteinrichtung, bei der die Zeit gemessen wird, die vom Augenblick der in regelmaessigen Abstaenden erfolgenden Aussendung des Signals bis zum Empfang des Echos verstreicht
FR777057D FR777057A (fr) 1933-08-15 1934-08-09 Perfectionnements aux appareils de sondage par l'écho

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2275433A GB421205A (en) 1933-08-15 1933-08-15 Improvements in and relating to echo sounding apparatus

Publications (1)

Publication Number Publication Date
GB421205A true GB421205A (en) 1934-12-17

Family

ID=10184532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2275433A Expired GB421205A (en) 1933-08-15 1933-08-15 Improvements in and relating to echo sounding apparatus

Country Status (4)

Country Link
BE (1) BE404582A (enrdf_load_stackoverflow)
DE (1) DE660281C (enrdf_load_stackoverflow)
FR (1) FR777057A (enrdf_load_stackoverflow)
GB (1) GB421205A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE480461A (enrdf_load_stackoverflow) * 1947-02-20

Also Published As

Publication number Publication date
FR777057A (fr) 1935-02-11
DE660281C (de) 1938-05-23
BE404582A (enrdf_load_stackoverflow)

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