GB148428A - Improvements in subaqueous sound producers and receivers - Google Patents

Improvements in subaqueous sound producers and receivers

Info

Publication number
GB148428A
GB148428A GB20375/20A GB2037520A GB148428A GB 148428 A GB148428 A GB 148428A GB 20375/20 A GB20375/20 A GB 20375/20A GB 2037520 A GB2037520 A GB 2037520A GB 148428 A GB148428 A GB 148428A
Authority
GB
United Kingdom
Prior art keywords
chamber
diaphragm
subaqueous
sound
tube
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
GB20375/20A
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.)
Signal GmbH
Original Assignee
Signal GmbH
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 Signal GmbH filed Critical Signal GmbH
Publication of GB148428A publication Critical patent/GB148428A/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)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Headphones And Earphones (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

148,428. Signal Ges. Nov. 5, 1917, [Convention date]. Addition to 147,939. Subaqueous audible signals; subaqueous transmission of speech.-In apparatus for receiving or transmitting subaqueous sound, the shallow chamber 4 interposed between the diaphragm 1 in contact with the water and the sound detector or producer proper, as described in the parent Specification, communicates through an opening b with a second chamber l<2>. In some cases the opening b may be closed by a diaphragm. The chamber l<2> may communicate through a tube with the ear, or sound produced for example by the voice may be led to the chamber l<2> through a tube, and is thence transmitted to the water through chamber 4 and diaphragm 1. The chamber l<2> may be formed to act as a resonator. In another form, the chamber l<2> is closed and contains the sound detector or producer. Fig. 3 shows a microphone m mounted within the chamber l<2> on a diaphragm r. By tuning the chamber l<2> and diaphragm 1 to the same tone, and varying the coupling effect by altering the volume of the coupling chamber 4, the apparatus may be made responsive to two frequencies lying more or less closely together. A series of additional chambers such as l<2> may be used.
GB20375/20A 1917-11-05 1920-07-10 Improvements in subaqueous sound producers and receivers Expired GB148428A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE148428X 1917-11-05
DE149324X 1919-08-04

Publications (1)

Publication Number Publication Date
GB148428A true GB148428A (en) 1921-10-10

Family

ID=25752314

Family Applications (4)

Application Number Title Priority Date Filing Date
GB19994/20A Expired GB147939A (en) 1917-11-05 1920-07-09 Improvements in submarine sound transmitting and receiving apparatus
GB20362/20A Expired GB148759A (en) 1917-11-05 1920-07-10 Improvements in sound producers and receivers
GB20375/20A Expired GB148428A (en) 1917-11-05 1920-07-10 Improvements in subaqueous sound producers and receivers
GB20363/20A Expired GB149324A (en) 1917-11-05 1920-07-10 Improvements in sound producing or receiving devices

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB19994/20A Expired GB147939A (en) 1917-11-05 1920-07-09 Improvements in submarine sound transmitting and receiving apparatus
GB20362/20A Expired GB148759A (en) 1917-11-05 1920-07-10 Improvements in sound producers and receivers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB20363/20A Expired GB149324A (en) 1917-11-05 1920-07-10 Improvements in sound producing or receiving devices

Country Status (1)

Country Link
GB (4) GB147939A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5092737A (en) * 1989-02-10 1992-03-03 Rolls-Royce Plc Blade tip clearance control arrangement for a gas turbine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8304388A (en) * 1982-12-27 1984-07-16 Cornelius Co METHOD AND APPARATUS FOR PREPARING COLD BEVERAGES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5092737A (en) * 1989-02-10 1992-03-03 Rolls-Royce Plc Blade tip clearance control arrangement for a gas turbine

Also Published As

Publication number Publication date
GB147939A (en) 1921-09-22
GB148759A (en) 1921-10-10
GB149324A (en) 1921-10-06

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