GB149324A - Improvements in sound producing or receiving devices - Google Patents

Improvements in sound producing or receiving devices

Info

Publication number
GB149324A
GB149324A GB20363/20A GB2036320A GB149324A GB 149324 A GB149324 A GB 149324A GB 20363/20 A GB20363/20 A GB 20363/20A GB 2036320 A GB2036320 A GB 2036320A GB 149324 A GB149324 A GB 149324A
Authority
GB
United Kingdom
Prior art keywords
tube
chamber
gap
sound
subaqueous
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
GB20363/20A
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 GB149324A publication Critical patent/GB149324A/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)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Headphones And Earphones (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

149,324. Signal Ges. Aug. 4, 1919, [Convention date]. Addition to 147,939. Subaqueous audible signals; detecting subaqueous sounds. - In apparatus for producing and receiving sounds in which, as described in the parent Specification, t h e sound is transferred from one medium to another of different compressibility (e.g. air to water or vice versa) by the use of a small chamber 4 of flat form closed by a diaphragm 1 separating the media, and communicating through a small orifice 5 with a tube. 6 leading to the sound producer or receiver proper, a free space or gap 8 is left between the chamber and the tube. Mechanical continuity of structure is maintained, and entrance of dirt prevented, by a sleeve 7 embracing the chamber wall 2 and tube 6 and situated away from the gap 8.
GB20363/20A 1917-11-05 1920-07-10 Improvements in sound producing or receiving devices Expired GB149324A (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
GB149324A true GB149324A (en) 1921-10-06

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
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
GB20362/20A Expired GB148759A (en) 1917-11-05 1920-07-10 Improvements in sound producers and receivers

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
GB20375/20A Expired GB148428A (en) 1917-11-05 1920-07-10 Improvements in subaqueous sound producers and receivers

Family Applications After (1)

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

Country Status (1)

Country Link
GB (4) GB147939A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346240A1 (en) * 1982-12-27 1984-06-28 The Cornelius Co., Anoka, Minn. METHOD AND DEVICE FOR DISPENSING COLD DRINK
GB8903000D0 (en) * 1989-02-10 1989-03-30 Rolls Royce Plc A blade tip clearance control arrangement for a gas turbine engine

Also Published As

Publication number Publication date
GB148428A (en) 1921-10-10
GB147939A (en) 1921-09-22
GB148759A (en) 1921-10-10

Similar Documents

Publication Publication Date Title
GB969000A (en) Improvements in or relating to electro-acoustical apparatus
GB149324A (en) Improvements in sound producing or receiving devices
GB148427A (en) Sound signalling device for dense propagating mediums
GB147938A (en) Subaqueous sound producer and receiver
GB148982A (en) Sound signalling device with two plates for dense mediums
GB138917A (en) A device for ascertaining the direction of submarine sound waves
GB127296A (en) Improved Means for Detecting and Locating Subaqueous Sounds.
GB256677A (en) Improvements in and relating to the reproduction of sound
GB147420A (en) Improvements in or relating to submarine sound receivers
GB191325207A (en) Submarine Signal Receiving Apparatus.
GB361566A (en) Improvements in or relating to subaqueous sound-receiving apparatus
GB191406079A (en) Improvements in and connected with Devices for Recording Sounds.
GB118338A (en) An Improved Hydraulic Telemotor.
GB147941A (en) Improvements in subaqueous sound producers or receivers
GB149679A (en) Improvements in and relating to submarine sound signalling
GB191015102A (en) Improvements in Apparatus for Submarine Signalling.
GB148973A (en) Improvements in diaphragms for submarine sound signalling apparatus
GB127054A (en) Improved Means for Detecting and Locating Subaqueous Sounds.
GB191302185A (en) Receiver for Submarine Signalling.
GB191316298A (en) Improvements in Receivers for Submarine Sound Signals.
GB156521A (en) Transmitting arrangement for submarine sound signals
GB288276A (en) Improvements in sound producing and reproducing instruments
GB191504912A (en) Transmission of Sound Waves.
GB191511333A (en) Improvements in or connected with Marine Signalling Apparatus.
GB196100A (en) Improvements in submarine sound apparatus, particularly receiving apparatus