GB124814A - Improvements in or relating to Sound Detectors or Transmitters. - Google Patents

Improvements in or relating to Sound Detectors or Transmitters.

Info

Publication number
GB124814A
GB124814A GB563416A GB563416A GB124814A GB 124814 A GB124814 A GB 124814A GB 563416 A GB563416 A GB 563416A GB 563416 A GB563416 A GB 563416A GB 124814 A GB124814 A GB 124814A
Authority
GB
United Kingdom
Prior art keywords
tuning
microphone
fork
diaphragm
casing
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
GB563416A
Inventor
Herbert Raymond Wilding
Raoul Felice Bossini
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
Priority to GB563416A priority Critical patent/GB124814A/en
Publication of GB124814A publication Critical patent/GB124814A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

124,814. Wilding, H. R., and Bossini, R. F. April 17, 1916. Receiving audible signals.-Relates to apparatus particularly adapted for detecting rhythmical sounds such as those produced by an internalcombustion engine or propellers. The appliance comprises a diaphragm 3 contained in a casing 1 and connected by a rod 17 to a reinforcing tuning- fork 15. The other end of the rod is connected to the movable electrode of a microphone G secured in an extension of the casing. The second leg of the tuning-fork forms an armature to an induction coil 22 secured within the horn 12. The electric connexions are shown in Fig. 2, the microphone 6 being in series with the primary coil 24. and the telephone 26 with the secondary. The diaphragm and tuning-fork may be employed withwithout the microphone or induction coil.
GB563416A 1916-04-17 1916-04-17 Improvements in or relating to Sound Detectors or Transmitters. Expired GB124814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB563416A GB124814A (en) 1916-04-17 1916-04-17 Improvements in or relating to Sound Detectors or Transmitters.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB563416A GB124814A (en) 1916-04-17 1916-04-17 Improvements in or relating to Sound Detectors or Transmitters.

Publications (1)

Publication Number Publication Date
GB124814A true GB124814A (en) 1919-04-10

Family

ID=32342244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB563416A Expired GB124814A (en) 1916-04-17 1916-04-17 Improvements in or relating to Sound Detectors or Transmitters.

Country Status (1)

Country Link
GB (1) GB124814A (en)

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