GB191501751A - Subaqueous Sound Signalling Apparatus. - Google Patents

Subaqueous Sound Signalling Apparatus.

Info

Publication number
GB191501751A
GB191501751A GB191501751DA GB191501751A GB 191501751 A GB191501751 A GB 191501751A GB 191501751D A GB191501751D A GB 191501751DA GB 191501751 A GB191501751 A GB 191501751A
Authority
GB
United Kingdom
Prior art keywords
fork
siren
controlled
frequency
motor
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
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
Application granted granted Critical
Publication of GB191501751A publication Critical patent/GB191501751A/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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

1751. Signal Ges. Feb. 3, 1914, [Convention date]. [Addition to 3934/13.] Subaqueous sound signals.-In submarine signalling - apparatus, an auxiliary sound-emitting device, arranged near to, and used for testing, the sound receiver as described in the parent Specification, is made capable of emitting notes of different frequency and amplitude. For example, a set of bells may be provided, sounded singly by hammers, or a single tuning-fork may be used, sounded by a hammer, the prongs of the fork having adjustable weights to vary the pitch of the note. The hammers may be operated mechanically or electrically. In another arrangement, a tuning-fork is vibrated by directly-applied electro-magnetic means, the amplitude of oscillation being controlled by a variable resistance in the circuit of the electro-magnet, which is energized by an alternating-current generator coupled to an electric motor. The speed of revolution of the motor may be varied by means of a rheostat to control the frequency of the fork. Fig. 4 shows a casing 14 attached to a ship's hull, which is caused to vibrate by a siren 15 projecting into the casing. The siren is rotated by a motor 16 with a variable resistance 18 in circuit. The frequency may be ascertained from a speed indicator 19. Supply of compressed air to the siren through a pipe 20 is controlled by an electrically-operated valve 21. The abovedescribed sounding-devices may be controlled from a distance.
GB191501751D 1912-03-09 1915-02-03 Subaqueous Sound Signalling Apparatus. Expired GB191501751A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE191303934X 1912-03-09
DE191501751X 1914-02-03

Publications (1)

Publication Number Publication Date
GB191501751A true GB191501751A (en) 1915-12-16

Family

ID=32870602

Family Applications (2)

Application Number Title Priority Date Filing Date
GB191303934D Expired GB191303934A (en) 1912-03-09 1913-02-15
GB191501751D Expired GB191501751A (en) 1912-03-09 1915-02-03 Subaqueous Sound Signalling Apparatus.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB191303934D Expired GB191303934A (en) 1912-03-09 1913-02-15

Country Status (3)

Country Link
DE (1) DE301260C (en)
FR (3) FR454425A (en)
GB (2) GB191303934A (en)

Also Published As

Publication number Publication date
FR22069E (en) 1921-05-12
DE301260C (en)
FR454425A (en) 1913-07-04
GB191303934A (en) 1914-01-15
FR22075E (en) 1921-05-12

Similar Documents

Publication Publication Date Title
US1973673A (en) Sound or air wave apparatus
GB191501751A (en) Subaqueous Sound Signalling Apparatus.
US1523798A (en) Perception of radiant energy
GB1396824A (en) Electrical transducer for a musical instrument
US2033160A (en) Method and apparatus for measuring depths
US852646A (en) System of submarine signaling.
US636519A (en) Transmission of sound.
US1473332A (en) Detection of submerged objects
US1043703A (en) Signaling-horn, &c.
US2044820A (en) Apparatus for measuring depths
US1667418A (en) Subaqueous sound-signaling apparatus
Hicks Submarine Signaling
US848092A (en) Sea-sounding.
US495030A (en) Means for telegraphing
US1453316A (en) Acoustic method and apparatus
US1354299A (en) Sound-direction indicator
US752408A (en) Electrical apparatus for producing sound-signals
US1111351A (en) Submarine signal-receiving instrument.
US506150A (en) Signaling between vessels upon water
US852648A (en) Art of submarine signaling.
GB192725A (en) Sound signalling systems
GB191417109A (en) Improvements in or relating to a Method of and Apparatus for Measuring Distances under Water by means or Reflected Sound Waves.
Dorsey Electromagnetic Hydrophones or “Magnetophones
US844838A (en) Device for registering vibrations of musical sounds.
US1390984A (en) Circuit-closer for musical instruments