GB276680A - Improvements in acoustic sounding apparatus - Google Patents

Improvements in acoustic sounding apparatus

Info

Publication number
GB276680A
GB276680A GB22363/27A GB2236327A GB276680A GB 276680 A GB276680 A GB 276680A GB 22363/27 A GB22363/27 A GB 22363/27A GB 2236327 A GB2236327 A GB 2236327A GB 276680 A GB276680 A GB 276680A
Authority
GB
United Kingdom
Prior art keywords
light
spot
screen
instrument
lamp
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
GB22363/27A
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
Publication of GB276680A publication Critical patent/GB276680A/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)
  • Toys (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

276,680. Behm, A. Aug. 28, 1926, [Convention date]. Mounting and supporting indicating-apparatus. -Comprises a mounting for an acoustic sounding apparatus for measuring distances in water or air by the echo method. A ball lens 18 on a spring 19 is arranged in front of a lamp 21 and the light passes through a lens 14 and is reflected in the form of a spot of light 16 from the mirror 12 on to a screen 17. The screen is made of a material powerfully dispersive of light, such as tracing paper, parchment, milky glass &c.. By unscrewing a cap in the front of the casing, the lamp 21 may be removed. The instrument is mounted on the board 30 by the supports 29 of the axle 6<1> of the cam and spring 25 is suspended from any of a series of holes in a bow-shaped member 31 fixed to the board. The instrument as a whole may tilt about the axis 6' for the observer to survey the whole range of the curved scale. A screen 33 with foldable supports 33<1> is fitted.. On a signal being emitted, a a shot fired, for instance, a spot of light travels rapidly up the scale. When the echo is received in another microphone the ball lens 18 receives a sudden movement which causes the spot of light to trace a transverse path 16<11> to the original path 16<1>.
GB22363/27A 1926-08-28 1927-08-25 Improvements in acoustic sounding apparatus Expired GB276680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE276680X 1926-08-28

Publications (1)

Publication Number Publication Date
GB276680A true GB276680A (en) 1928-05-03

Family

ID=6028182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22363/27A Expired GB276680A (en) 1926-08-28 1927-08-25 Improvements in acoustic sounding apparatus

Country Status (2)

Country Link
US (1) US1830254A (en)
GB (1) GB276680A (en)

Also Published As

Publication number Publication date
US1830254A (en) 1931-11-03

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