BE497688A - Sound devices - Google Patents

Sound devices

Info

Publication number
BE497688A
BE497688A BE497688A BE497688A BE497688A BE 497688 A BE497688 A BE 497688A BE 497688 A BE497688 A BE 497688A BE 497688 A BE497688 A BE 497688A BE 497688 A BE497688 A BE 497688A
Authority
BE
Belgium
Prior art keywords
sound devices
sound
devices
Prior art date
Application number
BE497688A
Other languages
French (fr)
Original Assignee
Vickers Armstrongs Ltd
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 Vickers Armstrongs Ltd filed Critical Vickers Armstrongs Ltd
Publication of BE497688A publication Critical patent/BE497688A/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
    • G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measuring Volume Flow (AREA)
  • Reciprocating Pumps (AREA)
  • Special Spraying Apparatus (AREA)
BE497688A 1949-08-24 1950-08-21 Sound devices BE497688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2204449A GB676375A (en) 1949-08-24 1949-08-24 Improvements in or relating to sound producing instruments

Publications (1)

Publication Number Publication Date
BE497688A true BE497688A (en) 1950-12-16

Family

ID=10172960

Family Applications (1)

Application Number Title Priority Date Filing Date
BE497688A BE497688A (en) 1949-08-24 1950-08-21 Sound devices

Country Status (4)

Country Link
BE (1) BE497688A (en)
DE (1) DE855374C (en)
FR (1) FR1023547A (en)
GB (1) GB676375A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138344B (en) * 1958-09-10 1962-10-18 Keiichi Shintaku Sound generator
CN112216261A (en) * 2019-07-09 2021-01-12 中车唐山机车车辆有限公司 Air whistle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE434184C (en) * 1926-09-16 Maihak Ag Signaling device for air, steam and gas drive
DE464515C (en) * 1928-08-18 Umberto Galli Compressed air horn, especially for motor vehicles, with a membrane clamped between two circular nozzles, toothed at the edge, in which the blown air flows over from the top of the membrane to the bottom through several segment openings in the membrane
DE458690C (en) * 1925-12-08 1928-04-17 Friedrich Ufrecht Compressed air horn with two vibrating plates, one of which is resiliently clamped and the other is connected to it by an intermediate link
DE577514C (en) * 1928-12-04 1933-06-01 Helge Sven Albert Rydberg Sound signaling device operated by a pressure medium
DE578766C (en) * 1932-04-13 1933-06-17 Joseph Gierse Dr Device for producing two or more tones, especially horns for motor vehicles

Also Published As

Publication number Publication date
GB676375A (en) 1952-07-23
DE855374C (en) 1952-11-13
FR1023547A (en) 1953-03-19

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