GB138532A - Improvements in fluid-pressure operated sound signalling devices - Google Patents

Improvements in fluid-pressure operated sound signalling devices

Info

Publication number
GB138532A
GB138532A GB13447/19A GB1344719A GB138532A GB 138532 A GB138532 A GB 138532A GB 13447/19 A GB13447/19 A GB 13447/19A GB 1344719 A GB1344719 A GB 1344719A GB 138532 A GB138532 A GB 138532A
Authority
GB
United Kingdom
Prior art keywords
plate
diaphragm
fluid
sleeve
pressure
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
GB13447/19A
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 GB13447/19A priority Critical patent/GB138532A/en
Publication of GB138532A publication Critical patent/GB138532A/en
Expired legal-status Critical Current

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)
  • Road Signs Or Road Markings (AREA)

Abstract

138,532. Chollet, L. May 28, 1919. Diaphragm vibrators; instruments producing sounds by, puffs of air and other fiuids.-A sound warning-device for automobiles, &c. comprises a non-vibrated plate 3 and a flexible diaphragm 10 carrying a sleeve 7 which, under the action of fluid pressure on the diaphragm, is. reciprocated so as to vary the opening between its end and the plate 3. The plate 3 is made of brass or other metal and sufficiently thick to stand the pressure, or it may be connected by a rivet &c. to a thick bar mounted behind it. The diaphragm 10 is formed of leather, rubber, etc.; and the sleeve is kept up to the plate by a spring 9. The movement of the sleeve and the sound produced thereby is maintained by the variations in the pressure of the fluid owing' to its escape into the horn or trumpet 11.
GB13447/19A 1919-05-28 1919-05-28 Improvements in fluid-pressure operated sound signalling devices Expired GB138532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13447/19A GB138532A (en) 1919-05-28 1919-05-28 Improvements in fluid-pressure operated sound signalling devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13447/19A GB138532A (en) 1919-05-28 1919-05-28 Improvements in fluid-pressure operated sound signalling devices

Publications (1)

Publication Number Publication Date
GB138532A true GB138532A (en) 1920-02-12

Family

ID=10023147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13447/19A Expired GB138532A (en) 1919-05-28 1919-05-28 Improvements in fluid-pressure operated sound signalling devices

Country Status (1)

Country Link
GB (1) GB138532A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006833A2 (en) * 1978-07-03 1980-01-09 Mats Olsson Konsult Ab Low-frequency sound generator
US5005511A (en) * 1987-04-08 1991-04-09 Infrasonik Ab Air-driven low-frequency sound generator with positive feedback system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006833A2 (en) * 1978-07-03 1980-01-09 Mats Olsson Konsult Ab Low-frequency sound generator
EP0006833A3 (en) * 1978-07-03 1981-01-14 Mats Olsson Konsult Ab Low-frequency sound generator
DK154110B (en) * 1978-07-03 1988-10-10 Olsson Konsult Ab low frequency sound
US5005511A (en) * 1987-04-08 1991-04-09 Infrasonik Ab Air-driven low-frequency sound generator with positive feedback system

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