NL49023C - Air-powered signal horn. - Google Patents

Air-powered signal horn.

Info

Publication number
NL49023C
NL49023C NL85366A NL85366A NL49023C NL 49023 C NL49023 C NL 49023C NL 85366 A NL85366 A NL 85366A NL 85366 A NL85366 A NL 85366A NL 49023 C NL49023 C NL 49023C
Authority
NL
Netherlands
Prior art keywords
air
powered signal
signal horn
horn
powered
Prior art date
Application number
NL85366A
Other languages
Dutch (nl)
Original Assignee
Ekman Olof Ingemar Harald
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
Priority to DEE50492D priority Critical patent/DE721113C/en
Priority to CH201787D priority patent/CH201787A/en
Application filed by Ekman Olof Ingemar Harald filed Critical Ekman Olof Ingemar Harald
Priority to NL85366A priority patent/NL49023C/en
Application granted granted Critical
Publication of NL49023C publication Critical patent/NL49023C/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
    • G10K7/00—Sirens
    • 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)
  • Reciprocating Pumps (AREA)
NL85366A 1937-12-03 1937-12-06 Air-powered signal horn. NL49023C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEE50492D DE721113C (en) 1937-12-03 1937-12-03 Sound signaling device
CH201787D CH201787A (en) 1937-12-03 1937-12-04 Acoustic signal apparatus.
NL85366A NL49023C (en) 1937-12-03 1937-12-06 Air-powered signal horn.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEE50492D DE721113C (en) 1937-12-03 1937-12-03 Sound signaling device
CH201787T 1937-12-04
NL85366A NL49023C (en) 1937-12-03 1937-12-06 Air-powered signal horn.

Publications (1)

Publication Number Publication Date
NL49023C true NL49023C (en) 1940-08-15

Family

ID=40524585

Family Applications (1)

Application Number Title Priority Date Filing Date
NL85366A NL49023C (en) 1937-12-03 1937-12-06 Air-powered signal horn.

Country Status (3)

Country Link
CH (1) CH201787A (en)
DE (1) DE721113C (en)
NL (1) NL49023C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115619B (en) * 1961-02-01 1961-10-19 Westfaelische Metall Ind K G H Compressed air horn with throttle resistance in the air supply line

Also Published As

Publication number Publication date
CH201787A (en) 1939-03-01
DE721113C (en) 1942-05-26

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