GB168910A - Sound-conducting tubes - Google Patents

Sound-conducting tubes

Info

Publication number
GB168910A
GB168910A GB2397321A GB2397321A GB168910A GB 168910 A GB168910 A GB 168910A GB 2397321 A GB2397321 A GB 2397321A GB 2397321 A GB2397321 A GB 2397321A GB 168910 A GB168910 A GB 168910A
Authority
GB
United Kingdom
Prior art keywords
sound
chamber
tubes
length
main tube
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
GB2397321A
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
Priority to GB2397321A priority Critical patent/GB168910A/en
Publication of GB168910A publication Critical patent/GB168910A/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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Headphones And Earphones (AREA)

Abstract

168,910. Baron, H., (Signal Ges.). Sept. 8, 1921. Speaking-tubes-Tubes of considerable length and large diameter for the conduction of sound, have a tapered portion 2, Fig. 1, at the ear end the length of this portion being of the order cf three times the wave length of the sound used. In an alternative arrangement, Fig. 3, a small flat sound-box 5, forming a resonating chamber with its internal space turned to the sound frequency, is connected to the main tube. There may be a diaphragm 6 also tuned to the sound frequency, or the chamber may be connected to the main tube by a rigid wall having a small opening. The sound is conducted to the ear by means of a flexible pipe 3 or by an opening in the chamber.
GB2397321A 1921-09-08 1921-09-08 Sound-conducting tubes Expired GB168910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2397321A GB168910A (en) 1921-09-08 1921-09-08 Sound-conducting tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2397321A GB168910A (en) 1921-09-08 1921-09-08 Sound-conducting tubes

Publications (1)

Publication Number Publication Date
GB168910A true GB168910A (en) 1922-12-08

Family

ID=10204360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2397321A Expired GB168910A (en) 1921-09-08 1921-09-08 Sound-conducting tubes

Country Status (1)

Country Link
GB (1) GB168910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360517A2 (en) * 1988-09-21 1990-03-28 Sony Corporation Sound reproducing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360517A2 (en) * 1988-09-21 1990-03-28 Sony Corporation Sound reproducing apparatus
EP0360517A3 (en) * 1988-09-21 1992-04-29 Sony Corporation Sound reproducing apparatus

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