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GB264989A - Improved joint for voice pipes or speaking tubes - Google Patents

Improved joint for voice pipes or speaking tubes

Info

Publication number
GB264989A
GB264989A GB3267825A GB3267825A GB264989A GB 264989 A GB264989 A GB 264989A GB 3267825 A GB3267825 A GB 3267825A GB 3267825 A GB3267825 A GB 3267825A GB 264989 A GB264989 A GB 264989A
Authority
GB
United Kingdom
Prior art keywords
voice
pipes
improved joint
speaking
speaking tubes
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
GB3267825A
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 GB3267825A priority Critical patent/GB264989A/en
Publication of GB264989A publication Critical patent/GB264989A/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)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

264,989. Ferguson, A. Dec. 28, 1925. Joints with yielding outer part compressed. - A voice pipe or speaking - tube comprises aligned pipe sections of aluminium or aluminium alloy. The pipe sections 1, 2 have their ends flanged and are jointed by means of an internal double conical ring a 3 and external coupling members 4, 5, 7.
GB3267825A 1925-12-28 1925-12-28 Improved joint for voice pipes or speaking tubes Expired GB264989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3267825A GB264989A (en) 1925-12-28 1925-12-28 Improved joint for voice pipes or speaking tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3267825A GB264989A (en) 1925-12-28 1925-12-28 Improved joint for voice pipes or speaking tubes

Publications (1)

Publication Number Publication Date
GB264989A true GB264989A (en) 1927-02-03

Family

ID=10342359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3267825A Expired GB264989A (en) 1925-12-28 1925-12-28 Improved joint for voice pipes or speaking tubes

Country Status (1)

Country Link
GB (1) GB264989A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008738A (en) * 1961-11-14 Longfellow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008738A (en) * 1961-11-14 Longfellow

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