GB222934A - Improvements in and connected with trumpets of sound reproducing apparatus - Google Patents

Improvements in and connected with trumpets of sound reproducing apparatus

Info

Publication number
GB222934A
GB222934A GB1761123A GB1761123A GB222934A GB 222934 A GB222934 A GB 222934A GB 1761123 A GB1761123 A GB 1761123A GB 1761123 A GB1761123 A GB 1761123A GB 222934 A GB222934 A GB 222934A
Authority
GB
United Kingdom
Prior art keywords
trumpets
reproducing apparatus
sound reproducing
hering
collapsable
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
GB1761123A
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.)
CESARE HERING
Original Assignee
CESARE HERING
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 CESARE HERING filed Critical CESARE HERING
Priority to GB1761123A priority Critical patent/GB222934A/en
Publication of GB222934A publication Critical patent/GB222934A/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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

222,934. Hering, C. July 6, 1923. Sound magnifying and directing appliances. - A "loudspeaker " horn a is of the collapsable drinking-cup type, may be made of celluloid, and has a concave disc h fitted within one of the sections, preferably the mouth section.
GB1761123A 1923-07-06 1923-07-06 Improvements in and connected with trumpets of sound reproducing apparatus Expired GB222934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1761123A GB222934A (en) 1923-07-06 1923-07-06 Improvements in and connected with trumpets of sound reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1761123A GB222934A (en) 1923-07-06 1923-07-06 Improvements in and connected with trumpets of sound reproducing apparatus

Publications (1)

Publication Number Publication Date
GB222934A true GB222934A (en) 1924-10-06

Family

ID=10098161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1761123A Expired GB222934A (en) 1923-07-06 1923-07-06 Improvements in and connected with trumpets of sound reproducing apparatus

Country Status (1)

Country Link
GB (1) GB222934A (en)

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