GB659817A - Improvements in or relating to loudspeaker cabinets and the like receptacles - Google Patents

Improvements in or relating to loudspeaker cabinets and the like receptacles

Info

Publication number
GB659817A
GB659817A GB2665247A GB2665247A GB659817A GB 659817 A GB659817 A GB 659817A GB 2665247 A GB2665247 A GB 2665247A GB 2665247 A GB2665247 A GB 2665247A GB 659817 A GB659817 A GB 659817A
Authority
GB
United Kingdom
Prior art keywords
class
receptacles
relating
loudspeaker cabinets
loud
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
GB2665247A
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.)
ROBERT HENRY TRIER
Kolster Brandes Ltd
Original Assignee
ROBERT HENRY TRIER
Kolster Brandes Ltd
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 ROBERT HENRY TRIER, Kolster Brandes Ltd filed Critical ROBERT HENRY TRIER
Priority to GB2665247A priority Critical patent/GB659817A/en
Publication of GB659817A publication Critical patent/GB659817A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers

Abstract

659,817. Loud - speakers. KOLSTER BRANDES, Ltd., and TRIER, R. H. Oct. 3, 1947, No. 26652. [Class 13] [Also in Groups XXXIX and XL (c)] A loud - speaker 5 is mounted at the top end of an open tube 1 and is surmounted by a diffusing cone 7. The tube is made of stressed plywood lined with sound - absorbent material. Specifications 247,736, [Class 13], 310,490, [Class 40 (iv)], 368,654, [Group XXXIX], 375,166, 443,816, 487,576 and 659,818 are referred to.
GB2665247A 1947-10-03 1947-10-03 Improvements in or relating to loudspeaker cabinets and the like receptacles Expired GB659817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2665247A GB659817A (en) 1947-10-03 1947-10-03 Improvements in or relating to loudspeaker cabinets and the like receptacles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2665247A GB659817A (en) 1947-10-03 1947-10-03 Improvements in or relating to loudspeaker cabinets and the like receptacles

Publications (1)

Publication Number Publication Date
GB659817A true GB659817A (en) 1951-10-31

Family

ID=10247039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2665247A Expired GB659817A (en) 1947-10-03 1947-10-03 Improvements in or relating to loudspeaker cabinets and the like receptacles

Country Status (1)

Country Link
GB (1) GB659817A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065816A (en) * 1958-03-10 1962-11-27 Rangertone Electronics Corp Stereophonic sound distributor
US3104730A (en) * 1963-09-24 Speaker enclosure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104730A (en) * 1963-09-24 Speaker enclosure
US3065816A (en) * 1958-03-10 1962-11-27 Rangertone Electronics Corp Stereophonic sound distributor

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