GB247361A - Improvements in sound amplifying horns - Google Patents

Improvements in sound amplifying horns

Info

Publication number
GB247361A
GB247361A GB173425A GB173425A GB247361A GB 247361 A GB247361 A GB 247361A GB 173425 A GB173425 A GB 173425A GB 173425 A GB173425 A GB 173425A GB 247361 A GB247361 A GB 247361A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
casing
reflector
sound
material
jacket
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
GB173425A
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.)
GABRIEL GONZALEZ DE ANDIA YRAR
Original Assignee
GABRIEL GONZALEZ DE ANDIA YRAR
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34Arrangements 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
    • H04R1/345Arrangements 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

Abstract

247,361. Yrarrßzaval, G. G. de Andia-. Jan. 20, 1925. Loud-speakers.-In a sound amplifier comprising an expanding sound conduit opposed to and enclosed within a sound reflecting bell, the material of the reflecting surface is returned upon itself so as to form a jacket or casing behind the reflector. The jacket or casing may contain air or a material such as a cotton wool, cork dust, &c. Fig. 2 shows a sound conduit 1 and a double-walled reflector 2 in combination with an electric-lamp pedestal 8 containing a telephone receiver, whilst in a modification the amplifier is in an inverted position within a suspended lamp shade. Fig. 11 shows a reflector 14 mounted in a casing 15 which is fitted with a hollow cover 16 enclosing a telephone receiver 18. The casing 15 is fitted with a grille 21 and may be of ornamental design. The casing 15, cover 16 and reflector 14 may be formed of plastic material such as metallic cement. In another modification, Fig. 9, the double-walled reflector 2 is disguised as an ornamental figure 12 and is mounted over an opening in a plate 12<a> supported on legs 12<b> between which the telephonic receiver 9 is located. Specifications 213,253 and 244,162, [both in Class 13, Bells &c.,], are referred to.
GB173425A 1925-01-20 1925-01-20 Improvements in sound amplifying horns Expired GB247361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB173425A GB247361A (en) 1925-01-20 1925-01-20 Improvements in sound amplifying horns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB173425A GB247361A (en) 1925-01-20 1925-01-20 Improvements in sound amplifying horns

Publications (1)

Publication Number Publication Date
GB247361A true true GB247361A (en) 1926-02-18

Family

ID=9727054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB173425A Expired GB247361A (en) 1925-01-20 1925-01-20 Improvements in sound amplifying horns

Country Status (1)

Country Link
GB (1) GB247361A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116421A1 (en) * 1983-02-04 1984-08-22 George P. Sadorus Reflective audio assembly and picture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116421A1 (en) * 1983-02-04 1984-08-22 George P. Sadorus Reflective audio assembly and picture
US4541188A (en) * 1983-02-04 1985-09-17 Talkies International Corp. Reflective audio assembly and picture

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