GB182519A - Improvements in and connected with gramophones and the like sound reproducing instruments - Google Patents

Improvements in and connected with gramophones and the like sound reproducing instruments

Info

Publication number
GB182519A
GB182519A GB808421A GB808421A GB182519A GB 182519 A GB182519 A GB 182519A GB 808421 A GB808421 A GB 808421A GB 808421 A GB808421 A GB 808421A GB 182519 A GB182519 A GB 182519A
Authority
GB
United Kingdom
Prior art keywords
gramophones
sound reproducing
horn
tone arm
valve
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
GB808421A
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.)
RICHARD WILLIAM TARR
Original Assignee
RICHARD WILLIAM TARR
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 RICHARD WILLIAM TARR filed Critical RICHARD WILLIAM TARR
Priority to GB808421A priority Critical patent/GB182519A/en
Publication of GB182519A publication Critical patent/GB182519A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

182,519. Tarr, R. W. Nov. 30, 1921. Sound-directing appliances. - A gramophone casing has two or more horns mounted therein, and a valve is provided whereby any horn can be placed in connection with the tone arm. Fig. 1 shows a flap valve 9 movable by a lever 11 to connect either horn 7 or 8 with the tone arm 5. Fig. 2 shows a sliding valve 22 movable by a rod 29 to connect either horn 18 or 19 with the tone arm extension 27.
GB808421A 1921-11-30 1921-11-30 Improvements in and connected with gramophones and the like sound reproducing instruments Expired GB182519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB808421A GB182519A (en) 1921-11-30 1921-11-30 Improvements in and connected with gramophones and the like sound reproducing instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB808421A GB182519A (en) 1921-11-30 1921-11-30 Improvements in and connected with gramophones and the like sound reproducing instruments

Publications (1)

Publication Number Publication Date
GB182519A true GB182519A (en) 1922-07-13

Family

ID=9845432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB808421A Expired GB182519A (en) 1921-11-30 1921-11-30 Improvements in and connected with gramophones and the like sound reproducing instruments

Country Status (1)

Country Link
GB (1) GB182519A (en)

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