GB298144A - Improvements in and relating to sound boxes for sound recording and sound reproducing machines - Google Patents

Improvements in and relating to sound boxes for sound recording and sound reproducing machines

Info

Publication number
GB298144A
GB298144A GB1727727A GB1727727A GB298144A GB 298144 A GB298144 A GB 298144A GB 1727727 A GB1727727 A GB 1727727A GB 1727727 A GB1727727 A GB 1727727A GB 298144 A GB298144 A GB 298144A
Authority
GB
United Kingdom
Prior art keywords
sound
box
relating
boxes
axis
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
GB1727727A
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 GB1727727A priority Critical patent/GB298144A/en
Publication of GB298144A publication Critical patent/GB298144A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Abstract

298,144. Barnard, T. K. June 29, 1927. Sound-box casings.-A gramophone or like sound-box is provided with a tone-arm connection comprising a short tube d supported on the back plate of the sound-box casing a by pivots c arranged on an axis which is - substantially parallel to the axis of oscillation of the stylus-bar and intersects the axis of the diaphragm. The pivots consist of screws c mounted in lugs b on the casing. A washer e of rubber or the like damps the oscillatory movement of the sound-box about the pivots.
GB1727727A 1927-06-29 1927-06-29 Improvements in and relating to sound boxes for sound recording and sound reproducing machines Expired GB298144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1727727A GB298144A (en) 1927-06-29 1927-06-29 Improvements in and relating to sound boxes for sound recording and sound reproducing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1727727A GB298144A (en) 1927-06-29 1927-06-29 Improvements in and relating to sound boxes for sound recording and sound reproducing machines

Publications (1)

Publication Number Publication Date
GB298144A true GB298144A (en) 1928-10-01

Family

ID=10092376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1727727A Expired GB298144A (en) 1927-06-29 1927-06-29 Improvements in and relating to sound boxes for sound recording and sound reproducing machines

Country Status (1)

Country Link
GB (1) GB298144A (en)

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