GB477868A - Improvements in sound recording apparatus - Google Patents

Improvements in sound recording apparatus

Info

Publication number
GB477868A
GB477868A GB4519/37A GB451937A GB477868A GB 477868 A GB477868 A GB 477868A GB 4519/37 A GB4519/37 A GB 4519/37A GB 451937 A GB451937 A GB 451937A GB 477868 A GB477868 A GB 477868A
Authority
GB
United Kingdom
Prior art keywords
sound
recording
tone
arm
feb
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
GB4519/37A
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.)
Ronag A G
Original Assignee
Ronag A G
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 Ronag A G filed Critical Ronag A G
Publication of GB477868A publication Critical patent/GB477868A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

477,868. Sound recording apparatus. RONAG AKT.-GES. Feb. 15, 1937, No. 4519. Convention date, Feb. 1. [Class 40 (ii)] [Also in Group XXXIX] An electrically excited diaphragm device 7 is constructed as an independent unit and detachably connected to an acoustically operating recording sound-box so that it can be replaced by a speaking-tube 16 to enable a record to be made either of sound received by a microphone 9 or of sound received by a mouthpiece 17. The connection between the device 7 and the sound-box may be by a short tube 4, as shown in Fig. 1, for recording on a cylinder 1, or by a tone-arm device 13, as shown in Fig. 3, for recording on a disc 11. The tone-arm is guided during recording by a slotted link 22 operated by the driving mechanism. For reproduction, the tone-arm is transferred to a separate socket 14 leading to a horn 19.
GB4519/37A 1937-02-01 1937-02-15 Improvements in sound recording apparatus Expired GB477868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT477868X 1937-02-01

Publications (1)

Publication Number Publication Date
GB477868A true GB477868A (en) 1938-01-07

Family

ID=3674874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4519/37A Expired GB477868A (en) 1937-02-01 1937-02-15 Improvements in sound recording apparatus

Country Status (1)

Country Link
GB (1) GB477868A (en)

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