GB323779A - Improvements in talking machines - Google Patents

Improvements in talking machines

Info

Publication number
GB323779A
GB323779A GB2914228A GB2914228A GB323779A GB 323779 A GB323779 A GB 323779A GB 2914228 A GB2914228 A GB 2914228A GB 2914228 A GB2914228 A GB 2914228A GB 323779 A GB323779 A GB 323779A
Authority
GB
United Kingdom
Prior art keywords
tone
records
arm
sound
holder
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
GB2914228A
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 GB2914228A priority Critical patent/GB323779A/en
Publication of GB323779A publication Critical patent/GB323779A/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
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/02—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using cylindrical record carriers

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Toys (AREA)

Abstract

323,779. Cooper, W. F. Oct. 10, 1928. Mandrels; tone-arm jonts; cylindrical and like records; sound-boxes and tone-arms, balancing.- Conical records 7, such as those described in Specifications 316,595 and 316, 596, or cylindrical records. are mounted on a holder 4 which rotates about a vertical or approximately vertical axis, and a horn 3 is disposed below said holder. In the machine shown, the tone-arm 10 is jointed by oblique plane surfaces 11 to the connector 12 which leads to the horn, and the tone-arm and sound-box are counterbalanced by an adjustableweight 13. The sound-box diaphragm is substantially horizontal and the oblique joint 11 enables the needle to follow the slope of the record. A light spring (not shown) tends to rock the sound-box about the axis of the tone-arm, to hold the needle in the groove. The connector 12 is adjustably mounted on the motor-board 2 by guides 17 and a screw 16 which provide for swing- ing the tone-arm in a horizontal plane when changing the records. The records are connected to the holder 4 by arms 6, Fig. 4, one of which may be controlled by a spring 8. Specification 18993/98 also is referred to.
GB2914228A 1928-10-10 1928-10-10 Improvements in talking machines Expired GB323779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2914228A GB323779A (en) 1928-10-10 1928-10-10 Improvements in talking machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2914228A GB323779A (en) 1928-10-10 1928-10-10 Improvements in talking machines

Publications (1)

Publication Number Publication Date
GB323779A true GB323779A (en) 1930-01-10

Family

ID=10286807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2914228A Expired GB323779A (en) 1928-10-10 1928-10-10 Improvements in talking machines

Country Status (1)

Country Link
GB (1) GB323779A (en)

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