GB641798A - Improvements in or relating to electric pick-ups for sound reproducing apparatus - Google Patents

Improvements in or relating to electric pick-ups for sound reproducing apparatus

Info

Publication number
GB641798A
GB641798A GB1151047A GB1151047A GB641798A GB 641798 A GB641798 A GB 641798A GB 1151047 A GB1151047 A GB 1151047A GB 1151047 A GB1151047 A GB 1151047A GB 641798 A GB641798 A GB 641798A
Authority
GB
United Kingdom
Prior art keywords
record
ups
relating
reproducing apparatus
sound reproducing
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
GB1151047A
Inventor
Kenneth Frederick Umpleby
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.)
Decca Record Co Ltd
Original Assignee
Decca Record Co Ltd
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 Decca Record Co Ltd filed Critical Decca Record Co Ltd
Priority to GB1151047A priority Critical patent/GB641798A/en
Publication of GB641798A publication Critical patent/GB641798A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

641,798. Gramophone pick-ups. DECCA RECORD CO., Ltd. April 29,1947, No. 11510. [Class 40 (iv)] The magnet 10 of a moving coil pick-up is provided with a felt shoe 23 and is supported in sliding contact with the moving surface of a record. The moving coil and stylus unit 20 is mounted on a flat spring 21 which allows movement normal to but not parallel to the record surface. The stylus 15 and the coil 13 are mounted on a bobbin 14 which is pivoted about an axis parallel to the record grooves and to the pole faces. The trunnions 16 are secured in resilient rubber bushes 18 in a framework 20 fixed to the spring.
GB1151047A 1947-04-29 1947-04-29 Improvements in or relating to electric pick-ups for sound reproducing apparatus Expired GB641798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1151047A GB641798A (en) 1947-04-29 1947-04-29 Improvements in or relating to electric pick-ups for sound reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1151047A GB641798A (en) 1947-04-29 1947-04-29 Improvements in or relating to electric pick-ups for sound reproducing apparatus

Publications (1)

Publication Number Publication Date
GB641798A true GB641798A (en) 1950-08-23

Family

ID=9987568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1151047A Expired GB641798A (en) 1947-04-29 1947-04-29 Improvements in or relating to electric pick-ups for sound reproducing apparatus

Country Status (1)

Country Link
GB (1) GB641798A (en)

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