GB307971A - Improvements in and connected with apparatus for recording and reproducing sound - Google Patents

Improvements in and connected with apparatus for recording and reproducing sound

Info

Publication number
GB307971A
GB307971A GB3412127A GB3412127A GB307971A GB 307971 A GB307971 A GB 307971A GB 3412127 A GB3412127 A GB 3412127A GB 3412127 A GB3412127 A GB 3412127A GB 307971 A GB307971 A GB 307971A
Authority
GB
United Kingdom
Prior art keywords
needle
socket
arm
recording
support
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
GB3412127A
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 GB3412127A priority Critical patent/GB307971A/en
Publication of GB307971A publication Critical patent/GB307971A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Impact Printers (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

307,971. Barrett, A. E. Dec. 16, 1927. Pick-ups, supporting.-A gramophone pick-up is provided with a socket 16 for attachment to an arm 9 which is pivoted to a support and counterbalanced by a spring. The leads pass through the arm. The needle 4 constitutes the armature and is secured in its socket 13 by a set-screw so inclined that its heavy head extends into the transverse plane through the flexing point of the needle aramature. The needle is flattened between its support and the pole-pieces, and the needle socket may be of polygonal form to ensure that the flattened part is correctly positioned.
GB3412127A 1927-12-16 1927-12-16 Improvements in and connected with apparatus for recording and reproducing sound Expired GB307971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3412127A GB307971A (en) 1927-12-16 1927-12-16 Improvements in and connected with apparatus for recording and reproducing sound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3412127A GB307971A (en) 1927-12-16 1927-12-16 Improvements in and connected with apparatus for recording and reproducing sound

Publications (1)

Publication Number Publication Date
GB307971A true GB307971A (en) 1929-03-18

Family

ID=10361623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3412127A Expired GB307971A (en) 1927-12-16 1927-12-16 Improvements in and connected with apparatus for recording and reproducing sound

Country Status (1)

Country Link
GB (1) GB307971A (en)

Similar Documents

Publication Publication Date Title
GB307971A (en) Improvements in and connected with apparatus for recording and reproducing sound
GB334551A (en) Improvements relating to electro-magnetic gramophone pick-ups or recorders
US2019000A (en) Phonograph pickup
GB531740A (en) Improvements in pick-ups for sound reproduction
GB276708A (en) Improvements in sound recorders and reproducers
GB321967A (en) Improvements in gramophones and like sound reproducing apparatus
GB370352A (en) Improvements in or relating to apparatus for the recording or reproduction of sound
GB352242A (en) Improvements in supporting arms for electrical pick-up devices
GB399081A (en) Device for recording sound on gramophone discs
GB498360A (en) Improvements in or relating to sound reproducing apparatus
GB234350A (en) Device for gramophones and the like for producing dancing movements of figures
GB276971A (en) Improvements in and connected with the sound boxes of talking machines
GB370418A (en) Improvements relating to sound recording apparatus
GB313713A (en) Improvements in gramophones and like sound reproducing machines
GB318254A (en) Improvements in and relating to apparatus for use in the reproduction of sound
GB320868A (en) Improvements in sound reproducing machines
GB266933A (en) Improvements in and relating to the sound boxes of gramophones and like sound reproducing instruments
GB303986A (en) Improvements in or relating to electro-magnetic gramophone reproducers
GB671803A (en) Improvements in and relating to tone arms
GB228400A (en) Improved sound box for sound recording and sound reproducing apparatus
GB245212A (en) Improvements in sound-recording and sound-reproducing apparatus
GB395637A (en) Improvements in or relating to apparatus for reproducing sound from sound records
GB296207A (en) Improvements in electro-magnetic sound reproducing and recording devices
GB617883A (en) Improvements in or relating to apparatus for playing gramophone records
GB320747A (en) Improvements relating to gramophone tone arms