GB304858A - Improvements in or relating to devices for converting mechanical vibrations into electrical impulses and vice versa, particularly applicable to sound reproducing apparatus - Google Patents

Improvements in or relating to devices for converting mechanical vibrations into electrical impulses and vice versa, particularly applicable to sound reproducing apparatus

Info

Publication number
GB304858A
GB304858A GB2975927A GB2975927A GB304858A GB 304858 A GB304858 A GB 304858A GB 2975927 A GB2975927 A GB 2975927A GB 2975927 A GB2975927 A GB 2975927A GB 304858 A GB304858 A GB 304858A
Authority
GB
United Kingdom
Prior art keywords
armature
stylus
blank
relating
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
GB2975927A
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.)
DONOVAN WILLIAM SAYER
ELECTRAMONIC Co Ltd
Original Assignee
DONOVAN WILLIAM SAYER
ELECTRAMONIC 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 DONOVAN WILLIAM SAYER, ELECTRAMONIC Co Ltd filed Critical DONOVAN WILLIAM SAYER
Priority to GB2975927A priority Critical patent/GB304858A/en
Publication of GB304858A publication Critical patent/GB304858A/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)
  • Moving Of Heads (AREA)

Abstract

304,858. Sayer, D. W., and Electramonic Co., Ltd. Nov. 7, 1927. Feed-mechanism.-An electrical device for reproducing recorded sound or like vibrations or an electric recording device having a stylus acting on a guiding groove on a blank, is fed across the record or blank by means of an auxiliary stylus engaging in the groove in which the reproducing or recording stylus acts. In the construction shown, a permanent magnet 1, with windings 2, has an armature 6 mounted between the poles 3, the armature being supported at its upper end by opposed springs 7 which are adjustable by means of a grub screw 9. A frame 4 mounted on the magnet is provided with a socket 5 for a needle or sapphire, which engages the same groove as a needle carried by the armature in a socket 13, and serves to feed the whole device across the record or blank, and to relieve the load on the reproducing or recording stylus. The armature and pole-pieces are of V cross-section, and damping material such as tissue paper or rubber is packed between the armature and the pole-pieces.
GB2975927A 1927-11-07 1927-11-07 Improvements in or relating to devices for converting mechanical vibrations into electrical impulses and vice versa, particularly applicable to sound reproducing apparatus Expired GB304858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2975927A GB304858A (en) 1927-11-07 1927-11-07 Improvements in or relating to devices for converting mechanical vibrations into electrical impulses and vice versa, particularly applicable to sound reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2975927A GB304858A (en) 1927-11-07 1927-11-07 Improvements in or relating to devices for converting mechanical vibrations into electrical impulses and vice versa, particularly applicable to sound reproducing apparatus

Publications (1)

Publication Number Publication Date
GB304858A true GB304858A (en) 1929-01-31

Family

ID=10296716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2975927A Expired GB304858A (en) 1927-11-07 1927-11-07 Improvements in or relating to devices for converting mechanical vibrations into electrical impulses and vice versa, particularly applicable to sound reproducing apparatus

Country Status (1)

Country Link
GB (1) GB304858A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE905678C (en) * 1937-03-26 1954-03-04 Siemens Ag Protective device for sound pens on pickups

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE905678C (en) * 1937-03-26 1954-03-04 Siemens Ag Protective device for sound pens on pickups

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