GB856997A - Improvements in or relating to gramophone pickups - Google Patents

Improvements in or relating to gramophone pickups

Info

Publication number
GB856997A
GB856997A GB3231658A GB3231658A GB856997A GB 856997 A GB856997 A GB 856997A GB 3231658 A GB3231658 A GB 3231658A GB 3231658 A GB3231658 A GB 3231658A GB 856997 A GB856997 A GB 856997A
Authority
GB
United Kingdom
Prior art keywords
armature
pick
strip
fixed support
stylus
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
GB3231658A
Inventor
Arthur Charles Haddy
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
Priority to NL244111D priority Critical patent/NL244111A/xx
Application filed by Decca Record Co Ltd filed Critical Decca Record Co Ltd
Priority to GB3231658A priority patent/GB856997A/en
Priority to DED31532A priority patent/DE1096626B/en
Priority to BE583019A priority patent/BE583019A/en
Priority to FR806382A priority patent/FR1238024A/en
Priority to CH7912959A priority patent/CH375539A/en
Publication of GB856997A publication Critical patent/GB856997A/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
    • H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
    • 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)
  • Springs (AREA)
  • Ropes Or Cables (AREA)

Abstract

856,997. Stylus arms and mountings. DECCA RECORD CO. Ltd. Aug. 25, 1959 [Oct. 9, 1958], No. 32316/58. Class 40 (2). [Also in Group XXXIX] In a gramophone pick-up having an elongated armature 10 carrying a stylus 15 at one end and supported at its other end by a metal strip 11, a non-metallic flexible restraining- member 18 under tension, e.g. of polyester or polyamide fibre, extends from the free end of the armature to a fixed support on the pick-up body. The armature is of mild steel and is fed by a magnetic circuit (not shown). It is surrounded by a coil assembly 16. The armature may execute linear movements along its longitudinal axis and torsional movements about the axis of the strip 11. The restraining member is secured at each end by gluing or tying or, at the fixed support, by clamping. It may be a single filament but is preferably a multi-strand yarn. A block 21 of resilient material damps the transverse resonance of the restraining member 18. The strip 11 has longitudinal stiffening- ridges 14. A stop 20, e.g. of methyl methacrylate, limits the travel of the armature 10. The pick-up may be for monaural or stereophonic reproduction, although no stereophonic embodiment is described.
GB3231658A 1958-10-09 1958-10-09 Improvements in or relating to gramophone pickups Expired GB856997A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL244111D NL244111A (en) 1958-10-09
GB3231658A GB856997A (en) 1958-10-09 1958-10-09 Improvements in or relating to gramophone pickups
DED31532A DE1096626B (en) 1958-10-09 1959-09-22 Magnetic pickup
BE583019A BE583019A (en) 1958-10-09 1959-09-25 Improvements to phonograph pick-ups
FR806382A FR1238024A (en) 1958-10-09 1959-09-30 Improvements to the reading heads of electrophones
CH7912959A CH375539A (en) 1958-10-09 1959-10-06 Gramophone pickup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3231658A GB856997A (en) 1958-10-09 1958-10-09 Improvements in or relating to gramophone pickups

Publications (1)

Publication Number Publication Date
GB856997A true GB856997A (en) 1960-12-21

Family

ID=10336715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3231658A Expired GB856997A (en) 1958-10-09 1958-10-09 Improvements in or relating to gramophone pickups

Country Status (6)

Country Link
BE (1) BE583019A (en)
CH (1) CH375539A (en)
DE (1) DE1096626B (en)
FR (1) FR1238024A (en)
GB (1) GB856997A (en)
NL (1) NL244111A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU957259A2 (en) * 1978-12-26 1982-09-07 За витель Electrodynamic sound pickup head

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99355C (en) * 1956-03-16

Also Published As

Publication number Publication date
FR1238024A (en) 1960-11-28
CH375539A (en) 1964-02-29
NL244111A (en)
DE1096626B (en) 1961-01-05
BE583019A (en) 1960-01-18

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