GB328216A - Stylus mounting for sound reproducing machines - Google Patents

Stylus mounting for sound reproducing machines

Info

Publication number
GB328216A
GB328216A GB190929A GB190929A GB328216A GB 328216 A GB328216 A GB 328216A GB 190929 A GB190929 A GB 190929A GB 190929 A GB190929 A GB 190929A GB 328216 A GB328216 A GB 328216A
Authority
GB
United Kingdom
Prior art keywords
stylus
sound reproducing
load
reproducing machines
stylus mounting
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
GB190929A
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.)
LISSEN Ltd
Original Assignee
LISSEN 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 LISSEN Ltd filed Critical LISSEN Ltd
Priority to GB190929A priority Critical patent/GB328216A/en
Publication of GB328216A publication Critical patent/GB328216A/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)
  • Vibration Prevention Devices (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

328,216. Lissen, Ltd., and Richardson, R. P. Jan. 19, 1929. Gramophone pick-ups; magnetic instruments.- In an electrical pick-up comprising a permanent magnet 2 with sheet metal pole piece 3 and coil 4, the stylus holder 1 which forms the armature is damped by an inertia load 12 jacketed between a grooved rubber strip 11 on the stylus and rubber buffers 13 with adjustable screws 14. The stylus 1 is attached by a leaf spring 5 to a column 6 on a plate 8 pivoted at 10 to the magnet 2 to allow of its being swung away. The load 12 shares the stylus vibrations to an increasing extent as the amplitude increases but damps the motion more and more as the frequency increases. Specifications 308,698 and 308,747 are referred to.
GB190929A 1929-01-19 1929-01-19 Stylus mounting for sound reproducing machines Expired GB328216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB190929A GB328216A (en) 1929-01-19 1929-01-19 Stylus mounting for sound reproducing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190929A GB328216A (en) 1929-01-19 1929-01-19 Stylus mounting for sound reproducing machines

Publications (1)

Publication Number Publication Date
GB328216A true GB328216A (en) 1930-04-22

Family

ID=9730155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190929A Expired GB328216A (en) 1929-01-19 1929-01-19 Stylus mounting for sound reproducing machines

Country Status (1)

Country Link
GB (1) GB328216A (en)

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