GB685335A - Improvements in and relating to phonograph stylus supports - Google Patents

Improvements in and relating to phonograph stylus supports

Info

Publication number
GB685335A
GB685335A GB26020/50A GB2602050A GB685335A GB 685335 A GB685335 A GB 685335A GB 26020/50 A GB26020/50 A GB 26020/50A GB 2602050 A GB2602050 A GB 2602050A GB 685335 A GB685335 A GB 685335A
Authority
GB
United Kingdom
Prior art keywords
arm
stylus
oct
relating
infinite number
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
GB26020/50A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB685335A publication Critical patent/GB685335A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/16—Mounting or connecting stylus to transducer with or without damping means

Landscapes

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

Abstract

685,335. Stylus arms and mountings. BRITISH THOMSON-HOUSTON CO.. Ltd. Oct. 25, 1950 [Oct. 29, 1949], No. 26020/50. Class 40 (ii) [Also in Group XXXIX] In a gramophone pick-up, a stylus arm 1, acting as a vibratory armature between magnetic pole-pieces 5, is in the form of a cantilever of flat-sectioned material twisted in the form of a gradual spiral for the purpose of avoiding a major resonance, or resonances, dependent on mass and length of the stylus arm. The arm is thus considered to consist of an infinite number of masses of different magnitude vibrating in different planes about an infinite number of axes A, B, C, &c. Specification 685,293, [Group XXXIX], is referred to.
GB26020/50A 1949-10-29 1950-10-25 Improvements in and relating to phonograph stylus supports Expired GB685335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US685335XA 1949-10-29 1949-10-29

Publications (1)

Publication Number Publication Date
GB685335A true GB685335A (en) 1952-12-31

Family

ID=22083171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26020/50A Expired GB685335A (en) 1949-10-29 1950-10-25 Improvements in and relating to phonograph stylus supports

Country Status (1)

Country Link
GB (1) GB685335A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961244A (en) * 1955-11-14 1960-11-22 Gen Electric Pickup stylus assembly
US3988025A (en) * 1975-02-13 1976-10-26 Fumitaka Nagamura Record disc cutting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961244A (en) * 1955-11-14 1960-11-22 Gen Electric Pickup stylus assembly
US3988025A (en) * 1975-02-13 1976-10-26 Fumitaka Nagamura Record disc cutting apparatus

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