GB618814A - Improvements in or relating to tone arms and supports therefor - Google Patents

Improvements in or relating to tone arms and supports therefor

Info

Publication number
GB618814A
GB618814A GB3330846A GB3330846A GB618814A GB 618814 A GB618814 A GB 618814A GB 3330846 A GB3330846 A GB 3330846A GB 3330846 A GB3330846 A GB 3330846A GB 618814 A GB618814 A GB 618814A
Authority
GB
United Kingdom
Prior art keywords
tone
relating
knife edge
track
tone arm
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
GB3330846A
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 GB3330846A priority Critical patent/GB618814A/en
Publication of GB618814A publication Critical patent/GB618814A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/02—Knife-edge bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

618,814. Gramophones. OSMAN, D. E. Nov. 8, 1946, No. 33308. Divided out of 601,435. [Class 40 (ii)] A tone arm 11 for an electrical sound reproducing or recording apparatus has a knife edge bearing 12 secured thereto which engages a complementary bearing 14 on the freely rotatable upper portion 23 of a pedestal 16 rigidly secured to the remainder of the apparatus. The knife edge bearings may comprise discontinuous aligned knife edges and the portion 23 may be mounted on roller or similar bearings. The tone arm has one or two bends in its length to ensure that the stylus carried by the tone head 10 is substantially tangential to the curve of the sound track and the angle the axis of the stylus forms with the track is approximately 60 degrees in the direction of the latter. Specification 601,435, [Group XXXIX], is referred to.
GB3330846A 1946-11-08 1946-11-08 Improvements in or relating to tone arms and supports therefor Expired GB618814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3330846A GB618814A (en) 1946-11-08 1946-11-08 Improvements in or relating to tone arms and supports therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3330846A GB618814A (en) 1946-11-08 1946-11-08 Improvements in or relating to tone arms and supports therefor

Publications (1)

Publication Number Publication Date
GB618814A true GB618814A (en) 1949-02-28

Family

ID=10351268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3330846A Expired GB618814A (en) 1946-11-08 1946-11-08 Improvements in or relating to tone arms and supports therefor

Country Status (1)

Country Link
GB (1) GB618814A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2643887A (en) * 1950-08-18 1953-06-30 United Mfg Company Phonograph tone arm
US3003772A (en) * 1957-09-19 1961-10-10 Gray Mfg Co Transducer assembly
US3051494A (en) * 1958-11-20 1962-08-28 Cosmocord Ltd Gramophone pickups
US3156472A (en) * 1963-02-27 1964-11-10 Joe F Brock Magnetic tone arm suspension
US3167317A (en) * 1959-12-15 1965-01-26 Wilson Percy Carrying arms for sound reproduction pick-ups
US3228699A (en) * 1962-03-08 1966-01-11 Zenith Radio Corp Tone arm
FR2327604A1 (en) * 1975-10-08 1977-05-06 Lahr Geraetewerk Gmbh PLAYBACK FOR TURNTABLE

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2643887A (en) * 1950-08-18 1953-06-30 United Mfg Company Phonograph tone arm
US3003772A (en) * 1957-09-19 1961-10-10 Gray Mfg Co Transducer assembly
US3051494A (en) * 1958-11-20 1962-08-28 Cosmocord Ltd Gramophone pickups
US3167317A (en) * 1959-12-15 1965-01-26 Wilson Percy Carrying arms for sound reproduction pick-ups
US3228699A (en) * 1962-03-08 1966-01-11 Zenith Radio Corp Tone arm
US3156472A (en) * 1963-02-27 1964-11-10 Joe F Brock Magnetic tone arm suspension
FR2327604A1 (en) * 1975-10-08 1977-05-06 Lahr Geraetewerk Gmbh PLAYBACK FOR TURNTABLE

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