GB901190A - Improvements in or relating to the manufacture of gramophone styli and the like - Google Patents

Improvements in or relating to the manufacture of gramophone styli and the like

Info

Publication number
GB901190A
GB901190A GB3531057A GB3531057A GB901190A GB 901190 A GB901190 A GB 901190A GB 3531057 A GB3531057 A GB 3531057A GB 3531057 A GB3531057 A GB 3531057A GB 901190 A GB901190 A GB 901190A
Authority
GB
United Kingdom
Prior art keywords
gramophone
styli
stylus
relating
manufacture
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
GB3531057A
Inventor
Herbert Edward Holman
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB3531057A priority Critical patent/GB901190A/en
Publication of GB901190A publication Critical patent/GB901190A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/16—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli
    • B24B19/165—Phonograph needles and the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
    • B24B31/104—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work involving a rotating bowl, in which a ring zone of abrasive powder is formed by centrifugal force

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

901,190. Shaping gramophone styli. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 4, 1958 [Nov. 13, 1957; May 17, 1958], Nos. 35310/57 and 15902/58. Class 40 (2). [Also in Group XXIII] The tip of a gramophone stylus is shaped to a sharp point or any of the forms shown in Figs. 2, 3 and 4 by rotating the stylus while causing a stream of abrasive particles to impinge on the tip (see Group XXIII). The stylus may be made from diamond, sapphire or other material.
GB3531057A 1957-11-13 1957-11-13 Improvements in or relating to the manufacture of gramophone styli and the like Expired GB901190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3531057A GB901190A (en) 1957-11-13 1957-11-13 Improvements in or relating to the manufacture of gramophone styli and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3531057A GB901190A (en) 1957-11-13 1957-11-13 Improvements in or relating to the manufacture of gramophone styli and the like

Publications (1)

Publication Number Publication Date
GB901190A true GB901190A (en) 1962-07-18

Family

ID=10376269

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3531057A Expired GB901190A (en) 1957-11-13 1957-11-13 Improvements in or relating to the manufacture of gramophone styli and the like

Country Status (1)

Country Link
GB (1) GB901190A (en)

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