GB307687A - Improvements in and relating to sound reproducing tools, gramophone needles and the like - Google Patents

Improvements in and relating to sound reproducing tools, gramophone needles and the like

Info

Publication number
GB307687A
GB307687A GB2270828A GB2270828A GB307687A GB 307687 A GB307687 A GB 307687A GB 2270828 A GB2270828 A GB 2270828A GB 2270828 A GB2270828 A GB 2270828A GB 307687 A GB307687 A GB 307687A
Authority
GB
United Kingdom
Prior art keywords
tool
relating
graphite
tools
sound reproducing
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
GB2270828A
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 GB2270828A priority Critical patent/GB307687A/en
Publication of GB307687A publication Critical patent/GB307687A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
    • G11B3/48—Needles

Landscapes

  • Metal Extraction Processes (AREA)

Abstract

307,687. Walton, A. L. Aug. 7, 1928. Tools for reproducing.- The tool is formed of wire encased in a softer material which stiffens it and rests on the surface of the record, and is worn away thereby as the tool point wears. Fig. 1 shows the wire tool 1 encased in graphite or graphite composition 2 held in a chuck 5 with shank 6 engaging the usual needle socket. The tool and casing may be adjustably held in a split sleeve held by a screw chuck. The graphite casing lubricates the record 3.
GB2270828A 1928-08-07 1928-08-07 Improvements in and relating to sound reproducing tools, gramophone needles and the like Expired GB307687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2270828A GB307687A (en) 1928-08-07 1928-08-07 Improvements in and relating to sound reproducing tools, gramophone needles and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2270828A GB307687A (en) 1928-08-07 1928-08-07 Improvements in and relating to sound reproducing tools, gramophone needles and the like

Publications (1)

Publication Number Publication Date
GB307687A true GB307687A (en) 1929-03-14

Family

ID=10183813

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2270828A Expired GB307687A (en) 1928-08-07 1928-08-07 Improvements in and relating to sound reproducing tools, gramophone needles and the like

Country Status (1)

Country Link
GB (1) GB307687A (en)

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