GB886493A - Improvements in or relating to gramophone record playing apparatus - Google Patents

Improvements in or relating to gramophone record playing apparatus

Info

Publication number
GB886493A
GB886493A GB12301/58A GB1230158A GB886493A GB 886493 A GB886493 A GB 886493A GB 12301/58 A GB12301/58 A GB 12301/58A GB 1230158 A GB1230158 A GB 1230158A GB 886493 A GB886493 A GB 886493A
Authority
GB
United Kingdom
Prior art keywords
record
pick
pad
roller
stylus
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
GB12301/58A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB886493A publication Critical patent/GB886493A/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
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
    • G11B3/08503—Control of drive of the head
    • G11B3/08506—Control of drive of the head for pivoting pick-up arms
    • G11B3/08509—Control of drive of the head for pivoting pick-up arms using mechanical detecting means
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
    • G11B3/08503—Control of drive of the head
    • G11B3/08506—Control of drive of the head for pivoting pick-up arms
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/38—Guiding, e.g. constructions or arrangements providing linear or other special tracking characteristics

Landscapes

  • Feeding And Guiding Record Carriers (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

886,493. Gramophone pick-ups; supporting. TELEFUNKEN G.m.b.H. April 18, 1958 [April 20, 1957], No. 12301/58. Class 40 (2). A diameter-gauging pick-up in which a roller 12 contacts the record so as to support the stylus 6 clear of it and lowers a pad 20 into contact with the record when the roller overruns the edge of the record, has a cam and linkage means 7a, 16 connected to delay means forming part of a record-changing mechanism which prevents an arm 13 carrying the roller and pad from retracting. As a result, the final lowering of the stylus into the record run-in groove is governed by the cam 7a rather than by the friction of the pad 20 on the record and snatch is eliminated. The upper end of the cambar 7 may engage an abutment 11 to lift the pick-up for record changing and the weight of the pick-up during playing is partly counterbalanced by a horizontal spring.
GB12301/58A 1957-04-20 1958-04-18 Improvements in or relating to gramophone record playing apparatus Expired GB886493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET13507A DE1099757B (en) 1957-04-20 1957-04-20 Automatic record player with means for scanning the record diameter

Publications (1)

Publication Number Publication Date
GB886493A true GB886493A (en) 1962-01-10

Family

ID=7547357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12301/58A Expired GB886493A (en) 1957-04-20 1958-04-18 Improvements in or relating to gramophone record playing apparatus

Country Status (2)

Country Link
DE (1) DE1099757B (en)
GB (1) GB886493A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504596A (en) * 1944-04-11 1950-04-18 Colonial Radio Corp Tone arm restoring mechanism for different sized records

Also Published As

Publication number Publication date
DE1099757B (en) 1961-02-16

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