GB556589A - Improvements relating to automatic phonographs - Google Patents

Improvements relating to automatic phonographs

Info

Publication number
GB556589A
GB556589A GB9076/41A GB907641A GB556589A GB 556589 A GB556589 A GB 556589A GB 9076/41 A GB9076/41 A GB 9076/41A GB 907641 A GB907641 A GB 907641A GB 556589 A GB556589 A GB 556589A
Authority
GB
United Kingdom
Prior art keywords
pick
assembly
needle
phonographs
july
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
GB9076/41A
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
Publication of GB556589A publication Critical patent/GB556589A/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/08—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records
    • G11B17/20—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with transfer away from stack on turntable after playing

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

556,589. Automatic phonographs. ANDREWS, E. F. July 17, 1941, No. 9076. Convention date, July 18, 1940. [Class 40 (ii)] In magazine phonographs in which disc records are clamped in the centre and rotated in opposite directions for playing the two exposed sides, the pick-up assembly has two oppositely directed needle points 222a, 222b and is carried bv an arm 221 so mounted that the pick-up assembly can be moved parallel to the axis of rotation of the record disc 224 from one side to the other to bring one needle point in action against one side or the other needle point in action against the other side of the record. The pick-up assembly may comprise a single pick-up 221<SP>1</SP> with a double pointed needle as in Fig. 4, or two adjacent pick-ups 221<SP>1</SP> as in Fig. 35. The machine described in detail is otherwise similar to the machine described in Specification 526,803.
GB9076/41A 1940-07-18 1941-07-17 Improvements relating to automatic phonographs Expired GB556589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US556589XA 1940-07-18 1940-07-18

Publications (1)

Publication Number Publication Date
GB556589A true GB556589A (en) 1943-10-14

Family

ID=21999333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9076/41A Expired GB556589A (en) 1940-07-18 1941-07-17 Improvements relating to automatic phonographs

Country Status (1)

Country Link
GB (1) GB556589A (en)

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