GB1007277A - Improvements in and relating to disc gramophone record players - Google Patents

Improvements in and relating to disc gramophone record players

Info

Publication number
GB1007277A
GB1007277A GB1376462A GB1376462A GB1007277A GB 1007277 A GB1007277 A GB 1007277A GB 1376462 A GB1376462 A GB 1376462A GB 1376462 A GB1376462 A GB 1376462A GB 1007277 A GB1007277 A GB 1007277A
Authority
GB
United Kingdom
Prior art keywords
disc
record
pin
levers
centre
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
GB1376462A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1007277A publication Critical patent/GB1007277A/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
    • G11B3/60—Turntables for record carriers

Landscapes

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

Abstract

1,007,277. Single record players; automatic speed selection. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 10, 1962 [April 13, 1961], No. 13764/62. Heading G5R. [Also in Division F2] A disc-record gramophone change-speed gear in which the speed selected is related to the centre-hole size of the record comprises a member 1 of a diameter corresponding to a largehole 45 r.p.m. disc and a centre-pin 4a of a diameter corresponding to a small-hole 33<SP>1</SP>/3 r.p.m. disc, the member 1 being depressible by the weight of any small-holed disc placed about the pin 4a against the action of a spring 3, such that a circular abutment ring 2 is placed selectively to obstruct the path of either one of two identical levers 6, 7. The usual outward movement of the pick-up 13 to start the drive causes a lever 11 to be moved into a latched position, Fig. 2, whereupon a pin 11a acting in heart-shaped slots in the levers and previously holding both levers 6, 7 and their idlers 8, 9 in inoperative positions, allows one, 7 to swing under the action of a spring 19 but holds the other, 6, meantime inhibited in movement by the abutment 2 by engaging the cusp 6a. The idler 9 then transmits a 45 r.p.m. drive to the turntable rim from the larger of two steps 17 on the motor shaft. When a small-hole record lowers the abutment 2 (Fig. 3, not shown), the lever 6 engages the idler 8 with the smaller of the steps 17. Three ribs 1a are arranged to enter the clearances provided in certain breakout-centre type 45 r.p.m. records.
GB1376462A 1961-04-13 1962-04-10 Improvements in and relating to disc gramophone record players Expired GB1007277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR853653 1961-04-13

Publications (1)

Publication Number Publication Date
GB1007277A true GB1007277A (en) 1965-10-13

Family

ID=8749504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1376462A Expired GB1007277A (en) 1961-04-13 1962-04-10 Improvements in and relating to disc gramophone record players

Country Status (1)

Country Link
GB (1) GB1007277A (en)

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