GB948758A - Improvements in or relating to phonographs - Google Patents

Improvements in or relating to phonographs

Info

Publication number
GB948758A
GB948758A GB452459A GB452459A GB948758A GB 948758 A GB948758 A GB 948758A GB 452459 A GB452459 A GB 452459A GB 452459 A GB452459 A GB 452459A GB 948758 A GB948758 A GB 948758A
Authority
GB
United Kingdom
Prior art keywords
pick
lever
arm
roller
record
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
GB452459A
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 GB452459A priority Critical patent/GB948758A/en
Priority to CH136660A priority patent/CH395571A/en
Priority to DEH38609A priority patent/DE1182869B/en
Publication of GB948758A publication Critical patent/GB948758A/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
    • G11B3/08535—Driving the head
    • G11B3/08538—Driving the head the head being driven by the same means as the record can
    • G11B3/08541—Driving the head the head being driven by the same means as the record can for pivoting pick-up arms
    • G11B3/08545—Driving the head the head being driven by the same means as the record can for pivoting pick-up arms driven by cams
    • 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

Landscapes

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

Abstract

948,758. Automatic gramophones. H. C. HANSEN. Feb. 9,1960 [ Feb. 9, 1959], No. 4524/59. Heading G5R. A pick-up arm 10 swings azimuthally with an arm 18 carrying an arcuate cam-surface 28, the arm being depressed by manual means (not shown) or automatic means to lift the stylus from the record via the lost-motion linkage 18, 24, 22,12. Striker means 42, rotating with the turntable are enabled to contact a lever 40 by the action of means 46 rocking the arm 39 at the end of play, whereupon:- (a) the bent-over end 41 of the lever 40 engages an abutment 35 on a shaft 30 and drives it to the right. (b) a roller 34 engages a face-cam track 37 and the shaft 30 is both rocked and rotated. (c) pressure of a roller 32 on the surface 28 raises the pick-up and the rotation of the roller winds the pick-up arm back outwardly. (d) the roller runs off the end of the track 39<SP>1</SP> with the aid of the portion 41<SP>1</SP> acting on the shaft 30, lowering the pick-up on to a side-rest (not shown) incorporating motor cut-out means. In the modified arrangement, Fig. 4, a lever 70, actuated by hand-operated means 80 may be swung anti-clockwise about its pivot 72, whereupon the edge 71 actuates a ramp 78 on a bladespring 74 secured to the deck (not shown) to raise the pick-up allowing it to be adjusted by hand to a point intermediate the full traverse of a record or to the edge of a record of non- regular diameter. Regular diameters may be indicated by the unreferenced knife on the blade 74 and grooves on the member 26; on return of the hand means 80 to its neutral position, the ramp 78 allows the pick-up to be lowered slowly. When the lever 70 is swung clockwise, an abutment 88 engages the lever 38 to engage the members 40 and 42 as above, to reject a record before its playing is complete. The parts rotating with the turntable may form part of a complete autochanger mechanism as described in Specification 801,176 and the turntable drive means may be as detailed in Specification 757,378.
GB452459A 1959-02-09 1959-02-09 Improvements in or relating to phonographs Expired GB948758A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB452459A GB948758A (en) 1959-02-09 1959-02-09 Improvements in or relating to phonographs
CH136660A CH395571A (en) 1959-02-09 1960-02-08 Control device for the automatic placement of the tonearm on a record player
DEH38609A DE1182869B (en) 1959-02-09 1960-02-09 Control device for the automatic placement of the tonearm on a turntable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB452459A GB948758A (en) 1959-02-09 1959-02-09 Improvements in or relating to phonographs

Publications (1)

Publication Number Publication Date
GB948758A true GB948758A (en) 1964-02-05

Family

ID=9778816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB452459A Expired GB948758A (en) 1959-02-09 1959-02-09 Improvements in or relating to phonographs

Country Status (3)

Country Link
CH (1) CH395571A (en)
DE (1) DE1182869B (en)
GB (1) GB948758A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502018A1 (en) * 1981-03-20 1982-09-24 Philips Ind Commerciale RETURN ARRAY RETURN ARM

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1074622A (en) * 1951-11-08 1954-10-07 Philips Nv Sound reproduction device with discs allowing automatic change of these discs
BE539113A (en) * 1954-06-18
DE1097161B (en) * 1956-07-25 1961-01-12 Walter Urban Record player
FR1166178A (en) * 1957-01-31 1958-11-04 Automatic disc changer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502018A1 (en) * 1981-03-20 1982-09-24 Philips Ind Commerciale RETURN ARRAY RETURN ARM
EP0061221A1 (en) * 1981-03-20 1982-09-29 S.A. Philips Industrielle Et Commerciale Record player with spring powered arm return

Also Published As

Publication number Publication date
CH395571A (en) 1965-07-15
DE1182869B (en) 1964-12-03

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