GB624721A - Feeler mechanism for automatic gramophones - Google Patents

Feeler mechanism for automatic gramophones

Info

Publication number
GB624721A
GB624721A GB3282446A GB3282446A GB624721A GB 624721 A GB624721 A GB 624721A GB 3282446 A GB3282446 A GB 3282446A GB 3282446 A GB3282446 A GB 3282446A GB 624721 A GB624721 A GB 624721A
Authority
GB
United Kingdom
Prior art keywords
cam
record
tone
arm
levers
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
GB3282446A
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
Priority to BE477134D priority Critical patent/BE477134A/xx
Application filed by Individual filed Critical Individual
Priority to GB3282446A priority patent/GB624721A/en
Priority to FR1015425D priority patent/FR1015425A/en
Publication of GB624721A publication Critical patent/GB624721A/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
    • 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

Abstract

624,721. Automatic gramophones. HANSEN, H. C. Nov. 5, 1946. No. 32824. [Class 40 (ii)] In an automatic gramophone having means to set the stylus down at the start of a record irrespective of diameter, the vertical and horizontal movements of the tone-arm 26 are effected in a usual manner by means of a cycling cam-disc 14, the said cam-disc 14, however, being provided with cam-surfaces 16 and 72 which cause the tone-arm 26 to be moved inwardly until the stylus 76 comes into contact with the record edge before making the usual lifting, traversing and lowering movements. The tone-arm 26 is linked to the cam-roller 20 through a pin-and-slot friction connection 44, 46, on the levers 22, 40, so that when the stylus comes into contact with the record edge slipping takes place according to the diameter of the record. After this operation the tone-arm 26 is lifted by means of the cam 72 and levers 64, 54, traversed inwardly a predetermined amount by the cam 16 and levers 22, 40,and finally lowered on to the start of the record.
GB3282446A 1946-11-05 1946-11-05 Feeler mechanism for automatic gramophones Expired GB624721A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE477134D BE477134A (en) 1946-11-05
GB3282446A GB624721A (en) 1946-11-05 1946-11-05 Feeler mechanism for automatic gramophones
FR1015425D FR1015425A (en) 1946-11-05 1947-10-20 Talking magazine machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3282446A GB624721A (en) 1946-11-05 1946-11-05 Feeler mechanism for automatic gramophones

Publications (1)

Publication Number Publication Date
GB624721A true GB624721A (en) 1949-06-15

Family

ID=10344540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3282446A Expired GB624721A (en) 1946-11-05 1946-11-05 Feeler mechanism for automatic gramophones

Country Status (3)

Country Link
BE (1) BE477134A (en)
FR (1) FR1015425A (en)
GB (1) GB624721A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780466A (en) * 1950-08-18 1957-02-05 Noma Lites Inc Phonograph tone arm restoring mechanism
US2818263A (en) * 1951-02-27 1957-12-31 Webcor Inc Phonograph
DE1024728B (en) * 1954-09-21 1958-02-20 Plessey Co Ltd Manually operated device for placing the needle of a single record player for records of different diameters

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976750C (en) * 1952-10-31 1964-04-30 Elektrotechnik Steidinger & Co Control device for the use of the stylus in record changers for records of different diameters
DE973302C (en) * 1953-07-21 1960-01-14 Ludwig Fischer Fa Device for scanning records of different sizes, connected with the outward and inward movement of the tonearm

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780466A (en) * 1950-08-18 1957-02-05 Noma Lites Inc Phonograph tone arm restoring mechanism
US2818263A (en) * 1951-02-27 1957-12-31 Webcor Inc Phonograph
DE1024728B (en) * 1954-09-21 1958-02-20 Plessey Co Ltd Manually operated device for placing the needle of a single record player for records of different diameters

Also Published As

Publication number Publication date
FR1015425A (en) 1952-09-29
BE477134A (en)

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