GB624721A - Feeler mechanism for automatic gramophones - Google Patents
Feeler mechanism for automatic gramophonesInfo
- 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
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
Landscapes
- Toys (AREA)
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.
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)
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)
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 |
-
0
- BE BE477134D patent/BE477134A/xx unknown
-
1946
- 1946-11-05 GB GB3282446A patent/GB624721A/en not_active Expired
-
1947
- 1947-10-20 FR FR1015425D patent/FR1015425A/en not_active Expired
Cited By (3)
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 |
---|---|
BE477134A (en) | |
FR1015425A (en) | 1952-09-29 |
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