GB757303A - Improvements relating to phonograph record changing apparatus - Google Patents
Improvements relating to phonograph record changing apparatusInfo
- Publication number
- GB757303A GB757303A GB21331/51A GB2133151A GB757303A GB 757303 A GB757303 A GB 757303A GB 21331/51 A GB21331/51 A GB 21331/51A GB 2133151 A GB2133151 A GB 2133151A GB 757303 A GB757303 A GB 757303A
- Authority
- GB
- United Kingdom
- Prior art keywords
- record
- arm
- movement
- edge
- cam
- 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
- 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
- G11B17/12—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis
- G11B17/16—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis by mechanism in stationary centre post, e.g. with stepped post, using fingers on post
- G11B17/162—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis by mechanism in stationary centre post, e.g. with stepped post, using fingers on post with means for detecting the diameter of the record
- G11B17/165—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis by mechanism in stationary centre post, e.g. with stepped post, using fingers on post with means for detecting the diameter of the record with mechanical detecting means
Landscapes
- Automatic Disk Changers (AREA)
- Knitting Machines (AREA)
- De-Stacking Of Articles (AREA)
Abstract
757,303. Automatic gramophones. HANSEN, H. C. Sept. 10, 1951 [May 12, 1951], No. 21331/51. Class 40(2) In an automatic gramophone for playing records of mixed sizes, a record-size feeler moves in a path in engagement with the surface of the next record to be supplied to the playing position, and is adapted to be subjected to resistance against its movement in such portion of its travel path that lies in the orbit of the edge of the particular size record with which the feeler is in contact. The automatic gramophone described is substantially the same as that described in Specification 757,379 but differs in the respect that the pick-up arm 112 is provided with a low-friction roller 400 having a surface rising above that of a high-friction member 403. During an outward movement of the arm 112 under the control of a cam-disc 144, the arm 112 moves outwardly without resistance until the roller 400 leaves the edge of the lowermost record of the stack. Should the said lowermost record be of one of the two smaller sizes, the movement of the arm 112 is arrested, so that the cam-follower 252 pushes aside spring 284 1 or 284 2 at the entrance of the cam track appropriate to the size of record detected. At this stage the arm 112 is moved outwardly a small amount, so that the high-friction member 403 passes beyond the edge of the record, whereupon an inward movement which follows unseats the record from the centre post.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US333572XA | 1951-05-12 | 1951-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB757303A true GB757303A (en) | 1956-09-19 |
Family
ID=21869941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21331/51A Expired GB757303A (en) | 1951-05-12 | 1951-09-10 | Improvements relating to phonograph record changing apparatus |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH333572A (en) |
DE (2) | DE1192840B (en) |
FR (1) | FR1060075A (en) |
GB (1) | GB757303A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3014728A (en) * | 1959-05-04 | 1961-12-26 | Collaro Ltd | Automatic record-changers |
US3046020A (en) * | 1957-12-13 | 1962-07-24 | Vm Corp | Control mechanism for phonographs |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2900192A (en) * | 1953-07-10 | 1959-08-18 | Herman H Mueller | Tone arm control for the fully automatic or manually controlled playing of intermixed records |
US2969239A (en) * | 1955-05-23 | 1961-01-24 | Philco Corp | Phonograph apparatus |
DE1086060B (en) * | 1955-08-08 | 1960-07-28 | Hans Christian Hansen | Record changer with filling device |
DE1108455B (en) * | 1955-12-22 | 1961-06-08 | Luxor Industri Ab | Device for controlling the automatic needle insert movement in speaking machines for records of different diameters |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE582654C (en) * | 1931-09-17 | 1933-08-19 | Aeg | Recording or speaking machine with magazine and automatic plate change |
US2334649A (en) * | 1941-05-10 | 1943-11-16 | Willard B Kapper | Phonograph |
CH237035A (en) * | 1941-06-25 | 1945-03-31 | Luxor Industrieaktiebolaget | Device for adjusting the tonearm on speaking machines with automatic plate change. |
FR901525A (en) * | 1943-01-27 | 1945-07-30 | Philips Nv | Improvements in phonographic record reproduction apparatus |
CH238176A (en) * | 1943-12-02 | 1945-06-30 | Thorens Hermann Sa | Device for placing a disc player. |
-
1951
- 1951-09-10 GB GB21331/51A patent/GB757303A/en not_active Expired
-
1952
- 1952-05-09 DE DEH37223A patent/DE1192840B/en active Pending
- 1952-05-09 DE DEH12478A patent/DE1080315B/en active Pending
- 1952-05-10 FR FR1060075D patent/FR1060075A/en not_active Expired
- 1952-05-10 CH CH333572D patent/CH333572A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3046020A (en) * | 1957-12-13 | 1962-07-24 | Vm Corp | Control mechanism for phonographs |
US3014728A (en) * | 1959-05-04 | 1961-12-26 | Collaro Ltd | Automatic record-changers |
Also Published As
Publication number | Publication date |
---|---|
DE1192840B (en) | 1965-05-13 |
FR1060075A (en) | 1954-03-30 |
DE1080315B (en) | 1960-04-21 |
CH333572A (en) | 1958-10-31 |
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