GB643773A - Playback mechanism for talking machines - Google Patents
Playback mechanism for talking machinesInfo
- Publication number
- GB643773A GB643773A GB4495/48A GB449548A GB643773A GB 643773 A GB643773 A GB 643773A GB 4495/48 A GB4495/48 A GB 4495/48A GB 449548 A GB449548 A GB 449548A GB 643773 A GB643773 A GB 643773A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- counterweight
- record
- pick
- pivoted
- 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
Landscapes
- Toys (AREA)
Abstract
643,773. Supporting gramophone pick-ups. MADER, D. Feb. 16, 1948, Nos. 4495, 4496 and 4497. Convention dates, May 14, 1947, Dec. 11, 1947, and Jan. 26, 1948. [Class 40 (ii)] A gramophone pick-up is movable vertically from the normal face of one record to play the underside of a record rotated above the pickup by means of a movable counterweight. This counterweight 10, Fig. 1, pivoted at 8 about the same pivot as the pick-up arm, rests on a crossbar 12 so as to lift the arm for playing the upper record 14. When the rod 13 is raised by the changer mechanism, the counterweight is lifted, and the arm, relieved of the counterweight, descends by its own weight on to the lower record. In two modifications, Figs. 3 and 4, (not shown), the counterweight is located below the motor board and acts on the rear end of the pick-up arm through levers. In a further modification, Fig. 5 (not shown) the counterweight is pivoted and fits over the rear end of the arm and is lifted, when required, by a vertical rod passing up through a hole in the top of the arm. In a still further modification, Fig. 8, the counterweight 10b acts forwardly of the pivot 8 so as to hold the arm onto the lower record, the arm being so weighted that on raising the counterweight by moving rod 53 downwards, the arm rises to play the upper record.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH643773X | 1947-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB643773A true GB643773A (en) | 1950-09-27 |
Family
ID=4525613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4495/48A Expired GB643773A (en) | 1947-05-14 | 1948-02-16 | Playback mechanism for talking machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB643773A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2809841A (en) * | 1952-07-01 | 1957-10-15 | Herman H Mueller | Tone arm balancing means for automatic interlocking dual phonograph record player |
US2860880A (en) * | 1952-07-01 | 1958-11-18 | Herman H Mueller | Tone arm vertical compensating mechanism for automatic interlocking dual phonograph record players |
-
1948
- 1948-02-16 GB GB4495/48A patent/GB643773A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2809841A (en) * | 1952-07-01 | 1957-10-15 | Herman H Mueller | Tone arm balancing means for automatic interlocking dual phonograph record player |
US2860880A (en) * | 1952-07-01 | 1958-11-18 | Herman H Mueller | Tone arm vertical compensating mechanism for automatic interlocking dual phonograph record players |
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