GB877806A - Improvements in or relating to devices for record players - Google Patents
Improvements in or relating to devices for record playersInfo
- Publication number
- GB877806A GB877806A GB7400/60A GB740060A GB877806A GB 877806 A GB877806 A GB 877806A GB 7400/60 A GB7400/60 A GB 7400/60A GB 740060 A GB740060 A GB 740060A GB 877806 A GB877806 A GB 877806A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- switch
- pick
- control member
- rod
- 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
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/14—Control of operating function, e.g. switching from recording to reproducing by sensing movement or position of head, e.g. means moving in correspondence with head movements
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Toys (AREA)
Abstract
877,806. Snap-action switches. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 2, 1960 [March 5, 1959], No. 7400/60. Class 38 (5). [Also in Group XXXVIII] In a record player an on/off switch is operated by vertical movement of the pick-up arm which produces vertical movement of a switch control member releasably held by the pick-up arm so that said arm can raise the control member when the arm is lifted from its rest position, the said arm having sufficient weight to force the control member into its lower position. In the embodiment described, the control member and releasable means comprise a rod 4 of permanent magnetic material and a ferromagnetic plate 19. In an automatic gramophone, the switch is initially closed by the manual operation of a button 15 which closes contacts 8 and 10 to start an automatic cycle which immediately causes pick-up arm 18 to lift. The magnetic attraction between plate 19 and rod 4 causes the latter to lift and move an over-centre spring switch lever 5 to the lower stable position shown in Fig. 1 so that the circuit is maintained until the automatic cycle is completed. When this is completed the pickup arm comes to rest again on the rod 4 and causes the switch lever 5 to take up its upper stable position and the circuit thereby broken. In a non-automatic gramophone, the switch is operated merely by the manual lifting and replacing of the pick-up arm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL236821 | 1959-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB877806A true GB877806A (en) | 1961-09-20 |
Family
ID=19751606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7400/60A Expired GB877806A (en) | 1959-03-05 | 1960-03-02 | Improvements in or relating to devices for record players |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT218270B (en) |
| BE (1) | BE588249A (en) |
| CH (1) | CH383025A (en) |
| DE (1) | DE1118489B (en) |
| DK (1) | DK95498C (en) |
| ES (1) | ES256193A1 (en) |
| GB (1) | GB877806A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2324214A (en) * | 1940-01-31 | 1943-07-13 | Rca Corp | Phonograph apparatus |
| FR1090719A (en) * | 1953-10-06 | 1955-04-04 | Thomson Houston Comp Francaise | Advanced automatic shut-off device for record players and similar machines |
-
1960
- 1960-03-02 ES ES0256193A patent/ES256193A1/en not_active Expired
- 1960-03-02 GB GB7400/60A patent/GB877806A/en not_active Expired
- 1960-03-02 CH CH235960A patent/CH383025A/en unknown
- 1960-03-02 AT AT161360A patent/AT218270B/en active
- 1960-03-02 DE DEN17964A patent/DE1118489B/en active Pending
- 1960-03-03 BE BE588249A patent/BE588249A/en unknown
- 1960-03-03 DK DK82060A patent/DK95498C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DK95498C (en) | 1963-03-04 |
| ES256193A1 (en) | 1960-05-16 |
| CH383025A (en) | 1964-10-15 |
| DE1118489B (en) | 1961-11-30 |
| BE588249A (en) | 1960-09-05 |
| AT218270B (en) | 1961-11-27 |
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