GB487447A - Improved braking devices for the tuning controls of radio receiving sets - Google Patents
Improved braking devices for the tuning controls of radio receiving setsInfo
- Publication number
- GB487447A GB487447A GB8294/37A GB829437A GB487447A GB 487447 A GB487447 A GB 487447A GB 8294/37 A GB8294/37 A GB 8294/37A GB 829437 A GB829437 A GB 829437A GB 487447 A GB487447 A GB 487447A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tuning
- radio receiving
- braking devices
- march
- group
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
Landscapes
- Braking Arrangements (AREA)
Abstract
487,447. Electromagnetically - operated brakes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 20, 1937, No. 8294. Convention date, March 23, 1936. [Class 103 (i)] [Also in Group XL] A braking device for arresting further movement of the tuning control of a radio receiver when a desired station is exactly tuned in, comprises a ring 3 of magnetic material secured to a resilient disc 10 which is mounted on the tuning shaft 2. When the receiver is exactly tuned to a desired signal, the electromagnet 5 is energized, attracts ring 3 and further movement of 2 is prevented. Lateral flexure of the disc 10 is permitted by the disposition of concentric rings 7, 8. In a modification, Fig. 3 (not shown), the electromagnet acts on an endless band of magnetic ribbon running on pulleys, one of which is driven by the tuning shaft. Specification 467,771, [Group XL], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE487447X | 1936-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB487447A true GB487447A (en) | 1938-06-21 |
Family
ID=6543622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8294/37A Expired GB487447A (en) | 1936-03-23 | 1937-03-20 | Improved braking devices for the tuning controls of radio receiving sets |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR819607A (en) |
| GB (1) | GB487447A (en) |
-
1937
- 1937-03-20 GB GB8294/37A patent/GB487447A/en not_active Expired
- 1937-03-22 FR FR819607D patent/FR819607A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR819607A (en) | 1937-10-22 |
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