GB1219459A - Improvements in or relating to variable inductors - Google Patents
Improvements in or relating to variable inductorsInfo
- Publication number
- GB1219459A GB1219459A GB4236468A GB4236468A GB1219459A GB 1219459 A GB1219459 A GB 1219459A GB 4236468 A GB4236468 A GB 4236468A GB 4236468 A GB4236468 A GB 4236468A GB 1219459 A GB1219459 A GB 1219459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- contact
- axis
- sept
- wall
- 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
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Fuses (AREA)
- General Induction Heating (AREA)
Abstract
1,219,459. Heating inductors. COMPAGNIE FRANCAISE THOMSON-HOUSTONHOTCHKISS BRANDT. 5 Sept., 1968 [5 Sept., 1967], No. 42364/68. Heading H5H. [Also in Division H1] The inductance of a variable, high-frequency, heating inductor is adjusted by rotation of the coil 1 about its axis A, a movable contact element 3 being provided, having a shape resembling a cylinder with rounded ends and supported so that one of its ends is in permanent contact, as at 5, with at least one turn of the coil and the other in contact, as at 6, with a conductive wall 2, to which one end of the coil is also connected. If the element is arranged to contact a single turn an insulating guide, e.g. a two-pronged fork, is affixed to it in order to hold it in engagement with the coil conductor. Alternatively the element may be arranged to run between two turns so as to contact both of them (Fig. 4, not shown). In a further embodiment two separate elements respectively contacting adjacent turns are provided. The or each element is pivoted with its axis approximately perpendicular to A in a U-shaped insulating plastics holder 7, the or both of which are supported by an articulated metal framework 10, 11, 14 pivoted at 15, 16 and provided with a counterbalance weight 24. The element is urged against the coil by a spring 25 and is preferably arranged so that the line joining the points of contact 5 and 6 is not radial with respect to the axis A (Fig. 2, not shown). Pellets of a metal having a good conductivity but low coefficient of friction, e.g. silver containing a small quantity of carbon, may be soldered to the element at the contact points. The element is cooled by passing a jet of compressed air through it. The coil conductor may be a copper tube, through which cooling fluid is circulated. If the coil is to be connected to a capacitor the wall 2 may be one of the metal plates of that capacitor. A common wall may be used for two coils connected together either in series or parallel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR119965 | 1967-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1219459A true GB1219459A (en) | 1971-01-13 |
Family
ID=8637774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4236468A Expired GB1219459A (en) | 1967-09-05 | 1968-09-05 | Improvements in or relating to variable inductors |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH469332A (en) |
| FR (1) | FR1551934A (en) |
| GB (1) | GB1219459A (en) |
| NL (1) | NL6811833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160372247A1 (en) * | 2015-06-16 | 2016-12-22 | Samsung Electro-Mechanics Co., Ltd. | Variable inductance inductor and variable inductance inductor module |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620164A (en) * | 1983-11-02 | 1986-10-28 | Elmec Corporation | Variable delay line having linking electrode with depressions therein for snug engagement of moveable contact |
| JPS60149201A (en) * | 1984-01-13 | 1985-08-06 | Elmec Corp | Variable delay line |
-
1967
- 1967-09-05 FR FR1551934D patent/FR1551934A/fr not_active Expired
-
1968
- 1968-08-20 NL NL6811833A patent/NL6811833A/xx unknown
- 1968-08-29 CH CH1294368A patent/CH469332A/en unknown
- 1968-09-05 GB GB4236468A patent/GB1219459A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160372247A1 (en) * | 2015-06-16 | 2016-12-22 | Samsung Electro-Mechanics Co., Ltd. | Variable inductance inductor and variable inductance inductor module |
| US10204728B2 (en) * | 2015-06-16 | 2019-02-12 | Samsung Electro-Mechanics Co., Ltd. | Variable inductance inductor and variable inductance inductor module |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6811833A (en) | 1969-03-07 |
| FR1551934A (en) | 1969-01-03 |
| DE1764902A1 (en) | 1972-02-24 |
| CH469332A (en) | 1969-02-28 |
| DE1764902B2 (en) | 1973-01-25 |
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