|Publication number||US1605557 A|
|Publication date||Nov 2, 1926|
|Filing date||Oct 20, 1925|
|Priority date||Sep 17, 1924|
|Publication number||US 1605557 A, US 1605557A, US-A-1605557, US1605557 A, US1605557A|
|Original Assignee||Drahtlose Telegraphie M B H Ha|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (4), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Nov. 2 1926. 1,605,557
M. OSNOS INDUCTANCR DEVICE Filed Oct. 20, 1925 10 F k L l] 20 b INVENTOR MENDEL OSNOS BY A ' AT ORNEY following Patented Nov. 2,1926.
UNITED STATE 5 PATENT. OFFICE.
IENDEL OSNOS, 0]! BERLIN,
LOSE TELEGRAPIQIIE M. B. CORPORATION OF GERMANY.
Application filed October 20, 1925, Serial No.
The invention relates to the construction of inductance devices, such coils, static frequency changers and the like, and, more particularly, to an inductance device "made up of a conductor having a core of conducting material surrounded by a layer of magnetic material such as disclosed in German application No. T-29246 filed in Germany September 5, 1924, corresponding U. S. application being filed under Serial No. 63,617, filed Oct. 20, 1925.
The invention comprises the provision of a frame on which the conductor may be wound in order to allow a desirable length of conductor to be used and yet to prevent adjacent portions of the conductor from touching each other.
An object of the invention is to provide a device of the above indicated construction which will be cheap to make and yet reliable and eflicient in operation.
Other ob'ects will be apparent from the escri tion and appended claims when considere with the accompanying drawing in which, p
Fig. 1 represents a device according to the invention,
Fig. 2 represents struction,
Fig. 3 1s a detail of the construction shown in Fig. 2, and, M
Fig. 4 is a cross-section of the novel conductor used, greatly exaggerated.
The present invention relates to a particularly convenient constructional formation of the fieqllien changer ent app fcation. If, in accordance with the parent application the conductor of the frequencychanger is d bifilar fashion or liriilg-zag fashion, spreading apart of the pa el portions of the conductor, or, what is worse, their touching possibly produced as a consequence of thermal expansion must be prevented. For this purpose, in conformity with the invention, the conductor 1s arranged in a way so that it is subject to tension, the force needed therefor being proiiiiiced by a spring, a pull-off weight, or the e. Referring to Fi 1 the conductor 10 which is wound dou le, the middle being denoted by m, is stretched on two carrier members b, b, which are kept apart, for instance, by two comp springs f, the middle m a different form of conas used for choke according to the par- 63,616, and in Germany September 17, 1924.
and the ends a and e of the conductor being fastened to the carriers in any desired manner. The carriers, or at least the portions thereof coming in contact with the conductor are made up of insulating material as, for instance, porcelain, and theyv are suitably provided with grooves or furrows 20-to preserve proper distance between the conductor turns.
The conductor 10 may be made up of a conducting core 11 such as copper, surrounded by a layer 12 of magnetic material such as iron or some alloy thereof. The-layer of I magnetic material is preferably quite thin,
- of the conductor 10 being again fastened fixedly to the carriers as indicated or at the frame or support.
The turns of the conductor 10 are largely omitted, parts of the turns being shown dotted for the sake of clearness. The frame or support a may be made of any insulating material, such as'wood, slate, asbestos, soapstone or the like.
Some or all of the carriers b are disposed in radial passages 30 in the ends of the corresponding arms 0, the carriers 6 beinig firmly pressed against the conductor 10 by the springs 7 located between the bottoms of the passages 30 and the adjacent ends of the carriers 6.
Having described my invention, I am entitled to all modifications. thereof as fall fairly-within its spirit and scope as set forth in the following claims:
1. An inductance device, comprising a 'in the cross-section area.
2. An inductance 'device, comprising a conductor having a core of conducting material surrounded by a layer of magnetic material, a supportingfframe comprising a plurality of carriers, said conductor being Wound double around said carriers, and means for resiliently holding said conductor tight with respectto said carriers so that there will be no variance of impedance due to a change of shape in the cross-section area of the conductor.
' 3. An inductance device, comprising a conductor having a core of conducting material surrounded by a layer of magnetic material, a frame having a plurality of carrier members provided with conductor holding grooves, said conductor being wound double around said carriers with its middle fixed toa carrier member and-its ends also fixed'to" a carrier membeiyand means including springs between said carriers for resiliently holding said conductor tight so that there will be no change inthe impedance in the coil due to a varying cross-sec- .tion area.
4. An inductance device, comprising a conductor, a supporting frame having a plurality of radially extending arms, said arms having carrier holding passages in the ends thereof, carriers in said passages, said carriers having conductor holding grooves, said conductor being disposed in said grooves and Wound double around said carriers with its middle fixed to a carrier and its ends also fixed to a carrier, and springs in said passages for resiliently holding said conductor tight so that there will be no impedance change in the bi-filar winding due to a varying cross-section area.
5. An inductance device, comprising a conductor having a core of conducting material surroundded by a layer of magnetic material, a supporting frame having a plurality of radially extending arms, said arms having carrier holding passages in the ends.
thereof, carriers in said passages, said oarriers having conductor-holding grooves, said conductor being disposed in said grooves and wound double around said carriers with its middle fixed to a carrier and its ends also fixed to a carrier, and springs in said passages for resiliently holding said conductor tight so that there will be no impedance change in the bi-filar Winding due to a varying cross-section area.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2761094 *||Mar 19, 1952||Aug 28, 1956||Frampton George W||Magnetic hoists|
|US2788500 *||Mar 7, 1952||Apr 9, 1957||Gunderson Charles F||Saturable reactor|
|US4060784 *||Nov 22, 1976||Nov 29, 1977||A/S National Industri||Electrical inductive apparatus|
|US4725768 *||Nov 6, 1986||Feb 16, 1988||Toko Kabushiki Kaisha||Switching regulated power supply employing an elongated metallic conductive inductor having a magnetic thin film coating|
|U.S. Classification||336/177, 336/179, 336/175, 336/207, 336/83|