GB231006A - Improvements in or relating to inductance coils and devices - Google Patents
Improvements in or relating to inductance coils and devicesInfo
- Publication number
- GB231006A GB231006A GB914724A GB914724A GB231006A GB 231006 A GB231006 A GB 231006A GB 914724 A GB914724 A GB 914724A GB 914724 A GB914724 A GB 914724A GB 231006 A GB231006 A GB 231006A
- Authority
- GB
- United Kingdom
- Prior art keywords
- turns
- coil
- secured
- pins
- variometer
- 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
- H01F21/005—Inductances without magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
231,006. India Rubber, Gutta Percha, &. Telegraph Works Co., Ltd., and Spinks, W. G. April 10, 1924. Inductances.-A coil comprises a number of plain turns wound over pins B<2>, Fig. 2, each of which is preceded or followed by one or more zig-zag turns wound over and under the pins. The plain turns may lie, on the inside of the pins instead of the outside, being retained during winding by flat springs attached to the base of each pin. In the coil shown each plain turn A<1> is followed by a pair of zig-zag turns A<2> having their loops oppositely disposed. The pins may be curved to give the coil a substantially spherical form. Alternatively the coil may be cylindrical, rectangular, or D-shaped. After removal from the former, the coil may be bound with thread and varnished. Alternatively, the coil may be permanently mounted on its former. A variometer mav have its stator or rotor coils or both wound in this fashion. In the variometer shown in Fig. 5, the stator comprises truncated hemispherical windings C<7>, C<8> secured against ebonite end-rings C<1>, C<2> by L-shaped members C<9>. The rotor coils D<4>, D<5> are secured between an ebonite disc D<1> and end members D<6>, D' which are drawn together by a bolt. The rings C', C<2> are connected by metal plates C<3> which form bearings for spindle members secured to the disc D'. The spindles are provided with collars secured thereto by grub-screws; one collar abuts against its bearing plate and the other is separated therefrom by a spring washer. One spindle is provided with a knob and dial secured by a grub-screw. The adjacent turns of the rotor coils are connected together, and the end turns are connected to the two spindles. The adjacent turns of the stator coils are connected together and the end turns are connected respectively to a terminal C<12> and one metal plate C<3>. The other metal plate is connected to a terminal C<13>. The variometer is supported by feet C<7>. Thin semi-circular insulating strips C<5>, C<6> are fitted in grooves in the rings C<1>, C<2>.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB914724A GB231006A (en) | 1924-04-10 | 1924-04-10 | Improvements in or relating to inductance coils and devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB914724A GB231006A (en) | 1924-04-10 | 1924-04-10 | Improvements in or relating to inductance coils and devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB231006A true GB231006A (en) | 1925-03-26 |
Family
ID=9866279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB914724A Expired GB231006A (en) | 1924-04-10 | 1924-04-10 | Improvements in or relating to inductance coils and devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB231006A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11970916B2 (en) | 2020-07-16 | 2024-04-30 | Gregg Drilling, LLC | Geotechnical rig systems and methods |
-
1924
- 1924-04-10 GB GB914724A patent/GB231006A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11970916B2 (en) | 2020-07-16 | 2024-04-30 | Gregg Drilling, LLC | Geotechnical rig systems and methods |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1889398A (en) | Electrical coil and a method of manufacturing it | |
GB231006A (en) | Improvements in or relating to inductance coils and devices | |
US1457619A (en) | Audiofrequency coupling transformer | |
US2946028A (en) | Polyphase transformer | |
GB369735A (en) | Improvements in and relating to inductance coil formers | |
US1575552A (en) | Coupling transformer | |
GB224976A (en) | Improvements in variable inductances | |
GB238560A (en) | Improvements in inductance coils | |
US1775053A (en) | Transformer core | |
US1637649A (en) | Inductance | |
GB235654A (en) | Improvements in or relating to variable inductance devices | |
GB205948A (en) | Improvements in or relating to electric transformers | |
AT73995B (en) | Automatic release and braking device on winding machines for winding electrical coils. | |
US1541398A (en) | Radiofrequency transformer | |
US1190086A (en) | Telephone-circuit. | |
US1510876A (en) | Variometer | |
GB269550A (en) | Improvements in induction-coils for wireless apparatus | |
GB248925A (en) | Improvements in and relating to electric transformers | |
SU30318A1 (en) | A device for simultaneous transmission of the same program by radio and by wire | |
GB216084A (en) | Improvements in or relating to inductance, reactance and the like coils for wirelesstelegraphy or telephony, suitable also for use in variometers | |
GB213281A (en) | Improvements in variometers | |
GB335283A (en) | Improvements in regulating transformers | |
US1536482A (en) | Telephone receiver | |
US1262838A (en) | Electromagnetic apparatus. | |
US1972178A (en) | High potential lead-in |