GB252506A - Improvements in coil holders used in wireless telegraph and telephone apparatus - Google Patents
Improvements in coil holders used in wireless telegraph and telephone apparatusInfo
- Publication number
- GB252506A GB252506A GB903825A GB903825A GB252506A GB 252506 A GB252506 A GB 252506A GB 903825 A GB903825 A GB 903825A GB 903825 A GB903825 A GB 903825A GB 252506 A GB252506 A GB 252506A
- Authority
- GB
- United Kingdom
- Prior art keywords
- socket
- coil
- pin
- movable
- screw
- 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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/004—Arrangements for interchanging inductances, transformers or coils thereof
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
252,506. Johnson, N. G. April 4,1925. Wireless tuning-apparatus, adjustment devices for.-In holders for transformer and reaction coils in wireless apparatus and for other relatively movable inductances, of the kind in which rotation of the coil is effected through a pin-and-slot or pin-and-groove device having its two operative parts mounted respectively on the movable coilsocket and on the controlling member, an externally screw-threaded spindle f traverses an internally screw-threaded member g in the plane of rotation of the movable coil-socket c, the member g being provided with one part of the pin-and-slot or pin-and-grooves device through which it rotates the socket c. Pins h on the member g may engage slots i in the limbs of a U-shaped bracket j secured to the socket c which is rocked relatively to a fixed coil-socket b in a frame a. In a modification, pins on the bracket or on the movable coil-socket engage grooves in the member g. Two coils may be moved relatively to one another or to a fixed coil by concentric spindles provided with controlling knobs and screw-threaded portions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB903825A GB252506A (en) | 1925-04-04 | 1925-04-04 | Improvements in coil holders used in wireless telegraph and telephone apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB903825A GB252506A (en) | 1925-04-04 | 1925-04-04 | Improvements in coil holders used in wireless telegraph and telephone apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB252506A true GB252506A (en) | 1926-06-03 |
Family
ID=9864188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB903825A Expired GB252506A (en) | 1925-04-04 | 1925-04-04 | Improvements in coil holders used in wireless telegraph and telephone apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB252506A (en) |
-
1925
- 1925-04-04 GB GB903825A patent/GB252506A/en not_active Expired
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