GB308902A - Improvements in and relating to wireless apparatus - Google Patents
Improvements in and relating to wireless apparatusInfo
- Publication number
- GB308902A GB308902A GB1041528A GB1041528A GB308902A GB 308902 A GB308902 A GB 308902A GB 1041528 A GB1041528 A GB 1041528A GB 1041528 A GB1041528 A GB 1041528A GB 308902 A GB308902 A GB 308902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformers
- base
- sets
- sockets
- panel
- 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
- 238000007789 sealing Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
- H01H15/02—Details
- H01H15/06—Movable parts; Contacts mounted thereon
Landscapes
- Housings And Mounting Of Transformers (AREA)
- Structure Of Receivers (AREA)
- Transceivers (AREA)
Abstract
308,902. Newman, E. H., and Baynes, M., (trading as Langham Radio), and Knight, V. S. April 5, 1928. No Patent granted (Sealing fee not paid). Transformers.-Two or more alternative sets of high-frequency transformers are mounted on a base which slides longitudinally on a fixed member and in its movement cuts the sets of apparatus in and out of a wireless receiving-circuit. As shown in Fig. 2, two pairs of transformers a, bare mounted in four-pin sockets a<1>, b<1> on a sliding case c. One pair is for short-wave reception, and the other for long-waves. The base c slides in channel guides d' attached to a lower panel e which is spaced from an upper panel f by pillars g. The lower ends of the sockets a<1>, b<1> are formed as concave recesses, co-operating with contact plungera k which are slidably mounted in the panel e and are pressed upwards by flat springs k<1>. There are two sets of plungers k and the transformers a, b are brought into circuit by sliding the base c sideways to bring one or other set of sockets over the plungers. The base c is moved by a handle h<2> connected to a bar h attached to the transformers a and its movement is limited by stops j.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE353610D BE353610A (en) | 1928-04-05 | ||
| GB1041528A GB308902A (en) | 1928-04-05 | 1928-04-05 | Improvements in and relating to wireless apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1041528A GB308902A (en) | 1928-04-05 | 1928-04-05 | Improvements in and relating to wireless apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB308902A true GB308902A (en) | 1929-04-04 |
Family
ID=9967397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1041528A Expired GB308902A (en) | 1928-04-05 | 1928-04-05 | Improvements in and relating to wireless apparatus |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE353610A (en) |
| GB (1) | GB308902A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1033743B (en) * | 1955-07-08 | 1958-07-10 | Philips Patentverwaltung | Waveband switch, especially channel selector for television receivers |
| DE1068320B (en) * | 1959-11-05 |
-
0
- BE BE353610D patent/BE353610A/xx unknown
-
1928
- 1928-04-05 GB GB1041528A patent/GB308902A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1068320B (en) * | 1959-11-05 | |||
| DE1033743B (en) * | 1955-07-08 | 1958-07-10 | Philips Patentverwaltung | Waveband switch, especially channel selector for television receivers |
Also Published As
| Publication number | Publication date |
|---|---|
| BE353610A (en) |
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