GB222712A - Improvements in or relating to crystal detectors for wireless telephone apparatus - Google Patents
Improvements in or relating to crystal detectors for wireless telephone apparatusInfo
- Publication number
- GB222712A GB222712A GB3024923A GB3024923A GB222712A GB 222712 A GB222712 A GB 222712A GB 3024923 A GB3024923 A GB 3024923A GB 3024923 A GB3024923 A GB 3024923A GB 222712 A GB222712 A GB 222712A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- crystal
- catswhisker
- wheel
- cam
- 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
- 239000013078 crystal Substances 0.000 title abstract 5
- 235000012469 Cleome gynandra Nutrition 0.000 abstract 3
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
Abstract
222,712. Wilkins & Wright, Ltd., Hewitt, J. H., and Hewitt, W. J. Dec. 1, 1923. Crystal detectors suitable for mounting on the under side of a panel have a single operating member which rotates the crystal and catswhisker simultaneously and gives an endwise reciprocating movement to one of them. As shown, the catswhisker 2 is mounted on the under side of a disc 9 rotatably mounted on a pivoted lever 8. A lever 12 on the same pivot carries a, pin 13 on one end of which is the crystal cup 19, and on the other a toothed wheel 14 with a cam surface 17. The disc 9 and wheel 14 are kept in engagement respectively with an insulating sleeve 35 and a pinion 15 by springs 11, 29 and a spring 20 keeps the cam 17 in engagement with a projection 16 on the lever 12. When the operating handle is turned the crystal is rotated and moved up and down and the catswhisker is rotated also at a different rate. The lever 8 is insulated from its pivot and connection is made from it by means of the spring 11 to a binding screw 26. The other connection is made to the casing. According to the Provisional Specification, the cam 17 is on the lever 12 instead of on the wheel 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3024923A GB222712A (en) | 1923-12-01 | 1923-12-01 | Improvements in or relating to crystal detectors for wireless telephone apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3024923A GB222712A (en) | 1923-12-01 | 1923-12-01 | Improvements in or relating to crystal detectors for wireless telephone apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB222712A true GB222712A (en) | 1924-10-09 |
Family
ID=10304639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3024923A Expired GB222712A (en) | 1923-12-01 | 1923-12-01 | Improvements in or relating to crystal detectors for wireless telephone apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB222712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7846016B2 (en) | 2006-07-12 | 2010-12-07 | Scientific Games International, Inc. | Lottery game with interactive game indicia selection |
-
1923
- 1923-12-01 GB GB3024923A patent/GB222712A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8795054B2 (en) | 2005-07-11 | 2014-08-05 | Scientific Games International, Inc. | Lottery game with interactive game indicia selection |
| US7846016B2 (en) | 2006-07-12 | 2010-12-07 | Scientific Games International, Inc. | Lottery game with interactive game indicia selection |
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