GB498844A - Improvements in or relating to adjustment devices for variable reactance elements and the like - Google Patents
Improvements in or relating to adjustment devices for variable reactance elements and the likeInfo
- Publication number
- GB498844A GB498844A GB1964137A GB1964137A GB498844A GB 498844 A GB498844 A GB 498844A GB 1964137 A GB1964137 A GB 1964137A GB 1964137 A GB1964137 A GB 1964137A GB 498844 A GB498844 A GB 498844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clutch
- spider
- stops
- springs
- arm
- 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
- 241000239290 Araneae Species 0.000 abstract 2
- 230000000717 retained effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/04—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by hand
- H03J5/08—Settings determined by a number of separately-actuated positioning means
Landscapes
- Mechanical Operated Clutches (AREA)
Abstract
498,844. Adjusting wireless apparatus; stopping and starting mechanism. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and STEWART, J. July 15, 1937, No. 19641. [Class 37] [Also in Group XXIV] An adjustment device for a variable element, such as a condenser, comprises a friction clutch and a spring connection so arranged that after a limit stop in the adjustment has been reached, further drive in the same direction imparts a spring strain while the clutch slips. The driving mechanism, Fig. 2, cooperates with limit stops M, Fig. 1, an arm L, last on the driven shaft S, being retained in position against one or other of the stops by springs K on the driving drum G which is connected with cable controlling one or a number of tuning elements. The limit stops M are adjustable along an arcuate plate N. The drum G is slotted to receive an arm F located between the springs K and connected to an annular member B forming with a flanged disc A the friction clutch. The clutch member 13 is spring pressed by a spider C secured in position by a nut E and washer D, the latter having pins Q which pass through holes in the spider C and disc A, the parts A, C and D thereby being fast on the shaft S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1964137A GB498844A (en) | 1937-07-15 | 1937-07-15 | Improvements in or relating to adjustment devices for variable reactance elements and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1964137A GB498844A (en) | 1937-07-15 | 1937-07-15 | Improvements in or relating to adjustment devices for variable reactance elements and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB498844A true GB498844A (en) | 1939-01-16 |
Family
ID=10132733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1964137A Expired GB498844A (en) | 1937-07-15 | 1937-07-15 | Improvements in or relating to adjustment devices for variable reactance elements and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB498844A (en) |
-
1937
- 1937-07-15 GB GB1964137A patent/GB498844A/en not_active Expired
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