GB274998A - Improvements in operating mechanism for electric condensers and other instruments - Google Patents
Improvements in operating mechanism for electric condensers and other instrumentsInfo
- Publication number
- GB274998A GB274998A GB1554826A GB1554826A GB274998A GB 274998 A GB274998 A GB 274998A GB 1554826 A GB1554826 A GB 1554826A GB 1554826 A GB1554826 A GB 1554826A GB 274998 A GB274998 A GB 274998A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- spindle
- planet wheels
- adjustment
- plate
- 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
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
- H03J1/14—Special arrangements for fine and coarse tuning
Landscapes
- Handcart (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Toys (AREA)
Abstract
274,998. Wilkins & Wright, Ltd., and' Hewitt, J. H. June 21, 1926. Wireless tuning-apparatus, adjustment devices for.-The main control knob 7 is rigidly attached, by means of a plate 8, sleeve 3, and set-screw 6, to the spindle 5 of a variable condenser 1 or other instrument such as a variometer or variocoupler. The fine-adjustment spindle 2 is rotatably mounted by ball bearings 40 in the sleeve 3 and is fastened by means of a set-screw 31 and nut 25 to the fine-adjustment knob 32. Slidably but non-rotatably mounted on the spindle 2 'is a friction disc 12 having a peripheral part-circular groove with which engage the peripheries of three or more planet wheels 14. These are arranged cone-wise and run within a fixed circular rim 15 secured to the panel 16 by the engagement of a fork-shaped projection 17 with a fixed pin 18 passing freely through a part circular slot in the plate 8. The lower faces of the planet wheels 14 engage and drive a part conical disc 24 secured to the sleeve 3. The pressure between the engaging surfaces of the planet wheels and their associated parts is varied, and backlash prevented, by three-armed plate springs 26, 27 adjustable by means of the nut 25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1554826A GB274998A (en) | 1926-06-21 | 1926-06-21 | Improvements in operating mechanism for electric condensers and other instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1554826A GB274998A (en) | 1926-06-21 | 1926-06-21 | Improvements in operating mechanism for electric condensers and other instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB274998A true GB274998A (en) | 1927-08-04 |
Family
ID=10061087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1554826A Expired GB274998A (en) | 1926-06-21 | 1926-06-21 | Improvements in operating mechanism for electric condensers and other instruments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB274998A (en) |
-
1926
- 1926-06-21 GB GB1554826A patent/GB274998A/en not_active Expired
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