GB246189A - Improvements in electric rheostats - Google Patents
Improvements in electric rheostatsInfo
- Publication number
- GB246189A GB246189A GB2066724A GB2066724A GB246189A GB 246189 A GB246189 A GB 246189A GB 2066724 A GB2066724 A GB 2066724A GB 2066724 A GB2066724 A GB 2066724A GB 246189 A GB246189 A GB 246189A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindle
- contact
- effected
- spring
- pressed
- 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
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/26—Adjustable resistors resistive element moving
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
Abstract
246,189. Woods, R. May 20, 1925. Collectors. - Rheostats of the type in which coarse adjustment is effected by relative sliding movement between a contact member and the resistance and fine adjustment is effected by relative rotary movement are provided with a spring-pressed contact-making metal ball. In the construction shown in Fig. 1 the resistance wire 2 is carried by the inner surface of an ebonite or other insulating cylinder 1. Contact arms 5 are carried by a spindle 4 which is mounted so as to slide and rotate in a plug 3. Contact with the spindle 4 is effected by a spring- pressed metal ball 13. A portion of the cylinder 1 projects beyond the wire 2 at one end 7 so that the circuit may be broken. There may be one, two, or three contact arms 5, of which only one need be electrically connected to the spindle 4. In the modification shown in Fig. 3 the resistance wire 2 is wound on the outer surface of an insulating cylinder 18, the far end being connected to the spindle 4. Contact with the resistance wire 2 is effected bv four spring-pressed balls 19 arranged in a metal ring 20. The spindle 4 mav be calibrated along its length, and a calibrated disc may be mounted on the stem 11 to cooperate with an indicating mark on the operating- knub 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2066724A GB246189A (en) | 1925-05-20 | 1925-05-20 | Improvements in electric rheostats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2066724A GB246189A (en) | 1925-05-20 | 1925-05-20 | Improvements in electric rheostats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB246189A true GB246189A (en) | 1926-01-28 |
Family
ID=10149664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2066724A Expired GB246189A (en) | 1925-05-20 | 1925-05-20 | Improvements in electric rheostats |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB246189A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2548591A (en) * | 1948-03-31 | 1951-04-10 | Gen Electric | Wire wound resistor |
| US2707811A (en) * | 1953-07-08 | 1955-05-10 | Theodore H Projector | Rheostat for aircraft panel light control |
| US2714147A (en) * | 1952-11-29 | 1955-07-26 | Robert L Reid | Potentiometer |
| US2841675A (en) * | 1954-07-12 | 1958-07-01 | Kendon Electronics Co Inc | Adjustable resistance elements |
| US2912662A (en) * | 1955-11-07 | 1959-11-10 | Itt | Potentiometer |
| DE1099052B (en) * | 1956-09-22 | 1961-02-09 | C M E Soc P Az Sa | Voltage divider with armored resistor |
-
1925
- 1925-05-20 GB GB2066724A patent/GB246189A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2548591A (en) * | 1948-03-31 | 1951-04-10 | Gen Electric | Wire wound resistor |
| US2714147A (en) * | 1952-11-29 | 1955-07-26 | Robert L Reid | Potentiometer |
| US2707811A (en) * | 1953-07-08 | 1955-05-10 | Theodore H Projector | Rheostat for aircraft panel light control |
| US2841675A (en) * | 1954-07-12 | 1958-07-01 | Kendon Electronics Co Inc | Adjustable resistance elements |
| US2912662A (en) * | 1955-11-07 | 1959-11-10 | Itt | Potentiometer |
| DE1099052B (en) * | 1956-09-22 | 1961-02-09 | C M E Soc P Az Sa | Voltage divider with armored resistor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB246189A (en) | Improvements in electric rheostats | |
| GB263948A (en) | Improvements in variable electric condensers | |
| GB450549A (en) | Improvements in or relating to variable resistance devices | |
| GB246325A (en) | Improvements in variable electric resistances | |
| GB254793A (en) | Improvements relating to electric switches | |
| US1312016A (en) | beemait | |
| GB218063A (en) | Improvements in rheostats | |
| GB210670A (en) | Improvements in or relating to variable grid leaks for use in connection with radio apparatus | |
| US1531390A (en) | Variable high resistance | |
| GB278930A (en) | Improvements in or relating to electrical resistance devices | |
| SU71232A1 (en) | Device for transmitting the anemorumbograph for the angle of rotation of the wind vane | |
| GB261605A (en) | Improvements in electric rheostats, potentiometers and the like | |
| US1455543A (en) | Spark plug | |
| GB244009A (en) | Improvements in or relating to variable electric condensers and the like | |
| GB232476A (en) | Improvements in rheostats or electric resistances | |
| GB516852A (en) | Improvements in continuously adjustable ohmic resistances for electric currents | |
| GB233944A (en) | Improvements in rheostats | |
| GB234017A (en) | Improvements in rheostats | |
| GB235051A (en) | Improvements in rheostats or variable resistances | |
| GB319598A (en) | Improvements in or relating to variable resistance devices | |
| GB287324A (en) | Improvements in and relating to crystal and like detectors for wireless signalling | |
| GB268211A (en) | Improvements in variable electric condensers | |
| GB233513A (en) | Variable electrical resistance | |
| GB198588A (en) | Improvements in or relating to sparking plugs | |
| GB315951A (en) | Improvements in or relating to supporting arms for gramophone "pick-up" devices and to means for mounting such devices in their supporting arms |