GB238972A - An improved indicating or switching device actuated by the movement of a rotary member - Google Patents
An improved indicating or switching device actuated by the movement of a rotary memberInfo
- Publication number
- GB238972A GB238972A GB1367624A GB1367624A GB238972A GB 238972 A GB238972 A GB 238972A GB 1367624 A GB1367624 A GB 1367624A GB 1367624 A GB1367624 A GB 1367624A GB 238972 A GB238972 A GB 238972A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motion
- drum
- shaft
- movement
- switching device
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
Landscapes
- Lubricants (AREA)
Abstract
238,972. English Electric Co., Ltd., and Few, H. J. June 4, 1924. Indicating rest or motion. - In an in-motion indicator, the member 8 which gives the indication, or produces a switching effect, is rocked by a member 7, the force being transmitted by fluid friction. The members are formed as drums separated by a small space into which oil, grease, &c. contained in the inner drum passes. The drum 7 is fixed to a shaft 2 which is rotated when the shaft under observation is in motion. The drum 8, which surrounds the drum 7 loosely, is rooked by the fluid friction against the action of an adjustable spring 11. It carries an insulated strip 12 adapted to bridge contacts 14, 15 in an indicating circuit, which is broken when the, shaft is in motion. Stops 18, 20 limit the rocking movement. Temperature variations may be compensated for by making the drums of materials having different co-efficients of expansion. According to the Provisional Specification, the spring 11 may be dispensed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1367624A GB238972A (en) | 1924-06-04 | 1924-06-04 | An improved indicating or switching device actuated by the movement of a rotary member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1367624A GB238972A (en) | 1924-06-04 | 1924-06-04 | An improved indicating or switching device actuated by the movement of a rotary member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB238972A true GB238972A (en) | 1925-09-03 |
Family
ID=10027375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1367624A Expired GB238972A (en) | 1924-06-04 | 1924-06-04 | An improved indicating or switching device actuated by the movement of a rotary member |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB238972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2640899A (en) * | 1950-07-17 | 1953-06-02 | Bendix Aviat Corp | Switch actuating mechanism |
| DE3010448A1 (en) * | 1979-03-23 | 1980-10-02 | John James Bowey | SAFETY DEVICE FOR A MOTOR |
-
1924
- 1924-06-04 GB GB1367624A patent/GB238972A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2640899A (en) * | 1950-07-17 | 1953-06-02 | Bendix Aviat Corp | Switch actuating mechanism |
| DE3010448A1 (en) * | 1979-03-23 | 1980-10-02 | John James Bowey | SAFETY DEVICE FOR A MOTOR |
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