GB289252A - Improvements relating to electric meters - Google Patents
Improvements relating to electric metersInfo
- Publication number
- GB289252A GB289252A GB1048427A GB1048427A GB289252A GB 289252 A GB289252 A GB 289252A GB 1048427 A GB1048427 A GB 1048427A GB 1048427 A GB1048427 A GB 1048427A GB 289252 A GB289252 A GB 289252A
- Authority
- GB
- United Kingdom
- Prior art keywords
- meter
- potential
- energized
- lever
- coil
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/36—Induction meters, e.g. Ferraris meters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Irons (AREA)
Abstract
289,252. British Thomson-Houston Co., Ltd., and Lawes, W. H. April 19, 1927. stopping-devices for motor meters special quantities, registering. - An induction motor meter is provided with a mechanical latching- device for holding the movable element when the potential is below a predetermined value, which is released when the potential rises above this value. A two-rate meter is shown comprising a pair of induction motor meters 1, 2 having their current coils 6 connected in series and their potential coils 7 connected to a two-way selecting switch 15, which may be controlled by hand, by a time-switch, by a thermostat energized by the current in the potential coil, or electromagnetically by means of tuned circuits and impressed oscillations. Each meter is provided with a lever 8 pivoted at 9 and having a roughened or like end 10 which is pressed against the disc 3 to prevent rotation when the corresponding pressure magnet 4 is not energized, as shown in connection with the meter 2. The other end of the lever carries a soft iron portion 12 located in the field of the stray flux of the potential coil 7 which, when the corresponding coil is energized, causes the part 12 to be attracted to the core 4, thus permitting rotation of the disc 3 as shown in connection with the meter 1. A sheet of non-sticking material may be located at the face of the lever 8 or of the portion 12 to prevent sticking against the core 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1048427A GB289252A (en) | 1927-04-19 | 1927-04-19 | Improvements relating to electric meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1048427A GB289252A (en) | 1927-04-19 | 1927-04-19 | Improvements relating to electric meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB289252A true GB289252A (en) | 1928-04-26 |
Family
ID=9968677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1048427A Expired GB289252A (en) | 1927-04-19 | 1927-04-19 | Improvements relating to electric meters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB289252A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2446332A (en) * | 1945-01-13 | 1948-08-03 | Borg Erickson Corp | Dial holding means for weighing scales |
-
1927
- 1927-04-19 GB GB1048427A patent/GB289252A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2446332A (en) * | 1945-01-13 | 1948-08-03 | Borg Erickson Corp | Dial holding means for weighing scales |
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