GB329760A - Improvements in maximum demand indicators for electric current - Google Patents
Improvements in maximum demand indicators for electric currentInfo
- Publication number
- GB329760A GB329760A GB9974/29A GB997429A GB329760A GB 329760 A GB329760 A GB 329760A GB 9974/29 A GB9974/29 A GB 9974/29A GB 997429 A GB997429 A GB 997429A GB 329760 A GB329760 A GB 329760A
- Authority
- GB
- United Kingdom
- Prior art keywords
- float
- maximum
- demand
- pointer
- rod
- 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
- G01R11/56—Special tariff meters
- G01R11/60—Subtraction meters; Meters measuring maximum or minimum load hours
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
329,760. Speight, J. E., and Record Electrical Co., Ltd. March 28, 1929. Indicating maximum movements.-An electric maximum-demand indicating instrument is provided with a freely movable float having a loose connection with the maximum-demand pointer in order to prevent the pointer from wandering. The device may be constructed as an attachment for existing cover-plates. In one arrangement, Fig. 2, the float n is contained in a liquid-filled chamber d, the float rod k being carried by the spindle f of the maximum demand indicator i and passing freely through the float. A plate or pair of arms l is engaged frictionally by a disc or cup member o for setting purposes. In a modification, Fig. 4, the float comprises an open-ended vessel constructed so that the rod k does not come in contact with the liquid during its movement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9974/29A GB329760A (en) | 1929-03-28 | 1929-03-28 | Improvements in maximum demand indicators for electric current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9974/29A GB329760A (en) | 1929-03-28 | 1929-03-28 | Improvements in maximum demand indicators for electric current |
Publications (1)
Publication Number | Publication Date |
---|---|
GB329760A true GB329760A (en) | 1930-05-29 |
Family
ID=9882193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9974/29A Expired GB329760A (en) | 1929-03-28 | 1929-03-28 | Improvements in maximum demand indicators for electric current |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB329760A (en) |
-
1929
- 1929-03-28 GB GB9974/29A patent/GB329760A/en not_active Expired
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