GB875254A - Improvements in and relating to rotary drive mechanisms for maximum demand indicators or recording indicators - Google Patents
Improvements in and relating to rotary drive mechanisms for maximum demand indicators or recording indicatorsInfo
- Publication number
- GB875254A GB875254A GB3851456A GB3851456A GB875254A GB 875254 A GB875254 A GB 875254A GB 3851456 A GB3851456 A GB 3851456A GB 3851456 A GB3851456 A GB 3851456A GB 875254 A GB875254 A GB 875254A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- pointer
- maximum demand
- shaft
- clutched
- 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
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
-
- 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)
- Fluid Mechanics (AREA)
- Measurement Of Distances Traversed On The Ground (AREA)
- Measuring Volume Flow (AREA)
Abstract
875,254. Maximum demand meters. UNITED GAS INDUSTRIES Ltd. March 17, 1958 [Dec. 18, 1956], No. 38514/56. Class 106 (3). [Also in Group XXIV] An intermittent drive of a maximum demand indicator or recording indicator of an electricity meter comprises a gear 33, Fig. 2, driven from the meter mechanism which is loose on a shaft 34, which carries a gear 32 driving the driving pointer 39, Fig. 1, of the maximum demand indicator. The gear 33 is adapted to be clutched to the gear 32 and shaft 34 by a spring 35 acting on a sliding collar 19 which is intermittently actuated by a fork 18 on a lever 9, an intermediate lever 12 and a cam plate 5 on a constant speed shaft 3 driven by a synchronous electric motor 1. Thus for each revolution of shaft 3 the gear 33 is clutched to shaft 34 for a predetermined interval of time, to drive the pointer 39 an amount corresponding to the average rate of supply over that period, and then de-clutched to allow the pointer to return to its zero position under the action of a weighted quadrant 40. The pointer 39 is adapted to move a second coaxially arranged pointer to a maximum demand position. The predetermined interval of time is made variable by mounting the levers 9, 12 on a support member 7 pivoted about a fixed pivot 16 and adjustable by means of a member 20 engaged by an adjusting screw 21 in a bracket 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3851456A GB875254A (en) | 1956-12-18 | 1956-12-18 | Improvements in and relating to rotary drive mechanisms for maximum demand indicators or recording indicators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3851456A GB875254A (en) | 1956-12-18 | 1956-12-18 | Improvements in and relating to rotary drive mechanisms for maximum demand indicators or recording indicators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB875254A true GB875254A (en) | 1961-08-16 |
Family
ID=10403974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3851456A Expired GB875254A (en) | 1956-12-18 | 1956-12-18 | Improvements in and relating to rotary drive mechanisms for maximum demand indicators or recording indicators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB875254A (en) |
-
1956
- 1956-12-18 GB GB3851456A patent/GB875254A/en not_active Expired
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