GB971956A - Gas pressure indicators - Google Patents
Gas pressure indicatorsInfo
- Publication number
- GB971956A GB971956A GB4142362A GB4142362A GB971956A GB 971956 A GB971956 A GB 971956A GB 4142362 A GB4142362 A GB 4142362A GB 4142362 A GB4142362 A GB 4142362A GB 971956 A GB971956 A GB 971956A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- housing
- gas pressure
- projecting member
- bellows
- 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
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
- H01H33/121—Load break switches
- H01H33/125—Load break switches comprising a separate circuit breaker
- H01H33/128—Load break switches comprising a separate circuit breaker being operated by a separate mechanism interlocked with the sectionalising mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H33/563—Gas reservoirs comprising means for monitoring the density of the insulating gas
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Massaging Devices (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
971, 956. Pressure gauges. S. & C. ELECTRIC CO. Nov. 1, 1962, No. 41423/62. Heading G1L. In a device such as a high voltage alternating current circuit interrupter the gas pressure in a housing 33 is indicated by the position of coloured indicators i.e. green or red reflective adhesive material, extending lengthwise over a rotatable drum 193. The gas under pressure within a main contact (65) housing 33 acts on an end 175 to compress a bellows 177 to move a tube 182 to a position in which a radially outwardly projecting member 188 secured thereto, abuts a radially inwardly projecting member 191 attached to the drum 193, to hold the drum 193 in a position in which a green light is visible through an opening 208. Should the gas pressure in the housing 33 drop, the bellows 177 expands to withdraw the rod 182 and member 188 out of engagement with the member 191 to allow the drum 193 to be rotated by a spring rod until a radially inwardly projecting member 211 abuts the member 188 to stop the drum 193 in a position in which a red indication is visible through opening 208. Specifications 898,462 and 898,463 are referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US118620A US3077527A (en) | 1961-06-21 | 1961-06-21 | Circuit interrupter |
GB4142362A GB971956A (en) | 1962-11-01 | 1962-11-01 | Gas pressure indicators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4142362A GB971956A (en) | 1962-11-01 | 1962-11-01 | Gas pressure indicators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB971956A true GB971956A (en) | 1964-10-07 |
Family
ID=10419611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4142362A Expired GB971956A (en) | 1961-06-21 | 1962-11-01 | Gas pressure indicators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB971956A (en) |
-
1962
- 1962-11-01 GB GB4142362A patent/GB971956A/en not_active Expired
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