GB830728A - Hydraulically operated electric switch devices - Google Patents
Hydraulically operated electric switch devicesInfo
- Publication number
- GB830728A GB830728A GB20439/58A GB2043958A GB830728A GB 830728 A GB830728 A GB 830728A GB 20439/58 A GB20439/58 A GB 20439/58A GB 2043958 A GB2043958 A GB 2043958A GB 830728 A GB830728 A GB 830728A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- pressure
- june
- housing
- cylinder
- 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
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Bags (AREA)
Abstract
830,728. Hydraulic actuation of switches. JACOBSENS ELEKTRISKE VERKSTED A.S., N. June 25, 1958 [June 25, 1957], No. 20439/58. Class 38 (5). An hydraulically - operated switch suitable for traffic registration comprises a bottleshaped housing 5 whose neck contains a cylinder 9 and a movable piston 8 having a tiltably-attached disc 7 for bridging contacts 6. The housing 5 is connected by a tube 4 to a steel container acted on by pressure (Fig. 1, not shown), the whole system being filled with an insulating liquid 11, and a gas bubble 12 absorbing the volume variations of the tube system. A clearance between the piston 8 and cylinder 9 forms a by-pass to equalize the pressure between members 4 and 5, after a pressure wave has lifted the piston, the turbulence of such a wave being fully utilized by the axiallyvarying cross-section of the piston 8. Alternative forms of by-pass may be provided and the whole pressure system may be either open or closed to the atmosphere.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO830728X | 1957-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB830728A true GB830728A (en) | 1960-03-16 |
Family
ID=19907256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20439/58A Expired GB830728A (en) | 1957-06-25 | 1958-06-25 | Hydraulically operated electric switch devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB830728A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3334206A (en) * | 1966-06-27 | 1967-08-01 | Reynolds Richard | Control means for water distribution apparatus |
GB2132020A (en) * | 1982-11-22 | 1984-06-27 | Gen Electric | Pneumatic ball contact switch |
-
1958
- 1958-06-25 GB GB20439/58A patent/GB830728A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3334206A (en) * | 1966-06-27 | 1967-08-01 | Reynolds Richard | Control means for water distribution apparatus |
GB2132020A (en) * | 1982-11-22 | 1984-06-27 | Gen Electric | Pneumatic ball contact switch |
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