GB830728A - Hydraulically operated electric switch devices - Google Patents

Hydraulically operated electric switch devices

Info

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
Application number
GB20439/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JACOBSENS ELEK SKE VERKSTED AS
Original Assignee
JACOBSENS ELEK SKE VERKSTED AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JACOBSENS ELEK SKE VERKSTED AS filed Critical JACOBSENS ELEK SKE VERKSTED AS
Publication of GB830728A publication Critical patent/GB830728A/en
Expired legal-status Critical Current

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.
GB20439/58A 1957-06-25 1958-06-25 Hydraulically operated electric switch devices Expired GB830728A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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