GB861653A - Improvements in or relating to electric conducting liquid switches - Google Patents

Improvements in or relating to electric conducting liquid switches

Info

Publication number
GB861653A
GB861653A GB1465458A GB1465458A GB861653A GB 861653 A GB861653 A GB 861653A GB 1465458 A GB1465458 A GB 1465458A GB 1465458 A GB1465458 A GB 1465458A GB 861653 A GB861653 A GB 861653A
Authority
GB
United Kingdom
Prior art keywords
mercury
electrodes
relating
circuit
electric conducting
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
GB1465458A
Inventor
Ernest Emil Otto Engel
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.)
Engel & Gibbs Ltd
Original Assignee
Engel & Gibbs Ltd
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 Engel & Gibbs Ltd filed Critical Engel & Gibbs Ltd
Priority to GB1465458A priority Critical patent/GB861653A/en
Publication of GB861653A publication Critical patent/GB861653A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/02—Details
    • H01H29/08—Means for introducing a predetermined time delay
    • H01H29/10—Means for introducing a predetermined time delay by constricting the flow of the contact liquid

Abstract

861,653. Mercury switches. ENGEL & GIBBS Ltd. April 3, 1959 [May 7, 1958], No. 14654/58. Class 38 (5). An evacuated or inert gas-filled glass envelope containing mercury or other conductive liquid comprises a -main chamber 13 having electrodes 11 and 12 sealed in extensions 17 and 14 such that both retain a certain quantity of mercury throughout operation of the switch. When the envelope is tilted as in Fig. 2 the mercury flows into extension 14 to complete the circuit between electrodes 11 and 12 but a small accurately-calibrated hole 22 in a thin plate 21 allows the mercury to leave the chamber 13 such that after a predetermined delay (which may be of the order of one second to three minutes) the circuit between the electrodes 11 and 12 is broken. The plate 21 is less than 0.001 inch thick and is preferably of platinum 0.0005 inch thick.
GB1465458A 1958-05-07 1958-05-07 Improvements in or relating to electric conducting liquid switches Expired GB861653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1465458A GB861653A (en) 1958-05-07 1958-05-07 Improvements in or relating to electric conducting liquid switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1465458A GB861653A (en) 1958-05-07 1958-05-07 Improvements in or relating to electric conducting liquid switches

Publications (1)

Publication Number Publication Date
GB861653A true GB861653A (en) 1961-02-22

Family

ID=10045151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1465458A Expired GB861653A (en) 1958-05-07 1958-05-07 Improvements in or relating to electric conducting liquid switches

Country Status (1)

Country Link
GB (1) GB861653A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005066987A1 (en) * 2003-12-31 2005-07-21 Honeywell International Inc. Self-healing liquid contact switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7189934B2 (en) 2003-11-13 2007-03-13 Honeywell International Inc. Self-healing liquid contact switch
WO2005066987A1 (en) * 2003-12-31 2005-07-21 Honeywell International Inc. Self-healing liquid contact switch

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