GB449426A - Improvements in or relating to electric switches employing a conducting liquid - Google Patents

Improvements in or relating to electric switches employing a conducting liquid

Info

Publication number
GB449426A
GB449426A GB1310035A GB1310035A GB449426A GB 449426 A GB449426 A GB 449426A GB 1310035 A GB1310035 A GB 1310035A GB 1310035 A GB1310035 A GB 1310035A GB 449426 A GB449426 A GB 449426A
Authority
GB
United Kingdom
Prior art keywords
mercury
switch
limbs
float
contact
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
GB1310035A
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.)
WALTER RONALD COX
General Electric Co PLC
Original Assignee
WALTER RONALD COX
General Electric Co PLC
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 WALTER RONALD COX, General Electric Co PLC filed Critical WALTER RONALD COX
Priority to GB1310035A priority Critical patent/GB449426A/en
Publication of GB449426A publication Critical patent/GB449426A/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
    • H01H29/20—Switches having at least one liquid contact operated by tilting contact-liquid container

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

449,426. Mercury switches. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and COX, W. R., and GIBSON, J. W., c/o General Electric Co., Ltd., Witton, Birmingham. May 2, 1935, No. 13100. [Class 38 (v)] A mercury switch comprises three vertical limbs 1, 2, 3 joined by horizontal limbs 4, 5, the limb 4 being formed with a construction 8. In the normal position shown, mercury connects contacts 6, 9 and if the switch is rocked fairly rapidly contact is made and broken at contact 6 due to movement of mercury in limbs 2 and 3. If the normal position is one in which the limbs are not vertical, mercury flows to or from limb 1 through constriction 8 and the level of the mercury relative to the contact 6 is unchanged and the operation of the switch due to rapid rocking is unaffected. The switch is used in sea fishing for controlling a flashing light on a marking float, the switch being operated by the rocking of the float, and is not rendered inoperative if the float takes a permanent list.
GB1310035A 1935-05-02 1935-05-02 Improvements in or relating to electric switches employing a conducting liquid Expired GB449426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1310035A GB449426A (en) 1935-05-02 1935-05-02 Improvements in or relating to electric switches employing a conducting liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1310035A GB449426A (en) 1935-05-02 1935-05-02 Improvements in or relating to electric switches employing a conducting liquid

Publications (1)

Publication Number Publication Date
GB449426A true GB449426A (en) 1936-06-26

Family

ID=10016827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1310035A Expired GB449426A (en) 1935-05-02 1935-05-02 Improvements in or relating to electric switches employing a conducting liquid

Country Status (1)

Country Link
GB (1) GB449426A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421146A (en) * 1945-11-02 1947-05-27 Goldberg Herman Raphael Device to teach speech to deaf and hard of hearing students and others

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421146A (en) * 1945-11-02 1947-05-27 Goldberg Herman Raphael Device to teach speech to deaf and hard of hearing students and others

Similar Documents

Publication Publication Date Title
GB466257A (en) Improvements in and relating to mercury and like conducting-liquid electric switches
GB449426A (en) Improvements in or relating to electric switches employing a conducting liquid
GB669932A (en) Improvements in float-operated electric switches
GB420208A (en) Improvements relating to electric hand lamps for signalling and other purposes
GB1246831A (en) A fail-safe electric switch
GB360595A (en) Improvements in or relating to electric signalling systems
GB206646A (en) Improvements in or relating to lighting ship's lifeboats and the like
US1528103A (en) Overflow alarm for refrigerator drip pans
GB380416A (en) Apparatus for indicating the direction of travel by means of electro-magnetically actuated direction indicators, in particular for motor vehicles
GB400672A (en) New or improved apparatus for the making of beverages
GB428930A (en) Improvements in, or relating to, electrical switches of the snap-action type
GB164083A (en) A new or improved audible and visual indicator for signalling purposes
GB428861A (en) Improvements in or relating to electrical switches of the snap-action type
GB667760A (en) Improvements in or relating to switches with mercury contacts
GB431159A (en) Improvements in or relating to automatically-operated snap-action electric switches
ES226018A3 (en) Improvements in float-operated electrical switches (Machine-translation by Google Translate, not legally binding)
GB162587A (en) Improvements in and relating to electric-emergency lighting installations
GB174705A (en) Improvements in or relating to electrical signalling apparatus
GB548498A (en) A float-operated electric switch
GB538457A (en) Improvements relating to electric switches
GB416050A (en) Improvements in or relating to devices for indicating effective operation of bell and like pushes
GB590627A (en) Improvements in or relating to float-controlled magnetic transmissions
ES265340A1 (en) Improvements in the construction of switches for the change of lights in vehicles (Machine-translation by Google Translate, not legally binding)
GB392255A (en) Improvements in or connected with electric selective control systems
GB429831A (en) Improvements in or relating to means for automatically signalling and effecting change over of kinematograph projectors