GB736905A - Improvements in or relating to electrical regulating apparatus incorporating an automatic rotary switch device - Google Patents

Improvements in or relating to electrical regulating apparatus incorporating an automatic rotary switch device

Info

Publication number
GB736905A
GB736905A GB1240153A GB1240153A GB736905A GB 736905 A GB736905 A GB 736905A GB 1240153 A GB1240153 A GB 1240153A GB 1240153 A GB1240153 A GB 1240153A GB 736905 A GB736905 A GB 736905A
Authority
GB
United Kingdom
Prior art keywords
level
relating
switch device
rotary switch
apparatus incorporating
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
GB1240153A
Inventor
Josef Lambrecht
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.)
KARL WATTEL
Original Assignee
KARL WATTEL
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 KARL WATTEL filed Critical KARL WATTEL
Priority to GB1240153A priority Critical patent/GB736905A/en
Publication of GB736905A publication Critical patent/GB736905A/en
Expired legal-status Critical Current

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
    • H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch

Landscapes

  • Control Of Non-Electrical Variables (AREA)

Abstract

736,905. Automatic fluid-level control systems. MATTEL, K. May 5, 1953, No. 12401/53. Class 38 (4). [Also in Group XXXVII] To maintain the level of liquid in a tank between predetermined limits, movement of a float with changes of level rotates a spindle on which are mounted annular mercury switches 1, 2, Fig. 5, containing different quantities of mercury as shown. The arrangement is such that at the upper limit of level, switch 2 is closed to energize a relay 14 and start a motor 15 driving a pump to empty the tank. Emptying continues until a self-holding circuit of relay 14 is broken by the opening of switch 1 at the lower limit of level. The mercury switches are packed with damp-proof insulating and sealing compound in cylindrical boxes the mounting of which on the spindle, Figs. 1 and 9 (not shown), is adjustable to set the limits.
GB1240153A 1953-05-05 1953-05-05 Improvements in or relating to electrical regulating apparatus incorporating an automatic rotary switch device Expired GB736905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1240153A GB736905A (en) 1953-05-05 1953-05-05 Improvements in or relating to electrical regulating apparatus incorporating an automatic rotary switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1240153A GB736905A (en) 1953-05-05 1953-05-05 Improvements in or relating to electrical regulating apparatus incorporating an automatic rotary switch device

Publications (1)

Publication Number Publication Date
GB736905A true GB736905A (en) 1955-09-14

Family

ID=10003908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1240153A Expired GB736905A (en) 1953-05-05 1953-05-05 Improvements in or relating to electrical regulating apparatus incorporating an automatic rotary switch device

Country Status (1)

Country Link
GB (1) GB736905A (en)

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