GB565309A - Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container - Google Patents

Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container

Info

Publication number
GB565309A
GB565309A GB763043A GB763043A GB565309A GB 565309 A GB565309 A GB 565309A GB 763043 A GB763043 A GB 763043A GB 763043 A GB763043 A GB 763043A GB 565309 A GB565309 A GB 565309A
Authority
GB
United Kingdom
Prior art keywords
switch
rod
tube
fixed
arms
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
GB763043A
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.)
British Thermostat Co Ltd
Original Assignee
British Thermostat Co 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 British Thermostat Co Ltd filed Critical British Thermostat Co Ltd
Priority to GB763043A priority Critical patent/GB565309A/en
Publication of GB565309A publication Critical patent/GB565309A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
    • F22B37/428—Feed-water supply alarm devices using dilatation of solids or liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Temperature (AREA)

Abstract

565,309. Signalling or controlling liquid levels. BRITISH THERMOSTAT CO., Ltd., and SHERLOCK, J. E. May 13, 1943, No. 7630. [Class 123 (i)] [Also in Group XXXVII] A casing 1, shown in sectional elevation, is connected by pipes 2 to a boiler, and is provided with thermally expansible metal tubes 4, 5 one above the other, fixed to the end wall 6. The opposite ends slide in a guide 7 fixed to the end wall 9, and each tube contains a push-rod 11, 12 of " Invar " (Registered Trade Mark), the free ends of which actuate an electric switch 25. The switch mechanism comprises a rocking lever 19 pivoted at 20, surrounding a fixed member 31 and integral with arms 21, 22 engaged by the rods 11, 12. The free ends of arms 22 carry adjustable elements 23 for operating a rod 24 which controls the switch 25 mounted on a fixed bracket 26. The pivot 20 is carried by a sliding member 27 which is pressed by spring 28 to maintain the arms 22 in engagement with rods 11, 12. The tube 5 is constantly subject to an electric heater 10, but approximates in temperature to tube 4 so long as it is submerged. If uncovered by a fall of water level, tube 5 rises in temperature and actuates its rod 12 to move the switch rod 24. Variations in ambient temperature of the rods 4, 5 do not operate the switch. The switch controls a pump, valve, or alarm device.
GB763043A 1943-05-13 1943-05-13 Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container Expired GB565309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB763043A GB565309A (en) 1943-05-13 1943-05-13 Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB763043A GB565309A (en) 1943-05-13 1943-05-13 Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container

Publications (1)

Publication Number Publication Date
GB565309A true GB565309A (en) 1944-11-06

Family

ID=9836793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB763043A Expired GB565309A (en) 1943-05-13 1943-05-13 Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container

Country Status (1)

Country Link
GB (1) GB565309A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1535491A2 (en) * 2002-08-27 2005-06-01 Thermion Ltd Improvements in thermostat for water boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1535491A2 (en) * 2002-08-27 2005-06-01 Thermion Ltd Improvements in thermostat for water boiler
EP1535491A4 (en) * 2002-08-27 2007-03-21 Thermion Ltd Improvements in thermostat for water boiler

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