GB550303A - Improvements in or relating to float actuated means for the control of liquid levels - Google Patents

Improvements in or relating to float actuated means for the control of liquid levels

Info

Publication number
GB550303A
GB550303A GB1649941A GB1649941A GB550303A GB 550303 A GB550303 A GB 550303A GB 1649941 A GB1649941 A GB 1649941A GB 1649941 A GB1649941 A GB 1649941A GB 550303 A GB550303 A GB 550303A
Authority
GB
United Kingdom
Prior art keywords
weight
liquid
controlled
supply
chamber
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
GB1649941A
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.)
DAVID HUTTON NEILSON
DAVY and UNITED ENGINEERING COMP
ROY MATHIESON
Davy Loewy Ltd
Original Assignee
DAVID HUTTON NEILSON
DAVY and UNITED ENGINEERING COMP
ROY MATHIESON
Davy Loewy 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 DAVID HUTTON NEILSON, DAVY and UNITED ENGINEERING COMP, ROY MATHIESON, Davy Loewy Ltd filed Critical DAVID HUTTON NEILSON
Priority to GB1649941A priority Critical patent/GB550303A/en
Publication of GB550303A publication Critical patent/GB550303A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

550,303. Actuation of switches. NEILSON, D. H., MATHIESON, R., and DAVY & UNITED ENGINEERING CO., Ltd. Dec. 22, 1941, No. 16499. [Class 38 (v)] [Also in Group XVIII] Liquid level is controlled by a "float" device depending upon the relative losses of weight due to immersion in liquid of two bodies made from materials of different specific gravity and the relative gains in weight when unsubmerged. A float chamber a is connected at b and c with the top and bottom of a reservoir the supply to which is to be controlled. A lever d pivoted at f carries two weights g, h of different sizes and specific gravities. One weight h carries a soft iron j in a non-magnetic tube k surrounded by a coil m adapted to produce a magnetic circuit through a pole piece p, variable air gap r, and pivoted armature s. When the chamber a is empty the weight h falls, the magnetic flux is at a minimum, and the armature s opens the contacts t whereby a valve or pump is controlled to supply liquid to the reservoir. When the chamber a is filled, the loss of weight of the body h is greater than that of g (they may be of aluminium and lead respectively), the body h rises and the switch closes to stop the supply of liquid. Alternatively, the lever d may act directly on a switch, change an inductance or magnetic field, actuate electro-optical means, or move a permanent magnet controlling the contacts.
GB1649941A 1941-12-22 1941-12-22 Improvements in or relating to float actuated means for the control of liquid levels Expired GB550303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1649941A GB550303A (en) 1941-12-22 1941-12-22 Improvements in or relating to float actuated means for the control of liquid levels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1649941A GB550303A (en) 1941-12-22 1941-12-22 Improvements in or relating to float actuated means for the control of liquid levels

Publications (1)

Publication Number Publication Date
GB550303A true GB550303A (en) 1943-01-01

Family

ID=10078430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1649941A Expired GB550303A (en) 1941-12-22 1941-12-22 Improvements in or relating to float actuated means for the control of liquid levels

Country Status (1)

Country Link
GB (1) GB550303A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513185A (en) * 1982-01-19 1985-04-23 Lucas Industries Float operated electrical switch assembly
GB2228620A (en) * 1989-02-23 1990-08-29 John Wyatt Liquid level warning devices
GB2268588A (en) * 1992-03-10 1994-01-12 Mobil Oil Ltd Leak detecting device for a liquid fuel dispensing system
GB2292836A (en) * 1994-09-01 1996-03-06 S B Services Device for detecting the presence of gas in the liquid output of a pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513185A (en) * 1982-01-19 1985-04-23 Lucas Industries Float operated electrical switch assembly
GB2228620A (en) * 1989-02-23 1990-08-29 John Wyatt Liquid level warning devices
GB2268588A (en) * 1992-03-10 1994-01-12 Mobil Oil Ltd Leak detecting device for a liquid fuel dispensing system
GB2292836A (en) * 1994-09-01 1996-03-06 S B Services Device for detecting the presence of gas in the liquid output of a pump
GB2292836B (en) * 1994-09-01 1998-06-10 S B Services Device for detecting the presence of gas in the output of a pump

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