GB1159806A - Improvements in or relating to Condition Responsive Transmitting Units - Google Patents

Improvements in or relating to Condition Responsive Transmitting Units

Info

Publication number
GB1159806A
GB1159806A GB4804165A GB4804165A GB1159806A GB 1159806 A GB1159806 A GB 1159806A GB 4804165 A GB4804165 A GB 4804165A GB 4804165 A GB4804165 A GB 4804165A GB 1159806 A GB1159806 A GB 1159806A
Authority
GB
United Kingdom
Prior art keywords
track
wiper
carrying
float
nov
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
GB4804165A
Inventor
Albert Frederick Lacey
Willi Walter Bischoff
Dennis Hinchcliffe Cudworth
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.)
Smiths Group PLC
Original Assignee
Smiths Group 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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB4804165A priority Critical patent/GB1159806A/en
Publication of GB1159806A publication Critical patent/GB1159806A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
    • G01F23/36—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/04—Adjustable resistors with specified mathematical relationship between movement of resistor actuating means and value of resistance, other than direct proportional relationship

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

1,159,806. Measuring liquid level electrically. SMITHS INDUSTRIES Ltd. Nov. 11, 1966 [Nov. 12, 1965], No.48041/65. Heading G1N. [Also in Division H1] A liquid level gauge includes a potentiometer having a printed resistive track 18, Fig. 4, and a float operated wiper. The track 18 is on an insulating board 10, and has a rotatable wiper which moves along a line 22, a constant voltage source, energized for example from a vehicle battery, being connected via a heated bi-metallic strip type meter (2, Fig. 1, not shown) to one end 17 of the track, the wiper being earthed. The track, which may be an alloy of nickel and chromium or copper is of serpentine configuration, and the part remote from the end 17 is narrower than the rest (the change in width occurring at 21) to give a non-linear resistance variation. In an alternative track configuration Fig. 5 (not shown) the part 16 of the track between the end terminal 17 and the limit 23 of wiper movement is of greater width and length to provide heat dissipation in the event of an excessive voltage arising due to a fault in the regulation thereof. If a norrow track (18, Fig. 6, not shown) is used to achieve higher resistance per unit length widened portions (36) are provided for contact with the wiper. A float assembly for monitoring the fuel level of a vehicle Figs.2, 3 (not shown) consists of a float (11) on an arm (7) carrying the wiper (13). The board (10) carrying the track is mounted on a plate (6) in a housing (15), contact to the end 17, (Fig. 5), of the track being made via a rivet (29), a conductive strip (30), and a terminal (32) mounted in a plate (4) fixed in the tank wall and carrying the fuel outlet tube (5).
GB4804165A 1965-11-12 1965-11-12 Improvements in or relating to Condition Responsive Transmitting Units Expired GB1159806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4804165A GB1159806A (en) 1965-11-12 1965-11-12 Improvements in or relating to Condition Responsive Transmitting Units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4804165A GB1159806A (en) 1965-11-12 1965-11-12 Improvements in or relating to Condition Responsive Transmitting Units

Publications (1)

Publication Number Publication Date
GB1159806A true GB1159806A (en) 1969-07-30

Family

ID=10447149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4804165A Expired GB1159806A (en) 1965-11-12 1965-11-12 Improvements in or relating to Condition Responsive Transmitting Units

Country Status (1)

Country Link
GB (1) GB1159806A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5188058A (en) * 1975-01-31 1976-08-02
JPS5199559U (en) * 1975-02-07 1976-08-10
JPS51100557U (en) * 1975-02-10 1976-08-12
JPS51112371A (en) * 1975-03-27 1976-10-04 Honda Motor Co Ltd Lizuid level detector of float type variable resestance
EP0009992A1 (en) * 1978-10-10 1980-04-16 Bakelite Uk Limited Articles from resistance foils and their use
JPS5594528U (en) * 1979-12-28 1980-06-30
FR2455346A1 (en) * 1979-04-26 1980-11-21 Plessey Handel Investment Ag Liquid level sensor for e.g. petrol tank - has pivoted float connected to slider arm of volatile liq. resistance resistance variable resistor
US4939932A (en) * 1989-03-28 1990-07-10 Vdo Adolf Schindling Ag Level measuring device
DE19740344A1 (en) * 1997-09-13 1999-03-18 Mannesmann Vdo Ag Liquid level sensor, e.g. for fuel tank

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5188058A (en) * 1975-01-31 1976-08-02
JPS5199559U (en) * 1975-02-07 1976-08-10
JPS51100557U (en) * 1975-02-10 1976-08-12
JPS5422448Y2 (en) * 1975-02-10 1979-08-04
JPS51112371A (en) * 1975-03-27 1976-10-04 Honda Motor Co Ltd Lizuid level detector of float type variable resestance
EP0009992A1 (en) * 1978-10-10 1980-04-16 Bakelite Uk Limited Articles from resistance foils and their use
FR2455346A1 (en) * 1979-04-26 1980-11-21 Plessey Handel Investment Ag Liquid level sensor for e.g. petrol tank - has pivoted float connected to slider arm of volatile liq. resistance resistance variable resistor
JPS5594528U (en) * 1979-12-28 1980-06-30
JPS5812111Y2 (en) * 1979-12-28 1983-03-08 本田技研工業株式会社 Float type variable resistance liquid level gauge liquid level detection device
US4939932A (en) * 1989-03-28 1990-07-10 Vdo Adolf Schindling Ag Level measuring device
USRE34679E (en) * 1989-03-28 1994-08-02 Vdo Adolf Schindling Ag Level measuring device
DE19740344A1 (en) * 1997-09-13 1999-03-18 Mannesmann Vdo Ag Liquid level sensor, e.g. for fuel tank

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees