GB1159806A - Improvements in or relating to Condition Responsive Transmitting Units - Google Patents
Improvements in or relating to Condition Responsive Transmitting UnitsInfo
- 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
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).
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)
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 |
-
1965
- 1965-11-12 GB GB4804165A patent/GB1159806A/en not_active Expired
Cited By (12)
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 |