GB1023436A - Differential float device - Google Patents
Differential float deviceInfo
- Publication number
- GB1023436A GB1023436A GB5117463A GB5117463A GB1023436A GB 1023436 A GB1023436 A GB 1023436A GB 5117463 A GB5117463 A GB 5117463A GB 5117463 A GB5117463 A GB 5117463A GB 1023436 A GB1023436 A GB 1023436A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- tube
- weight
- immersed
- switches
- 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
-
- 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
-
- 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
- G01F23/0038—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 using buoyant probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
1,023,436. Magnetic switches. ASSOCIATED ENGINEERING & EQUIPMENT CO. Inc. Dec. 30, 1963.[few. 21, 1963], No. 51174/63. Heading H2B. A switch for testing specific gravity or the level of liquids comprises two weights 57, 58 suspended from opposite ends of a pivoted member 55 and of different densities such that, although of different sizes, they normally balance. Weight 57 moves in oil 61 in a tube 51 and has a magnet 59 which closes switch 75 when lowered, due, for example, to weight 58 becoming immersed in water. The device is enclosed in a cylindrical housing 22 secured on a tube 11 for lowering down a bore-hole, for example. Two such devices may be provided in tandem (Fig. 1, not shown), and their switch contacts arranged in series so that a circuit to a pump, for example, is not completed until both are immersed. By use of a relay and a resistor across the contacts of the upper switch (Fig. 7, not shown) it may be arranged that the pump circuit is maintained until both switches are opened.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26017963A | 1963-02-21 | 1963-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1023436A true GB1023436A (en) | 1966-03-23 |
Family
ID=22988103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5117463A Expired GB1023436A (en) | 1963-02-21 | 1963-12-30 | Differential float device |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE643679A (en) |
GB (1) | GB1023436A (en) |
NL (1) | NL303012A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112622564A (en) * | 2020-12-22 | 2021-04-09 | 宋清云 | Safety system and device for air circulation in automobile |
-
0
- NL NL303012D patent/NL303012A/xx unknown
-
1963
- 1963-12-30 GB GB5117463A patent/GB1023436A/en not_active Expired
-
1964
- 1964-02-12 BE BE643679D patent/BE643679A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112622564A (en) * | 2020-12-22 | 2021-04-09 | 宋清云 | Safety system and device for air circulation in automobile |
Also Published As
Publication number | Publication date |
---|---|
BE643679A (en) | 1964-08-12 |
NL303012A (en) |
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