GB1233799A - - Google Patents
Info
- Publication number
- GB1233799A GB1233799A GB1233799DA GB1233799A GB 1233799 A GB1233799 A GB 1233799A GB 1233799D A GB1233799D A GB 1233799DA GB 1233799 A GB1233799 A GB 1233799A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnet
- armature
- extension
- rod
- movable
- 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
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
-
- 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
- G01F23/56—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 elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
1,233,799. Liquid level indication. W. BOURS [trading as J G. MERCKENS K.G.], Oct. 30, 1968 [Oct.31, 1967], No.51534/68. Heading G1H. Also in Division H1] A float operated movable magnet switch has an armature on an extension of the movable magnet member and a testing magnet which can be used to act on the armature to cause the movable member to actuate the switch. As shown, the float 4 is mounted on a rod 5 which has a magnet 10 at its upper end to act upon magnetic contact units 12- outside a non-magnetic tube 7 into which the rod 5 extends. A stop 19 on the rod 5 engages a guide disc 11 on the bottom of the tube 7 to limit downward movement of the float 4 and magnet 10. Above the magnet 10 the rod 5 has an extension 9 which carries an armature 15 within an extension 8 of the tube shown. The armature 15 may be of soft iron or a permanent magnet and is movable by an external testing magnet 16 to test the switch operation. As shown an axially magnetized annular permanent magnet 16 is the testing permanent magnet and is mounted on the bell-shaped end of a cap 18, which may be made from plastics material, of such dimensions that the magnet 16 can be moved beyond the armature 15 when the stop 19 is in engagement with the disc 11, to a position in which it no longer influences the armature 15. In an alternative arrangement Fig. 2 (not shown) the testing magnet is an electromagnet secured to the outside of the tube extension 8 and energizable in either direction to influence a permanent magnet armature on the float rod extension. A movable electromagnet may also be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM0060423 | 1967-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1233799A true GB1233799A (en) | 1971-05-26 |
Family
ID=7309825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1233799D Expired GB1233799A (en) | 1967-10-31 | 1968-10-30 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1233799A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4871741A (en) * | 1971-12-28 | 1973-09-28 |
-
1968
- 1968-10-30 GB GB1233799D patent/GB1233799A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4871741A (en) * | 1971-12-28 | 1973-09-28 | ||
JPS531214B2 (en) * | 1971-12-28 | 1978-01-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3051805A (en) | Electric switch control means | |
US4243899A (en) | Linear motor with ring magnet and non-magnetizable end caps | |
GB1092725A (en) | Improvements in electrical switches | |
GB1479503A (en) | Magnetic holding means for an electric switching device | |
GB1140094A (en) | A float switch | |
US3198902A (en) | Proximity magnetic reed switch assembly | |
GB1106690A (en) | Improvements in or relating to detection apparatus | |
FR2365873A1 (en) | Float controlled level limit switch - has float which operates contact, with weight partly compensated by permanent magnets | |
GB1233799A (en) | ||
GB1008388A (en) | Magnetic liquid-level-control device | |
GB1200077A (en) | Apparatus for indicating liquid level or for providing an alarm or control function in dependence thereon | |
GB1236356A (en) | An improved control mechanism | |
GB1239322A (en) | ||
GB1361603A (en) | Liquid level detection devices | |
SU500407A1 (en) | Limit position indicator | |
GB1211195A (en) | Improvements in or relating to liquid level detection devices | |
GB1173035A (en) | Improvements in Magnetic Switches | |
GB1116040A (en) | Improvements in or relating to electrical position responsive apparatus | |
GB1159276A (en) | Magnetic Reed Contact Device | |
GB976743A (en) | Improvements in or relating to a magnetically operable electric switch | |
GB1136234A (en) | Improvements in or relating to electrical switch assemblies for use with liquid containers | |
US3178703A (en) | Electromagnetically actuated optical signalling device | |
US3218521A (en) | Instrument type relay | |
GB1295833A (en) | ||
GB548466A (en) | Means for operating an electric switch or other movable device through a partition, wall or the like |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |