GB371853A - Improvements in liquid level indicators for reservoirs - Google Patents
Improvements in liquid level indicators for reservoirsInfo
- Publication number
- GB371853A GB371853A GB195131A GB195131A GB371853A GB 371853 A GB371853 A GB 371853A GB 195131 A GB195131 A GB 195131A GB 195131 A GB195131 A GB 195131A GB 371853 A GB371853 A GB 371853A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wire
- rack
- flexible
- spindle
- pointer
- 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
- G01F23/48—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 twisted spindles as transmission elements
- G01F23/50—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 twisted spindles as transmission elements using mechanically actuated indicating means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
371,853. Indicating liquid levels. FARFALLINI, I., 28, Via Aquila, Turin, Italy. Jan. 20, 1931, No. 1951. [Class 123 (i).] In a liquid level indicator of the type in which a flexible transmission is actuated by hand at the indicating point to an extent which is determined by the position of a float, the flexible transmission comprises a flexible wire surrounded by a helical coil of relatively large pitch, and then by the usual casing. In Fig. 1, a pointer 1<11> moves over a graduated dial, and its spindle is provided with a pinion 3 gearing with an annular-toothed rack 4 connected to a wire 5 which is attached at its further end to a sliding piston 8. The piston is guided in a tube 9 by a slot moving over a fixed pin 11 and is pressed outward by a spring 10. The wire 5 is tensioned between the springs 10, 12. The other end of the rack is connected to another flexible wire 13, and, in accordance with the invention, a helical coil 14<1> of relatively large pitch is interposed between the wire 13 and the flexible metal casing 14 in order to reduce friction. A similar coil 6<1> is arranged in the casing 6, and is preferably of smaller pitch, while the wire 5 may be of a material such as twisted catgut. The other end of the wire 13 is attached to a rack 15 and the wire is tensioned by a spring 16. The springs 12, 16 are each weaker than the spring 10. The rack 15 engages a pinion on a spindle 19 having a helical groove 19<1>, and passing through a float 22. As the float moves vertically due to variations in liquid level, it is also moved angularly, and thereby determines the amount of rotation which can be given before the stop 22<1> comes into contact with a projecting strip 21. This rotation is effected by pressing the knob 7, and its amount is indicated by the pointer 1<11>. In a modification, hand actuation of the flexible wire is effected bv a knob on the spindle of the indicator pointer, and in another modification, by means of a pawl' device which actuates a rack on an extension of the rack 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB195131A GB371853A (en) | 1931-01-20 | 1931-01-20 | Improvements in liquid level indicators for reservoirs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB195131A GB371853A (en) | 1931-01-20 | 1931-01-20 | Improvements in liquid level indicators for reservoirs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB371853A true GB371853A (en) | 1932-04-20 |
Family
ID=9730918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB195131A Expired GB371853A (en) | 1931-01-20 | 1931-01-20 | Improvements in liquid level indicators for reservoirs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB371853A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5429649B1 (en) * | 1970-06-02 | 1979-09-25 | ||
CN115177762A (en) * | 2022-07-21 | 2022-10-14 | 中国人民解放军空军军医大学 | Epidemic prevention sterilization and disinfection device |
-
1931
- 1931-01-20 GB GB195131A patent/GB371853A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5429649B1 (en) * | 1970-06-02 | 1979-09-25 | ||
CN115177762A (en) * | 2022-07-21 | 2022-10-14 | 中国人民解放军空军军医大学 | Epidemic prevention sterilization and disinfection device |
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