GB190727301A - Improved Water Level Indicator. - Google Patents
Improved Water Level Indicator.Info
- Publication number
- GB190727301A GB190727301A GB190727301DA GB190727301A GB 190727301 A GB190727301 A GB 190727301A GB 190727301D A GB190727301D A GB 190727301DA GB 190727301 A GB190727301 A GB 190727301A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- arm
- coil
- circuit containing
- contact
- 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
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
27,301. Rittmeyer, F. Dec. 10. Water levels, indicating.-In apparatus for indicating water levels at a distance electrically, a float m in the water moves a contact-arm e and varies the length of a resistance f in a circuit containing a coil l of a differential galvanometer, the other coil of which is in a circuit containing an adjustable resistance h at the distant station. The circuit containing the resistance f, the line-wire a, and the coil is connected to the battery g in parallel with the circuit containing the resistance h, the coil l<1>, and the line-wire b. Variations in the resistance of the line-wires are thus eliminated. A contact-arm j, moved along the resistance h either automatically or by hand, indicates the liquid level on a scale o when the galvanometer needle points to zero. The arm j, Fig. 2, is moved by clock-work, which is controlled by electro-magnetic brakes r, r<1> in an auxiliary circuit containing the galvanometer needle and contacts p, p<1>. The arm is rotated in opposite directions through a differential gear w, y, according as the needle makes contact with one or the other of the contacts. The auxiliary circuit may be provided with a shunt circuit in order to prevent sparking at the contacts. The shunt circuit is completed through a contact upon an armature arm s. Specifications No. 9116, A.D. 1884, No. 4545, A.D. 1887, and No. 22,394, A.D. 1894, are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190727301T | 1907-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190727301A true GB190727301A (en) | 1908-06-25 |
Family
ID=32437310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190727301D Expired GB190727301A (en) | 1907-12-10 | 1907-12-10 | Improved Water Level Indicator. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190727301A (en) |
-
1907
- 1907-12-10 GB GB190727301D patent/GB190727301A/en not_active Expired
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