GB909399A - Improvements in or relating to corrosion protection systems - Google Patents
Improvements in or relating to corrosion protection systemsInfo
- Publication number
- GB909399A GB909399A GB3636058A GB3636058A GB909399A GB 909399 A GB909399 A GB 909399A GB 3636058 A GB3636058 A GB 3636058A GB 3636058 A GB3636058 A GB 3636058A GB 909399 A GB909399 A GB 909399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- corrosion protection
- sources
- shaft
- circuit
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/04—Controlling or regulating desired parameters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
- Motor Or Generator Frames (AREA)
- Control Of Multiple Motors (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
909,399. Corrosion protection. COMPAGNIE DE CONSTRUCTION DE GROS MATERIEL ELECTRO-MECANIQUE. Nov. 12, 1958 [Dec. 27, 1957], No. 36360/58. Class 38 (4). In an arrangement as described in Specification 854,909 wherein electrolytic corrosion current is opposed by a similar opposing current, an automatic means is provided for measuring periodically the corrosion current, which measurement is utilized to adjust the opposing current. An electrochemical E.M.F. exists between a shaft 11 and the hull of a ship, the resistance of the electrolyte being symbolized by a resistor 3. By means of a brush 10 bearing on the shaft 11, an opposing current is applied from sources S 2 <SP>1</SP>, S 2 <SP>11</SP> connected across a potentiometer 4 whose slider 5 is adjusted by motors 16, 17 controlled from a voltage-sensitive relay 15 across which is connected a voltmeter 8. A shunted ammeter 6, 7 is connected into the circuit. S 3 is a reference source which is switched periodically into circuit by a switch 18 at the same time as the relay 15 is connected. In an alternative arrangement, the sources S 2 1, S 2 <SP>11</SP> are used additionally as the reference source.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR754794A FR76204E (en) | 1956-02-28 | 1957-12-27 | Device for the protection against corrosion of submerged or buried metal surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB909399A true GB909399A (en) | 1962-10-31 |
Family
ID=8705367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3636058A Expired GB909399A (en) | 1957-12-27 | 1958-11-12 | Improvements in or relating to corrosion protection systems |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE572430A (en) |
| DE (1) | DE1446351A1 (en) |
| GB (1) | GB909399A (en) |
| LU (1) | LU36552A1 (en) |
-
0
- LU LU36552D patent/LU36552A1/xx unknown
- BE BE572430D patent/BE572430A/xx unknown
-
1958
- 1958-11-12 GB GB3636058A patent/GB909399A/en not_active Expired
- 1958-12-19 DE DE19581446351 patent/DE1446351A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| LU36552A1 (en) | |
| BE572430A (en) | |
| DE1446351A1 (en) | 1969-04-03 |
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