US1842541A - Method of and means for the prevention of corrosion - Google Patents

Method of and means for the prevention of corrosion Download PDF

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Publication number
US1842541A
US1842541A US174905A US17490527A US1842541A US 1842541 A US1842541 A US 1842541A US 174905 A US174905 A US 174905A US 17490527 A US17490527 A US 17490527A US 1842541 A US1842541 A US 1842541A
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United States
Prior art keywords
corrosion
protected
electrolyte
contact
negative
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Expired - Lifetime
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US174905A
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English (en)
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Cumberland Elliott
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Individual
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Individual
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S138/00—Pipes and tubular conduits
    • Y10S138/06—Corrosion

Definitions

  • the general object of this invention relates been found both in the case of marine and to an improved method of and means for the land turbines that stray currents generally prevention of corrosion in metals or metallic of very high potential are set up, the cause in articles which are, or are liable to be imsome cases being the impinging of the steam inersed in, or in contact with liquids capable on the turbine blades and such stray currents of acting as electrolytes. have also been found to cause corrosion.
  • Fig 1 shows i art s ti nal elevation stray currents, leaks the like, Tesllltlng how the invention can be applied to Water from the operatlon of electric or other mai d chmery- Fin".
  • 2 a diagrammatic plan view of the ap- As mstances of such causes I mav mention li ti t a marine tu bi nd condenser by way of example only that in the case of l t ships, corrosion has been found to be due to Referring to Fig.
  • anode bar 5 is buried in close proximity to the part of the main where corrosion is taking place and has the positive potential of the generator impressed thereon in a similar manner to that in the case of the internal anode.
  • resistances may be used in the leads of the generators, especially when several are used in order that the currents passing to the electrodes of the articles to be protected may be properly adjusted to eifectivelv prevent corrosion.
  • the negative lead includes the variable resistance 100 and the positive lead includes the variable resistance 101.
  • the main lighting or power circuit wires leading from the generators are indicated at 50 and 51.
  • the leak should occur at X in the positive leg 50 of the main circuit current would fiow through any conducting path passing from the leak to the article 1 to be protected, and through the wall of the article to the negative'connec tion and back to the generator.
  • Figure 2 shows in diagrammatic plan view the application of my invention to the protection of a condenser 9 from corrosion caused by stray currents from a marine turbine shown at 11, such currents being caused in some cases by steam issuing at high velocity from the turbine nozzles and impinging on the blades causing a difference of potential to be set up, the oil between the rotor shaft and its bearing acting as an insulator between said rotor and the stationary part of the turbine structure.
  • I provide copper gauze or other suitable brushes 6 either directly in contact with the shaft 7 or in contact with collector rings shown at 12 carried thereon and having electrical connection with anodes 8 supported on insulating members 13 wholly or partially submerged within the electrolyte in the condenser 9, the condenser body itself being maintained at negative potential by connection 14 with the turbine casing, alternatively electrical connection may be made between the turbine shaft and the casing or otherwise earthing the lead therefrom.
  • a ships lighting and power dynamo being the cause of corrosion I run leads if necessary through one or more suitable resistances from the positive pole of said dynamo to the anodes and from the negative pole to the article to be protected.
  • This invention may generally be applied to all metallic structures or the like which are or which are liable to be subjected to corrosive action of the types referred to, and which are liable to be immersed in or in contact with liquids capable of acting as electrolytes.
  • metallic structures or the like which are or which are liable to be subjected to corrosive action of the types referred to, and which are liable to be immersed in or in contact with liquids capable of acting as electrolytes.
  • Such articles I may mention for example bridges, reinforced ferro-concrete buildings, fluid conduits, floating docks, gasometers, piers and lock gates in additlon to those examples already given.
  • I claim 1 The method of preventing the destruction of metallic objects in contact with an electrolyte by electrolytic decomposition by electric currents from a current source comprising connecting the negative side of said current source to the object to be protected, providing an electrode adjacent the object to be protected and connecting the electrode to the positive side of said current source.
  • the method of preventin the destruction of hollow metallic objects 5y electrolytic decomposition by electric currents from a current source comprising connecting the negative side of said current source to the object to be protected and connecting the positive side of said current source to electrodes inside of and outside of the object to be protected.
  • the method of preventing the destruction of metallic objects in contact with an electrolyte by electrolytic decomposition by electric currents from current sources comprising ascertaining all of the sources of the corrosion producing currents, connecting all of the negative sides thereof to the article to be protected, providing electrodes adjacent the object to be protected and connecting all of the positive sides of the corrosion producingsonrces to said electrodes.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
US174905A 1926-06-15 1927-03-12 Method of and means for the prevention of corrosion Expired - Lifetime US1842541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1842541X 1926-06-15

Publications (1)

Publication Number Publication Date
US1842541A true US1842541A (en) 1932-01-26

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ID=10891788

Family Applications (1)

Application Number Title Priority Date Filing Date
US174905A Expired - Lifetime US1842541A (en) 1926-06-15 1927-03-12 Method of and means for the prevention of corrosion

Country Status (4)

Country Link
US (1) US1842541A (en, 2012)
BE (1) BE340855A (en, 2012)
DE (1) DE480996C (en, 2012)
FR (1) FR631946A (en, 2012)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146182A (en) * 1959-08-25 1964-08-25 Rolland C Sabins Electrolytic system
US3461051A (en) * 1966-02-18 1969-08-12 United States Steel Corp Method and apparatus for protecting walls of a metal vessel against corrosion
US3977956A (en) * 1974-05-07 1976-08-31 Caunned Aktiengesellschaft Corrosion-prevention system
US4502929A (en) * 1981-06-12 1985-03-05 Raychem Corporation Corrosion protection method
US4549949A (en) * 1984-06-07 1985-10-29 Outboard Marine Corporation Marine propulsion device including cathodic protection
US4990231A (en) * 1981-06-12 1991-02-05 Raychem Corporation Corrosion protection system
US5505826A (en) * 1994-11-30 1996-04-09 Haglin; Patrick G. Hydrophilic anode corrosion control system
WO1999016932A1 (en) * 1997-09-30 1999-04-08 Russell Larry L Method and apparatus for lead contamination control
US7186327B1 (en) 1997-09-30 2007-03-06 Russell Larry L Method and apparatus for scaling control and in-situ cathodic protection

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL219618A (en, 2012) * 1956-08-06
DE1149966B (de) * 1959-06-22 1963-06-06 Rolland Clifford Sabins Korrosionsschutzanlage

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146182A (en) * 1959-08-25 1964-08-25 Rolland C Sabins Electrolytic system
US3461051A (en) * 1966-02-18 1969-08-12 United States Steel Corp Method and apparatus for protecting walls of a metal vessel against corrosion
US3977956A (en) * 1974-05-07 1976-08-31 Caunned Aktiengesellschaft Corrosion-prevention system
US4502929A (en) * 1981-06-12 1985-03-05 Raychem Corporation Corrosion protection method
US4990231A (en) * 1981-06-12 1991-02-05 Raychem Corporation Corrosion protection system
US4549949A (en) * 1984-06-07 1985-10-29 Outboard Marine Corporation Marine propulsion device including cathodic protection
US5505826A (en) * 1994-11-30 1996-04-09 Haglin; Patrick G. Hydrophilic anode corrosion control system
WO1996018092A3 (en) * 1994-11-30 1996-09-19 Patrick G Haglin Hydrophilic anode corrosion control system
WO1999016932A1 (en) * 1997-09-30 1999-04-08 Russell Larry L Method and apparatus for lead contamination control
US6103097A (en) * 1997-09-30 2000-08-15 Russell; Larry L. Method and apparatus for lead contamination control
US6423208B1 (en) 1997-09-30 2002-07-23 Larry L. Russell Method and apparatus for lead contamination control
US7186327B1 (en) 1997-09-30 2007-03-06 Russell Larry L Method and apparatus for scaling control and in-situ cathodic protection

Also Published As

Publication number Publication date
DE480996C (de) 1929-08-12
BE340855A (en, 2012)
FR631946A (fr) 1927-12-29

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