GB649175A - Improvements relating to apparatus for controlling the supply of current to electro-plating vats and the like - Google Patents

Improvements relating to apparatus for controlling the supply of current to electro-plating vats and the like

Info

Publication number
GB649175A
GB649175A GB1816448A GB1816448A GB649175A GB 649175 A GB649175 A GB 649175A GB 1816448 A GB1816448 A GB 1816448A GB 1816448 A GB1816448 A GB 1816448A GB 649175 A GB649175 A GB 649175A
Authority
GB
United Kingdom
Prior art keywords
vat
voltage
current
supply
regulator
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
Application number
GB1816448A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to NL666608354A priority Critical patent/NL147027B/en
Application filed by Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB1816448A priority patent/GB649175A/en
Priority to FR989422D priority patent/FR989422A/en
Publication of GB649175A publication Critical patent/GB649175A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/12—Process control or regulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rectifiers (AREA)

Abstract

649,175. Automatic current control systems. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., STEVENS, S. A., and DUCKITT, H. July 6, 1948, No. 18164. [Class 38 (iv)] The voltage applied to an electro-plating vat rises in accordance with the vat current so as to maintain a constant current density over the surface of the work in the vat. The vat 1, Fig. 2, is supplied from a rectifier 10 connected by a transformer 6 and a voltage regulator 2 to a three-phase supply. The regulator is controlled by a relay 15, one coil 19 of which is energized by a voltage proportional to vat current, obtained from a current transformer 24; added to a reference voltage obtained from the supply mains via transformer 22; and opposed by a voltage proportional to the vat voltage, obtained from the output of the regulator across conductors 3, 4. The relay winding 20 connected between one phase and neutral of the supply provides a reference so that according to the resultant current in winding 19 one contact or the other will be closed if the vat voltage is greater or less than the sum of the other two voltages. In a modification, Fig. 3, a D.C. relay 26 is similarly energized by the rectified output of current transformers 37 added to the reference voltage of batteries 39, and opposed by the voltage across the vat terminals. Specification 629,895 is referred to.
GB1816448A 1948-07-06 1948-07-06 Improvements relating to apparatus for controlling the supply of current to electro-plating vats and the like Expired GB649175A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL666608354A NL147027B (en) 1948-07-06 PROCEDURE FOR MANUFACTURE OF FILTER MATERIAL FOR TOBACCO PRODUCTS, AS WELL AS FILTER BODY MADE FROM THIS MATERIAL.
GB1816448A GB649175A (en) 1948-07-06 1948-07-06 Improvements relating to apparatus for controlling the supply of current to electro-plating vats and the like
FR989422D FR989422A (en) 1948-07-06 1949-06-22 Apparatus for controlling the electric current supply to electrolytic coating tanks and for similar applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1816448A GB649175A (en) 1948-07-06 1948-07-06 Improvements relating to apparatus for controlling the supply of current to electro-plating vats and the like

Publications (1)

Publication Number Publication Date
GB649175A true GB649175A (en) 1951-01-17

Family

ID=10107749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1816448A Expired GB649175A (en) 1948-07-06 1948-07-06 Improvements relating to apparatus for controlling the supply of current to electro-plating vats and the like

Country Status (3)

Country Link
FR (1) FR989422A (en)
GB (1) GB649175A (en)
NL (1) NL147027B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329592A (en) * 1963-08-30 1967-07-04 Reynolds Metals Co Method of and apparatus for controlling aluminum reduction pots

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329592A (en) * 1963-08-30 1967-07-04 Reynolds Metals Co Method of and apparatus for controlling aluminum reduction pots

Also Published As

Publication number Publication date
FR989422A (en) 1951-09-10
NL147027B (en)

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