GB870442A - Apparatus for electrolytically manufacturing matrices for phonograph records - Google Patents

Apparatus for electrolytically manufacturing matrices for phonograph records

Info

Publication number
GB870442A
GB870442A GB228460A GB228460A GB870442A GB 870442 A GB870442 A GB 870442A GB 228460 A GB228460 A GB 228460A GB 228460 A GB228460 A GB 228460A GB 870442 A GB870442 A GB 870442A
Authority
GB
United Kingdom
Prior art keywords
matrix
anode
phonograph records
electrolytically
matrices
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
GB228460A
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.)
C N Rood N V
Original Assignee
C N Rood N V
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
Application filed by C N Rood N V filed Critical C N Rood N V
Publication of GB870442A publication Critical patent/GB870442A/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
    • C25D1/00—Electroforming
    • C25D1/10—Moulds; Masks; Masterforms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

870,442. Electrolysis. ROOD N.V., C. N. Jan. 21, 1960 [Jan. 23, 1959], No. 2284/60. Class 41. An apparatus for electrolytically manufaoturing matrices for phonograph records comprises a vessel 1 for the electrolyte 2, a holder 3 for a matrix 4 and an anode 6 both below the level 5 of the electrolyte, the holder 3 being secured to a shaft 7 which is rotatably supported above the level 5 and is so inclined relatively to the surface that the matrix 4 is only slightly more than half submerged and that its centre 10 lies nearer the plane of the anode 6 than the most deeply submerged point 11 on its circumference. The surface of the anode facing the matrix may be convex to augment the plating effect due to the inclined shaft 7, which is mounted in bearings 8, 9 on a lever 12 pivoted at 13 to the vessel 1.
GB228460A 1959-01-23 1960-01-21 Apparatus for electrolytically manufacturing matrices for phonograph records Expired GB870442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL235384 1959-01-23

Publications (1)

Publication Number Publication Date
GB870442A true GB870442A (en) 1961-06-14

Family

ID=19751532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB228460A Expired GB870442A (en) 1959-01-23 1960-01-21 Apparatus for electrolytically manufacturing matrices for phonograph records

Country Status (4)

Country Link
DE (1) DE1113316B (en)
FR (1) FR1245358A (en)
GB (1) GB870442A (en)
NL (1) NL96774C (en)

Also Published As

Publication number Publication date
NL96774C (en)
DE1113316B (en) 1961-08-31
FR1245358A (en) 1960-11-04

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