GB717166A - Improvements in or relating to the manufacture of foraminated metal screens - Google Patents

Improvements in or relating to the manufacture of foraminated metal screens

Info

Publication number
GB717166A
GB717166A GB14473/51A GB1447351A GB717166A GB 717166 A GB717166 A GB 717166A GB 14473/51 A GB14473/51 A GB 14473/51A GB 1447351 A GB1447351 A GB 1447351A GB 717166 A GB717166 A GB 717166A
Authority
GB
United Kingdom
Prior art keywords
etching
june
nitric acid
electric current
metal screens
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
GB14473/51A
Inventor
Herbert Edward Holman
Leslie James White
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 US2732288D priority Critical patent/US2732288A/en
Priority to NL94438D priority patent/NL94438C/xx
Priority to NLAANVRAGE7702449,A priority patent/NL170242B/en
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB14473/51A priority patent/GB717166A/en
Priority to DEE5611A priority patent/DE1043011B/en
Priority to FR1062077D priority patent/FR1062077A/en
Publication of GB717166A publication Critical patent/GB717166A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • 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
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/02—Etching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture
    • H01J2893/0024—Planar grids
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12361—All metal or with adjacent metals having aperture or cut
    • Y10T428/12368—Struck-out portion type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • ing And Chemical Polishing (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

717,166. Etching. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 10, 1952 [June 19, 1951], No. 14473/51. Class 100 (2). [Also in Group XXII] In a method of making perforated metal screens a member 1, Fig 1, having ribs 3 continuous with thinner areas 4 is intermittently etched until the thinner areas 4 are perforated. A silver screen is made by e'ectrodepositing a member 1 on a grooved copper matrix 2 and repeatedly etching the member 1 in a mixture of concentrated sulphuric and nitric acid, followed by repeated washing and drying. In another method the member 1 is made the cathode in an etching solution of nitric acid which renders the surface passive, the passivity being removed by passing intermittent pulses of electric current. In another method the member 1 is etched by electrolysis in a silver cyanide bath containing excess cyanide. Intermittent passage of electric current automatical'y results from the member becoming alternately inhibited and uninhibited.
GB14473/51A 1951-06-19 1951-06-19 Improvements in or relating to the manufacture of foraminated metal screens Expired GB717166A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US2732288D US2732288A (en) 1951-06-19 Manufacture of metal mesh screens
NL94438D NL94438C (en) 1951-06-19
NLAANVRAGE7702449,A NL170242B (en) 1951-06-19 METHOD FOR DECORATING CYLINDRICAL BODIES.
GB14473/51A GB717166A (en) 1951-06-19 1951-06-19 Improvements in or relating to the manufacture of foraminated metal screens
DEE5611A DE1043011B (en) 1951-06-19 1952-06-13 Process for the production of metal mesh networks
FR1062077D FR1062077A (en) 1951-06-19 1952-06-16 Manufacturing process for wire mesh screens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14473/51A GB717166A (en) 1951-06-19 1951-06-19 Improvements in or relating to the manufacture of foraminated metal screens

Publications (1)

Publication Number Publication Date
GB717166A true GB717166A (en) 1954-10-20

Family

ID=10041821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14473/51A Expired GB717166A (en) 1951-06-19 1951-06-19 Improvements in or relating to the manufacture of foraminated metal screens

Country Status (5)

Country Link
US (1) US2732288A (en)
DE (1) DE1043011B (en)
FR (1) FR1062077A (en)
GB (1) GB717166A (en)
NL (2) NL170242B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933437A (en) * 1956-05-29 1960-04-19 Bell Telephone Labor Inc Chemical lapping method
US3155460A (en) * 1960-05-20 1964-11-03 Norman B Mears Fine mesh screens
US3271488A (en) * 1961-11-21 1966-09-06 Itt Method of making masks for vapor deposition of electrodes
US4362595A (en) * 1980-05-19 1982-12-07 The Boeing Company Screen fabrication by hand chemical blanking
AU4038989A (en) * 1988-07-18 1990-02-19 Robert H. Bendig Jr. Snail repellant material and plant stand of such material
CN102560493B (en) * 2012-01-18 2013-10-30 电子科技大学 Method for preparing silicon nanowire array

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US490816A (en) * 1893-01-31 Method of cleansing silver
US532394A (en) * 1895-01-08 rawson
US1534709A (en) * 1924-05-17 1925-04-21 Francis A Holt Method of conducting electrolytic operations
DE619465C (en) * 1933-05-10 1935-10-01 Telefunken Gmbh Process for the production of perforated electrodes for electrical discharge vessels
DE630934C (en) * 1933-06-23 1936-06-09 Druidenau Eismaschinen Und Kue Process for the production of a tarnish-resistant, invisible surface protective layer on silver or silver alloys
US2115855A (en) * 1935-05-23 1938-05-03 Emi Ltd Cathode ray tube
US2166366A (en) * 1935-11-30 1939-07-18 Edward O Norris Inc Means and method of producing metallic screens
US2226384A (en) * 1938-12-14 1940-12-24 Edward O Norris Inc Process of electrolytically producing foraminous sheets
US2314818A (en) * 1939-04-29 1943-03-23 Carnegie Illinois Steel Corp Surface treatment of tinned material
DE715515C (en) * 1940-04-27 1942-01-03 Richard Beck Process for anodic pretreatment previously degreased metal surfaces in the usual way
US2434286A (en) * 1943-08-12 1948-01-13 Bell Telephone Labor Inc Method of forming a point at the end of a wire
US2565623A (en) * 1949-03-30 1951-08-28 Rca Corp Method of making grid structures
US2699382A (en) * 1951-02-14 1955-01-11 Aluminum Walzwerke Singen G M Method of etching aluminum foils

Also Published As

Publication number Publication date
NL94438C (en)
DE1043011B (en) 1958-11-06
FR1062077A (en) 1954-04-20
NL170242B (en)
US2732288A (en) 1956-01-24

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