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GB130102A - Improvements relating to Files and the like. - Google Patents

Improvements relating to Files and the like.

Info

Publication number
GB130102A
GB130102A GB1760/18A GB176018A GB130102A GB 130102 A GB130102 A GB 130102A GB 1760/18 A GB1760/18 A GB 1760/18A GB 176018 A GB176018 A GB 176018A GB 130102 A GB130102 A GB 130102A
Authority
GB
United Kingdom
Prior art keywords
crests
teeth
file
etching
copper
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
GB1760/18A
Inventor
Samuel Whyte
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.)
Individual
Original Assignee
Individual
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 NL5396D priority Critical patent/NL5396C/xx
Application filed by Individual filed Critical Individual
Priority to GB1760/18A priority patent/GB130102A/en
Priority to FR497911A priority patent/FR497911A/en
Priority to US29057619A priority patent/US1314450A/en
Publication of GB130102A publication Critical patent/GB130102A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23FNON-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
    • C23F1/00Etching metallic material by chemical means
    • C23F1/06Sharpening files

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

130,102. Whyte, S. Jan. 30, 1918. Etching.-Files or like tools having multiple cutting-teeth, which have become worn, are renovated by etching them, with or without the assistance of an electric current, after protecting the crests of the teeth by a metallic. deposit, for instance copper or mercury. In carrying out the operation, the file may be first cleaned by dilute nitric acid, chalk is then rubbed into the grooves, and the file dipped in a bath of copper sulphate until a film or copper is deposited on the crests of the teeth. After removal of the chalk the file may be etched in strong hydrochloric acid at 80‹ C. A coating of mercury may be deposited on the copper-coated crests by dipping the file in a dilute solution of mercurous nitrate, before the etching. Instead of strong hydrochloric acid, a bath of equal parts of hydrochloric acid, nitric acid and water may be used, or dilute nitric acid alone. Or dilute hydrochloric or nitric acid or mixtures thereof may be used and the etching assisted by an electric current, the crests of the teeth being protected by a coating of mercury as described.
GB1760/18A 1918-01-30 1918-01-30 Improvements relating to Files and the like. Expired GB130102A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL5396D NL5396C (en) 1918-01-30
GB1760/18A GB130102A (en) 1918-01-30 1918-01-30 Improvements relating to Files and the like.
FR497911A FR497911A (en) 1918-01-30 1919-04-07 Improvements to files and similar tools
US29057619A US1314450A (en) 1918-01-30 1919-04-16 Process of resharpening files.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1760/18A GB130102A (en) 1918-01-30 1918-01-30 Improvements relating to Files and the like.

Publications (1)

Publication Number Publication Date
GB130102A true GB130102A (en) 1919-07-30

Family

ID=32340708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1760/18A Expired GB130102A (en) 1918-01-30 1918-01-30 Improvements relating to Files and the like.

Country Status (4)

Country Link
US (1) US1314450A (en)
FR (1) FR497911A (en)
GB (1) GB130102A (en)
NL (1) NL5396C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498982A (en) * 1945-09-10 1950-02-28 Arthur Percy Warren Abrasive type cutting element and the manufacture thereof
US3045321A (en) * 1955-04-15 1962-07-24 Buckbee Mears Co Abrading devices and method of making them
US5616255A (en) * 1993-10-12 1997-04-01 Tumminaro, Jr.; Anthony J. Solution and process for chemically resharpening smoothing tools, forming tools, and cutting tools

Also Published As

Publication number Publication date
NL5396C (en)
US1314450A (en) 1919-08-26
FR497911A (en) 1919-12-20

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