GB378543A - Improvements in or relating to fine-edged blades, tools and the like - Google Patents

Improvements in or relating to fine-edged blades, tools and the like

Info

Publication number
GB378543A
GB378543A GB14628/31A GB1462831A GB378543A GB 378543 A GB378543 A GB 378543A GB 14628/31 A GB14628/31 A GB 14628/31A GB 1462831 A GB1462831 A GB 1462831A GB 378543 A GB378543 A GB 378543A
Authority
GB
United Kingdom
Prior art keywords
fine
nitrogenizing
molybdenum
action
tools
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
GB14628/31A
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
Application filed by Individual filed Critical Individual
Publication of GB378543A publication Critical patent/GB378543A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/04—Treatment of selected surface areas, e.g. using masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • B26B21/58—Razor-blades characterised by the material
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • 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
    • Y10S76/00—Metal tools and implements, making
    • Y10S76/08—Razor blade manufacturing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Forests & Forestry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Scissors And Nippers (AREA)
  • Emergency Lowering Means (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Knives (AREA)

Abstract

378,543. Alloys ; hardening. FROST, T. H., 116, Riverway, Boston, U.S.A. May 18, 1931, No. 14628. Convention date, May 24, 1930. [Classes 72 and 82 (i).] Fine-edged blades for use in safety razors, pocketknives, surgeons' knives, cutlery, and edged tools, are made by treating an aluminium steel which may contain chromium or molybdenum, or tungsten, and which can be hardened by nitrogenizing with ammonia gas at a high temperature. Warping is prevented by protecting certain areas, such as 8, against the action of the gas. The alloy known as "Nitralloy" is preferred. The treated blade is given a final grinding. The preferred method of protection against the nitrogenizing action is to coat the metal with a paste of stannic oxide in water or glycerine. Alloys containing specified proportions of carbon, manganese, silicon, aluminium, chromium, sulphur, phosphorus, molybdenum, and iron are referred to.
GB14628/31A 1930-05-24 1931-05-18 Improvements in or relating to fine-edged blades, tools and the like Expired GB378543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US455366A US1827870A (en) 1930-05-24 1930-05-24 Fine edged blade

Publications (1)

Publication Number Publication Date
GB378543A true GB378543A (en) 1932-08-18

Family

ID=23808496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14628/31A Expired GB378543A (en) 1930-05-24 1931-05-18 Improvements in or relating to fine-edged blades, tools and the like

Country Status (3)

Country Link
US (1) US1827870A (en)
FR (1) FR717425A (en)
GB (1) GB378543A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623311A1 (en) * 1976-05-25 1977-12-08 Werkzeug Union Gmbh Dwu 5600 W GALVANIZED BLADE TOOL AND METHOD OF MANUFACTURING THESE
FR2436282A1 (en) * 1978-09-18 1980-04-11 Glaenzer Spicer Sa IMPROVED TULIP FOR A TRIPOD JOINT AND METHOD FOR THE PRODUCTION THEREOF

Also Published As

Publication number Publication date
US1827870A (en) 1931-10-20
FR717425A (en) 1932-01-08

Similar Documents

Publication Publication Date Title
GB1253187A (en)
GB378543A (en) Improvements in or relating to fine-edged blades, tools and the like
GB1279482A (en) A blank for razor blades, or razor blade strip
ES355521A1 (en) Improved Method for the Manufacture of Razor Blades and Like Tools
US2289081A (en) Hack saw blade
GB1104932A (en) Improvements in or relating to safety razor blades
GB874488A (en) Steel alloys
US3749568A (en) Steel suitable for razor blades
GB432386A (en) Method of protecting turbine blading
GB1097862A (en) Improvements in or relating to razor blades
GB1306260A (en)
GB496866A (en) Process for improving the working of metals by processes such as drawing, not involving the use of cutting tools
JPS56131847A (en) Anticorrosive abrasive material
GB381102A (en) Improvements in or relating to turbine blading
GB411321A (en) Improvements in or relating to molybdenum steels
GB379392A (en) Improvements in or relating to fine edged blades and method of making the same
GB437372A (en) Improvements in or relating to the manufacture of composite steel articles
GB400565A (en) Improvements in saw blades and method of making same
GB381851A (en) Improvements in and relating to turbine blades
GB787951A (en) Improvements in or relating to alloy steels
GB999713A (en) Improvements in or relating to steel strip for use in making razor blades
GB398180A (en) Improvements in and relating to treatment of metals and alloys to protect them from corrosion
GB886848A (en) Improvements in or relating to saw blades
GB397151A (en) Improvements in or relating to annealed steel sheets and to hacksaw blades made fromsuch sheets
GB269488A (en)