GB700503A - Improvements in or relating to the manufacture of edged tools in sheet form having hardened edges - Google Patents
Improvements in or relating to the manufacture of edged tools in sheet form having hardened edgesInfo
- Publication number
- GB700503A GB700503A GB3338349A GB3338349A GB700503A GB 700503 A GB700503 A GB 700503A GB 3338349 A GB3338349 A GB 3338349A GB 3338349 A GB3338349 A GB 3338349A GB 700503 A GB700503 A GB 700503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- edges
- strip
- fuse
- dec
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/60—Making other particular articles cutlery wares; garden tools or the like
- B21D53/64—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electroplating Methods And Accessories (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
700,503. Making cutting tools. ELECTRO METAL HARDENING CO. SOC. ANON. Dec. 28, 1950 [Dec. 30, 1949], No. 33383/49. Class 83 (2) In a method of making razor blades, saw blades and other edged tools one or more hard metals is electrolytically applied and fused with the body before the edges are finally ground, polished &c. Razor blades of strip steel 1, Fig. 1, with ground edges 1a, 1b are plated along the cutting edges with cobalt, tungsten or chromium and then subjected to H.F. heating to fuse the applied layer. The strip is first given a coatng 5 of a non-conducting material such as polythene or pyrotex and then drawn by electrode rollers through a plating bath containing anodes 3 conforming to the shape of the edges so as to obtain an even deposit. The non-conducting coating is then removed by scrapers and the strip passed through H.F. heating coils 13, Fig. 3, which heat the edges of the strip and fuse the applied layer of hard metal. In a modification the edges are heated by blasts of heated inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3338349A GB700503A (en) | 1949-12-30 | 1949-12-30 | Improvements in or relating to the manufacture of edged tools in sheet form having hardened edges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3338349A GB700503A (en) | 1949-12-30 | 1949-12-30 | Improvements in or relating to the manufacture of edged tools in sheet form having hardened edges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB700503A true GB700503A (en) | 1953-12-02 |
Family
ID=10352227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3338349A Expired GB700503A (en) | 1949-12-30 | 1949-12-30 | Improvements in or relating to the manufacture of edged tools in sheet form having hardened edges |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB700503A (en) |
-
1949
- 1949-12-30 GB GB3338349A patent/GB700503A/en not_active Expired
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