GB1144739A - Electrosharpening process - Google Patents
Electrosharpening processInfo
- Publication number
- GB1144739A GB1144739A GB217568A GB217568A GB1144739A GB 1144739 A GB1144739 A GB 1144739A GB 217568 A GB217568 A GB 217568A GB 217568 A GB217568 A GB 217568A GB 1144739 A GB1144739 A GB 1144739A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control electrode
- electro
- blade
- sharpening
- sharpened
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/08—Sharpening
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
1,144,739. Electro-sharpening. GILLETTE CO. Jan. 15, 1968 [Jan.17, 1967], No.2175/68. Heading C7B. A process of electro-sharpening, e. g. of razor blades, tools, knives, needles or electrical contacts, comprises making the object to be sharpened the anode in an electrolytic bath and positioning in said bath an electro-positive control electrode relative to the area of the object being sharpened so as to influence and control the current density in said area. The control electrode is preferably as electro-positive as the object to be sharpened, or more electro-positive than said object, e.g. by using a circuit in which connections from the positive pole of the source of current to the anode to be sharpened and the control electrode are separated by a variable resistor (8), Fig. 1 (not shown). The control electrode may be positioned parallel to the apex of the blade edge, e.g. at a distance of 0À01 - 0À05 inch therefrom, or elsewhere with relation to the blade to produce a desired shape of cutting edge. A holder for supporting a razor blade during said treatment is shown in which the blade is connected to the source of current by conductor 34 and the counter electrode 16 is positioned parallel to the blade edge supported between members 36, one of which serves to connect said electrode to the electric supply. For sharpening of points, e.g. needles or electrical contacts, the control electrode may comprise a small bared portion of a wire covered by a thick insulating portion. The control electrode may be of stainless steel or of platinum, and for sharpening a razor blade a circular stainless steel disc may be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60986267A | 1967-01-17 | 1967-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1144739A true GB1144739A (en) | 1969-03-05 |
Family
ID=24442650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB217568A Expired GB1144739A (en) | 1967-01-17 | 1968-01-15 | Electrosharpening process |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE709428A (en) |
DE (1) | DE1690565A1 (en) |
ES (1) | ES349380A1 (en) |
FR (1) | FR1556442A (en) |
GB (1) | GB1144739A (en) |
IL (1) | IL29283A (en) |
NL (1) | NL6800752A (en) |
SE (1) | SE341505B (en) |
-
1968
- 1968-01-09 IL IL2928368A patent/IL29283A/en unknown
- 1968-01-15 GB GB217568A patent/GB1144739A/en not_active Expired
- 1968-01-15 FR FR1556442D patent/FR1556442A/fr not_active Expired
- 1968-01-16 SE SE55768A patent/SE341505B/xx unknown
- 1968-01-16 DE DE19681690565 patent/DE1690565A1/en active Pending
- 1968-01-16 ES ES349380A patent/ES349380A1/en not_active Expired
- 1968-01-16 BE BE709428D patent/BE709428A/xx unknown
- 1968-01-17 NL NL6800752A patent/NL6800752A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE709428A (en) | 1968-07-16 |
DE1690565A1 (en) | 1971-05-27 |
FR1556442A (en) | 1969-02-07 |
NL6800752A (en) | 1968-07-18 |
IL29283A (en) | 1971-08-25 |
SE341505B (en) | 1971-12-27 |
ES349380A1 (en) | 1969-04-01 |
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