US140390A - Improvement in processes of hardening edge tools - Google Patents
Improvement in processes of hardening edge tools Download PDFInfo
- Publication number
- US140390A US140390A US140390DA US140390A US 140390 A US140390 A US 140390A US 140390D A US140390D A US 140390DA US 140390 A US140390 A US 140390A
- Authority
- US
- United States
- Prior art keywords
- improvement
- processes
- edge tools
- hardening
- hardening edge
- 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 - Lifetime
Links
- 206010060708 Induration Diseases 0.000 description 2
- 241001646071 Prioneris Species 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/24—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for saw blades
-
- 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
- Y10T29/00—Metal working
- Y10T29/47—Burnishing
Definitions
- This process consists in holding the previously hardened and tempered blade with the part that is to be hardened against a revolving smooth-faced metallic wheel.
- the wheel revolving against the metal edge indurates it to such an extent that it will resist effectually the ordinary action of a file.
Description
1 UNITED STATES PATENT OFFICE.
LEVERETT W. STUART, or HAWLEY, PENNSYLVANIA, ASSIGNOR T0 GUSTAVUS AMES, OF ROCHESTER, NEW YORK.
IMPROVEMENT IN PROCESSES OF HARDENING EDGE TOOLS.
Specification forming part of Letters Patent No. 140,390, dated July 1, 1873; application filed June 27, 1872.
To all whom it may concern Be it known that I, LEVERETT W. STUART,
' of Hawley, in the county of Wayne and State of Pennsylvania, have invented a new Process of Hardening Edge Tools, of which the following is a specification The invention will first be fully described in connection with all that is necessary to a full understanding thereof, and then clearly pointed out in the claim.
After much thought and careful experiment, for the purpose of attaining some convenient Way of densifying and hardening the cuttingedge of edge tools, harvester-cutters, and sawteeth, I have discovered a process by which it may be done eflectuall y and with little labor and cost.
This process consists in holding the previously hardened and tempered blade with the part that is to be hardened against a revolving smooth-faced metallic wheel. The wheel revolving against the metal edge indurates it to such an extent that it will resist effectually the ordinary action of a file.
If a tool like a harvester-blade is to be operated upon, it is hardened and tempered first in the ordinary manner. The horizontal face of the edge is then held to the revolving wheel until the desired degree of hardness is obtained. On the other hand, if a saw-tooth is to be treated, I take the steel-pointed tooth,
and place the outer face that takes the wear and subject it to the same induration.
Having thus described my invention, what I claim as new, and desire to secure by Let ters Patent, is-
The process of hardening edge tools, by ap-
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US140390A true US140390A (en) | 1873-07-01 |
Family
ID=2209804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US140390D Expired - Lifetime US140390A (en) | Improvement in processes of hardening edge tools |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US140390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2818359A (en) * | 1954-03-01 | 1957-12-31 | Gen Motors Corp | Method of making flanged cylinder liners |
| US3226809A (en) * | 1962-08-17 | 1966-01-04 | Tech Integrale Sa | Method of manufacturing worm-and-nut devices |
-
0
- US US140390D patent/US140390A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2818359A (en) * | 1954-03-01 | 1957-12-31 | Gen Motors Corp | Method of making flanged cylinder liners |
| US3226809A (en) * | 1962-08-17 | 1966-01-04 | Tech Integrale Sa | Method of manufacturing worm-and-nut devices |
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