GB538963A - Improvements in or relating to piston rings and the like and the manufacture thereof - Google Patents
Improvements in or relating to piston rings and the like and the manufacture thereofInfo
- Publication number
- GB538963A GB538963A GB3921/40A GB392140A GB538963A GB 538963 A GB538963 A GB 538963A GB 3921/40 A GB3921/40 A GB 3921/40A GB 392140 A GB392140 A GB 392140A GB 538963 A GB538963 A GB 538963A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rings
- piston rings
- march
- group
- relating
- 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
-
- 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
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
538,963. Heating by electromagnetic induction. BUDD INDUCTION HEATING, Inc. March 1, 1940, No. 3921. Convention date, March 23, 1939. [Class 39 (iii)] [Also in Group II] To harden piston rings 10 they are stacked one above the other between metal end members 11, 12 and enclosed by a metal cylinder 13, and an induction head 15 such as is described in Specifications 503,130 and 505,073 inserted in the rings is supplied with alternating current of such intensity and frequency that the rings are rapidly heated from their inner surfaces to a distance less than their radial thickness. They are immediately quenched by liquid from a nozzle 20 and then removed, split and suitably finished as by grinding Specification 527,842, [Group II], also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US538963XA | 1939-03-23 | 1939-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB538963A true GB538963A (en) | 1941-08-22 |
Family
ID=21987279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3921/40A Expired GB538963A (en) | 1939-03-23 | 1940-03-01 | Improvements in or relating to piston rings and the like and the manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB538963A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2746820A (en) * | 1951-07-11 | 1956-05-22 | Perfect Circle Corp | Piston ring |
-
1940
- 1940-03-01 GB GB3921/40A patent/GB538963A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2746820A (en) * | 1951-07-11 | 1956-05-22 | Perfect Circle Corp | Piston ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB538963A (en) | Improvements in or relating to piston rings and the like and the manufacture thereof | |
| FR938083A (en) | Cathode or filament in the form of a coil and method of making | |
| GB481759A (en) | Improvements in or relating to surface hardening of hollow articles | |
| GB469383A (en) | Improvements in electric heating apparatus for use in the surface hardening of articles | |
| GB609718A (en) | Arrangements for the heating of metallic work-pieces by electromagnetic induction | |
| GB599372A (en) | Device for surface hardening cylindrical metallic elements of various diameters by means of high frequency induced currents | |
| GB474711A (en) | Self-inductance coil | |
| GB485753A (en) | Improvements relating to the surface hardening of hollow metal articles | |
| GB440468A (en) | Improvements in and relating to compound high frequency iron cores | |
| GB592512A (en) | Method of making inductance coils | |
| GB614936A (en) | Improvements in or relating to sliding-core inductance coils | |
| AU113740B2 (en) | Improvements in or relating to electromagnetic induction apparatus and method of making the same | |
| GB474857A (en) | Improvements in or relating to high-frequency iron cores | |
| GB440791A (en) | Inductance coils | |
| GB527842A (en) | Improvements in or relating to resilient ring elements and means for making same | |
| CH226972A (en) | Method and machine for the production of rings and coils from concrete iron for building purposes. | |
| GB513043A (en) | Methods and apparatus for the heat treatment of materials, especially rubber | |
| GB594032A (en) | Improved apparatus for heat treatment by electromagnetic induction of starter ring gears for automobiles or other similar annular members | |
| GB590341A (en) | Improvements in inductors for high frequency heating | |
| GB620730A (en) | Improvements in or relating to induction heating method and apparatus | |
| GB565328A (en) | Improvements in the manufacture of waisted bolts | |
| GB629083A (en) | Improvements in or relating to electromagnetic motors | |
| GB485752A (en) | Improvements relating to electric heat treatment of metal articles | |
| GB516080A (en) | Improvements in or relating to high frequency coils of variable inductance | |
| CA402211A (en) | Iron, steel and alloy production |