GB914915A - - Google Patents
Info
- Publication number
- GB914915A GB914915A GB914915DA GB914915A GB 914915 A GB914915 A GB 914915A GB 914915D A GB914915D A GB 914915DA GB 914915 A GB914915 A GB 914915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shell
- insulator
- upper portion
- crimping
- die
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
- H01T21/02—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Spark Plugs (AREA)
Abstract
914,915. Making sparking plugs; jointing by stamping. GENERAL MOTORS CORPORATION. Oct. 27, 1961 [Nov. 17, 1960], No. 38519/61. Classes 83 (2) and 83 (4). A method of sealing an insulator in a metal shell, e.g. in the manufacture of igniter plugs for internal combustion engines and turbines comprises inserting the ceramic insulator 20 in the metal shell 10, cold crimping the upper portion of the shell by means of a die 28, Fig. 2, to obtain a partial seal between the insulator and the shell, heating only the upper portion of the shell from a source of electric power 32, Fig. 3, and hot crimping said upper portion using a die 30 to obtain a positive seal between the insulator and the shell. The insulator seats on a sealing gasket 22 and an upper gasket 24 is fitted between the tapered upper end of the insulator and the shell. During the crimping operation the shell is held in a work-holder 26. Finally, the crimped portion 34 of the shell is machined so that its upper surface is parallel to the lower surface of the shell and a metal shielding barrel 36, Fig. 4, is welded to said machined surface.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB914915A true GB914915A (en) |
Family
ID=1753480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB914915D Active GB914915A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB914915A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477714A (en) * | 1982-02-02 | 1984-10-16 | Ina Walzlager Schaeffler Kg | Method of leak proof attachment of a flange-type sheet metal element in the bore of a valve tappet |
| US4546529A (en) * | 1983-01-20 | 1985-10-15 | Estee Lauder Inc. | Method of fabricating container with metal skin |
| US4651397A (en) * | 1983-01-20 | 1987-03-24 | Estee Lauder Inc. | Apparatus for fabricating a container with metal skin |
| US9972978B2 (en) | 2015-06-15 | 2018-05-15 | Federal-Mogul Ignition Company | Spark plug gasket and method of attaching the same |
-
0
- GB GB914915D patent/GB914915A/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477714A (en) * | 1982-02-02 | 1984-10-16 | Ina Walzlager Schaeffler Kg | Method of leak proof attachment of a flange-type sheet metal element in the bore of a valve tappet |
| US4546529A (en) * | 1983-01-20 | 1985-10-15 | Estee Lauder Inc. | Method of fabricating container with metal skin |
| US4651397A (en) * | 1983-01-20 | 1987-03-24 | Estee Lauder Inc. | Apparatus for fabricating a container with metal skin |
| US9972978B2 (en) | 2015-06-15 | 2018-05-15 | Federal-Mogul Ignition Company | Spark plug gasket and method of attaching the same |
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