GB556062A - Improved spark plug - Google Patents
Improved spark plugInfo
- Publication number
- GB556062A GB556062A GB10124/42A GB1012442A GB556062A GB 556062 A GB556062 A GB 556062A GB 10124/42 A GB10124/42 A GB 10124/42A GB 1012442 A GB1012442 A GB 1012442A GB 556062 A GB556062 A GB 556062A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- seal
- glass
- pellet
- insulator
- 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
-
- 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
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/34—Sparking plugs characterised by features of the electrodes or insulation characterised by the mounting of electrodes in insulation, e.g. by embedding
Landscapes
- Spark Plugs (AREA)
Abstract
556,062. Sparking-plugs. GENERAL MOTORS CORPORATION. July 21, 1942, No. 10124. Convention date, Sept. 29, 1941. Addition to 494,701. [Class 7 (iv)] [Also in Groups XXIII and XXXVI] In a plug having a central electrode in two parts 12, 20 with a conductive glass seal between them bonded to the inner surface of the insulator 4, the lower electrode part 12 rests on a shoulder 10 in the bore of the insulator and is approximately of equal length and breadth. As shown, the part 12 is formed with a flange 14 having slots 16 at right angles to each other to grip the glass seal. The latter may comprise a pellet 18a of borosilicate glass mixed with copper or graphite, and a second pellet, forming the seal 22a, of a lead borosilicate glass mixed with copper. In assembling, the glass is softened by heating and pressure is applied to the part 20. The part 12 may be of a nickel alloy, with or without a copper core.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US556062XA | 1941-09-29 | 1941-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB556062A true GB556062A (en) | 1943-09-17 |
Family
ID=21998980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10124/42A Expired GB556062A (en) | 1941-09-29 | 1942-07-21 | Improved spark plug |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB556062A (en) |
-
1942
- 1942-07-21 GB GB10124/42A patent/GB556062A/en not_active Expired
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