| 摘要 |
A screw cap for a spirit burner 10 consists of a screw ring 36 with an edge flange 34 against which a plate 32 is kept abutting by means of a sealing ring 30 of an elastic material inlaid in the screw ring. When the screw ring and the plate are removed, the screw ring with its edge flange may be used as a slow combustion ring in a manner known per se. <IMAGE> |
