CARTRIDGE CASE PROCESS FOR THE CATALYTIC REMOVAL OF CARBON MONOXIDE UNBURNED HYDROCARBONS AND NITROGEN OXIDES

摘要

1446142 Cartridge case RHEINMETALL GmbH 18 Jan 1974 [26 Jan 1973] 2552/74 Heading F3A A base for a combustible cartridge case comprises a steel member 1 and a resilient obturator 2 tightly connected thereto. The obturator is connected to the member 1 by means of a snap fitting (shown); or by penetration of the material of the obturator into the holes of a perforated annular web (1b), Fig. 2 (not shown), extending from the member 1; or by stepped cuts, Fig. 3 (not shown), or by wedge cuts, Fig. 4 (not shown), the contact faces of which are stepped or serrated; or by shrinking; or by deposition by evaporation.