Method and device for installing cables in ducts using a pressurized fluid, a fluid being applied which, under the operational pressure and operational temperature applied during the installation, is in a liquid state and which, under the ambient pressure and ambient temperature prevailing at the location of the installation, is in gaseous state. A feed apparatus for an additive is provided, and the pressure in the apparatuses for washing tableware can be set as a function of the metering of the additive in the feed apparatus. At least one of the bus bars is tin-plated and at the weld the bus bars are joined through a tin-plating layer. The methods of the invention are particularly useful for providing highly branched PVC graft copolymers. The first and second crank systems are respectively coupled to the side wall assembly.