first bag 9 as can be seen in fig9 in a lower section the continuous liner 14 is pressed from outside against the bearing structure 17 by means of an inflatable gasket 28 the upper end 29 of the folded continuous liner 14 is pressed against the bearing structure 17 by means of an o ring sealing in the process step in accordance with fig9 and 10 gas more particularly air is released from the inflatable gasket 28 so that the continuous liner 14 can by means of the gloves within the upper section 2 as shown by the arrow 31 be pulled downwards and inserted into the first bag 9 through the lower outlet 11 which is in axial alignment with the upper connection 12 a second bag 16 is therefore provided within the first bag 9 as can be seen directly in fig1 after the second bag 16 has been transferred into the first bag 9 the inflatable gasket is inflated again whereby the inflatable gasket 28 again presses from outside on the continuous liner 14 forcing it against the bearing structure 17 as a result of which contamination of an area above the inflatable gasket 28 can be reliably prevented in a next step of the process shown in fig1 the first bag 9 is filled with powder 32 below the lift mechanism 10 there are scales 33 which are connected with a control unit of the dosing device 34 in such a way that the.