Abstract: A method and apparatus for removing moisture from a drying gas serving for the drying of solids, in particular granular plastics (10), which gas is dried in an adsorption drying agent after passing through the substance, then heated and finally conducted again through the substance to be dried. A first bed (32a) of drying agent in which the drying agent is utilized until complete saturation is connected in series with a following second bed (32b) of drying agent in which the drying agent is utilized only up to partial saturation. Behind the second bed (32b) of drying agent, a partial stream of the drying gas is conducted through a third bed (32c) of drying agent which has been regenerated in the meantime, while the other partial stream is conducted into the drying container 12, bypassing the third bed (32c) of drying agent. A fourth bed (32d) of drying agent is regenerated in each case. The four beds of drying agent can be exchanged for each other.

Abstract: Device for the automatic filling of battery cells with water comprises a filling cup (10) to be inserted into a battery cell and provided with a connection hose (20) for the water supply as well as a valve actuated by a float (62) fitted to a single centering guide rod (56) for easy movement and not susceptible to clogging up, the rod extending through an opening (58) in the bottom (60) of the cup housing (12) and hinged at its upper end to an amplifying lever (54) for the transmission of the float movement to the valve body (46), so that even in the remote possibility of heavy movement of the float guide, the lifting force of the float (62) is sufficient to actuate the valve.