Weitmann & Konrad Gmbh & Co.

Weitmann & Konrad Gmbh & Co. Kg

Alfred Keller

Heinz Weitmann

Gunther Cernea

Process and device for moistening a moving printed then thermally dried

An installation for the thermal drying of strips, sheets, etc., which are conveyed along a path over guide elements past dryer unit in a drying device. The installation has a cooling unit whose coolant is fed through suitable coolant lines to the guide elements in the drying zone and to the dryer units, from where the coolant is fed to a heat exchanger. The installation also has an air extractor to extract the air from the drying zone. In order to provide a space saving installation, the heat exchanger in the cooling unit is located in the vicinity of the air-extraction aperture of the air extractor, adjacent to the drying zone.

Installation for the thermal drying of strips, sheets, etc., of material

A process for the continuous measurement of the density of a liquid by means of an aerometer body swimming in the liquid is characterized by the feature that the liquid is allowed to flow periodically at an increased flow rate past the aerometer body in order to clean the same of foreign matter, gas bubbles or the like disturbing the measuring, with the measuring procedure being interrupted during this cleaning period. In an apparatus for performing this process, an aerometer body is surrounded in a measuring vessel by a partition wall at a small distance therefrom, and line is provided, through which liquid to be measured may be introduced at a relatively high flow rate into the space between the aerometer body and the partition wall in order to periodically clean the aerometer body.

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Leinfelden-Echterdingen, Germany

Alfred Keller