Report in the local time Düsseldorf from 20.01.2020

On December 18th, 2019, journalist Hamzi Ismail asked what significance the gallows-like object on Merowinger Straße, behind the Salzmann Building in Düsseldorf, has. What exactly is this object? When did it get there? What is the correct designation for the tubular structure?
 
An employee of Jagenberg Paper Systems GmbH, now based in Krefeld, was able to answer these questions. But see for yourself.