Group Company History
Flachglas AG
The cooling lehr of a Libbey-Owens machine at DELOG in Gelsenkirchen.
Flachglas AG
DELOG AG and DETAG AG1825 - 1970
- DETAG AG
- DELOG AG
-
1825
Foundation of “Glasfabrik Crengeldanz”
The founders of the Glasfabrik Crengeldanz: On the right, Gustav Müllensiefen (1799 - 1874) and on the left, Theodor Müllensiefen (1802 – 1879). -
1925
Fourcault-process
Modell of a flat glass drawing machine from Fourcault. -
1925
DELOG AG
Glass for windows from Gelsenkirchen became famous as „DELOG-Glas“. -
1927
First production
The 65 m long cooling lehr of the Libbey-Owens drawing machine at DELOG site in Gelsenkirchen. -
1932
DETAG (Deutsche Tafelglas AG)
Dr. Otto Seeling (1891 – 1955) was substantially involved in the foundation of the DETAG AG. -
1949
Laminating in Gelsenkirchen
Production of laminated glass. -
1952
Fourcault furnace
Fourcault-machine with a drawing chamber of seven meters. -
1963
Insulated Glass
-
1964
Wesel plant
DELOG plant in Wesel. -
1968
DELOG expanding
Aerial view of the Gelsenkirchen plant in 1960.
