Hoogovens Ijmuiden B.v.

Zimmermann & Jansen Gmbh

Jacobus A Rumphorst

Jacob Felthuis

A closure plate for hot blast slide valves of the type having a hollow ring of box-like cross section cooled by running water to whose inner circumference a body is attached by welding, which is formed by parallel plates and is likewise cooled by running water. The thickness of the body in axial direction is smaller than the axial length of the hollow ring, and the outer surfaces are coated to about the height of the front faces of the ring with refractory concrete, the coating being tied to these outer surfaces by anchoring means. The closure plate is characterized by the following features:

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Uitgeest, Netherlands

Jacobus A Rumphorst