Gummiwerk Kraiburg Development Gmbh

Huels Aktiengesellschaft

Gummiwerke Kraiburg Elastik Beteiligungs Gmbh & Co.

Peter Schmidt

Julius Peter

Peter Michalkiewicz

Dieter Mahlke

Klaus Zur Nedden

Crosslinkable mixtures are made of recycled rubber granules, rubber and oil. The crosslinkable mixtures are made of recycled rubber granules mixed with rubber dissolved in oil. The crosslinkable mixtures can be press molded into molded bodies having good mechanical and elastic properties, since a virtually plastic flowing provides for optional bonding of the granule particles among each other during processing.

Crosslinkable mixtures of recycled rubber granules and rubber

Assemblies of resilient moldings are used as track crossings. A molding has a rubber surface layer which is bonded to a body formed from scrap rubber. In forming the molding, granular vulcanized rubber is mixed with a binder including crude rubber and a vulcanizing agent. The mixture is placed in a mold together with a crude rubber layer which also includes a vulcanizing agent. The molding is formed upon vulcanizing under heat and pressure.

Process for producing a railroad crossing means

The molded bodies (22, 28) of a track crossing construction are coated with hard material particles (27) at least in a layer close to the traffic-carrying surface so as to improve the traction properties of vehicle tires and to enhance the nonskid properties.

Track crossing installation, molded body for a track crossing

Elastic plates for level railroad crossings have rail-adjacent edges which are profiled in their vertical cross sections to provide the required interlock. The plates have a first pair of grooves in the top and the bottom of the plate running parallel to the rail and have a second pair of upper and lower parallel grooves in the top and the bottom of the plate running transverse to the rail. In each pair of grooves, the groove in the top of the plate is laterally offset with respect to a parallel groove in the bottom of the plate, and each pair of grooves forms an expansion and contraction crease therebetween. Pairs of grooves in the top and the bottom of the plate are spaced, so that the distances between individual expansion creases, or between expansion creases formed by groups of creases, are large relative to the distance between the grooves which constitute the expansion creases. The first and second pairs of grooves intersect one another and in order to prevent an aperture or opening from being formed in the plate at the points of intersection, an integral layer of material is provided at each intersection to seal between the upper and lower sides of the plates.

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Waldkraiburg, Germany

Peter Schmidt