Werkwijze en inrichting voor het op een buis aanbrengen van een omgezet deel

Abstract not available for NL 1016745 (C2)

Foundation, and also method for its production

Foundation, and method for the production of such a foundation. It is proposed that it be based on prefabricated concrete elements. The elements consist of base elements (2) and end elements (4). Each element is provided with two sockets for receiving pretensioning cables (6), which sockets are situated at a distance from each other, viewed in...

Inrichting en werkwijze voor het op een gesloten hol profiel aanbrengen van een verjonging

The tool (1) has a cylindrical collar (2) with a flange (11). A roller assembly (5 to 7) is clamped between an end plate (3) and the flange (11). The three rollers (6) are positioned around the center line at 120 degree intervals. The position of the rollers with respect to the center line is controlled by spiral grooves (9) and the angular...