Abstract: A wedge push-in apparatus for a tensioning press for a bundle of wires, wherein the individual wires are intended to be anchored by means of wedges in an anchoring head. In order to push-in the wedges there is provided a wedge push-in plate which can be actuated by means of lengthwise displaceable push-in elements which engage at the wedge push-in plate. The push-in elements are arranged at a common, lengthwise displaceable support in such a manner that, with the support located in its starting position, the push-in elements do not protrude into the interior of the apparatus. Means are provided in order to bring the push-in elements into their work position for the purpose of actuating the wedge push-in plate.

Abstract: An upset head and a method of producing the same at a high-strength tension wire, wherein there is formed a supporting seating surface at the transition between the head and the wire. The maximum head diameter is located in the third of the height of the head situated closest to the seating surface. The head diameter at the free head end is equal to or smaller than the wire diameter and the head possesses the shape of a truncated cone at its end section.

Abstract: In an anchorage for tendons, such as strands, an anchorage body for anchoring tendons with wedges, having a central passage or bore for the tendon, at least one part or section of which passage widening conically from the inlet end to the outlet end in order to form a seat for wedges, said anchorage body presenting at the inlet end of said passage a projection integral with the remaining part of the body and having also a passage or bore for the tendon to form a holding means for a sealing element surrounding the portion of a tendon near the anchoring body.