Abstract: The invention relates to a method of producing wire mesh having relatively high elongation values and high pliability wherein the wire is not annealed until after having been welded up into the mesh.
Type:
Grant
Filed:
October 6, 1975
Date of Patent:
May 17, 1977
Assignee:
Firma Evg Entwicklungs-u Verwertungsgesellschaft
Abstract: The invention concerns a welding machine for electrically resistance welding together, to form a mesh, at their points of intersection in a mesh production plane, two crossed groups of parallel wires. The machine incorporates at least two pairs of opposed cooperating welding electrodes, one of said pairs being arranged on each side of the mesh production plane. A pair of transformers have their primary windings connected in series and each pair of said electrodes are connected to the secondary winding of one of the transformers in such a way that in operation the welding current will flow through the electrodes and through the secondary windings of the transformers in series.
Type:
Grant
Filed:
March 18, 1976
Date of Patent:
May 3, 1977
Assignee:
Firma Evg Entwicklungs-u Verwertungsgesellschaft
Inventors:
Hans Gott, Josef Ritter, Klaus Ritter, Gerhard Ritter, Gottfreid Zechner, Gerhard Schmidt
Abstract: The invention concerns a feed device for feeding rod or striplike material, the device having two or more feed members which are arranged to lie behind one another along a feed path of the material. Each of the feed members carries a plurality of grippers arranged at equal angular intervals around a central axis of the feed member and is connected with a gearing which imposes on the feed member a rotational motion about its axis and, simultaneously, a circular motion about a fixed axis parallel with its own axis. The arrangement is such that said rotational and circular motions are coordinated so that the grippers of each of said feed members describe a trochoidal path which includes a substantially straight-line section along the feed path.
Type:
Grant
Filed:
December 19, 1975
Date of Patent:
April 26, 1977
Assignee:
Firma Evg Entwicklungs-u Verwertungsgesellschaft
Inventors:
Klaus Ritter, Hans Gott, Gerhard Ritter, Josef Ritter