摘要:
A blind rivet made of plastic, the shank of the body has a first region located between the head and the foot end, and the first region has a reduced first wall thickness. Within the first region is located a second region with a second wall thickness further reduced as compared to the first region. The first and second regions are arranged such that, as a result of the rivet setting process, the wall of the shank forms a roll fold with an annular bead that is pressed axially against the blind side of the workpiece.
摘要:
3-Urea-pyridofurans and -pyridothiophenes are prepared by reacting appropriately substituted 3-amino-pyridofurans or -pyridothiophenes with isocyanates or isothiocyanates. The 3-urea-pyridofurans and -pyridothiophenes can be used as active ingredients in medicaments, particularly in medicaments for the treatment of acute and chronic inflammatory processes.
摘要:
A lengthwise cutting and grooving machine for webs of corrugated board comprises a grooving station, a lengthwise cutting and grooving station and a lengthwise cutting station which are disposed one after the other in the conveying direction of a web of corrugated board. The lengthwise cutting and grooving station comprises a pair of a grooving tool and a counterpart grooving tool cooperating therewith on the one hand and a pair of a cutter and a counterpart tool on the other hand.