| 摘要 |
<p>REINFORCED STRUCTURES Apparatus for and method of manufacturing tyre breaker fabric comprising an elongated sheet of parallel closely spaced cords formed from a single cord laid in zig-zag fashion such that the edges of the sheet are formed by a series of folded cord edges. The apparatus comprises a cord laying head for laying a single cord in zig-zag fashion between a pair of spaced-apart edge forming units each comprising a holding pin engageable with a folded cord edge and a pincher head engageable around the pin to crimp the folded cord edge. A collector and holding unit collects the zig-zag cord assembly so formed and is operable to feed each traverse of cord in sequence to a device for applying elastomer to the cord assembly. Preferably the cord assembly is formed of steel cord and magnetic means is provided for transferring each cord traverse of the cord assembly from the forming units to the collector and holding unit and for subsequently feeding each cord traverse to the elastomer applying device. The edge forming units are relatively movable to adjust the initial spacing therebetween to produce a fabric having the desired width and also to vary the length of successive cord traverses to produce a fabric having the desired bias angle. WAB 889</p> |
