| 摘要 |
<p>In a non-vulcanised state formation is from sections of parallel twisted filaments are behind the other across the band, each section having filaments at a different angle to the length of the band the varying angles being obtained by distortion, the fabric being covered with several overlapping layers adhering to it and placed so as to act in opposition to the tension caused by the torsion. Sections of fabric resistant to tension in the warp direction may be placed on the distorted sections of fabric at an angle so that the distortions become fixed. They are preferably impregnated with vulcanised rubber.</p> |
