| 摘要 |
<p>The continuous strip or web of material is drawn off a magazine as in a photo-printing machine. The strip is fed by two pairs of transport rollers spaced along the feed path. A deflector roller is located between the pairs of transport rollers and is movable between an operative position and an inoperative position to vary the strip path length between the pairs of transport rollers, and thus to vary the length of material cut off by a shearing device positioned adjacent the upstream pair of transport rollers.</p> |
