| 摘要 |
<p>A trough (1) can be used, slightly wider than a standard-width paper roll, while its length is more than twice the diameter of such a roll (11). Halfway along it and close to the bottom is a hold-down bar (5) for the unrolling paper, while in the top trough edge are two pairs of recesses (2) accommodating rolling and unrolling shafts parallel to the bar. There can be a slide rail between the unrolling shaft and the bar and parallel to the latter, and on the rail (6) a bracket slides and can be locked, carrying a cutting knife.</p> |
