Device for adjusting the spacing between two bars, which are mounted on a frame, parallel to each other, and intended for guiding a web (sheet) of material which can be folded, especially a web (sheet) of paper

摘要

An adjustable bar B1 is held relative to the frame 8 by means M suitable for moving the bar B1 parallel to itself, the said bar being mounted on a spindle 13 or the like which extends longitudinally beyond the ends of the bar, and which traverses slots 20 which are provided in uprights 17, 18 of the frame and are oriented parallel to the direction of possible movement of the bar, locking means V being provided between the spindle 13 and the uprights 17, 18 in order to immobilise the said spindle and therefore the said bar in a required position. IMAGE