| 摘要 |
The leading end face of a semi-cylindrical printing plate saddle, carries a movable central pin and fixed outboard pins thereon to which the perforated ends of the printing plate are secured, and its central portion has an elongated recess adapted to laterally slidably receive a plate attachment and adjustment bar carrying the central pin, which snugly fits a round central hole in the printing plate end. The outlying pins are fixedly secured to the saddle end face and fit laterally elongated guide slots in the printing plate end. The bar is adjustably slidably secured to the recess in the central portion of the end face of the saddle by two bolts threaded through laterally-elongated slots into correspondingly threaded holes in the saddle end face. Fine adjustment of the bar laterally and of the central pin thereon is made by headless conically-tipped set screws threaded through threaded holes in the bar against abutments formed by the edges of holes which are laterally-offset in opposite directions in the saddle end face. After lateral registration adjustment of the central pin and the printing plate attached thereto has been made by rotating the conically-tipped set screws, the bolts are tightened to clamp the bar in its adjusted position.
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