| 摘要 |
A rotary printing press comprises a rotatable blanket cylinder and a plate cylinder disposed in rolling engagement with said blanket cylinder. A skew-adjusting means varies the angle between the blanket and plate cylinders. A form roll is disposed in rolling engagement with the plate cylinder. Plate cylinder throw off means moves the plate cylinder to disengage the plate cylinder from the blanket cylinder. The plate cylinder throw off means comprises means for disengagement of said plate cylinder from said blanket cylinder without skew movement of the plate cylinder. Form roll-plate cylinder adjustment means is provided for adjusting the center-to-center distance between the form roll and the plate cylinder. A cam has surface means for maintaining the center-to-center distance between the form roll and the plate cylinder as the plate cylinder is thrown off the blanket cylinder and as the skew adjusting means varies the angle between said blanket and plate cylinders.
|
