Abstract: An automatic machine-plate change system 20 of the web-offset printing press 10 has new-plate cassettes 30U, 30L provided in a priming press 11 having plate cylinders 13U, 13L to accommodate new-plates 80U, 80L newly wound around the plate cylinders 13U, 13L, and has movement systems 40U, 40L moving the new-plate cassettes 30U, 30L to cause edges 32U, 32L of the new-plate cassettes 30U, 30L to move toward and away from the plate cylinders. Therefore, it is possible to actualize an automatic machine-plate change with a simple structure and a simple operation, to quickly and efficiently change the machine-plates, to reduce the cost of facilities and to actualize the automatic machine-plate change in high certainty and reliability.

Abstract: A printing plate mounting apparatus is disclosed, which comprises a de-mounting and a mounting lever provided on an end of a lock shaft provided in a printing cylinder and printing plate replacement drive means including air cylinders or the like. With the printing cylinder held at a predetermined position, the drive means pushes each lever to rotate the lock shaft. In this way, the rotational driving of the lock shaft and coupling and de-coupling of the driving are effected collectively. A printing plate replacement apparatus is also disclosed, which comprises roller drive means including a roller and a cylinder or the like. When mounting a printing plate, the roller is urged against the printing cylinder via the printing plate. Otherwise, the roller is retreated by the roller drive means.

Abstract: A printing plate mounting apparatus is disclosed, which comprises a de-mounting and a mounting lever provided on an end of a lock shaft provided in a printing cylinder and printing plate replacement drive means including air cylinders or the like. With the printing cylinder held at a predetermined position, the drive means pushes each lever to rotate the lock shaft. In this way, the rotational driving of the lock shaft and coupling and de-coupling of the driving are effected collectively. A printing plate replacement apparatus is also disclosed, which comprises roller drive means including a roller and a cylinder or the like. When mounting a printing plate, the roller is urged against the printing cylinder via the printing plate. Otherwise, the roller is retreated by the roller drive means.

Abstract: In a glass manufacturing method by means of a float bath for manufacturing a sheet glass by floating a glass ribbon on molten metal, a plate made of heat resistant and highly heat conductive carbon fiber carbon composite material is disposed between the floated glass ribbon and the ceiling portion of the float bath, so that obstacles can be prevented from dropping on the glass ribbon.

Abstract: A transport speed control system for a glass ribbon annealing installation comprising means to control a peripheral drive speed of those of glass ribbon transporting rollers which contact a portion of the glass ribbon at positions downstream of at least a substantially mid-position of the glass ribbon with respect to a direction of transport, to be higher than an advancing speed of that portion of the glass ribbon.