System for controlling width and position of glue or the like applied to a roll

摘要

A control system for controlling the width and position of glue, ink or the like applied from a pan to a roll for applying the glue to a running web. Any out-of-trueness of the web or change in its width is detected by sensors and two dams mounted in the pan are moved to new suitable positions by motors actuated in response to a signal from the sensors.