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D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
D21F7/00—Other details of machines for making continuous webs of paper
D21F7/04—Paper-break control devices
D—TEXTILES; PAPER
D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
D21G9/00—Other accessories for paper-making machines
D21G9/0009—Paper-making control systems
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(AREA)
Abstract
Control system, esp. for regulation of dryness of, e.g., paper or cardboard webs, by controlling steam flow to drying rolls, has a probe to measure dryness of web and producing a signal corresponding to the deviation from the set point. The signal is fed to a controller, which is adjusted for a given set point and provides an output signal for controlling a regulator in the steam line.
FR1604097D1968-12-311968-12-31Dryer control system - for moving webs, esp paper
ExpiredFR1604097A
(en)
CONTROL DEVICE FOR A DEVICE FOR GLUING A PAPER TRAIL, PULLED FROM A ROLL, TO THE PAPER TRAIL OF A NEW ROLL, WHILE MAINTAINING A PRE-DETERMINED WEB PULL-OFF SPEED
Apparatus for automatically measuring and controlling the moisture of paper web, cardboard, cloth and other materials made in the form of a continuous tape