Albert-frankenthal Ag

Roland Reffert

An apparatus for compensating for cylinder sag in a gravure forme cylinder utilizes a support roller which is located beneath the gravure forme cylinder in an ink trough. The support roller has a length that is less than the length of the gravure forme cylinder.

Apparatus for compensating for cylinder sag

A device for creating a printing pattern on an endless form sleeve utilizes a pattern forming head that is cooperatively positioned with an outer surface of an endless, sleeve. The sleeve has an inner ply of a ferromagnetic material and is supported in part by a support cylinder which may also be magnetic. A sleeve tensioning assembly is used to tension that part of the endless sleeve which is not supported by the cylinder.

Device for forming a printing pattern on a printing sleeve

A printing cylinder utilizes a magnetic surface to support a portion of a ferro-magnetic endless printing sleeve which has a circumferential length greater than that of the printing cylinder on which it is supported. A sleeve tightening assembly supports that part of the endless sleeve which is not in contact with the periphery of the printing cylinder.

Printing cylinder and endless sleeve

For manufacture of booklets consisting of an inner portion and a cover having material different than the inner portion on a folding apparatus including a collecting cylinder, two successively-disposed band guidances associated with the collecting cylinder, surrounding two successively-disposed peripheral segments of the collecting cylinder. One band guidance surrounding the rear peripheral segment transports web segments from which the inner portion is assembled to the collecting cylinder, while the other band guidance which surrounds the front peripheral segment delivers web segments forming a cover to the collecting cylinder. The collecting cylinder is provided with holding members which grip the leading edges of the web segments being set thereon, the holding members being activated in the region of the front peripheral segment. The holding members being inactivated following the completed collection process after passing the folding flap cylinder associated with the collecting cylinder.

Growing community of inventors

Frankenthal, Germany

Roland Reffert