Guard for the nips of rolls in calenders and like machines

Apparatus for treating a running web of paper, textile material or the like in a calendar or a like machine, comprising first and second elongated rolls defining an elongated nip having an inlet side for admission of the running web and an outlet side;

• and a guard at the inlet side of said nip, said guard including a hollow support defining a substantially sealed fluid conveying channel and extending substantially longitudinally of and adjacent said nip, a first substantially strip-shaped elongated blocking device mounted on said support adjacent said first roll and extending longitudinally of said nip, a second substantially strip-=shaped elongated blocking device mounted on said support adjacent said second roll and extending longitudinally of said nip, each of said blocking devices having a plurality of sections arranged in a row extending longitudinally of the respective roll and being movable toward and away from the respective roll, and means for moving said sections, said moving means including first moving devices for the sections of said first blocking device, second moving devices for the sections of said second blocking device, first holder means for said first moving devices and second holder means for said second moving devices, said first and second holder means being mounted on said support adjacent each other, said support having fluid discharging ports communicating with said channel and being offset with reference to said blocking devices in the circumferential direction of said support, said moving means being disposed--in its entirety--externally of said support and being offset relative to said ports in the circumferential direction of said support.