considerable lateral flow resistance against the axial lateral air channels 65a 65b thus only an almost exclusively axial air movement past the calendar nip is possible only if the calendar nip 100d is open as shown in fig7 b is the air conveyed not only past the calendar gap but clearly also through the calendar nip the guiding air serves to thread the fiber sliver through the calendar nip and the calendar disk 100b can then be moved in so as to reach the operating position together with the threaded fiber sliver in this case where the calendar nip is open the sealing surface part of the covering d is also large enough in view of the air resistance of the now enlarged passage channel consisting of the channel segments 65a 65b and the open calendar nip 100d in order to prevent radial escape of the conveying air in the position of the calendar disks as shown in fig7 a as well as in the position shown in fig7 b the fiber sliver is presented in the same manner the user swivels the fleece funnel also called a nozzle 50 by the grip 51 into preparation position which brings the ramp section 50b into the direction of fleece movement kf a pre run impulse of the.