Abstract: A heat-treatment apparatus for a textile web comprises a gas-pervious conveyor belt having a stretch defining a treatment path having an upstream end and a downstream end, a system for feeding the web to the upstream end and for advancing the belt to advance the web toward said downstream end along the path, a plurality of upwardly directed lower slot nozzles underneath the stretch along said path, a plurality of downwardly directed upper slot nozzles above the stretch along the path and a device for feeding a hot gas alternately to the upper and lower nozzles. The lower slot nozzles are transverse to at least some of the upper slot nozzles.

Abstract: Articles to be dried are conveyed through a tentering frame in a path. Air is heated and then directed into contact with the articles in direction transversely of the path. The air is directed by at least one crossflow blower unit and a plurality of channel elements, each of which has a foraminous wall which faces the articles passing through the frame. The blower is driven by a motor drive which is operative for circulating the heated air in direction through the blower unit and into the channel elements. Thereupon, the air passes through the respective foraminous walls to impinge against and thereby dry the articles.

Abstract: Articles to be dried are conveyed through a tentering frame in a path. Air is heated and then directed into contact with the articles in direction transversely of the path. The air is directed by at least one crossflow blower unit and a plurality of channel elements, each of which has a foraminous wall which faces the articles passing through the frame. The blower is driven by a motor drive which is operative for circulating the heated air in direction through the blower unit and into the channel elements. Thereupon, the air passes through the respective foraminous walls to impinge against and thereby dry the articles. After impingement, the air is guided away from the articles by a plurality of air outlet passages which are respectively formed between adjacent ones of the channel elements which are successively arranged along the path at a predetermined spacing from each other.