Patent ID: 6108931
Filing Date: 2000-08-29
Classification: F26B

Abstract:
A drying apparatus comprising:a housing;a conveyor for displacing a flat workpiece horizontally in a travel direction through the housing on a level;a horizontal array of horizontally elongated upper nozzle boxes lying in a plane above the level, each box being formed with a plurality of downwardly directed nozzle holes;means for feeding heated air to the boxes and projecting the heated air from the holes against the workpiece for drying same;respective upper shield plates each formed with a plurality of apertures and slidable in a shield-plate plane on the respective boxes between a position with the apertures aligned with at least some of the respective holes and a position with the apertures out of line with the respective holes;at least one pivotal rod lying in a plane parallel to said shield-plate plane extending along a rod axis in the direction and having radially projecting arms each engaged with a respective one of the respective shield plates; andmeans for pivoting the rod about the rod axis and thereby shifting all the shield plates between their positions.