摘要:
Novel fluid application processes and apparatus wherein fluid extruded through a nozzle is wiped off the nozzle at various angles of attack by periodically forcing a moving sheet, web, or other article against the nozzle in a controlled manner as the same moves past the nozzle, thus to produce predetermined coatings upon the sheet, web, or other article, ranging from an array of dots and lines to an array of bands or elongated continuous bands of coating fluid.
摘要:
A vertical curtain of link chains is suspended from an apertured manifold supplying coating fluid to saturate the curtain. The curtain engages and coats the edge of a board which is conveyed longitudinally past the curtain. Excess fluid falls into a reservoir below the curtain and is recirculated to the manifold. In other embodiments, several manifolds with several curtains are provided to simultaneously coat the edges of several boards. The manifolds are mounted on a carriage which is reciprocable on a supporting frame so as to move the curtains of chains laterally toward and away from the board edges.