CEMENT BOARD HAVING REINFORCED EDGES

摘要

A cement board having bare surfaces and a woven mesh of reinforcing fibers (16) underlying the top, bottom, and longitudinal edge surfaces is made continuously on an improved apparatus which comprises a pair of edger rails (34) which slidably rest on a conveyor belt (12) and define the path of the cement board being made on the conveyor belt and a means (44a) for folding and pressing outer margins of the bottom mesh into the edge surfaces and the top surface.