Abstract: An improved apparatus for chopping glass strands is disclosed. The improvement comprises a feed roll for attenuating the strand prior to chopping with a surface having a series of deep grooves cut at desired angles with respect to the sidewalls of the roll. These special grooves reduce binder collection on the surface of the feed roll thereby reducing the tendency of glass strand to wrap around the feed roll during attenuation.

Abstract: A method and apparatus is disclosed for drying and conveying chopped glass strands. The system includes apparatus for controlling the temperature of the conveying means to thereby control the drying of the wet chopped glass strand and to avoid overheating of the glass strand.

Abstract: An improved method and apparatus for forming chopped glass fiber strands is disclosed. The improvement comprises a vibratory conveyor under a drying apparatus for said glass fiber strands which is insulated such that cold spots do not develop on the tray adjacent the glass fiber strands. Preferably, the tray is formed of two sections, one inside the other, having an airspace therebetween along their lengths and having a spacer between the lips of the sections.

Abstract: An apparatus for removing cutting blades from the periphery of an annular cutting head is disclosed which is comprised of a working table on which the cutting head is mounted and a pair of free wheeling cam members positioned to contact the blades at their portions which extend beyond the width of the cutting head. The curved portion of the cam members contact the edges of the blades while the cutting head is rotated and the blades are simultaneously moved away from the cam members. The curved surface of the cam members force the blades from their mounting in the cutter head as the head is rotated.