Abstract: An apparatus for forming and producing elongated threads or filaments of synthetic material such as fluorocarbon resins which can be used to form yarns utilizes, a turning machine having, a chuck assembly for mounting a billet of the fluorocarbon resin material therein, and a lead screw assembly with a tool holder assembly thereon. The lead screw assembly is disposed to move a cutting tool in the tool holder assembly longitudinally and parallel to the axes of rotation of the billet so that a plurality of cutting edges on the end cutting face of the cutting tool can cut simultaneously from the billet a corresponding plurality of sized, shaped and dimensioned threads or filaments which can be combined and formed into the desired yarn. Means are provided to synchronize the movement of the cutting tool with the rotation of the fluorocarbon resin billet.

Abstract: Injection apparatus suitable for supplying in-mold thermoset coating material into a compression molding tool is provided, which injection apparatus comprises a housing (10) the forward end of which comprises an outlet nozzle (11) and an outlet channel (12) extending through the outlet nozzle, the forward terminus of the outlet channel being an outlet port (13). First and second material supply channels (14 and 15) extend within the housing from first and second supply inlet ports (16 and 17) in the housing, respectively, to a single common junction with the outlet channel. A shut-off rod (26) is slideably disposed within the outlet channel, being adapted to provide a sealing closure of the outlet port in a first, forward position and being retractable from the forward position to a second position in the outlet channel rearward of the junction of the material supply channels with the outlet channel.