Abstract: An apparatus and method for mounting thermoplastic materials directly upon a string medium. A hot runner system or three-plate mold provides the cavities for integrating the molten thermoplastic material and string medium. Molten thermoplastic is injected at a plurality of input apertures along a bifurcated mold, the bifurcated mold having complementary cavities joined by subrunners to transmit the molten thermoplastic material into each cavity. Each cavity is adapted to form a member which is to be permanently affixed on the string medium and includes aligned channels for receiving the stringed medium prior to injection of the molten thermoplastic material. The stringed medium is disposed within the channels prior to injection of the molten thermoplastic material. Under appropriate temperature and pressure conditions, the injected thermoplastic runner flows into subrunners filling each cavity of the bifurcated mold, thermoplastic bodies forming about the stringed medium in a permanent manner.

Abstract: An apparatus for binding paper sheets and related articles incorporating means for exhibiting replaceable visual indicia to be used as a tabbing, marking, signaling and clipping device. A moldable material exhibiting suitable resiliency and strength forms the present invention clip. A base portion depends into a substantially V-shaped outer clamping member. An inner clamping arm is interposed centrally within the V-shaped member from the common base, the inner clamp member including a central spine having a cross-section which is larger than the inner clamping member. A pair of concave indentations lie adjacent to and on opposite sides of the inner clamping member, the concave indentations extending into the base of the clip. The surface of the base of the clip comprises a lattice of perpendicular ridges, the lattice work appearing on both sides of the base.