Abstract: A drawing-in machine for threading weaving machine harnesses is provided with apparatus for separating one at a time the drop-wires to be threaded from a stack of drop-wires. The stack of drop-wires is moved toward a stop located adjacent a slit. A selecting member (31) in the form of a friction wheel contacts the front face of the forwardmost drop-wire of the stack of drop-wires to urge that drop-wire transversely into the slit so as to separate that drop-wire from the stack. The selecting member moves the front drop-wire from the drop-wire stack into an intermediate position from which it can be separated completely from the stack and threaded with a warp thread. The drop-wires do not need to have any specific configuration at the point of application of the selecting member and they also do not need to be lined up or arranged in a specific manner. The friction wheel contacting the drop-wires at their front face is able to singularize all types of drop-wires.