Abstract: A spool for use in a wire braiding machine, for example, which has a “bi-tapered” design including a central cylindrical section and a pair of tapered (e.g., frusto-conical or parabolic) flanges having surfaces that slope inwardly toward the cylindrical section. In this manner, the spool provides a progressively widening wire fill area, as measured along a direction parallel to the rotational axis of the bobbin, as the wound wire advances progressively radially outwardly from the cylindrical section. This widening wire fill area aids in preventing the formation, propagation and buildup of wire winding defects, such that the wire is more likely to unspool or pay-out from the spool without losing tension, snagging or breaking.

Abstract: A spool for use in a wire braiding machine, for example, which has a “bi-tapered” design including a central cylindrical section and a pair of tapered (e.g., frusto-conical or parabolic) flanges having surfaces that slope inwardly toward the cylindrical section. In this manner, the spool provides a progressively widening wire fill area, as measured along a direction parallel to the rotational axis of the bobbin, as the wound wire advances progressively radially outwardly from the cylindrical section. This widening wire fill area aids in preventing the formation, propagation and buildup of wire winding defects, such that the wire is more likely to unspool or pay-out from the spool without losing tension, snagging or breaking.