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a steel wire or strip with an eye in the centre, or a similar device through which a warp yarn is threaded. The heald enables the yarn to be raised or lowered during weaving to create a shed.
Heald shaft:
a frame in which a large number of healds are mounted. Typically a loom contains two or more heald shafts, depending upon the complexity of the weave pattern required. The heald shaft is raised or lowered by means of cams or a dobby mechanism to form a shed and to create different weave patterns.
