The wheel hub consisted of a pair of spoke flanges joined by a tube, spinning on the new screwadjustable cone ball bearings, supported on a nonrotating axle. To assemble a wheel, spokes were threaded through the holes in the two hub flanges, then arranged in the desired pattern (defined by how many other spokes each one crosses). Because the elastic stretch of which a spoke is capable increases with its length, this loss of "stretchiness" sometimes resulted in wheels whose spokes became loose when the brake drum expanded from the heat of hard use. [Extracted from the article]
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