Page:The Kinematics of Machinery.djvu/240

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KINEMATICS OF MACHINERY.

Egypt men spin as well as women), who in his left hand holds up the flax,

The method here used, by which a rotation in a certain degree continuous, and always in the same direction, is produced, stands in both instances very near to the primitive rotation by whirling.

Fio. 169

Eopemaking belongs to spinning in the wider sense of the word. The Egyptian ropemaking apparatus shown in the above figure has a special interest for us, as forming a remarkable connecting link between our own endless band motion (Fig. 142) and the original whirling cord. It is still used in Egypt for twisting the already prepared strands into a rope (here one of four strands) but is