One who touches the upper beam, the lower beam, the harnesses, the sley, the thread that is drawn over purple material, or a spool which is not to be shot back, remains clean. If he touches the woof, the standing warp, the double thread that is drawn over purple material or a spool which is to be shot back, he becomes unclean. If one touches the wool that is on the distaff, or on the spool, he remains clean. If he touches the spinner: Before it was uncovered he is unclean, After it was uncovered he remains clean.