(1) Beater guards. When any opening or picker machinery is equipped with a beater, such beater must be provided with metal covers which will prevent contact with the beater. Such covers must be provided with an interlock which will prevent the cover from being raised while the machine is in motion and prevent the operation of the machine while the cover is open.

(2) Cleanout holes within reaching distance of the fan or picker beater must have their covers securely fastened and they must not be opened while the machine is in motion.

(3) Feed rolls. The feed rolls on all opening and picking machinery must be covered with a guard designed to prevent the operator from reaching the nip while the machinery is in operation.

(4) Removal of foreign ferrous material. All textile opener lines must be equipped with magnetic separators, tramp iron separators, or other means for the removal of foreign ferrous material.