Abstract: An attachment for a protective visored helmet worn by riders of motorcycles, bicycles or the like comprising a first, curved, tapered, aerodynamic plastic housing adapted to be secured to the side of such helmet below the visor thereof, a slightly contoured plastic mirror mounted in a second complementary plastic housing connected to the upper surface of said first housing, and means to adjust the horizontal relationship of the two housings and the vertical angulation of such housings with respect to the helmet to which the first housing is secured. Such attachments are normally used in pairs, i.e. with one being positioned on each side of the helmet.

Abstract: The drafting arrangement is provided with a guide element between the front roller pair and the operative unit formed by an apron and a roller. The guide element is disposed for guiding a length of fiber between the roller of the operative unit and the front roller pair. The guide element may be of D-shaped cross-section, circular cross-section or in the form of a curved plate. Where cylindrical, the guide element may also be rotated.