Abstract: A mechanism includes two units for securing a transparent eye protector to a helmet having a recess at either side. Each unit comprises a bracket formed at one end of a frame of the eye protector. The bracket includes, at a free end thereof, an inner raised, round surface, radial first ridges on the raised, round surface, an outer recessed, round surface, and a central hole through the round surfaces. Separate snapping members include two lower, resilient latched pieces inserted into each recess for releasably securing to the helmet, radial second ridges at an upper, outer surface, and a central hole through the upper, outer surface. Bolts are driven through the central holes for fastening the snapping members and the brackets together. Pivoting of the ridges of the bracket about the ridges of the snapping member is done by pulling the eye protector up or down about the helmet.

Abstract: Angle adjustment arrangements for eyeglass temples are provided in which each arrangement comprises an end-piece of frame including a recess and an opening; a connection mechanism received in the recess and including first and second circularly shaped bifurcated ends and a first series of serrations on an inner wall of first circularly shaped bifurcated end; and a fastening mechanism received in the opening and including a second series of serrations formed on an inner shank; and a temple secured to the connection mechanism wherein a ridge of second series of serrations is interfitted into a space between adjacent ones of first series of serrations for pivotably securing connection and fastening mechanisms together, thereby allowing temple to be pivoted with respect to end-piece in an operating state.