Abstract: Non-slip assembly of a spectacle frame made of synthetic material includes two silicone elements filling two respective depressions formed at two nose pads of the spectacle frame. Each silicone element is rigidly held in the respective depression as a viscous silicone is cured. Each silicon element is flush with an edge of the respective depression.

Abstract: A side bridge for metal spectacles has a plastic pad and a metallic bridge support which is insertable with one connecting end into an opening of a mounting support provided on the pad. The mounting support is made of a spring elastic material. In the opening and at the connecting end, lockable profiles or elements are provided. The profiles mounted on the mounting support are preferably provided in the center of the opening which serves as a passageway opening. The opposite side faces of the opening diverge in the direction of the discharge openings thereof.

Abstract: A metal frame for eyeglasses is provided which includes a pair of rims, each of which is configured to surround and support an eyeglass lens, and a locking bar secured to each of the rims. The locking bar and the rim to which it is secured are separated by a separation slot so as to divide the rim and the bar into first and second rim portions and first and second locking bar segments respectively. A jacket having an internally threaded bore is coupled to the first locking bar segment to prevent movement thereof relative to the first locking bar segment towards the second locking bar segment, and a locking bar screw is detachably coupled to the second locking bar segment and is in threaded engagement with the bore of the jacket.