Abstract: Spectacles with interchangeable eyeglass lenses (2), where the spectacles comprise a spectacles frame (1) and eyeglass lenses (2), where the eyeglass lenses comprise a mount (3) which is secured to an outer edge of the eyeglass lenses, and where at least one of the mount and the spectacles frame comprises a coupling element (8), which can couple together the mount (3) and the spectacles frame (1), thereby producing a spectacles frame in which the eyeglass lenses can be replaced as desired. Furthermore, the mount or the spectacles frame comprises an oblong recess (5) designed to receive a partial section (7) of the spectacles frame or a bulge on the mount. Said spectacles are suitable for use at work, bicycling in blustery weather, or skiing in harsh sunlight.

Abstract: There is described an apparatus and a fixture used in determining position and for producing assembling holes in a spectacle lens for rimless spectacles. The assembling holes are intended for receiving a U-shaped bracket which is used in fastening bridge and side bar hinge. The apparatus and fixture includes interacting guide pins and guide holes. These guide holes/pins are unambiguously disposed. The guide holes will preferably be placed symmetrically in relation to a hole center line for the lens, when this is placed in the fixation opening of the fixture with the hole center line disposed opposite to markings at the fixation opening. The assembling holes are thus placed symmetrically in relation to the marking. By such a system it is possible to make rimless spectacles that appear very accurate, without special skilled qualifications on the part of the optician to make assembling holes in the lenses.

Abstract: An eyeglass frame comprises a frame front, a pair of temple bars and a hinge for each temple bar to provide a pivotal connection. The hinge comprises a coil winding of a resilient wire integral with the temple bar and a body with a threaded groove integral with the other one of the frame front or temple bar. The body comprises friction material and the coil is adapted for cooperating and pretensioned engagement with the body in order to provide a pivotal connection with a controlled friction resistance to turning of the pivot. The invention a so provides a hinge, an eyeglass and a method of manufacturing a hinge.

Abstract: A pair of spectacles comprises two support elements (7) for engaging the nose of the wearer. Each support element comprises a pad (8) of an elastic material, a reinforcement member (22) and a peg (13) adapted for being received in the eyelet. The reinforcement member and the peg are adapted for mutual snap fitting engagement. The peg relieves the pad of any tensile forces and makes it feasible to select for the pad a very soft and comfortable material. Easy mounting and safe retention are provided. The invention further comprises a blank for the manufacturing of the peg, and a method of manufacturing a pair of spectacles.

Abstract: A pair of spectacles comprises two support elements (7) for engaging the nose of the wearer. Each support element comprises a pad (8) of an elastic material secured to a shank (10) with an enlarged head (11) adapted for retaining the support element relative to the rest of the spectacles by way of inserting the shank through said eyelet of the frame. According to the invention a peg (13) is inserted into the head end of the shank for providing a hard core inside at least part of the shank. Thus, easy mounting and safe retention are provided. The invention further comprises a blank for the manufacturing of the peg, and a method of manufacturing a pair of spectacles.

Abstract: A pair of spectacles comprises two support elements (7) for engaging the nose of the wearer. Each support element comprises a pad (8) of an elastic material secured to a shank (10) with an enlarged head (11) adapted for retaining the support element relative to the rest of the spectacles by way of inserting the shank through said eyelet of the frame. According to the invention a peg (13) is inserted into the head end of the shank for providing a hard core inside at least part of the shank. Thus, easy mounting and safe retention are provided. The invention further comprises a blank for the manufacturing of the peg, and a method of manufacturing a pair of spectacles.

Abstract: An eyeglass frame comprising a frame front (15) with front end pieces (11) for the attachment of temple bars and with a pair of straps (7), each strap being formed in the shape of a loop adapted for peripheral engagement with a respective glass with respective strap member ends in generally abutting relationship, and provided with closure means (16,17) for interconnecting the respective strap. A pair of resilient members, each one adapted for resiliently tensioning a respective strap around the glass. Each closure means comprises a first and a second hook member, formed integrally with respective strap ends, and adapted so as to retain a mutual engagement.

Abstract: A pair of spectacles comprises two support elements (7) for engaging the nose of the wearer. Each support element comprises a pad (8) of an elastic material secured to a shank (10) with an enlarged head (11) adapted for retaining the support element relative to the rest of the spectacles by way of inserting the shank through said eyelet of the frame. According to the invention a peg (13) is inserted into the head end of the shank for providing a hard core inside at least part of the shank. Thus, easy mounting and safe retention are provided. The invention further comprises a blank for the manufacturing of the peg, and a method of manufacturing a pair of spectacles.

Abstract: An eyeglass frame comprising a frame front, a pair of temple bars and respective hinge means, adapted to provide a pivotal connection of each temple bar with the frame front. According to the invention each hinge means comprises a cooperating pair of friction members (13,15) and a spring means (13) adapted for applying balanced, radially directed biasing forces onto the cooperating pair of frictions members. Hereby any play in the hinge is eliminated and the friction is maintained. Further the invention provides an eyeglass and a method of manufacturing an eyeglass.

Abstract: A shield (2) for selective fitting on a pair of spectacles (2) comprises shield glasses, a shield frame and shield guide faces (8). The spectacles comprise a spectacle frame with frame guide faces (3, 19, 20), which are oriented generally perpendicular to or in an oblique direction relative to the spectacle glasses. The spectacle guide faces and the shield guide faces are adapted to permit sliding the shield into a secured position, while preserving the mutual orientation of the shield and the glasses during a final stage of approach.

Abstract: The present invention relates to a case (30) for a clip-on spectacle shield comprising a retainer guide (31) and two housings (35) arranged for receiving respective shield lenses of the clip-on shield where the connecting bridge of the clip-on shield extends from one housing to the other, said case being characterised in that the retainer guide is made of a dimensionally stable material, that the retainer guide is made to secure the housings and to support the connecting bridge of the clip-on shield in a well-defined orientation, that the housings are made of a resilient material and are configured to tightly enclose the shield lenses so as to ensure that the case is deformed elastically for an increased curvature when the clip-on shield is contained therein whereby the clip-on shield is secured elastically.

Abstract: An electrostatic precipitator arrangement comprises an oscillating circuit in which the precipitator is included as a capacitor, the circuit also including a storage capacitor and pulse initiating means, such as a thyristor or a spark gap, for causing the energy stored in the storage capacitor to oscillate from that capacitor to the precipitator and then through a diode or other electric valve means having the opposite direction of conduction back to the storage capacitor.