MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES

**Limiting references (this place does not cover):** - Preparation of finely divided silica -> C01B33/18 - Changing the surface of the glass ribbon by chemical methods -> C03C - Chemical aspects of glass -> C03C - Refining agents -> C03C1/00 - Chemical aspects of hollow, porous, sintered or foamed beads -> C03C11/00 - Beads composition -> C03C12/00 - Surface treatment of glass by coating with glass -> C03C17/02 - Surface treatment of fibres or filaments from glass, minerals or wools, sizing of the fibres -> C03C25/00 - Coating of the fibre during the drawing process -> C03C25/10 - Optical fibres per se with polarisation maintaining properties in light guides -> G02B6/024 - Cutting or severing of light guides -> G02B6/25 - Fusion-splicing of light guides -> G02B6/255 - Treatment of light guides to shape optical elements -> G02B6/287

**Glossary:** - Annealing: Process of slowly cooling glass to relieve internal stresses after it was formed - Cullet: Scraps of broken or waste glass for remelting - Debiteuse: Clay block floating upon molten glass in a tank furnace and containing a long slot that shapes glass into a sheet as it is drawn through it - Gob: Lump of molten glass used to make a piece of glassware - Mineral wool: Inorganic fibrous material made from molten glass - Slag wool: Mineral wool made from blast-furnace slag - Tempering: Process of heating glass above its annealing point and then rapidly cooling it.