Glossary of Terms

bevel, beveled: A shaped piece of colorless glass or a grouping of pieces called a cluster, that has all edges of one side ground and polished on a specific angle as to create a prism which refracts light, and acts as a beautiful accent to the window.

came: A metal division bar made of lead, brass, or zinc that is used for structure in stained, beveled and leaded glass windows.

Clerestory Windows: Window openings in buildings that are well above ground level that provide daylight.

doorlight: The opening in a door intended for glass.

edge-glued, edge gluing: The process of repairing a broken section of glass by the use of clear silicone, and careful reassembly.

Glazier: A craftsperson that works with glass. More specifically, the person that fabricates a leaded glass windows.

lancet: A long narrow window opening with a pointed arch. Some church windows are made up of several lancets side by side.

mantel: A fancy wooden shelf that is used above the fireplace.

protective storm glass: Glass that is used on the exterior of a building to protect stained glass windows and to prevent excessive heat loss. This material varies from regular glass to polycarbonates (unbreakable plastics).

restoration: The process of extending the life of a stained or leaded panel by complete disassembly, repair and cleaning of individual glass sections, and replacment of the lead cames...essentially a new window with as much of the existing glass as possible.

rubbing: A paper patten copy of a leaded glass window that is created by placing a sheet of paper over the window and rubbing with a flat soft graphite drawing stick. This pattern is used in the reconstruction of the window and used for documentation.

sidelight: A window next to a door that allows light to enter the foyer area. A fine location for leaded glass.

surround: The decorative wood trim and/or molding around the sides a firplace, and below the mantel.

tempered glass: Glass used as a safety glazing material that is heat treated to resist breakage, and to shatter into small cubes to reduce injury. We estimate that it has approximately 5 times the direct blow resistance as does regular 18" glass. On a leaded glass window, it is used on both sides, making a very strong unit.

thermo-insulated unit: A glass panel that consists of a leaded panel sandwiched between two pieces of clear tempered glass. This serves as protection to the leaded panel, and prevents fogging and excessive heat loss.

transom: A window above a door, archway or primart window. An excellent location for decorative leadedglass.

ventilator: An operable window in a frame to allow fresh air into a building. This unit is usually located within easy reach on the lower sections of leaded glass windows.