History of Glass
History of Glass ステンドグラス
Roman, 100 B.C - A.D. 100 Mosaic ribbon glass 1 3/4 x 3 1/2 in. Mosaic glass vessels were popular among Romans in the early Empire. Rods of colored glass were fused together so that the cross section created a design, often a floral motif or a roundel. The composite rods were cut into disks or slices, then arranged in a pattern in a two-part mold. When heated, the glass disks fused together to form the vessel.
Spectrum® Virtual Tour: From its dramatic hot, molten state to the unique beauty of a finished sheet of art glass—the glass-making journey is fascinating process. The Spectrum® Continuous Ribbon process occurs in four basic phases: Raw material (batch) mixing Melting Sheet Forming Annealing (cooling)
The History of Spectrum Glass: In 1974 Spectrum Glass was more than just an idea. It was the prototype in the picture here: a miniature, handmade furnace and roll machine, held together with strapping tape and bailing wire, standing alone on the floor of an otherwise empty warehouse in a run down neighborhood of west Seattle. The thin ribbon of sheet glass feeding from the rollers and crashing to the floor marked the real beginning of Spectrum...
About Spectrum® The Continuous Ribbon Process: During the 1920's, one of the most important technological advances in the history of sheet glass took place: the development of a production process called the "continuous ribbon." This new system took four separate phases of sheet glass production (raw material introduction, melting, sheet forming and annealing) and combined them into one continuous operation, making possible the production of large quantities of uniform glass...