Search results
Results from the WOW.Com Content Network
The cut cylinder is then placed in an oven where the cylinder unrolls into a flat glass sheet. Blenko Glass Company used this method to make flat glass during the 20th century, but it used a process patented by William Blenko that used molds for the cylinder to enable consistency in the size of the glass. In Blenko's case, slight imperfections ...
Gampaha: 22 November 2002: The image house [2] Sun Moon carved rock: Galahitiyawa-North: Gampaha: 22 November 2002 [2] Thalagama Raja Maha Vihara: Thalagama-East: Mirigama: 22 November 2002: Caves and inscriptions in Vihara premisses [2] The ancient Magazine in Negombo Courts Road: No. 156A, Uturmunnakkaraya: Negombo: 22 July 2011 [19] The ...
Plate glass is often used in windows. Fragment of a Roman window glass plate dated to 1st to 4th century CE. Plate glass, flat glass or sheet glass is a type of glass, initially produced in plane form, commonly used for windows, glass doors, transparent walls, and windscreens. For modern architectural and automotive applications, the flat glass ...
The glass used typically starts out as 1-inch-wide (25 mm) strips of 1 ⁄ 4-inch-thick (6.4 mm) plate glass, which is cut into 1 inch (2.5 cm) squares. The glass square is then scored across the diagonal with a steel or tungsten carbide glass-cutting wheel to determine where the square will break, and pressure is then applied gradually across ...
The greater the hone angle of the wheel, the sharper the angle of the V and the thicker the piece of glass it is designed to cut. The hone angle on most hand-held glass cutters is 120° to 140°, though wheels are made as near-flat as 154° or even 160° [180° would be flat like a roller] for cutting glass as thick as 0.5 inches (13 mm). [4]
Fourcault process machine operators require experience in order to judge placement of the die, location of various parts of the process, and rates of draw. These must be balanced against glass quality and the age of the draw. As the draw continues the glass in the pit grows cooler and cooler, eventually leading to failures or diminished quality.
Guillotine cutting is the process of producing small rectangular items of fixed dimensions from a given large rectangular sheet, using only guillotine-cuts. A guillotine-cut (also called an edge-to-edge cut) is a straight bisecting line going from one edge of an existing rectangle to the opposite edge, similarly to a paper guillotine.
Mirror plates prior to the invention had been made from blown "sheet" glass, and were consequently very limited in size. De Nehou's process of rolling molten glass poured on an iron table rendered the manufacture of very large plates possible. [2] In 1773 English polished plate (by the French process) was produced at Ravenhead. By 1800 a steam ...