- Cylinder blown sheet glass
Cylinder blown sheet is a type of hand-blown window glass. It is created with a similar process to broad sheet, but larger cylinders are produced by swinging the cylinder in a trench. The glass is then allowed to cool before the cylinder is cut. The glass is then re-heated and flattened. The result is much larger panes and improved surface quality over broad sheet.
In this manufacturing process glass is blown into a cylindrical iron mould. The ends are cut off and a cut is made down the side of the cylinder. The cut cylinder is then placed in an oven where the cylinder unrolls into a flat glass sheet. William J. Blenko used this method in the early 1900s to make stained glass. These imperfect panes have led to the misconception that glass is actually a high-viscosity fluid at room temperature, which is not the case.
Other methods of producing hand-blown window glass included broad sheet, blown plate, crown glass and polished plate. These methods of manufacture lasted at least until the end of the 19th Century. The early 20th Century marks the move away from hand-blown to machine manufactured glass such as rolled plate, machine drawn cylinder sheet, the Fourcault process of flat drawn sheet, single and twin ground polished plate and most common, float glass.
Cylinder blown sheet glass was manufactured in the UK in the mid 19th Century. It had been manufactured in France and Germany (and imported to the UK) since the 18th Century.
"Hand-blown glass: manufacturing process". London Crown Glass Company. Archived from the original on November 6, 2005. http://web.archive.org/web/20051106023351/http://www.londoncrownglass.co.uk/Manufacturing.html. Retrieved December 30, 2005.
Glass forming techniques Commercial techniques Artistic and historic techniques See also
Wikimedia Foundation. 2010.
Look at other dictionaries:
Cylinder blown sheet — is a type of hand blown window glass. It is created with a similar process to broad sheet, but larger cylinders are produced by swinging the cylinder in a trench. The glass is then allowed to cool before the cylinder is cut. The glass is then re… … Wikipedia
Blown plate — is one of many types of hand blown glass. It is made from broad sheet glass by laboriously hand grinding and polishing both surfaces. Blown plate is of a sufficient quality and size for mirrors and coach glasses.Other methods for making hand… … Wikipedia
Glass — This article is about the material. For other uses, see Glass (disambiguation). Moldavite, a natural glass formed by meteorite impact, from Besednice, Bohemia … Wikipedia
Glass recycling — Public glass waste collection point in a neighborhood area for separating colorless, green and amber glass … Wikipedia
GLASS — Glass results from the heating of a mixture of sand, lime, and sodium carbonate to a very high temperature. When different materials are added to the sand, glass can become transparent, translucent, or colored. While the origins of glass are… … Historical Dictionary of Architecture
Glass production — Glass is common in everyday life, from glass windows to glass containers. The manufacture of glass for everyday purposes may involve complexity and automation. This article deals with the mass production of glass. Glass container productionGlass… … Wikipedia
cylinder glass — noun : glass blown in the shape of a cylinder then split and flattened into a sheet * * * a sheet of glass formed originally in the shape of a cylinder and then divided lengthwise and flattened. Also called broad glass. [1810 20, Amer.] … Useful english dictionary
Crown glass (window) — This article is about the window glass. For the optical glass, see Crown glass (optics). Crown Glass Crown glass was an early type of window glass. In this process, glass was blown into a crown or hollow globe. This was then transferred from the… … Wikipedia
Broad sheet — is a type of hand blown glass. It is made by blowing molten glass into an elongated balloon shape with a blowpipe. Then, while the glass is still hot, the ends are cut off and the resulting cylinder is split with shears and flattened on an iron… … Wikipedia
Architectural glass — is glass that is used as a building material. It is most typically used as transparent glazing material in the building envelope, including windows in the external walls. Glass is also used for internal partitions and as an architectural feature … Wikipedia