Machine drawn cylinder sheet

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Machine drawn cylinder sheet was the first mechanical method for "drawing" window glass. Cylinders of glass 40 feet (12 m) high are drawn vertically from a circular tank. The glass is then annealed and cut into 7 to 10 foot (2 to 3 m) cylinders. These are cut lengthways, reheated, and flattened.

This process was invented in the USA in 1903. This type of glass was manufactured in the early 20th century (it was manufactured in the UK by Pilkingtons from 1910 to 1933).

Other historical methods for making window glass included broad sheet, blown plate, crown glass, polished plate and cylinder blown sheet. 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, flat drawn sheet, single and twin ground polished plate and float glass.

[edit] Source

• Hand-blown glass: manufacturing process. London Crown Glass Company. Retrieved on Dec. 30, 2005.

v • d • e Glass forming techniques Commercial techniques Float glass process · Blowing and pressing (containers) · Extrusion / Drawing (fibers, glasswool) · Drawing (optical fibers) · Overflow downdraw method · Pressing · Casting · Cutting · Flame polishing · Diamond turning · Rolling Artistic and historic techniques Beadmaking · Blowing · Blown plate · Broad sheet · Caneworking · Crown glass · Cylinder blown sheet · Etching · Fourcault process · Fusing · Lampworking · Machine drawn cylinder sheet · Millefiori · Polished plate · Slumping · Stained glass fusing · Stained glass production In addition, glass can be formed by other techniques that are common for ceramics or metals, including polishing, sintering, sawing, grinding, drilling, cutting, and bending. For application to glass these techniques may need to be adjusted.