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The lantern is the large round glass structure, that houses the lens, located at the top of the lighthouse. This structure is made out of multiple materials, primarily glass, wood, and iron. Any conservation or restoration processes should keep in mind that the lantern, ventilation shafts, and lens should not be obstructed in any way.
The lids of CorningWare are typically made of Pyrex. Though some early lids were made of Pyroceram, most subsequent covers have been made of borosilicate or tempered soda-lime glass. Unlike the cookware, these lids have a lower tolerance for thermal shock and cannot be used under direct heat.
In 1915, Corning created an improved heat resistant glass formula and launched Pyrex, the first-ever consumer cooking products made with temperature-resistant glass, in 1915. [ 13 ] The California Institute of Technology 's 200-inch (5.1 m) telescope mirror at Palomar Observatory was cast by Corning during 1934–1936, out of low expansion ...
The Lucerna Magic Lantern Web Resource [1] and the Magic Lantern and Lantern Slide Catalog Collection on Media History Digital Library [2] offer sources that display the range of terminology used. This list welcomes all references, independent of the term that the respective collection uses to describe its material.
Originally, Sneath Glass made kerosene lantern globes and the founts that held the lantern's fuel. Ruby, green, and blue globes were a specialty. [26] At one time, Sneath Glass was one of only three factories in the United States that made copper ruby globes. Major customers of lantern globes were railroads and ships. [1]
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