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Illustration of stepwise bronze casting by the lost-wax method. Lost-wax casting – also called investment casting, precision casting, or cire perdue (French: [siʁ pɛʁdy]; borrowed from French) [1] – is the process by which a duplicate sculpture (often a metal, such as silver, gold, brass, or bronze) is cast from an original sculpture.
Fostoria Shade and Lamp Company had done well enough in 1892 that it declared a cash dividend in the spring of 1893. Charles Foster completed his term as United States Secretary of the Treasury, and was re-elected president of Fostoria Shade and Lamp Company. [60] [Note 8] In May the nation was shocked when Foster declared bankruptcy. [65]
Produce wax patterns: Although called wax patterns, pattern materials may also include plastic and frozen mercury. [6] Wax patterns can be produced in one of two ways. In one process, the wax is poured into the mould and swished around until an even coating, usually about 3 mm (0.12 in) thick, covers the inner surface of the mould.
[14] [16] [17] The Patent Duplex Lamp, marketed from about 1864, used two wicks instead of the usual one, and gave out twice the light. [18] The great selling point of Hinks lamps was that they did not need frequent trimming or give off nasty smoke or smells. The company was first incorporated in 1873 (and re-incorporated in 1896).
The company was founded in 1840 when its founder, 22-year-old Robert Edwin Dietz, purchased a lamp and oil business in Brooklyn, New York. Though famous for well-built indoor and outdoor kerosene lanterns, it was a major player in the automotive lighting industry from the 1920s into the 1960s.
Edward Miller & Co. (1844–1924) was formed in Meriden, Connecticut, and is primarily known as a historical manufacturer of lamps. The company also made brass kettles and oil heaters. In 1866, the corporation was formed with capital of US$200,000. Its earlier beginning included being started by Horatio Howard.