manufacture of iron plates
21Ironclad warship — An ironclad was a steam propelled warship of the later 19th century, protected by iron or steel armor plates. [Hill, Richard. War at Sea in the Ironclad Age ISBN 0 304 35273 X; p.17] The ironclad was developed as a result of the vulnerability of… …
22Rolling (metalworking) — A rolling schematic In metalworki …
23Lackawanna Steel Company — Infobox Company company name = Lackawanna Steel Company company company type = Public genre = foundation = 1840 founder = George W. Scranton, Seldon T. Scranton, William Henry location city = Scranton, Pennsylvania (1840 1902) Lackawanna, New… …
24Flued boiler — Trevithick s engine of 1806 is built around an early example of a flued boiler (specifically, a return flue type) A shell or flued boiler is an early, and relatively simple, form of boiler used to make steam, usually for the purpose of driving a… …
25Field artillery in the American Civil War — M1857 Napoleon at Stones River battlefield cemetery. Field artillery in the American Civil War refers to the important artillery weapons, equipment, and practices used by the Artillery branch to support the infantry and cavalry forces in the… …
26Camera — For other uses, see Camera (disambiguation). Various cameras A camera is a device that records and stores images. These images may be still photographs or moving images such as videos or movies. The term camera comes from the camera obscura… …
27home base — Plate Plate, n. [OF. plate a plate of metal, a cuirsas, F. plat a plate, a shallow vessel of silver, other metal, or earth, fr. plat flat, Gr. ?. See {Place}, n.] 1. A flat, or nearly flat, piece of metal, the thickness of which is small in… …
28Home plate — Plate Plate, n. [OF. plate a plate of metal, a cuirsas, F. plat a plate, a shallow vessel of silver, other metal, or earth, fr. plat flat, Gr. ?. See {Place}, n.] 1. A flat, or nearly flat, piece of metal, the thickness of which is small in… …
29home plate — Plate Plate, n. [OF. plate a plate of metal, a cuirsas, F. plat a plate, a shallow vessel of silver, other metal, or earth, fr. plat flat, Gr. ?. See {Place}, n.] 1. A flat, or nearly flat, piece of metal, the thickness of which is small in… …
30Plate — Plate, n. [OF. plate a plate of metal, a cuirsas, F. plat a plate, a shallow vessel of silver, other metal, or earth, fr. plat flat, Gr. ?. See {Place}, n.] 1. A flat, or nearly flat, piece of metal, the thickness of which is small in comparison… …
