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Eli Terry was using interchangeable parts using a milling machine as early as 1800. Ward Francillon, a horologist, concluded in a study that Terry had already accomplished interchangeable parts as early as 1800. The study examined several of Terry's clocks produced between 1800–1807. The parts were labelled and interchanged as needed.
Hall recognized individually fitted parts as the factor slowing rifle production and adapted his breech-loading design to the “uniformity principle,” widely known as interchangeable parts. Hall proposed the concept of interchangeable parts to the Army in June 1816 [ 1 ] and earned a contract for 1,000 of the "Model of 1819" Hall rifles from ...
Simeon North (July 13, 1765 – August 25, 1852) was an American gun manufacturer, who developed one of America's first milling machines (possibly the very first) in 1818 and played an important role in the development of interchangeable parts manufacturing.
Honoré Blanc (1736–1801) was a French gunsmith and a pioneer of the use of interchangeable parts. [1] [2] He was born in Avignon in 1736 and apprenticed to the gun-making trade at the age of twelve.
The idea of interchangeable parts and the separate assembly line was not new, though it was little used. The idea was first developed in East Asia during the Warring States period and later the Qin dynasty over 2200 years ago – bronze crossbow triggers and locking mechanisms were mass-produced and made to be interchangeable.
He had not mentioned interchangeable parts at that time. Ten months later, the Treasury Secretary, Oliver Wolcott Jr., sent him a "foreign pamphlet on arms manufacturing techniques," possibly one of Honoré Blanc's reports, after which Whitney first began to talk about interchangeability. Whitney's gun factory in 1827
A switchable firing pin, interchangeable cylinder and an inlet barrel made this possible. The gun was available in 3" and 4" version. Some more interesting guns then began to be made, and the "Texas Scout" also became available in .45 blank. Herbert Schmidt then also made a double-action revolver, the "Buffalo Combo", a .38 - .22lr convertible.
The system's field guns included 4-, 8-, and 12-pounder cannons and 6- and 8-inch howitzers. The gun barrels were cast shorter and thinner, while gun carriages were built lighter and narrower. These improvements dramatically reduced the weight of an artillery piece. The carriages were standardized and built with interchangeable parts.