when did the first automatic gun come out
Automatic rifle The world's first automatic rifle was the Italian Cei-Rigotti. Introduced in 1900, these 6.5mm Carcano or 7.65×53mm gas-operated, selective-fire, carbines attracted considerable attention at the time.[1][2] They used 10-, 20- and 50-round box magazines.[2] The Cei-Rigotti had several failings, including frequent jams and erratic shooting.[2] In the end, no Army took an interest in the design and the rifle was abandoned before it could be further developed.[2]
AK-47 The AK-47, AK, or as it is officially known (Russian: Автома́т Кала́шникова, tr. Avtomát Kaláshnikova, lit. Kalashnikov's Automatic Rifle), also known as the Kalashnikov, is a gas-operated, 7.62×39mm assault rifle, developed in the Soviet Union by Mikhail Kalashnikov. It is the originating firearm of the Kalashnikov rifle (or "AK") family.
.45 ACP The .45 ACP (Automatic Colt Pistol), or .45 Auto (11.43Ã—23mm)[1] is a handgun cartridge designed by John Browning in 1905, for use in his prototype Colt semi-automatic pistol. After successful military trials, it was adopted as the standard chambering for Colt's M1911 pistol, being named .45 ACP.[2]
Technological and industrial history of the United States In the mid-1780s, Oliver Evans invented an automated flour mill that included a grain elevator and hopper boy. Evans' design eventually displaced the traditional gristmills. By the turn of the century, Evans also developed one of the first high-pressure steam engines and began establishing a network of machine workshops to manufacture and repair these popular inventions. In 1789, the widow of Nathanael Greene recruited Eli Whitney to develop a machine to separate the seeds of short fibered cotton from the fibers. The resulting cotton gin could be made with basic carpentry skills but reduced the necessary labor by a factor of 50 and generated huge profits for cotton growers in the South.[21] While Whitney did not realize financial success from his invention, he moved on to manufacturing rifles and other armaments under government contract that could be made with "expedition, uniformity, and exactness"â€”the foundational ideas for interchangeable parts.[22] However, Whitney's vision of interchangeable parts would not be achieved for over two decades with firearms and even longer for other devices.