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When the Dutch established the Dutch Cape Colony in the 17th century, they soon discovered their muskets were hopelessly inadequate against local game. Within a century the most popular Boer firearm was a flintlock smoothbore musket of about 8 bore with a 5 to 6 ft (1.5 to 1.8 m) barrel. [3]
Sagunto kiln, 1951. With the industrial age, kilns were designed to use electricity and more refined fuels, including natural gas and propane. Many large industrial pottery kilns use natural gas, as it is generally clean, efficient and easy to control. Modern kilns can be fitted with computerized controls allowing for fine adjustments during ...
As of 2000, the waelz process is considered to be a "best available technology" for flue dust zinc recovery and the process is used at industrial scale worldwide. [ 7 ] As of 2014, the Waelz process is the preferred or most widely used process for zinc recovery of zinc from electric arc furnace dust (90%).
Agar gun.58 rifle cartridge United States: 1861 Ares Shrike 5.56: Ares Defence: 5.56×45mm NATO: Ammunition belt/Detachable box magazine United States: 2002 Bailey machine gun.32 rifle cartridge United States: 1875 Barnitzke machine gun — 7.92×57mm Mauser: Ammunition belt Germany: Beretta AS70/90: Fabbrica d'Armi Pietro Beretta — 5.56× ...
The Hoffmann kiln is a series of batch process kilns. Hoffmann kilns are the most common kiln used in production of bricks and some other ceramic products. Patented by German Friedrich Hoffmann for brickmaking in 1858, it was later used for lime-burning, and was known as the Hoffmann continuous kiln.
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The rotary kiln was invented in 1873 by Frederick Ransome. [1] He filed several patents in 1885-1887, but his experiments with the idea were not a commercial success. Nevertheless, his designs provided the basis for successful kilns in the US from 1891, subsequently emulated worldwide.
The PP-91 is a simply designed, easy to manufacture selective fire submachine gun designed by Yevgeny Dragunov (the designer of the SVD sniper rifle).. It is blowback operated and fires from a closed bolt, allowing for more accurate shooting than would be possible from an open bolt design.