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A breech-loading swivel gun was a particular type of swivel gun and a small breech-loading cannon invented in the 14th century. It was equipped with a swivel for easy rotation and was loaded by inserting a mug-shaped device called a chamber or breech block, filled with gunpowder and projectiles.
Breech-loading swivel gun with mug-shaped chamber, and wedge to hold it in place. Although breech-loading is often considered a modern innovation which facilitated the loading of cannons, [3] breech-loading swivel guns were invented in the 14th century, [4] and used worldwide from the 16th century onward by numerous countries, many of them non-European.
They were a particular type of swivel gun, and consisted in a small breech-loading cannon equipped with a swivel for easy rotation, loaded by inserting a mug-shaped chamber already filled with powder and projectiles. The breech-loading swivel gun had a high rate of fire, and was especially effective in anti-personnel roles.
Springfield Model 1866 breech. The Springfield Model 1866 was the second iteration of the Allin-designed trapdoor breech-loading mechanism. Originally developed as a means of converting rifle muskets to breechloaders, the Allin modification ultimately became the basis for the definitive Springfield Model 1873, the first breech-loading rifle adopted by the United States War Department for ...
This had threads in sets of steps of increasing diameter so that instead of only half of the screw being threaded, the fraction threaded was number of steps / (1 + number of steps): i.e. if the block of a large gun had four steps of threads, 80% of the screw was threaded, allowing a much shorter screw and hence breech block. This allowed the ...
Until the Nineteenth century, the only mechanism that could fire faster was the Kalthoff repeater, which was more delicate and expensive. However, unlike the Kalthoff, the Cookson system had a dangerous flaw in that flame could leak from the firing chamber into the powder magazine, making the gun explode at high risk to the user.
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