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Interrupted screw

 
Interrupted Screw

 
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Interrupted screw
 
 
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An interrupted screw or interrupted thread is a mechanical device typically used in the breech
Breech-loading weapon

A breech-loading weapon is a firearm in which the bullet or shell is inserted or loaded at the rear of the Gun barrel, or breech; the opposite of muzzle-loading....
 of artillery
Artillery

Artillery is a military Combat Arms which employs any apparatus, machine, an assortment of tools or instruments, a system or systems used as weapons for the discharge of large projectiles in combat as a major contribution of fire power within the overall military capability of an armed force....
 guns.






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Breech 122m10 Hameenlinna 2
Breech 122m10 Hameenlinna 5
Interrupted Breech Screw
An interrupted screw or interrupted thread is a mechanical device typically used in the breech
Breech-loading weapon

A breech-loading weapon is a firearm in which the bullet or shell is inserted or loaded at the rear of the Gun barrel, or breech; the opposite of muzzle-loading....
 of artillery
Artillery

Artillery is a military Combat Arms which employs any apparatus, machine, an assortment of tools or instruments, a system or systems used as weapons for the discharge of large projectiles in combat as a major contribution of fire power within the overall military capability of an armed force....
 guns. It is a screw
Screw

A screw is a shaft with a helix groove or screw thread formed on its surface and provision at one end to turn the screw. Its main uses are as a threaded fastener used to hold objects together, and as a simple machine used to translate torque into linear force....
 that has a section of thread along its axis removed. This removal, coupled with an appropriate hole, allows the screw to be inserted directly and tightened in only 1/4 or 1/6 of a turn. It is sometimes used in loose gunpowder rifles, as it is one of the few practical ways to achieve a gas-proof seal with a gun that uses loose-loaded propellant.

See also

  • Rifled breech loader
    Rifled breech loader

    A rifled breech loader is a large artillery piece which, unlike the smooth-bore cannon and rifled muzzle loader which preceded it, has rifling in the barrel and is loaded from the breech at the rear of the gun....
  • Welin breech block
    Welin breech block

    The Welin breech block is a stepped, Interrupted thread breech, invented by Axel Welin in 1889 or 1890. Shortly after, Vickers acquired the British patents....


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