A breech action is the loading sequence of a breech loading naval gun or small arm. The earliest breech actions were either three-shot break-open actions or a barrel tip-down, remove the …

A breechblock (or breech block) is the part of the firearm action that closes the breech of a breech loading weapon (whether small arms or artillery) before or at the moment of firing. It seals the …

The breech mechanism is the group of devices that opens and closes the breech, fires the round of ammunition, and provides a gas seal after firing. The breech mechanism (fig 4-12 and 4-13) …

2022年11月16日 · 炮闩（Breech Mechanism），自动炮又称机芯，发射时承受燃气压力，具有闭锁、击发、开锁、开闩及抽出药筒等功能的机构。 一般由关闩、闭锁、击发、开闩（开锁） …

2017年7月4日 · 1. Breech. The part of a cannon or other firearm at the rear of the bore. 2. Breech block. The block in breech-loading firearms that closes the rear of the bore against the force of …

Breech mechanisms close the breech end of the gun and are designed to withstand the huge rearward thrust of the propellant gas pressure when the gun fires. They carry the firing …

In the simplest terms, the locked breech is one way to slow down the opening of the breech of a self-reloading firearm when fired. The source of power for the movement is recoil. The …

The M256 breech mechanism is a semi-automatic sliding wedge design, wherein the breechblock is designed to move upward within the breech recess and lock behind the rear face of the stub …

2018年2月28日 · To improve the energy absorption characteristics of the stopper, an optimization method is presented. The topology optimization, slot clearance optimization, and shape …

Broadwell’s design used a rectangular breechblock that slid horizontally in a carefully cut slot or mortise set at a right angle to the axis of the gun and located about one and a half calibers …