词条 | revolver |
释义 | revolver weapon ![]() As in all subsequent revolvers, Colt's cylinder contained several bored ammunition chambers, equidistant from each other and from the axis about which the cylinder revolved. Each chamber successively locked in position behind the barrel and discharged by pressure on the trigger. Colt's early revolvers were single-action, in which the cylinder revolved as the hammer was cocked manually, and they used percussion caps. Double-action revolvers, in which the hammer is cocked and the cylinder revolves as the trigger is pulled, were developed in the mid-1800s, along with metal cartridges. Despite the slight escape of propellant gas through the junction between the cylinder and the barrel, the revolver has remained a competitor of the automatic pistol. |
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