Ok, this is going to be in lamens terms, bear wit me!
so when the trigger is pulled, it disengages the sear from the 2 notches (full cock and half cock, respectively) on the unseen part of the hammer, allowing the hammer to fall and a round is fired. After the round leaves, the recoil drives the slide back, and the slide moves, meaning that the little half-moon shaped recess the upper part of the disconnector sat in moves, driving the disconnector downward, which conveniently places itself in the way of the trigger so, had it not been there, the trigger would continue to put pressure on the sear, driving it back indefinitely as the trigger was held and thereby causing an automatic stream of fire. So, with the trigger no longer putting pressure on the sear (because it is blocked by the disconnector), the full cock notch in the hammer is caught by the sear during the rearward motion of the hammer caused by the rearward movement of the slide. So, after the slide is back again in place, with the hammer at full cock, the trigger is released, releasing the disconnector into its little half-moon notch under the slide, where it remains until the next pull of the trigger.
Have I got it?
so when the trigger is pulled, it disengages the sear from the 2 notches (full cock and half cock, respectively) on the unseen part of the hammer, allowing the hammer to fall and a round is fired. After the round leaves, the recoil drives the slide back, and the slide moves, meaning that the little half-moon shaped recess the upper part of the disconnector sat in moves, driving the disconnector downward, which conveniently places itself in the way of the trigger so, had it not been there, the trigger would continue to put pressure on the sear, driving it back indefinitely as the trigger was held and thereby causing an automatic stream of fire. So, with the trigger no longer putting pressure on the sear (because it is blocked by the disconnector), the full cock notch in the hammer is caught by the sear during the rearward motion of the hammer caused by the rearward movement of the slide. So, after the slide is back again in place, with the hammer at full cock, the trigger is released, releasing the disconnector into its little half-moon notch under the slide, where it remains until the next pull of the trigger.
Have I got it?