For the most part these old singles did not have any form of positive extraction. The extractor/ejector was simply pushed in on closing against a coil spring in the barrel lump. On those which did not eject the spring pushed the extractor out on opening. Those which ejected had a catch which held the ejector in until the gun was opened. The catch was then tripped & the shell ejected. If that catch is not present then it will simply act as an extractor without ejecting.
Neither had a mechanical means of starting a "Stuck" shell. but was entirely dependent on the strength of the spring. This was pretty much universal on the "Hardware" singles. High grade Single Barrel Trap guns & such were of course more refined.
