It's always a little hard to know exactly what to say when someone quotes somebody elses misquotes of myself and my research work. The info that Researcher posted from "Larry B Schuknect's book on double gun patents" was actually close but not exactly correct.
The story is far more involved than that but I think it's best if I just stand back and watch (read).
In the name of advancement, I will point out some glaring misquotes though. Patent 871550 was drawn on a Crass, not a Minier.... Don't forget patent 1013255.... Alfreds 3rd single trigger patent was applied for on June 25th 1909. Hint---that patent was never granted. Even Worrest himself knew that 829453 and 871550 belonged in the scrap heap...those first two triggers were both failures in every sense of the word.