Hi Steven,

at least, I can ad two more patents which seem to have something to do with your Schrader.

1/ German patent No. 89537 filed in German patent office on 9. April 1896:





2/ German patent No. 100914 filed in German patent office on 14. February 1898:




Question: German patent 128240 also devised a safety lock with a cocking lever under the triggerguard bow, but there coil springs are used. Does your gun have coil springs?

Regards

Martin