Here's those pictures. 2 ZR4 bosch magnetos editions 18&19 and one Dr4 bosh.
Also this light switch.
Were snap couplers used in automotive applications of magnetos? PK
I don't know. I got these from the estate of a guy who had both automobiles and hit and miss stuff.
What do you mean by "snap couplers". If you are referring to impulse drive couplings which do snap over center then they well may have originated in automobiles.
Neither of these appear to have an impulse drive but both seem to have variable couplings.
I have a WICO magneto on Popeye. It has an impulse coupling. I can crank the engine very slowly by hand and it starts easily.
Ya impulse coupler is the right term. I have a bunch of them on old tractors and stationary motors. I have an old Splitdorf that is supposed to be off a Indian four, it has a impulse coupler. I also have a Berling that was used on the old WW I Curtis Jennie bi-plane, it came on my 1925 Case 12-20 crossmotor. Just curious. PK