It was not a finger-friendly time for technology. Here, take a look at the Farmall tractor/buzzsaw combination that is quite similar to the one I grew up cutting wood with (and probably only slightly newer than some of those fans) :

http://sketchesofalaska.blogspot.com/2012/08/farmall-tractor...

I have all fingers and toes, but you couldn't sell that shit today without getting sued out of existence.