as far as the second accident goes; he was making a batch of chairs, working on the seats in particular. As he was feeding a seat bottom blank through the saw it started to chatter or jump. He had to hold it in place with his right hand, (fence on the right of the saw blade). That took the use of both hands, left to feed the piece through the saw and the right to steady it. And as I said, a lever and not a big button to push in order to stop the saw. So, he pushed bravely through and was almost finished when the piece came back over the blade, if you can picture, pulling to the left and dragging the right hand over the saw blade and with his balance being out of whack, he ended up putting his wait onto the saw. My son Stephen ran to the house and grabbed clean clothe diapers and wrapped the arm. He then ran out the lane to get help from a nearby road crew. His boss for some strange reason (likely just felt helpless waiting) followed him out the lane. Stephen laid him on the shoulder of the road and one of the road crew guys was racing up the road already on the cell phone; it was plainly obvious that it was an emergency even before he talked to my son. And no, they have no phone; they are Orthodox Mennonites, as I once was as well(which might help you understand my primitive setup) Even if people have convictions against using the phone, a pay as you go cell phone can be should be in the first-aid box. Even if you don't have any money on your account, it can still make a 911 call if its been activated. That way you would have it for emergency use but still not have it for convenience if that is how your particular convictions go. But as of yet, they don't have a phone. The nearest payphone was likely about a block from the hospital, 5 miles away!
As for the guards on our own equipment, it had belt guides but not shields. They are to be fabricated soon as I upgrade various things after this build. Thanks for the microjig link; will check it out. The saw is a ten inch saw with relatively small inserts, but something must be available.