I still remember my high school shop days and all those educational films on safety. That looks like an old Craftsman saw we used to have. I hated it. It did not have a guard either. I used it reluctantly because my dad was too thrifty to buy a new one. Someone stole it, fortunately, before it took off a finger. I made him buy a new one with a guard. Best thing we ever did. Throw that thing away before we nickname you Stumpy. We already have a member with that name. A New saw will be a minor cost in your total kitchen remodel.