It seems that older equipment does not have belt guards. I am an industrial mechanic and have seen what fingers look like after they have been run through a pulley. It ain't pretty!
Ideally, a good cover prevents the possibility of anyone being able to get any part of their body or clothing into the spinning belt.
Belt guards are usually made of sheetmetal and mounted securely to the machine with accommodations to remove enough of the guard to easily service the belt or pullies.
I don't have sheet metal tools. I can cut it and make small bends but I don't have a brake and I don't have a welder. (I have a Oxy Accet set I bought in the early 70s but the tanks haven't had gas in then for decades.)
Peruano posted pictures of his saw, where he used plastic bread trays to cover his belts.
http://s275.photobucket.com/user/rababikes/media/lapidary/IMG_0278_zps57ee324c.jpg.htmlhttp://s275.photobucket.com/user/rababikes/media/lapidary/DSCN2295_zps8bced897.jpg.htmlhttp://s275.photobucket.com/user/rababikes/media/lapidary/DSCN2335_zps8a930758.jpg.htmlWhat have you come up with?
I have three saws that need guards. A 6", a 12" and a 20". My plan is to try making guards out of wood. I have a 4x 8x 1/4" sheet of mahogany plywood and I'm going to buy a 12' stick of that 3/4" oak angle trim, (from Home Depot). After I assemble the custom guard, Ill seal it with a thinned (water soluble) wood putty and a sanding sealer. Then I'll paint it with the same paint I'm using on the saw. (Rust-Oleum Universal Hammer Finish paint). I plan to make a custom box that will be secured to the saw and a removable cover for the front of the box.
My only real concern is durability. I'm not certain how well a wood guard will hold up. I guess it will depend on how well I support the corners and the amount of abuse I apply to it.
Sooo.... Have you got any ideas? Have you found storage bins or plastic containers or metal boxes or anything that can be converted to a guard?