EE WAS PULLING SHIELDS ON THE LONGWALL FACE WHILE COAL WAS BEING MINED. AS THE CABLE GUARD FOR THE SHEARER CABLE SLID IN SPILL TRAY, IT CAUGHT ON STONE AND THREW IT INTO THE EE'S FACE. THE STO NE STRUCK HIS SAFETY GLASSES. THE FRAME OF THE GLASSES CUT HIS FACE OVER HIS RIGHT EYE. THERE WAS NODAMAGE TO THE MINING OPERATION OR THE EQUIPMENT. EE WAS WEARING SAFETY GLASSES.