EE WAS SHOVELING TAIL PULLEY. CONVEYOR OVERHEADHAD GONE EMPTY. A ROCK ROLLED OFF SIDE OF CONVEYOR, STRIKING EE'S HARD HAT AND MADE A LACERATION ON RIGHT SIDE OF SCALP. HE HAD TO GET 6 STITC HES. EMPLOYER WELDED SIDE PLATES ON CONVEYOR TOPREVENT ANY OTHER ACCIDENTS.