EMPLOYEE UNLOADING BARROW AGGREGATE FROM TRAIN CARS. TRAIN CAR DUMP DOORS BEING LODGED BY EMPLOYEE USING A STEEL BAR. EMPLOYEE KNOCKING THE DOOR'S LATCH DOWN BY STRIKING IT WITH THE STEEL BAR. WHILE STRIKING THE DOOR'S LATCH ON ONE CAR DOOR THE BAR SLIPPED, CAUSING THE EE'S LEFT HAND TO STRIKE A RAISED METAL EDGE ON THE TRAIN CAR. EE'S FINGER PINCHED BETWEEN THE STEEL BAR & TRAIN