EE WAS INSTALLING ROLLERS USING A COFFING HOIST TO RAISE THE ROLLER FRAME TO A VERTICAL POSITION ON THE CONVEYOR BED. HIS LEFT HAND WAS BRACED ON THE NEXT ROLLER FRAME DOWN WHILE HIS RIGHT HAN D WORKED THE COFFING HOIST. AS THE FRAME WAS BEING ROTATED INTO PLACE IT SUDDENLY LET LOOSE AND SLID DOWN AGAINST THE NEXT FRAME, CRUSHING HIS FINGER. THE WOUND REQUIRED A STITCH.