AN EMULSION JACK WAS BEING USED TO FREE LONGWALL SHIELD NO 125,WHICH WAS WEDGED BETWEEN THE GOB PLATE AND SHIELD NO 124.THE PLATE WAS ANGLED;LEANING TOWARD THE JACK.AS THE JACK WAS PRESSURIZED THE PLATE ANGLE DECREASED ENOUGH TO FREE THE JACK HEAD;RELEASINNG THE POTENTIAL ENERGY STORED IN THE FLEXING OF THE PLATE.THIS CAUSED THE JACK TO COME UP STRIKING EMPLOYEE.
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3 matching records
Showing all 3I NAME WAS REMOVING A PIECE OF DRAW ROCK THAT WAS CAUGHT ON A STRAP (32"X 27"X 6" THICK) WE HAVE COME TO THE CONCLUSION THAT HE FELL ADN THE ROCK FELL ON HIM THE ROCK STRUCK HIM ON THE RIGHT S IDE OF THE FACE AND HEAD ALSO ON THE CHEST AREA
A PIECE OF ROCK ABOUT 5FT WIDE 12FT LONG 0-5 1/2IN THICKNESS FELL STRIKING THE VICTIM CAUSING FATAL CRUSHING INJURIES.