Dump scow

Claim 1

IN A DUMP SCOW HAVING A PLURALITY OF SIDE TANKS FOR BUOYANCY AND A PLURALITY OF HOPPERS BETWEEN SPACED SIDE TANKS FOR HOLDING CARGO IN SAID HOPPERS, EACH OF THE HOPPERS HAVING A PAIR OF GATES IN THE BOTTOM THEREOF FOR RETAINING CARGO IN EACH OF THE HOPPERS, THE IMPROVEMENT COMPRISING A QUICK OPENING OPERATING CONTROL DEVICE FOR EACH OF THE GATES INCLUDING, A GATE ARM PIVOTAL ABOUT A FIXED PIVOT POINT FIXED TO SAID SCOW AND BEING OPERABLY CONNECTED TO ITS RESPECTIVE GATE TO CONTROL SAID GATE, A FLOATING LINK HAVING ONE END PIVOTALLY CONNECTED TO THE GATE ARM, A PIVOT LINK HAVING ONE END PIVOTALLY CONNECTED TO THE OTHER END OF THE FLOATING LINK AT A FLOATING PIVOT POINT, THE OTHER END OF THE PIVOT LINK PIVOTAL ABOUT A SECOND FIXED PIVOT POINT, A FIXED STOP ENGAGEABLE WITH THE FLOATING PIVOT POINT TO HOLD THE PIVOT LINK IN ONE DIRECTION ON ONE SIDE OF A LINE PASSING THROUGH THE SECOND FIXED PIVOT POINT AND THE CONNECTING POINT OF THE GATE ARM AND THE FLOATING LINK, AND A FLUID POWER CYLINDER HAVING ON END PIVOTALLY CONNECTED TO THE FLOATING LINK TO DISENGAGE THE FLOATING PIVOT POINT FROM THE FIXED STOP TO ALLOW THE GATE TO OPEN BY GRAVITY.