Irrigation gate wall

Claim 1

AN IRRIGATION DITCH GATE WALL FOR WATER TO BE CONTROLLED IN IRRIGATION, SAID GATE WALL COMPRISING A PLURALITY OF PLANKS DRIVEN VERTICALLY INTO THE EARTH ACROSS THE IRRIGATION DITCH AND EXTENDING FROM SIDE TO SIDE OF THE DITCH THUS FORMING AN IRRIGATION WALL, SAID PLANKS HAVING INTERLOCKING TONGUE AND GROOVE-FORMING PORTIONS ALONG THEIR LONGITUDINAL EDGES AND SAID GROOVE-FORMING PORTIONS INCLUDING LONGITUDINALLY EXTENDING PLANK RIBS, SAID PORTIONS FORMING JOINTS INTERCONNECTING SAID PLANKS IN THE IRRIGATION WALL CONTINUOUSLY IN SERIES CONTINUITY AGAINST WIDTHWISE SEPARATION AFTER THE PLANKS HAVE BEEN DRIVEN AND SAID PORTIONS MAINTAINING EACH OF SAID PLANKS, WHEN DRIVEN, IN INTERLOCKING WITH THE NEXT OF SAID PLANKS BEING DRIVEN, SAID PLANKS PROVIDING A PASSAGE HAVING SELECTED LOCATION IN THE DITCH AND SUITED TO THE DITCH, BY THE TOP END OF AT LEAST ONE INTERMEDIATE PLANK OF THE SERIES OF PLANKS BEING DRIVEN DOWN INTO THE DITCH AND LOWER THAN THE TOP ENDS OF ADJACENT PLANKS OF THE SERIES FLANKING SAID PASSAGE IN ESTABLISHING WIDTH AND VERTICAL EXTENT OF SAID PASSAGE, THUS FOR WATER TO FLOW IN THE DITCH THROUGH THE PASSAGE FROM THE UPSTREAM SIDE TO THE DOWNSTREAM SIDE OF THE IRRIGATION WALL, AN AREA OF SAID IRRIGATION WALL ON THE SIDE OF SAID WALL OPPOSITE THOSE OF SAID PLANK RIBS AT SAID INTERMEDIATE AND ADJACENT PLANKS BEING A FLAT AREA SUBSTANTIALLY ALL IN A SINGLE PLANE INCLUDING CORRESPONDING PLANE FACES OF SAID INTERMEDIATE AND ADJACENT PLANKS, AND SAID GATE WALL FURTHER INCLUDING A VERTICALLY MOVABLE GATE EXTENDING ACROSS SAID PASSAGE AND ALONG SAID FLAT AREA AT THE BOTTOM OF SAID PASSAGE TO CLOSE SAID PASSAGE AND BE LIFTED VERTICALLY TO OPEN THE PASSAGE, AND GATE GUIDE AND STOP MEANS ENGAGED WITH SAID IRRIGATION WALL, INCLUDING GATE EDGE GUIDE PORTIONS IN SUBSTANTIALLY CONFORMING ABUTTING RELATION TO SAID FLAT AREA OF SAID IRRIGATION WALL ON OPPOSITE SIDES OF SAID PASSAGE, SAID EDGE GUIDE PORTIONS EXTENDING OUTWARDLY FROM SAID FLAT AREA OF THE IRRIGATION WALL, AND THENCE LATERALLY TOWARD SAID PASAGE TO DEFINE SPACES SLIDABLY RECEIVING OPPOSITE EDGES OF SAID GATE OUTSIDE SAID FLAT AREA OF THE IRRIGATION WALL, AND SAID MEANS HAVING AREA THEREON FOR SAID GATE TO ABUT AND BE STOPPED AGAINST VERTICAL DOWNWARD MOVEMENT RELATIVE TO SAID IRRIGATION WALL WHEN THE GATE IS IN THE PASSAGE CLOSING POSITION.