Hopper and closure gate

Claim 1

A HOPPER FOR STORING AND UNLOADING FLOWABLE MATERIAL COMPRISING HOUSING MEANS INCLUDING VERTICAL SIDE WALLS, A CHAMBER WITHIN THE HOUSING MEANS FOR RETAINING THE MATERIAL, AN OPENING IN THE BOTTOM OF SAID HOUSING MEANS COMMUNICATING WITH SAID CHAMBER, DOOR MEANS PIVOTALLY CONNECTED TO THE SIDE WALLS OF SAID HOUSING MEANS SO AS TO ALTERNATELY OPEN AND CLOSE SAID OPENING, SAID DOOR MEANS INCLUDING TWO DOORS CONVERGING DOWNWARDLY TOWARD EACH OTHER TO FORM A FIRST ANGLE WHEN CLOSED AND CONVERGING DOWNWARDLY TOWARD EACH OTHER TO FORM A SECOND ANGLE WHEN OPEN, SAID FIRST ANGLE BEING GREATER THAN SAID SECOND ANGLE, OPERATING MEANS CONNECTED TO EACH OF SAID DOORS FOR PIVOTING SAID DOORS AND SUPPORT MEANS RIGIDLY FIXED TO AND HAVING PORTIONS ANGULARLY ORIENTED WITH RESPECT TO SAID SIDE WALLS FOR SUPPORTING SAID DOOR MEANS IN THEIR OPEN POSITION CAUSING THEM TO FORM A FUNNEL FOR THE FLOWABLE MATERIAL AND SUPPORTING SAID HOUSING MEANS ABOVE THE GROUND LEVEL.