Hyperbolic paraboloidal construction

Claim 1

A ROOF SUPPORTED ON TWO PAIRS OF INTERSECTING OPPOSITE SIDE SUPPORTING MEMBERS, SAID ROOF HAVING A SUBSTANTIALLY HYPERBOLIC PARABOLOIDAL GENERAL SURFACE CONTAINING TWO SYSTEMS OF STRAIGHT LINES, EACH SYSTEM BEING PARALLEL TO A DIFFERENT DIRECTOR PLANE OF TWO DIRECTOR PLANES WHICH FORM AN ANGLE WITH EACH OTHER AND IN WHICH THE INTERSECTIONS OF THE LINES OF ONE OF SAID SYSTEMS WITH THE LINES OF THE OTHER OF SAID SYSTEMS ESTABLISH SAID GENERAL SURFACE OF SAID ROOF, SAID ROOF HAVING A PLURALITY OF METAL SHEET PANELS WITH THEIR PANEL ENDS SECURED TO ONE OF SAID PAIRS OF SAID INTERSECTING SIDE SUPPORTING MEMBERS AND WITH THEIR PANEL EDGES FORMING INTERLOCKING JOINTS WITH THE ADJACENT PANEL EDGES OF ADJACENT PANELS, SAID JOINTS COINCIDING WITH THE STRAIGHT LINES OF ONE OF SAID SYSTEMS OF STRAIGHT LINES SUBSTANTIALLY AT THE GENERAL SURFACE OF SAID ROOF AND SAID PANELS BEING UNDULATED BETWEEN THEIR ENDS AND EDGES TO COMPENSATE FOR THE GRADUAL APPROACH OF THE EDGES OF EACH PANEL TOWARD EACH OTHER FROM THE ENDS OF EACH PANEL TO THE LONGITUDINAL CENTER OF EACH PANEL, WITH ONE OF SAID PAIRS OF INTERSECTING OPPOSITE SIDE SUPPORTING MEMBERS INCLUDING OPPOSITE PANEL AND SUPPORTING MEMBERS AND THE OTHER OF SAID PAIRS INCLUDING OPPOSITE PANEL EDGE SUPPORTING MEMBERS, AND WITH A PLURALITY OF SAID PANELS BEING INTERMEDIATE REGULAR PANELS INTERMEDIATE A FIRST SPECIAL PANEL AND A SECOND SPECIAL PANEL, SAID INTERMEDIATE REGULAR PANELS HAVING THEIR ENDS SECURED RESPECTIVELY TO SAID PANEL END SUPPORTING MEMBERS, SAID FIRST SPECIAL PANEL HAVING ITS ENDS SECURED TO SAID PANEL END SUPPORTING MEMBERS WITH ONE OF ITS EDGES SECURED TO ONE OF SAID PANEL EDGE SUPPORTING MEMBERS AND WITH ITS OTHER EDGE SECURED TO AND FORMING ONE OF SAID JOINTS WITH ONE OF SAID INTERMEDIATE REGULAR PANELS, SAID SECOND SPECIAL PANEL HAVING ITS ENDS SECURED TO SAID PANEL AND SUPPORTING MEMBERS WITH ONE OF ITS EDGES BEING SECURED TO THE OTHER OF SAID PANEL EDGE SUPPORTING MEMBERS AND WITH ITS OTHER EDGE SECURED TO AND FORMING ONE OF SAID JOINTS WITH ANOTHER OF SAID INTERMEDIATE REGULAR PANELS.