Umbrella frame for pool cover

An umbrella pool cover frame for a swimming pool that has a floor and a peripheral wall, with a ground surrounding said peripheral wall;

• the pool cover frame comprising:
• a main post adapted to be vertically disposed in said pool;
• a base member adapted to be disposed on the floor of the pool and upon which rests a lower end of said main post;
• an adjustable center support positioned on said main post;
• a top support member positioned at an upper end of said main post;
• a plurality of support legs having inner ends connected to said top support member and extending radially from the top support member to the ground beyond said peripheral wall, including means supporting outer ends of said legs on said ground;
• a plurality of support ribs extending from said center support, each said rib having a first end supported on said center support and a second end received in receptacle means on a corresponding one of said support legs;
• a second main post adapted to be vertically disposed in said pool;
• a second base member adapted to be disposed on the floor of the pool, spaced from the first-mentioned base member, and upon which rests a lower end of the second main post;
• a second adjustable center support positioned on the second main post;
• a second top member positioned at an upper end of the second main post;
• a second plurality of support legs having inner ends connected to said second top member and extending radially from the second top member to the ground beyond said peripheral wall, including means for supporting outer ends of said legs on said ground;
• a second plurality of support ribs extending from said second center support, each such rib having a first end supported on said second center support and a second end received in receptacle means on a corresponding one of said second plurality of support legs;
• and
• at least one additional support leg extending between the first-mentioned and the second top support members.