Abstract: A swimming pool of circular or oval shape constructed of interleaved extruded aluminum panels with water containing liner secured thereto wherein hoop stresses in the pool walls from the water pressure are withstood along the panels and the joints therebetween. The pool walls are constructed from a plurality of interleaved extruded aluminum panels which are constructed so that when a pair of adjacent panels are positioned relative to each other in a first predetermined position, the male and female joint portions can be slid, one within the other with sufficient extra space or play to allow easy insertion and assembly. However, when the two adjacent panels are then rotated to a different angle relative to each other, the play or additional space is taken up and the adjacent panels become locked together in an essentially unitary construction.

Abstract: The disclosure relates to swimming pools having a sheet metal exterior wall of substantially continuous oval or circular shape having a liner attached thereto for retaining water for the pool. The liner is secured to the pool wall area by means of an S-shaped bead receiver positioned over the top surface of the wall and held in place by means of a top clip which is attached to spaced uprights about the pool wall, the top clip having a substantially U-shaped portion of slightly larger width than the portion of the bead receiver overlapping the top surface of the wall. In this manner, the bead receiver is locked in position when the top clip is secured to an upright. The bead of the liner can now be positioned into the other half of the S-shaped head receiver after completion of assembly of the pool. The liner can also be removed and replaced without disassembling the pool as was required by the prior art.