Abstract: An above ground swimming pool support structure is made up a plurality of posts, wherein each post is a blow-moulded unit having a base portion and top portion with a planar shoulder. A plurality of universal coping members also blow-moulded are interconnected end to end at selective angles, one end abutting the other at the planar shoulder of each post. A plurality of holes are provided at the opposite ends of the coping members. The connection of the adjacent coping members at the selective angles is maintained by pins inserted into aligned holes at the respective interconnected ends of the adjacent coping members, such that an endless top rail supported by the posts can be formed using the universal coping members for coping a flexible pool panel end to end of an above ground swimming pool in a preselected size. The advantages include the reduced manufacturing cost resulted from the limited number of moulds for manufacturing the moulded components and reduced labour required for erecting the pool.

Abstract: A swimming pool cover and roll-up device combination comprising a flexible shaft extending intermediate of the swimming pool cover from one edge to an opposite edge, with the flexible shaft being connected at least intermittently along its length to the swimming pool cover. A crank arm or other wind-up device is provided to be connected at least to one end of the flexible shaft for applying torque to the flexible shaft. The flexible shaft can transmit the torque through the length thereof to roll up the swimming pool cover on the flexible shaft. The flexible shaft and swimming pool cover are adapted to float on the surface of the water, and when it is necessary to store the rolled-up swimming pool cover, it is removed completely from the swimming pool and stored remote therefrom.