Abstract: A containment structure for a septic pit for manure, the septic having a side wall extending upwardly from a bottom wall, the containment structure including a base designed to sit on the side wall of the septic pit, a frame extending over the septic pit, an upper connecting device hanging from a flexible cable interconnecting the upper connecting device and the frame, a plurality of lower attachment members and a plurality of straps extending between the upper connecting device and the lower attachment members with a cover being supported by the straps.

Abstract: A cover arrangement for a manure pit comprising a support arch extending over the manure pit, a cover formed of sheet material which is secured with an upper portion of a wall extending about the manure pit, a cable extending between opposed sides of the wall, the cable passing over the arch and being secured thereto, a block mounted to another side of the arch, a further cable secured to the cover and to the block and a winding arrangement for raising and lowering the cover.

Abstract: A locking arrangement is provided for releasably locking door panels made of flexible material. The locking arrangement is adapted to be used on door panels of conventional vehicle shelters. The locking arrangement comprises a pair of generally hook-shaped locking members attached to the inner peripheral edges of the door panels. The locking members have mutually engaging hooking sections. A resiliently biased portion of the door panel biases the hooking members away from each other, thus lockingly forcing the hooking sections against each other. The specific configuration of the locking members is adapted to prevent the members from being unlocked by external pressure caused by the wind blowing onto the exterior surface of the door panels. A pair of gripping apertures extending through the door panels adjacent the locking structures facilitate the handling of the locking assembly.