Abstract: The self-watering planter has two mantles insertable into each other, forming an annular space therebetween to define a soil space inside an inner mantle and a water space in communication with the soil space for bringing the water from the water space into the soil space. A channel is formed in the annular space defined by the mantles and connected to the water space. An opening is provided in the wall of an outer mantle for supplying the water through the channel to the water space. An arm member is movable longitudinally in the channel along a guide formed in at least one of the mantles and a float member is connected to the arm member for adjusting its position depending on the amount of water in the water space. A flap is formed in the upper part of the arm member for closing the opening upon the water space being fully filled.

Abstract: An upwardly open container, such as a bucket, includes a receptacle portion and a handle for carrying the receptacle portion in a suspended position. A receptacle of a suitable depth is formed in the receptacle portion for receiving material and is defined by an inner side wall terminating in an upward direction in a brim, and in the direction of its depth by an inner bottom surface. The receptacle is contained within an outer side surface and an outer bottom surface which define the receptacle portion. The outer side surface terminates in an upward direction in the brim and forms a cross-section area of a substantially similar configuration along the most part of the direction of depth of the receptacle in a plane perpendicular to the direction of depth of the receptacle.

Abstract: A keel structure connected to the hull of a nautical vessel, such as a sailboat, is provided at least at the junction of the vessel hull and the keel with at least one channel extending substantially lengthwise of the keel for guiding the water displaced by the keel at least partially past a zone, which extends longitudinally of the hull and is aligned with the keel, without lifting it to the surface of water.

Abstract: Plastic stackable crates for transportation and storage of goods, e.g. packages containing fluids and the like, and particularly for milk carton containers, comprising main and bottom portions, the former with front, rear and side walls that are open to the bottom, while the bottom portion is of the grating type, detachable and pivotable, allowing to be turned upwards and left in the upturned position so that the goods can be taken out through the tops of the empty upper crates when several of them are stacked up. Apertures on the front and/or rear walls of the crates, when stacked up, make a combined, almost full-height aperture which also allows the goods to be taken out sideways from the stacked crates.