Abstract: A fire monitor formed by an outer tube that communicates with a water inlet and a coaxial inner tube connected to an outlet nozzle. Water flows from the inlet into the outer tube, and then around a semitoroidal bend formed by a baffle plate and a fairing into the inner tube for discharge through the outlet nozzle. The fairing is provided on the inner surface of the inner tube and the baffle plate has a curved periphery with an inner, continuous flat surface. The semi-toroidal bend minimizes turbulence in the water flow. Swivels are provided to permit horizontal and vertical adjustment of the direction of discharged water.

Abstract: Method and apparatus for stabilizing an upright structure such as a pile against transverse oscillation due to the relative horizontal motion of the sea past it. Gas is discharged from orifices formed either in a ring duct surrounding the pile, or in the wall of the pile itself. The bubbles tend to rise within the region of low-pressure which forms closely downstream of the pile, so breaking the synchronism of the known vortex-shedding mechanism that can promote the transverse oscillation. A perforated shroud may surround the structure and the bubbles may rise within the gap between structure and shroud. Such a shroud may itself have some stabilizing property even when the gas supply is turned off.

Abstract: This invention relates to a reinforced concrete pile having a plurality of steel reinforcing cables and at least one ferrous metal alloy electrically conductive rod per cable which permits severing by oxygen cutting or electric arc welding.