An electrolytic cell and process are described for use in a plant for the cathodic recovery of a metal from, for example, an ore. The cell includes one or more intermediate compartments which are bounded by ion-permeable separators and are disposed between the anode compartment and the cathode compartment. In the process, an aqueous solution of a salt of the metal is circulated around a first circuit including the cathode compartment of the cell, and an acid solution is circulated around a secon...

The polypeptides represented by the general formula: R-Asn-Ser-Phe-Arg-Tyr-OH wherein R is H, Cys, Gly-Cys, Leu-Gly-Cys, Gly-Leu-Gly-Cys, Ser-Gly-Leu-Gly-Cys, Gln-Ser-Gly-Leu-Gly-Cys, Ala-Gln-Ser-Gly-Leu-Gly-Cys, Gly-Ala-Gln-Ser-Gly-Leu-Gly-Cys, or Ile-Gly-Ala-Gln-Leu-Gly-Cys, and the salt thereof, useful for development of reagents for clinical diagnosis of essential hypertension or in research of pathophysiology.

A method of construction on natural or artificial soils subject to liquefaction involves the provision of one or more permeable wells penetrating the soil supporting a structure, such that excess water pressures induced by cyclic loads on the structure can be relieved. Pumps can be used to maintain the water pressure in the wells lower than the natural water pressure in the surrounding soil. The wells may be filled with water-permeable material. Structures in accordance with the invention can be...

A garment of a type generally known as pantyhose having a plurality of ventilation panels both around a pants portion and preferably along a leg and toe portion to promote healthy breathing of sensitive portions of the skin of the body.

A method of surveying a cathodically protected metallic structure at least partly immersed in a liquid, such as an undersea pipeline which has sacrificial anodes attached at regular intervals along its length. The anodes provide a known electrolytic potential relative to the surrounding water. The potential differences in the water between a point adjacent an anode, and test points adjacent the pipeline are measured, and the varying level of protection along the pipe is determined from the varia...

Strain measurement apparatus comprises a rigid support arranged to be secured against the surface of a structure. One or more resiliently deformable carrier elements provided with strain gauges mounted in said support are urged against the surface by the securing of the support to engage the surface at regions spaced from the region of securing of the support and thereby the strains at said regions of engagement are translated directly into deformation of the carrier element or elements to produ...

A boiler of the type having a convection enclosure with convection surfaces in which the convection enclosure is partially enclosed by walls which form a downwardly closed water-tight container. These walls extend downwardly to at least the upper portion of the convection enclosure. Inlet and outlet piping and valves are provided for the water-tight container to permit the container to be filled with water for dissolving soot and other deposits on the convection surfaces in order to clear the su...

A latch security kit comprising a pair of templates for positioning at predetermined positions respectively on a door and door jamb adjacent the door latch and staple, the templates indicating the positioning of studs to be affixed to the door and door jamb so that the studs will be mutually interspersed when the door is closed onto the jamb, and a set of studs to be inserted in the position defined by the templates.

Device relating to building frameworks which comprise a foundation (2, 3), supported by the foundation, a number of vertical uprights (1) in the longitudinal direction divided in elements (6, 7) joined to the end of each other to form the respective complete upright (1), a number of substantially horizontal beams (4), provided for the support of such area covering elements as floor structure elements (5) at least partly positioned above each other to form several stories of the building, which b...

A power plant for exploitation of the temperature difference between different water layers in a pelagic area (2), comprising a closed system which is filled with ethane which is both in the liquid and vapor phases. The system comprises two heat exchanging apparatuses (13, 9) which are in fluid communication with each other, of which the first (13) supplies heat to the ethane by means of heat exchange with water from a relatively warmer water layer, while the other (9) removes heat from the etha...