Abstract: A novel approach to sample deposition in furnace atomization is disclosed which obviates the need for skilled application of microvolumes by syringe. By means of the apparatus and method disclosed, the analyte in aerosol form is deposited under controlled conditions on the internal surface areas of graphite furnaces. Precision approaching that of flame atomization systems is achieved and at the same time, concentrational sensitivity may be increased simply by extending the deposition time. The amount of analyte deposited in the furnace is restricted only by the sample volume available and the matrix concentration. A single standard can be used to construct a calibration curve by simply varying the aerosol deposition time.

Abstract: A breakwater, or similar structure, comprising a core of rubble, and an armouring layer overlying said core, said armouring layer being composed of individual armour units of hexagonal outer cross-section arranged in a honeycomb array, each of said armour units having an elongated, concrete body with longitudinal through water-passage means so that the porosity of the exposed face of the armouring layer is solely determined by the ratio of the cross-sectional area of said water passage means to the cross-sectional area of the concrete body.

Abstract: A navigation aid consists of only three, namely first, second, and third indicia bearing members, the latter being respectively a transparent ground speed member bearing a ground speed scale having an origin, a transparent true air speed member bearing a true air speed scale having an origin, and a transparent wind speed and direction member bearing a wind speed scale and a wind direction indicator and having an origin, one of the first and second members bearing above the origin of its scale a compass rose which carries a drift scale which measures the angle between the ground speed scale and the true air speed scale, the three members lying in parallel juxtaposed planes, and only two connections being provided, one of the connections connecting two of the above members together at the origins of their scales by a connection having one rotational degree of freedom, and the other of the connections connecting the remaining member to one of the other two members at the origin of its scale by a connection havin

Abstract: Apparatus for measuring and controlling the relative humidity of exhaust air from an industrial drier in which exhaust air is passed across a dry bulb and a wet bulb thermocouple from which a voltage is derived providing a measure of the relative humidity in the air in the sample. This voltage is used to control the amount of exhaust air from the drier to atmosphere. The wet bulb thermocouple is cyclically dipped in a bowl of water under the control of a timer system of the voltage to control the amount of exhaust air discharged until the wet bulb thermocouple is equilibrated with the exhaust air sampled after dipping.

Abstract: Samples to be analyzed by atomic absorption spectrometry, are introduced into an electrothermally heated furnace for sample atomization by means of a filament arranged to be passed longitudinally through the furnace and to be heated by an electrically heated current. A plurality of liquid samples are deposited at regular intervals along the length of the filament which is then heated to simultaneously dry and ash the samples and is thereafter advanced through the furnace sample by sample to enable rapid sequential analysis to be carried out in this furnace. Preferably the filament is provided along its length with means such as short coils of filament material that act to hold the liquid samples.

Abstract: A pilot's kneepad for use as an aid to navigation by pilots and navigators of aircraft and other vessels consisting of a plate which has means for attaching it to the upper surface of the thigh of a seated pilot, the plate having on its upper surface information for use in navigational calculations and having hingedly attached to it along one edge a second plate the underside of which also carries information for use in navigational calculations and which has on its upper side means for attachment of a writing pad. Preferably, along one edge of the plate is provided a slide rule that can be used for making inflight calculations.

Abstract: In a process for extracting protein from lupins and other low fat seeds the improvement comprising saturating the seeds with water and wet milling them prior to extracting the protein thereby avoiding undue denaturation of the protein.

Abstract: The invention consists of a method and apparatus for article sorting wherein an electronically interrogatable label is provided for and attached to each article, the label bearing indicia indicative of a serial number, instructions relating to the routing of the label bearing those indicia being fed into a suitable computing system arranged to control the operation of sorting devides on receipt of a signal from a reader arranged to interrogate the label. The term "label" is intended to include any device such as, for example, a tag, capable of carrying the necessary indicia and of being attached to an article to be sorted.

Abstract: A molasses fermentation residue is converted into a coagulation product to use in preparing animal feed or fertilizer by concentrating a molasses fermentation residue to a solids level of at least 60 percent, heating the residue to about its boiling point and cooling, adding a soluble phosphate to the cooled residue and coagulating the residue-phosphate mixture by heating at about 105.degree. to 120.degree.C.

Abstract: A method and a device for vapor growing crystals. The crystals are grown in an evacuated ampoule from a liquified sample source material, such that the source material is separated from the growing crystal by one or more capillaries or the like which provide the only pathway between the sample source and the growing crystal. There is a temperature gradient between the sample source and the growing crystal such that the growing crystal is at a lower temperature than the sample source.

Abstract: A suction device for medical purposes which enables diseased tissue, such as brain tumor tissue, to be removed. No mechanical action is involved in the use of the suction device and therefore no blood vessels or healthy tissue is damaged.

Abstract: This invention relates to absorbents which are particularly useful for the treatment of sulphur-containing oxides. These absorbents are made from materials containing aluminium oxide by steps including leaching an oxide-containing material, such as bauxite, with an alkaline solution; separating the resultant leach liquor; and drying the liquor. If desired alkali metal carbonate may be added to the liquor between the steps of separation and drying.