A process and apparatus is provided for the production of nitrogen with over-atmospheric pressure by two-stage rectification of air at low temperatures. Air (1) is compressed (2), pre-purified (4, 6), cooled (33) in heat exchange with products of fractionation, and fed to the rectification device. An oxygen-enriched liquid (19) from the sump of the low-pressure stage (13) is vaporized (15) in cont...

PURPOSE:To make a shifting characteristic ever so better as well as to improve durability, by altering an extent of engine torque in time of speed change attending on high gear shift of a sub-transmission, while changing a variation in this engine torque according to at least a shift type. CONSTITUTION:Each output signal is inputted into an ECT computer 50 from a car speed sensor 110 and a shift p...

A process and apparatus is provided for the production of nitrogen with over-atmospheric pressure by two-stage rectification of air at low temperatures. Air (1) is compressed (2), pre-purified (4, 6), cooled (33) in heat exchange with products of fractionation, and fed to the rectification device. An oxygen-enriched liquid (19) from the sump of the low-pressure stage (13) is vaporized (15) in cont...

X-ray equipment has a tubehead 12 associated with a local repeater warning system 18 to give a preliminary warning that energisation of the tubehead 12 is imminent, and a kill switch on or adjacent the tubehead 12 to abort or inhibit energisation. By this means, not only is a warning given in the vicinity of the tubehead 12, but the source of the danger is identified. Thus, personnel caught in the...

Splicing head operated by a compressed gas for use in an automatic splicing device for producing by splicing a thread connection without knots, having a splicing head with at least two openings to admit the compressed gas, which accepts the two threads which are to be joined together, and has the capability to effect the mutual tangling, interwining, mixing and/or winding around of the fibers of t...

A closing device for containers (4) for a liquid (5, 6, 7) that may be infected, preferably for containers (4) for use in connection with blood sampling and examination, is divided into two members (1, 2) substantially normal to the plane of the opening of the container (4). The closing device member (2) may advantageously be provided with a through passage (3) in which a filter (3') may, addition...

An improved antistatic coating for a polyester support bearing a photographic layer is applied in two coatings using conventional coating equipment. The first coating contains an electrically conductive polymer and optionally a binding agent; the second coating contains a crosslinking agent.

A sealant composition particularly suitable for vehicle tyres comprises a curable butyl rubber and one or more tackifiers, the tensile strength, elongation and cross-link density of the composition being adjusted to produce the necessary properties for tyre sealants. The composition may also be adapted for use in adhesive products for use in connection with membrane roofing materials. The composit...

In a parapet portion of a curtain wall, indoor side and outdoor side members of each panel unit mounted at the top of the curtain wall are connected via a connector made of heat-insulating material, and a damp-proofing sheet is mounted so as to extend between the indoor side member and a building body to form a heat-insulating damp-proofing layer, whereby the disadvantages that heat received by a ...

A vehicle guidance and control system has a number of trucks (2, 3) whose movement is controlled by a base station (4). Each truck periodically fixes its own position in relation to marker boards (8) consisting of patterns of reflective coded stripes by scanning a narrow laser beam (14) in a predetermined direction across the stripes. Using at least two boards its position can be determined by tri...

Apparatus and method for inspecting the finish of transparent containers, particularly glass containers, which include facility for directing diffused light energy laterally through the container finish as the container is rotated about its central axis. A camera includes a plurality of light sensitive elements disposed in a linear array angulated with respect to the container axis to view the ext...

Polyisocyanurate polymers are prepared by the polymerization of organic polyisocyanates in organic solvents employing trimerization catalysts. After deactivation of the catalysts and removal of the solvents, these polymers may be dispersed in polyols which are employed for the preparation of cellular and non-cellular polyurethane products displaying improved load bearing properties.

This device comprises a resilient stress-responsive member interconnecting two conduits which can be respectively coupled to upper and lower portions of the downhole assembly, and are surrounded by a protecting sleeve making up with one of said conduits, the lateral walls of an annular space. Annular elements secured to a first of said lateral walls, and slidable on the second of said lateral wall...

PURPOSE:To manufacture superconductor wire composed mainly of Nb, Sn by packing plural bundles of CuSn alloy hexagonal bar and Nb sheet into CuSn alloy billet, hot extruding said billet to thin wire, cutting it and carrying out hot extrusion again by similar method. CONSTITUTION:Into CuSn alloy billet having 60mm outer diameter, 54mm inner diameter and 10-14.7% Sn content, plural bundles in which ...

PURPOSE:To manufacture super conductor wire composed mainly of Nb3Sn, by opening hole having rectangular cross-section to CuSn alloy billet, packing Nb therein, then working said billet degressively, inserting it again into CuSn alloy and working degressively said alloy. CONSTITUTION:Rectangular hole having >=1.5 aspect ratio is opened to a CuSn alloy matrix 1 composed of 10-15wt% Sn, and the bala...

A drilling system comprises a drill string (1) incorporating inbuilt tubular conductors (25), a mud supply passage, and passages for protective or other fluids. The drill string can be advanced by selectively actuable pistons (51,60) exposed to drilling mud flow, by electrically driven traction units (71,74) engaging the drill hole wall or by a linear electric motor element (82) co-operating with ...

Polymer compositions and methods of making them are provided. Selected surface layers of the polymers, integral with the polymer body, possess pressure sensitive adhesive properties. The polymers are cured with the selected surfaces in contact with a cross-linking inhibition agent which controls the amount of cross-linking of the polymer taking place at the surface. The polymers are useful as, or ...

An electric shaver comprising a shaver housing comprising a generally rectangular box-like casing and a head casing removably mounted on one end of the box-like casing; a finely perforated stationary shear foil replaceably mounted on the head casing; a reciprocable blade assembly positioned inside the head casing and outside the box-like casing and cooperable with the stationary shear foil to cut ...