Security devices are widely used for guarding spaces or areas (for example outdoor areas), with detectors monitoring different planes. It is a requirement for a good operation of a security device that the risk of false alarms should be reduced to a minimum. Each plane is subdivided into several subplanes in that the detector for each plane is provided with several sensors which are positioned so ...

An on-line method of inspecting an apertured mask sheet (10) to be formed into a shadow mask for a colour cathode ray tube is disclosed. In one of several embodiments described the mask sheet (10) is linearly scanned by a laser spot (32) transverse to the direction of advancement (30) of the mask sheet. The peak values of the grey levels of the laser light transmitted by the mask sheet are detecte...

To form a metal bead for a tire, two integral portions (5, 6) of a single length (3) of wire are wound in opposite directions about an axis (4) to form a bundle (2); and the free ends (7) of the two portions (5, 6) are positioned substantially coaxially and adjacent to each other along the outer periphery (10) of the bundle (2), and are connected integrally to each other to form a bead (2) with a ...

A heat-resistant nonwoven fabric composed of 95 mu 50 % by weight of heat-resistant fibers and 5 SIMILAR 50 % by weight of thermoplastic resin, in which said fibers are bonded to each other with said thermoplastic resin formed into pillar-like fusion bodies between these fibers, the fabric being excellent in heat resistance, moldability and covering function and comparatively low in density, t...

A nonwoven fabric, particularly composed by long-stock synthetic resin yarns such as polyethylene and polypropylene is provided at one or both surfaces thereof with an ink-setting layer formed by coating, drying and curing a resin composition containing some of acrylic resins, synthetic rubbers and polyester resins. The ink-setting layer is excellent in the transfer property and fixing ability to ...

In forming an electrode 2 on a silicon 6 oxide film 5 on a semiconductor substrate 4 through a silicon oxide film 5, for example, the gate electrode 2 is structured in a laminated structure of a plurality of polycrystalline silicon layers 6. The portion of the gate electrode 2 is formed by a method of manufacturing a thin film having a process of depositing amorphous layers and a process of crysta...

The invention provides a method of introducing a carbon-containing reinforcement material such as titanium carbide into an aluminium-containing melt by treating the reinforcement material with a wetting agent such as a K-Al-F slag, then contacting it with the melt so that it becomes incorporated into it, and casting the resulting reinforcement material-containing melt. The invention addresses the ...

A subterranean formation is treated with a particulate laden fluid whereby particulate flowback is reduced or prevented. The method includes the steps of providing a fluid suspension including a mixture of a particulate and a tackifying compound, pumping the suspension into a subterranean formation and depositing the mixture within the formation. The tackifying compound coats at least a portion of...

An additive combination for hydraulic cement compositions is provided which advantageously provides corrosion inhibition and set acceleration, in combination with a high level of fluidity and retention of fluidity over a desired period of time. The cement additive combination comprises an alkali or alkaline earth metal nitrite and a graft copolymer plasticizer comprising a polyether backbone and s...

PCT No. PCT/SE91/00672 Sec. 371 Date Apr. 23, 1993 Sec. 102(e) Date Apr. 23, 1993 PCT Filed Oct. 4, 1991 PCT Pub. No. WO92/05745 PCT Pub. Date Apr. 16, 1992.The invention relates to a method for treating the surface of surgical implants made of titanium or a titanium alloy, for instance dental implants, before implantation in bone tissue. The method results in a roughened exterior implant surface ...

A hydrotreating catalyst, useful in the production of lubricating oils from crude hydrocarbon oil stocks, comprises at least one Group VI metal, metal oxide, or metal sulfide, and at least one Group VIII metal, metal oxide, or metal sulfide, supported on a carrier wherein (A) the catalyst comprises from 10% to 35% by weight of combined metal, and the atomic ratio of the Group VIII metal to Group V...

The invention relates to a filter for the partial and at least temporary interruption of a vein. This filter comprises a channel (2) of polytetrafluoroethylene having, towards its distal end, longitudinal cuts distributed symmetrically on its periphery and delimiting flexible bands (6), and a conduit (3) of polytetrafluoroethylene inside the channel (2); the conduit (3) and the channel are made in...

In a piezo-control valve for fuel injection systems of internal combustion engines wherein a piezo-ceramic actuating rod is mounted with one end firmly to one end of a valve housing having a nozzle body with a valve seat disposed at the other end and a nozzle control needle is disposed in the nozzle body and pressed by the piezo-ceramic actuating rod onto the valve seat in the nozzle body when the...

PCT No. PCT/SE95/00272 Sec. 371 Date Sep. 10, 1996 Sec. 102(e) Date Sep. 10, 1996 PCT Filed Mar. 17, 1995 PCT Pub. No. WO95/25493 PCT Pub. Date Sep. 28, 1995An absorbent article having a front part (12), a rear part (14) and an intermediate crotch part (13), such as a diaper, an incontinence guard or like article. The article includes an absorbent body (1), a liquid-impermeable bottom sheet (7) jo...

Improvements are introduced in the adjustment of the motor speed in weft feeders for weaving looms, fo the type wherein a weft yarn reserve, formed of evenly and distinctly spaced turns, is wound on a rotary drum held stationary, by means of a winding arm caused to rotate by said motor, said yarn reserve being controlled by photoelectric means, positioned close to the yarn outlet end of said drum,...

PCT No. PCT/SE89/00101 Sec. 371 Date Nov. 3, 1989 Sec. 102(e) Date Nov. 3, 1989 PCT Filed Mar. 6, 1989 PCT Pub. No. WO89/08022 PCT Pub. Date Sep. 8, 1989.The invention relates to a method of erecting a carton blank, a tool (15) for carrying out the method and a carton blank (1) used in the method. As the blank (1) is pressed down by means of a plunger (17) into a forming space (18), its end walls ...

Compositions are described which are aqueous cleaning compositions for removing limescale on hard surfaces which comprise maleic acid, an acid which has a first pKa not exceeding 5, or mixtures thereof, and an acid-stable thickener. Said compositions exhibit improved limescale removal performance and improved surface safety when used to treat hard-surfaces. Said compositions are particularly suita...

Heterocyclic cpds of formula (I), and their salts are new n = integer from 0 to 3. W = gp of formula (i), (ii) or (iii). R = H or 1-4C alkyl, X = -0-, -S-, -NH- or -CH2-Y = 0 or S. The chiral centre inm (i) or (ii) is in its (S) or (R) form or is a mixt thereof in any proportion. Z = a gp of formula (iv), (v) or (vi), R1 and R2 are independently H or 1-4C alkyl. R3 = H or 1-4C alkyl. Also claimed ...

The arm-rest for detachably fastening to a seat e.g. wheelchair has two fasteners (5,4) joined together by a frame (6) and of which each has a locking device to give a positive locking connection to suitable mounts on the chair. The locking device for the second fastener is released by hand and that of the first fastener is released by swinging the frame around a pivot axis which is preferably hor...