To reduce the occurrence of false alarms, the disclosed system incorporates an auxiliary sensor (8) for detecting the presence of a shopper passing through the electronic article surveillance device (1), such that the device is operated continuously, and the auxiliary sensor (8) is used to enable external alarms of the device only upon detecting the shopper's presence. Thus, while the device conti...

PURPOSE:To keep the temperature of operating steam below a fixed value even when the temperature of waste heat excessively rises during the operation of a plant by providing a control system for adjusting flow rate of the operating steam passing through bypass systems incorporated in the steam generating plant. CONSTITUTION:A first bypass passage 19 provided with a first valve 16 to a beam passage...

PURPOSE:To enhance the durability of a frictionally engaging device by sequentially changing the recovery value of an engine torque which has been changed, in order to return the changed torque to its original value on a real-time base in accordance with a degree of progress of speed change. CONSTITUTION:There are provided a means for obtaining a degree of progress of speed change from a rotating ...

Air loaded with particles is driven in rotation by various means 10, 26 in a centrifuging chamber 2 in which the particles collect near its cylindrical wall 4. The upward movement of the particles thus collected is stopped in an extraction zone 36 by a rotating, descending auxiliary layer of gas formed by an injector 42, 44, 46. These particles leave through an orifice 40 and the purified (cleaned...

La présente invention concerne un dispositif de surveillance du fonctionnement d'un microcontrôleur ou microprocesseur caractérisé par le fait qu'il comprend : un oscillateur 100 qui délivre un signal de cadencement de fréquence constante et connue, un diviseur de fréquence programmable 200 qui reçoit en entrée le signal de cadencement et délivre à sa sortie un signal d'horloge HC dont la pério...

A motor brake unit comprising a housing member defining a fluid chamber disposed about the motor shaft of a motor, a shaft sleeve disposed within the fluid chamber nestingly engaging the motor shaft for rotation therewith, a first plurality of brake elements rotatable with the shaft sleeve, a brake collar secured to the housing member and disposed annularly about said shaft sleeve, a second plural...

An opto-electronic focussing-error detection system is described for detecting a deviation between a radiation-reflecting surface and a plane of focussing of an objective system in an optical imaging system. The detection system comprises a beam-splitting element and a radiation-sensitive detection system arranged behind the beam-splitting element and two groups of detectors. The first group is as...

Improved reinforced polyurethane/urea articles are made by reacting an organic polyisocyanate with low viscosity imino/enaminefunctional compounds in contact with fiberous reinforcing agents.

Method and apparatus making it possible to obtain a perforation of the wall of a well by the action of a tool, such as an explosive gun. Lowered into the well is a working assembly comprising a perforation tool (4) associated with a measurement housing (5), such as a logging probe and temperature and pressure sensors. The assembly (4, 5) is suspended by means of a connecting cable on a supporting ...

PURPOSE:To improve the yield and quality of a product by performing a swaging and extrusion on a metal material, forming a projection part at the inner side of an opening part by a drawing, then performing a forging formation via a punch and die. CONSTITUTION:A metal material 1 attaining to a product piston is subjected to a swaging in a columnar body 1', then the bottomed cylindrical body 6 havin...

PURPOSE:To form a film having a uniform thickness and uniform characteristics in a region of a relatively large area by irradiating a specified target with laser beams having a linear cross-sectional shape an depositing scattered atoms and/or molecules on a substrate. CONSTITUTION:Laser beams 1 are converged by a cylindrical lens 2 so that the cross-sectional shape is made linear and a target 3 ma...

PURPOSE:To attain the lowering of melting point and the precise composition control of Tl and to provide the material having high critical temp. at high probability by providing a composition incorporating Cs and similar to the superconducting material of Tl multiple oxide represented by a specific general formula. CONSTITUTION:This oxide superconductor material incorporates the multiple oxide rep...

PURPOSE:To increase critical temp. and critical current density by substituting a metal selected among Ti, Nb, Hf or Ta for halt or less of Cu in a Bi-Pb-Sr- Ca-Cu-O type oxide superconducting material and improving the crystallizability of a sintered body. CONSTITUTION:A substitutive element (M) selected among Ti, Nb, Hf and Ta is substd. for 1-50atomic% of Cu in an oxide superconducting material...

PURPOSE:To increase critical temp. and critical current density by substituting Mg, Ba, Cd or Zn for a prescribed percentage of Ca and/or Sr in a Bi-Sr-Ca-Cu- O type oxide superconducting material. CONSTITUTION:A substitutive element (M) selected among Mg, Ba, Cd and Zn is substd. for 1-70atomic% of Ca and/or Sr in an oxide superconducting material consisting of Bi, Sr, Ca, Cu and O as constituent...

PURPOSE:To yield a good electrical contact with an oxide superconductor with high reproducibility by forming an oxide layer on the oxide superconductor, the oxide layer mainly comprising silver oxide or gold oxide, and heat-treating the oxide layer at a dissociation temperature of the oxide or more to form a metal layer. CONSTITUTION:An oxide superconductor layer 2 is formed on a Sr titanate cryst...

PURPOSE:To granulate the title resin having hygienic properties, safety, dispersibility, fluidity, etc., useful as sanitary materials and agricultural and horticultural parts by blending powder of highly water absorbing resin having adjusted water content with powder of water-soluble polymer compound and drying. CONSTITUTION:Preferably, first powder of highly water absorbing resin (preferably powd...

A machinery operation involves the steps: 1) inputting into a computer statistical past-performance information representing, in relation to each job, the speed at which the machine was run, together with run length of the job, and optionally at least one or more of a) information representing the difficulty of the job; b) information representing the operator in relation to the job; c) informatio...

Méthode et dispositif permettant d'obtenir une perforation de la paroi d'un puits par action d'un outil tel qu'un canon à explosifs.

On descend dans le puits un ensemble d'intervention comportant un outil de perforation 4 associé à un boîtier de mesure 5 tels qu'une sonde à diagraphie et des capteurs de température et de pression. L'ensemble 4, 5 est suspendu par un câble de liaison à un ...

Magnetisable microspheres consisting of a polysilsesquioxane lattice and distributed uniformly inside the lattice of magnetisable fillers chemically bonded to polysilsesquioxane units. They are prepared by dispersion in a solvent of an aqueous suspension of magnetisable fillers not coated with dispersing agent, dissolving an alkoxysilane or an alkoxysiloxane in the organic phase, polycondensa...

Fire-retardant expandable vinyl aromatic polymer beads are prepared by an aqueous suspension method whereby a bromophenyl allyl ether fire-retardant agent and a volatile aliphatic hydrocarbon foaming agent are incorporated into particles of a thermoplastic such as polystyrene. The beads are useful in the preparation of molded foam articles having excellent resistance to flame.