A hammer mill for batchwise operation has a mill housing having a perforated screening plate intended for discharging a fine fraction of the milling material. A coarse fraction of the milling material is emptied through an emptying flap. A supply shaft opens tangentially into the milling chamber. The supply shaft is closed by a movable closure wall. In order to maintain short consistent treatment ...

PURPOSE: To produce a steel having excellent swelling resistance, internal pressure creep rupture strength or the like by dispersing yttria into a ferritic metal mother phase having specified components and specifying the content of yttria and the content of excess oxygen. CONSTITUTION: The compsn. of a steel is composed of, by weight, 7 to 18% Cr, 1/2W+Mo; 0.1 to 3%, 0.10 to 1.0% Ti, and the bala...

Integrated skin foam based on thermoplastic resin has continuous structure. Also claimed is method for preparing foam.;

La présente invention concerne une mousse à peau intégrée, à base d'une résine thermoplastique de structure continue et son procédé de fabrication.

The calculator has a microprocessor and memory in a hand-held case. The microprocessor accepts data input and control signals, and drives a display panel. The data is entered at the keyboard or via a data connection to the telephone line. The microprocessor is programmed to perform a number of statistical analyses on the data provided. The user selects modes of analysis which predict the outcomes ...

The attendance monitoring system has a terminal (1) in each room to allow entry of attendance information. This is connected to the AC mains which act as a carrier to send the information to a central computer (3) which collates, records and displays the attendance information. The terminals are hand-held devices built round a microcontroller. The terminals have a keyboard and a display. A connec...

The differential (1) comprises an input movement crown wheel (3) solidly attached to the differential housing (2), enclosing on the one hand a satellite axle (7). The satellite acts via intermediary satellites first and second planetary systems (9,11). These transmit half of the motor's torque to each of the two driving wheels of the vehicle when they have sufficient adhesion on the road. The diff...

The process employs a specific unit (111) recognising the driver's style (economical, normal or sporty) and applying different laws for computation of the gear ratio (n) to be imposed on the transmission (113) by its control unit (112). The style is identified from information related to throttle opening ( alpha pap), road speed (v), engaged gear (N), engine load (Nmot), and use of brakes and acce...

PCT No. PCT/FR96/01865 Sec. 371 Date Aug. 11, 1999 Sec. 102(e) Date Aug. 11, 1999 PCT Filed Nov. 26, 1996 PCT Pub. No. WO97/21214 PCT Pub. Date Jun. 12, 1997Optical reading device (1) for reading digital data from a reflecting medium (4), comprising a lighting source (8), means (10) for focusing the beam emitted by the source onto an area (S) of the medium, means (R) for receiving the light energy...

Composition pour empreintes dentaires qui comprend: (A) 100 parties en poids (pp) d'un organopolysiloxane ayant au moins 2 hydrocarbures insaturés aliphatiques dans une molécule; (B) 0,1-30 pp d'un organohydrogéno polysiloxane ayant au moins 3 H directement liés à Si dans une molécule; (C) 10-500 ppm, sur la base de (A) + (B), d'un composé du platine soluble dans la silicone; (D) 10-500 pp d'un...

The present invention provides a novel process for converting a standard inert amorphous calcium phosphate precipitate into highly reactive amorphous solids. The amorphous solids can be used to react with other calcium phosphate solids to form a poorly-crystalline synthetic hydroxyapatite that provides both bioactivity and structural integrity. This novel amorphous material can be reacted with oth...

The pallets have square hollow feet (2) to support the base (1), preferably at the corners. Two parallel side walls, preferably the two long side walls of the support feet, run parallel to one of the base edges, preferably the short edge.The other two parallel side walls, preferably the two short sides walls of the support feet, run parallel to another base edge, preferably the long edge. Preferab...

Un mécanisme d'étalement de faisceau optique comprend une série de lentilles (27, 28, 29) fixées de façon mobile à un chariot (30) d'un système d'imagerie pour faire varier l'étalement d'un faisceau optique et ajuster sa focalisation. Un moyen de balayage est lui aussi fixé au chariot pour réfléchir le faisceau optique venant d'un support disposé à l'intérieur d'une chambre d'exposition ou alla...

Un système d'imagerie (10) destiné à former une image sur une surface (21) de substrat à plusieurs longueurs d'ondes d'imagerie comprend un module générateur remplaçable (36) de faisceau, un miroir tournant (34) et un dispositif de commande (26). Le module générateur de faisceau engendre un faisceau d'imagerie en fonction de signaux d'ordres de faisceau. La longueur d'onde du faisceau d'imageri...

Un dispositif de déplacement sur coussin d'air, préchargé magnétiquement, destiné à un système de mouvement d'un système d'imagerie inclut un chariot (30) pour déplacer un moyen de balayage (26) le long d'une poutre rigide (38) pour réfléchir sur un support (18) un faisceau optique d'amenée. Le chariot (30) inclut une paire de parois orthogonales (72, 72) pour venir en prise avec les surfaces o...

L'invention concerne un procédé et un dispositif de prise d'images numériques dans lesquels le temps d'exposition de l'objet à des rayonnements X ou gamma est contrôlé et optimisé de façon à réaliser, à chaque prise d'images, une image non-saturée et à minimiser la dose de rayonnements nécessaires pour réaliser cette image.
Application à la radiologie médicale et dentaire.

The present invention provides a novel process for converting a standard inert amorphous calcium phosphate precipitate into highly reactive amorphous solids. The amorphous solids can be used to react with other calcium phosphate solids to form a poorly-crystalline synthetic hydroxyapatite that provides both bioactivity and structural integrity. This novel amorphous material can be reacted with oth...

Mixtures for damping solide-borne sounds and vibrations in the earth and buildings, as well as damping structures realized therewith, where are provided two components only consisting of materials obtained from rubbish and a binder. In a preferred embodiment said two components consist of tire chips and aggregates, obtained from building rubble, whereas the binder is cement. The damping structures...

The invention discloses a method for obtaining a moulded object, with a thermoplastic resin base, having a modified surface. More particularly it discloses a method for modifying the surface of an object with a thermoplastic resin base during its manufacture by moulding techniques.;

La présente invention concerne un procédé d'obtention d'un objet moulé, à base de résine thermoplastique, ayant u...

Compositions and methods relating to cementitious compositions are provided. The addition of an amidoamine that is the reaction product of polyalkylenepolyamines and short-chain alkanedioic acids or reactive derivat ives thereof to cementitious compositions has been found useful in inhibiting the corrosion of ferrous metal articles in contact with said composition. The amidoamine is advantageously...

The method involves applying a deformation along the normal to metallised regions so that the parts (4) within the moulded region lie in a different plane to the surface of the connector. The support region of the chip is thus also in a plane between the other areas of the connector and the surface plane. The moulding is in a thermoset or thermoplastic around the chip. The inner parts are holed an...