Device to stiffen and keep apart annular discs secured in rotation to the rotor shaft of a hammer mill. U-shaped edge elements 6 are mounted on the periphery of annular discs 2, which they straddle by their wings 11. The back 7 of one element rests on the back of the neighbouring element. Each back 7 has a recess for accommodating and rotating the hammers 4, mounted so as to be able to rotate and ...

A method for the production of frames from rigid plastic profiles for use on refrigerator cabinets and in particular on chest freezers, which comprises forming the plastic profiles, mitering and welding the edges of the plastic profiles to form a frame having sharp-edged corners, and rounding at least one of the sharp-edged corners by means of thermo-forming. The invention also comprises the finis...

: The invention relates to a system for determining fiber orientation in a stationary or moving web of fibers. It comprises a light source, means for focusing a small light spot onto the surface of the web resulting in an ellipse-shaped spot on the opposite surface of said web, an array of light-sensitive elements positioned on the other side of the web, parallel and at a predetermined distance th...

Transport and conveying apparatus for prawns comprises conveying equipment (1) for prawns and a feeler device (8) with a feeler element (10) which is pivotably mounted to rotate about an axis (12) parallel to the path of the prawns and which is cyclically lowered onto the prawns before conveying on for processing. That part of the feeler element (10) which comes into contact with each prawn is in ...

A polyurethane is disclosed which can be used in particular for the production of articles intended to be in contact with blood, characterized in containing a macromolecular chain comprising nitrogen atoms in the form of quaternary ammonium groups, to which molecules of heparin are bonded, these nitrogen atoms originating from polymers consisting of q recurring units of the formula:

A keyboard interface for a data processing system in which a keyboard (6) and a data processing unit (8) are connected through a single clock line (4) for transmitting a keyboard out clock signal and a single data line (2) for transmitting a serial bit frame having a serial scan code identifying a depressed key in synchronism with the clock signal is disclosed. The interface uses a transmission er...

L'invention concerne un dispositif de surveillance de véhicules en stationnement sur un parking, qui comprend, pour chaque emplacement, une borne fixe 1, une tête détectrice mobile 4 reliée à la borne fixe 1 par un câble souple 3 et conçue pour pouvoir être fixée temporairement, de façon inviolable, à un véhicule 2 à surveiller de façon à détecter d'éventuels actes de malveillance dont celui-ci...

Logging equipment for use in a borehole has a sensor such as an ultrasonic sensor, oriented radially towards the wall of the borehole and rotatable in one direction during measurement about the longitudinal axis of the equipment. In order to allow the sensor to be recalibrated downhole, the equipment also includes a target which is automatically brought face to face with the sensor upon reversal o...

The invention relates to the manufacture of urea-formaldehyde condensation polymers containing sulpho groups. The starting material is a urea-formaldehyde precondensate, and a condensation polymer of naphthalenesulphonic acid and formaldehyde is used as the acid catalyst for the subsequent polycondensation of the urea-formaldehyde precondensate. The peculiarity of this polycondensation is that the...

The process for the production of closed-cell, extra soft polyvinylchloride foam plastics having improved volume stability at elevated temperatures. The process includes heating a plastisol or plastigel comprised of a plasticizer and foaming agent containing polyvinyl chloride or vinyl chloride copolymerizate in a pressure mold at a pressure of up to 300 atm. to a temperature of 150 DEG to 180 DE...

Bodies of slaughtered animals are automatically cut into pieces using a turntable with positioning units for the bodies of parts of them. Means are included to determine the position on the body, while mechanisms mounted in a circle round the turntable cut through the body in the positioning unit. Each of these units has two or more parts whose height is opt. adjustable. There can be three such ...

PURPOSE:To simply advance crosslinking reaction and to obtain a crosslinked polyolefin by irradiating a mixture of a polyolefin containing an alkenylsilane at the main chain and a polyolefin with radiation. CONSTITUTION:A mixture of >=0.1wt.% copolymer 0.001-30mol%, preferably 0.1-10mol% alkenylsilane (e.g., vinylsilane or allylsilane) and an olefin (e.g., ethylene or propylene) and a polyolefin i...

PURPOSE:To suppress an increase quantity of the whole operation stroke to the minimum, by varying a lever ratio in accordance with a variation of a load, in an intermediate lever device which is inserted on the way of a parking brake cable. CONSTITUTION:In the beginning of operation, a lever 38 turns round a pivot 36, and transfers an input from an input cable 6, to an output cable 8. Subsequently...

A transmission control apparatus for an infinitely variable transmission in which a transmission operating amount is selected by a transmission operating amount selecting system from a memory stored table based on transmission control information from transmission control information detectors which detect the transmission control information such as a throttle opening position command signal, etc...

Composition for the preparation of primer coats essentially for plastic materials based on unsaturated polyster resins, characterised in that it comprises at least one addition-polymerisable monomer chosen from the group of those containing an ethylenic unsaturation, at least one support vehicle capable of diluting the monomer and optionally a catalyst system, especially of redox type. Application...

La présente invention concerne un procédé et un dispositif de mesure de subsidence permettant d'évaluer la distance qui sépare des repères radioactifs préalablement implantés dans les parois d'un forage. Le dispositif est formé d'un corps allongé 5 comprenant au moins deux ensembles 10, 11 de détection nucléaire espacés selon l'axe longitudinal du corps; chaque ensemble de détection comprend au...

La présente invention concerne un procédé et système pour la commande à distance de marchandises et la mise à disposition de celles-ci dans un local de vente prédéterminé.

Le procédé est caractérisé en ce qu'il consiste notamment à effectuer la commande de marchandises par serveur 13 ou téléphone 14 en transmettant préalablement au dispositif ordinateur 1 au moins le numéro du client et l...

Ce boîtier est caractérisé en ce qu'il comporte une plaque de fond 14, un couvercle 15, un circuit imprimé 17 disposé sur l'une des faces de la plaque de fond, au moins un connecteur de raccordement 20, 21 comportant des broches de liaison 24, 25 du circuit disposé dans le boîtier au reste des circuits du véhicule, les broches 24, 25 s'étendant dans la plaque de fond 14, l'une de leurs extrémit...

Method for the permanent mutual connection of the ends of at least two already finished metal tubes (1,2,3), consisting in placing the ends of said tubes in a mould, particularly an injection moulding mould, whereby one tube end or several tube ends is or are arranged around a tubulous part of a metal body (4), closing the mould and filling the mould with liquid plastics material, so that after th...