Abstract: Disclosed are devices for connection between a canvas and a rail defining a path of direction. The device includes a part mounted to move with respect to the rail on the path; a part; a unit for securing this part with a point defining a direction; and a unit for rotatably mounting the part with respect to the part about an axis such that the part is able to take all positions between a first position and a second position, the first position being defined so that the direction makes, with the axis, a second non-zero angle and the position being defined so that the direction is parallel to the longitudinal axis.

Abstract: The ancillary tool according to the invention comprises a handle for manipulating an acetabulum provided, in its distal part, with a head for gripping the acetabulum and, in its proximal part, with a surface for application of a force of impaction. The tool further comprises at least one added endpiece adapted to be removably connected to the distal end of the handle. This endpiece defines both a face for wedging the acetabulum and an opposite face for interaction of the endpiece with the head of the handle, these faces both being borne by a radially deformable supple ring. The invention is particularly applicable to the positioning of an acetabular prosthesis in an anatomical or prosthetic cavity of a patient's hip.

Abstract: The ancillary tool according to the invention comprises a handle for manipulating an acetabulum provided, in its distal part, with a head for gripping the acetabulum and, in its proximal part, with a surface for application of a force of impaction. The tool further comprises at least one added endpiece adapted to be removably connected to the distal end of the handle. This endpiece defines both a face for wedging the acetabulum and an opposite face for interaction of the endpiece with the head of the handle, these faces both being borne by a radially deformable supple ring. The invention is particularly applicable to the positioning of an acetabular prosthesis in an anatomical or prosthetic cavity of a patient's hip.

Abstract: An ancillary tool and method for manipulating and implanting a prosthetic acetabulum including a tool provided, adjacent a distal part, with a head for interacting with an endpiece that is used for gripping the acetabulum and, in its proximal part, with a surface for application of a force along the handle. The endpiece is preferably removably connected to the distal end of the handle. The endpiece includes an elastically deformable ring having an outer face for expanding radially outwardly to initially grip the acetabulum and an opposite face for interaction with the head of the handle, such that upon a force being applied to drive the head into a cavity of the endpiece, the ring is radially expanded to expand the acetabulum in place after which the ring elastically returns to its original shape as the head is removed from the cavity.

Abstract: The ancillary tool according to the invention comprises a handle for manipulating an acetabulum provided, in its distal part, with a head for gripping the acetabulum and, in its proximal part, with a surface for application of a force of impaction. The tool further comprises at least one added endpiece adapted to be removably connected to the distal end of the handle. This endpiece defines both a face for wedging the acetabulum and an opposite face for interaction of the endpiece with the head of the handle, these faces both being borne by a radially deformable supple ring.

Abstract: A simulator including a pedestal in the form of a receptacle and a platform rotatably mounted on the pedestal. The platform includes means for receiving a sail mast. The rotation of the platform with respect to the pedestal is dampened by damping means.

Abstract: Process and device for hydrolyzing cellulose material in an extruder with two parallel screws in which the material introduced in the moist condition and, transported by the screws is malaxated, heated to a temperature of above 200.degree. C. in the downstream part of the extruder where it is contacted with an acid solution and progressively compressed, to a pressure higher than the saturated vapor pressure of the liquid phase of the hydrolyzed material at the temperature reached in the downstream part and maintained by a control device for the evacuation of the material.

Abstract: Method for supplying fuel material to a gasification reactor into which a mixture of finely powdered fuel material, in suspension in a liquid phase, is charged inside a pressurized combustion chamber into which the combustion-supporting gas is injected and constituting the reactor, by means of a screw conveyor producing a continuously fluid-tight plug by compression of the driven material. By intermeshing at least two overlapping screws with identical threads rotated in the same direction, a wringing of the mixture introduced through an input orifice is compressed by regulating the flow rate of the mixture supply and the rotary speed of the screws so that, for a given flow rate of material, the plug constituted in a braking zone is at a given pressure and contains a certain proportion of liquid phase. The additional amount of liquid phase is expelled into the braking zone and reascends upstream into a drive zone where it is removed through orifices formed in filtering parts of a sleeve.

Abstract: A side lasting machine having a last support, for supporting a last bottom uppermost, and two side lasting assemblies, arranged one at each side of the last support, each assembly comprising a plurality of lasting elements (fingers), a plurality of clamp pads arranged beneath the fingers, and depending from each finger and interposed between the pads and the upper, a plurality of lasting bands. In operation, the pads hold the bands against the upper under a pressure sufficient to allow slipping between the bands and the pads, while causing the bands to apply a drafting force to the upper. As the fingers move inwardly, they draw the bands upwards so that the upper is updrafted before the lasting margin is secured to the insole. The fingers, in the rest condition, are spaced above the level of the last bottom and move downwardly thereonto as they are moved inwardly, thus avoiding the need to set their heightwise position for different styles of shoe.

Abstract: A casing for the n intermeshing screws of a treatment machine has an internal wall comprising n adjacent cylindrical sectors each subtending an angle A, having a radius r, and covering one screw over that part of the periphery which is outside the penetration zone of the screws. The casing is made from n shells, each of which has an internal face in the form of a cylindrical sector of radius r and subtending an angle B, which is less than A, and n guide bars, each of which possesses two concave faces forming a V and which are in the form of cylindrical sectors of radius r and subtending an angle ##EQU1## and the axes of which are parallel and spaced apart by a distance e equal to the distance between the axes of the screws. Each shell is fixed to two guide bars in such a way that its axis coincides with the axes of the corresponding concave faces of the said guide bars.

Abstract: The continuous treatment of a cellulosic material in the form of chips to produce at least partial delignification of the material without true mechanical grinding is effected in apparatus comprising two parallel meshing screws which are rotated in the same direction in a sheath and have identical threads providing a plurality of zones of different pitch. The material is passed in succession through a first zone for feeding the material downstream, a first braking zone for causing a first compression of the material, a second zone for feeding the material downstream and in which the material is brought into contact with a reagent, e.g. steam or a chemical reagent, and a second braking zone for causing a second compression of the material.

Abstract: In the continuous production of paper pulp from ligno-cellulose raw material, the raw material is subjected to grinding and/or delignification by passing it in the form of small pieces between interpenetrating helicoidal surfaces driven synchronously in rotation inside a casing. The pitch of the helicoidal surfaces is arranged to provide at least one supply zone in which the material is driven downstream by rotation of the surfaces and at least one braking zone in which the material is braked.

Abstract: A device for degassing plastic materials comprising an extruder including at least three parallel screws intermeshing in pairs, arranged in a casing which follows the periphery of the screws and arranged around a central stem, the surface of which also follows the periphery of the screws so that the screws are encased over a substantial part of their periphery. The casing is provided with a supply inlet, an end plate through which degassed material is extruded and a degassing outlet through which gases are withdrawn, the degassing outlet being upstream with respect to the supply inlet.