Abstract: A handheld cigarette making machine with a longitudinally sliding member that moves between a distal loading position for receiving loose tobacco and a proximal filling position having an adjustment member that enables the machine to fill cigarette tubes of two different tobacco-receiving portion lengths using a single length tobacco-receiving cavity and tamping member and a base for tabletop operation of the machine.

Abstract: A dispenser carton for cigarette tubes having a cutout shaped to outline a flap that is folded on one panel of the carton making it possible, after the cutout has been broken, to open the carton at the flap to access the tubes, while at the same time making it possible to re-close the carton by replacing the flap in its initial closed position.

Abstract: A dispenser carton for cigarette tubes having a cutout shaped to outline a flap that is folded on one panel of the carton making it possible, after the cutout has been broken, to open the carton at the flap to access the tubes, while at the same time making it possible to re-close the carton by replacing the flap in its initial closed position.

Abstract: A machine for manually making cigarettes having a frame, a pair of generally parallel rollers rotatably mounted to the frame with at least one of the rollers also being slidably mounted so that it may be moved laterally toward the other roller, and an endless belt trained over the rollers.

Abstract: The invention provides a machine for filling cigarette tubes, the machine comprising a spoon (120) receiving a load of tobacco and shaping it into a cylinder, an endpiece (210) on which a cigarette tube is placed, a clamping device (330) suitable for clamping such a tube onto the endpiece, and a slide (200) which carries said endpiece and which is movable in translation along the spoon (120), the machine further comprising an end abutment arrangement (130) for the tobacco, the arrangement being directed in such a manner as to hold the tobacco in the direction of the tube to be filled, the machine being characterized in that said abutment arrangement (130) comprises a contact piece (131) making contact with the tobacco, which contact piece is movable between at least two positions, one position in which said contact piece (131) occupies a portion of the tobacco-receiving zone in the spoon (120), and another position in which it leaves said portion empty, such that the extent of the fill of tobacco introduced i

Abstract: The invention provides a machine for filling cigarette tubes, the machine comprising a spoon (120) receiving a load of tobacco and shaping it into a cylinder, an endpiece (110) on which a cigarette tube is placed, a clamping device (330) suitable for clamping such a tube onto the endpiece, and a slide (200) which carries said endpiece and which is movable in translation along the spoon (120), the machine further comprising an end abutment arrangement (130) for the tobacco, the arrangement being directed in such a manner as to hold the tobacco in the direction of the tube to be filled, the machine being characterized in that said abutment arrangement (130) comprises a contact piece (131) making contact with the tobacco, which contact piece is movable between at least two positions, one position in which said contact piece (131) occupies a portion of the tobacco-receiving zone in the spoon (120), and another position in which it leaves said portion empty, such that the extent of the fill of tobacco introduced i

Abstract: An aqueous spacer composition, compatible with drilling muds and cement slurries including saline slurries, and application there of drilling oil and gas wells.Preferred spacer bases in accordance with the invention comprise a biopolymer of the type produced by Azotobacter indicus, a high molecular weight sulfonated styrene or toluene-styrene polymer, and a dispersing agent. This base fluid has no solid particles. The final spacer composition additionally contains a weighting agent (barite) and water. Total compatibility is provided with muds and/or cement slurries whether or not they are saline, together with excellent fluid loss controlling, rheological, and anti-settling properties. A wetting agent may be added to provide compatibility with oil-based muds.

Abstract: The invention concerns a new process for plugging and/or consolidating a permeable geological formation, notably when traversed by a borehole.The process, according to this invention, comprises the following steps: (a) insertion into the formation of an overdelayed gelling compound, composed of a gelable material and a hardener, for which the setting time is considerably longer than the suitable positioning time for the composition, in such a way that this permeates the formation over a significant distance. (b) insertion, after a mechanical or fluid plug, of a rapid-action gelling agent, which causes the instantaneous gelling of that part of the overdelayed gelling compound in the immediate neighborhood of the interface between the zone to be treated and the borehole. Thus preventing displacement of the overdelayed gelling compound toward the interior of the formation. The resultant gelling being both resistant and correctly placed.The invention application is to oil, gas, water or geothermal drillings.

Abstract: A lightweight cement slurry composition having a density in the range of 1.2 to 1.6, containing a solid extender agent and an SBR latex. The ratio of the liquid volume to the slurry volume should be less than 70% and preferably less than 63%. The lightweight slurry then presents a most attractive set of properties which could not be obtained previously, and in particular gas channelling is controlled.

Abstract: The invention relates to cement compositions for cementing wells, which allow pressure gas-channeling to be effectively controlled up to more than about 485.degree. F. The cement composition contains a styrene-butadiene latex and a stabilizer. The film of latex interrupts gas-channeling after an extremely brief path.