Abstract: A smoking article comprises a distal end which, in use, contains a smoke producing substance. A proximal end has smoke drawn from it during smoking. At least one channel is provided which runs from the proximal end to at least part way towards the distal end. At least one vent hole is arranged such that an airflow path is defined through the vent hole, via the channel and to the proximal end of the smoking article. A smoke supplement composition is housed along the airflow path, such that, when the smoking article is smoked, air is drawn along the airflow path and over the composition so that the composition becomes air born and is delivered to the smoker.

Abstract: A container, for a compressed block of tobacco, the container comprising a rectangular bottom, front, rear and two side walls (15,16,17,18), of which at least the front, rear and side walls are formed of pliable, non-shape sustaining fabric, the front, rear and side walls each having along its upper edge a strip forming a flap (20) which is arranged to be folded inwards to provide a partial top wall, the flaps providing a tubular guide (11) containing at least one drawstring (21) which is/are exposed at notches (23,22) part-way along each of the front and rear walls and at the corners of the partial top wall, whereby the drawstring(s) may be pulled up at at least one of the portions exposed in the front and rear wall notches to pull the flaps inwards, and means (24) for readily connecting the portions exposed in the front and rear wall notches to hold the drawstring(s) pulled up to a predetermined extent.

Abstract: A container for transporting a compressed block of tobacco (18) comprises rectangular bottom top front rear and two side walls (2,4,1,3,5,6) which are formed of pliable sheets of non-shape sustaining fabric, such as woven polypropylene. The top wall (4) is connectable by a sliding clasp fastener (9,10,11,12) along three of its edges to the adjacent upper edges of adjacent walls.

Abstract: A container for transporting a compressed block of tobacco (18) comprises rectangular bottom top front rear and two side walls (2,4,1,3,5,6) which are formed of pliable sheets of non-shape sustaining fabric, such as woven polypropylene. The top wall (4) is connectable by a sliding clasp fastener (9,10,11,12) along three of its edges to the adjacent upper edges of adjacent walls.

Abstract: A smoker's pipe has a plastics bowl (17) and stem (16) and, within the bowl, a ceramic liner (18) having a flange (19) which overlies the rim of the bowl, and is secured thereto by a resilient ring (29) of adhesive.

Abstract: A smoking rod wrapper material has porosity apertures which are partially or fully blocked by a coating of a heat-removable, porosity-reducing composition. The composition melts as the burning tip of the smoking rod approaches to increase the porosity of the wrapper.

Abstract: A printing ink comprises a liquid vehicle, containing a binder, and a smoke-enhancing additive in the form of particles that are insoluble in the liquid vehicle and that have sizes in the range 5-80 microns, preferably at least 90% of the particles having sizes in the range 10-50 microns. The inks are printed onto the inner surface of a smoking rod wrapper in amounts such that the weight of dry deposits is in the range 20 to 60 mg per wrapper.

Abstract: A cigarette rod wrapper is cut from a paper web which is preprinted on its outer surface firstly with brand legend (33) and longitudinally spaced registration markings (32), and then on its inner face with a profiled deposit (34) of an additive such as a nicotine component. The registration markings (32) are used both to ensure longitudinal registration of the printed deposit (34), and in the rod making machine to ensure that the tobacco rod is cut at the correct position. The registration marking (32) is covered in use by a tipping wrapper (43) which unites the tobacco rod with a filter element (42).

Abstract: A material handling device such as a pump, including a first housing part 12 having an internal surface 12A surrounded by a peripheral surface 12B, 12C facing in generally the same direction as the internal surface. A substantially longitudinally inextensible flexible diaphragm has its periphery clamped on the first clamping surface by a cooperating second clamping surface 16B, 16C, the second housing part 16 carries a rotary member 17 on which are mounted three rollers 18. A chamber 10 is formed between the diaphragm and the internal surface. Upon rotation of the rotary member, the rollers sequentially urge the diaphragm onto the internal surface to form a constriction which traverses the chamber and moves the constriction from one port 13 to another port 14 formed in the first housing part.

Abstract: A cigarette with a tobacco rod (5,6) has at its buccal end a filter plug (10) and a hollow tubular core (8) with a cross wall (9) formed with orifices of a certain size and shape. Ventilating air drawn in through perforations (12) in a tipping wrapper (7) and through a porous inner wrapper (11) is mixed with smoke drawn through the tobacco rod and the mixture is sucked through the orifices (13) which promote particular mixing and pressure drop effects.

Abstract: A material handling device such as a pump, including a first housing part 12 having an internal surface 12A surrounded by a peripheral surface 12B, 12C facing in generally the same direction as the internal surface. A substantially longitudinally inextensible flexible diaphragm has its periphery clamped on the first clamping surface by a cooperating second clamping surface 16B, 16C, the second housing part 16 which carries a rotary member 17 on which are mounted three rollers 18. A chamber 10 is formed between the diaphragm and the internal surface.Upon rotation of the rotary member, the rollers sequentially urge the diaphragm onto the internal surface to form a constriction which traverses the chamber and moves the constriction from one port 13 to another port 14 formed in the first housing part.

Abstract: A catalyst support can be made by co-precipitating copper aluminate from a solution containing copper and aluminium ions and converting the precipitate into solid, generally particulate, form. The catalyst preferably includes a redox couple and may include promoters. The catalyst is of particular value for the low temperature oxidation of carbon monoxide, especially in a smoking product filter.

Abstract: In a cigarette tipping machine an apparatus for monitoring the size and position of cork patches (12) comprises a rotary knife (13) which cooperates with the surface of a rotary drum (11) to cut a strip (10) of material into a series of spaced patches (12). At the instant of cut a generator (15) produces a reference signal and when the leading edge of a patch passes an optical detecting head (14) a patch signal is produced. The reference and patch signals are processed in a circuit (16) and a fault signal is produced if the delay between the two pulses is outside an acceptable range.

Abstract: Cigarettes are formed by subjecting a three dimensional needled felt web of viscose fibres to a controlled pyrolysis, loading the felt web with smoking and combustion agents, cutting the felt web into strips and wrapping individual strips in a tubular wrapper.

Abstract: Catalysts for the low temperature oxidation of carbon monoxide to carbon dioxide, used in smoking product filters, are described. The catalysts are carried upon a support which should be microporous. The catalysts may include mixtures of tin or tin compounds with other catalytic material. The catalysts may involve a Redox mechanism. The catalysts exhibit resistance to deactivation caused by contact with water.

Abstract: The invention is concerned with a tobacco substitute which is made by subjecting a strand of viscose fibres to a controlled pyrolysis until the organic residue contains at least 90% carbon by weight, and loading the carbon strand with ingredients for smoking.

Abstract: A catalyst is made by impregnating a highly microporous support with a solution of a substance providing catalytically active material in a mixture of water and an organic liquid that reduces the surface tension of the solution. The preferred solution contains 20 to 50% water and 50 to 80% methanol.

Abstract: A catalyst is made by creating a deficiency of hydroxyl groups in a hydroxyl containing support and contacting the support, while thus activated with a solution of a substance providing a catalytically active material. Generally the catalyst is made by contacting the solution with freshly crushed pellets of, for instance, a zeolite.

Abstract: A wrapper for a smoking rod has screen printed on its surface a series of dots containing a volatile additive which is transferred into the main stream smoke when the smoking rod is smoked.