Abstract: An adhesive spray delivery apparatus and a method of applying a predetermined quantity of anchoring adhesive in a predetermined spray pattern to an advancing web of cigarette paper are disclosed. The apparatus includes a pressurized spray system under control of a programmable controller for precisely and uniformly applying the adhesive in an atomized spray to the advancing cigarette paper, thereby eliminating the need to increase the density of the tobacco rod at discrete intervals of the rod to compensate for a significant volume of loose ends. The apparatus is portable and may be retrofitted to existing cigarette makers.

Abstract: Tobacco material is extracted with an extraction solvent to provide a aqueous extract and a tobacco portion insoluble in the solvent. The extract is separated from the insoluble portion and is provided within the water at a concentration at least about 30 percent, based on the weight of the extract and solvent. The extract and solvent are subjected to temperature treatment including reducing the temperature of the extract and solvent from a first temperature to a second temperature. Potassium nitrate crystals form as a precipitate and are separated from the extract and solvent. Then, the extract and solvent are contacted with activated carbon particles and separated therefrom.

Abstract: Burley tobacco stems are extracted with tap water to provide a water soluble extract and a water insoluble pulp. The extract and water are separated from the pulp. The extract is provided within the water at a concentration at least about 30 percent, based on the weight of the extract and water. Then, the extract and water are heated to about 200.degree. F. The extract and water then is cooled to ambient temperature. Potassium nitrate crystals form as a precipitate and are separated from the extract and water.