ADJUSTABLE FILTER CIGARETTE AND A METHOD OF MANUFACTURE THEREOF

A filter cigarette which has provision for ready and simple setting, by the smoker of the air dilution level of the smoke, which cigarette comprises a tabacco rod which includes a charge of tabacco (1) wrapped in cigarette paper (3), and integral, axially aligned cylindrical filter plug (4), and tipping paper (8). In one embodiment, the filter plug is divided into first (6) and second (7) segments with the first segment being rotatable with respect to the second segment. Rotation of the first segment with respect to the second segment, in one embodiment of the invention, serves to vary the air dilution value of the cigarette. This is accomplished through the provision of cooperating openings (14) and (15) in the tipping paper (8) and plug surface wrapper (108) which are made to come into and out of varying degrees of registration as the first rotatable segment (6) of the filter plug (4) is turned thereby varying the mount of air which is introduced into the smoke on smoking. Also, by this means for varying the dilution, a cigarette having a variable resistance to draw is provided, and a cigarette which maintains a constantly changing level of resistance to draw as the air dilution value is varied. In yet another embodiment, an encapsulated flavorant is provided which is released responsive to rotation of the first segment with respect to the second segment. In another embodiment, the tipping paper is air transmissive, and the wrapping is substantially air impermeable and has a plurality of first longitudinally extending, substantially air impermeable depressions spaced about the circumference of the first segment which are registrable with corresponding second, longitudinally extending, substantially air impermeable depressions spaced about the circumference of the second segment, such that as the first segment is rotated relative to the second segment, the degree of registry of the first and second depressions varies, thereby admitting varying amounts of air to the filter. The above described invention eliminates complex mechanisms for use in adjustment of air dilution. Une cigarette à filtre offre la possibilité au fumeur de régler aisément et simplement le niveau de dilution dans l'air de la fumée, et comprend un boudin de tabac consistant en une charge de tabac (1) enroulée dans du papier à cigarette (3) et un filtre cylindrique solidaire aligné axialement (4), et du papier de bout (8). Dans un mode de réalisation, le filtre est divisé en un premier se