Abstract: The smoker's article comprises a filter, a tobacco rod and a wrapper. The tobacco rod contains a catalyst consisting of a hydrated zeolite or a zeolite-like molecular sieve, the said zeolite or zeolite-like material being defined by the following formula:M.sub.m' M'.sub.n' M".sub.p ?a'AlO.sub.2 .multidot.b'SiO.sub.2 .multidot.c'TO.sub.2 !q'Qwherein M is a monovalent cationM' is a divalent cationM" is a trivalent cationa', b', c', n', m', p and q' are numbers which reflect the stoichiometric proportions,m', n', p or c' can also be zero,Al and Si are tetrahedrally coordinated Al and Si atoms,T is a tetrahedrally coordinated atom being able to replace Al or Si andQ is a sorbate capable of passing the pore system of the zeolite,or of mixtures thereof. The said catalyst consisting of a zeolite or the zeolite-like material, enclosed in the tobacco rod is present optionally in the H form and has a thermally stable structure. The sorbate Q is mainly water.

Abstract: Three rows of feelers sliding in openings in support plates each bear either a blocking element with a single sight for the outside rows of feelers or a blocking element with two sights for the middle row. When all the feelers are in operative position, the various blocking elements define two parallel sight paths which permit a light beam conveyed to the entry of the first pass through one of the sights of the middle row blocking elements and through all the sights of the blocking elements of one of the outside rows to be reflected from two mirrors, disposed at right angles to each other, and to return by passing through the other sight of the middle row blocking elements and through the sights of the blocking elements of the other outside row. The light beam is conducted from an emitter to the entry of the checking device and from the exit thereof to a sensor by fiber optic cables.

Abstract: The invention concerns a method for producing a cigarette filter unit, in which filter elements are disposed on a porous or perforated covering strip and at least partially wrapped thereby and adhesively joined. The adhesive substance is applied to the covering strip along coating tracks which are at least approximately equidistant from each other and extended at an angle to the longitudinal orientation of the covering strip. The filter strand formed in this manner is subdivided by a cutting device.

Abstract: The invention concerns a method for producing a cigarette filter unit, in which filter elements are disposed on a porous or perforated covering strip and at least partially wrapped thereby and adhesively joined. The adhesive substance is applied to the covering strip along coating tracks which are at least approximately equidistant from each other and extended at an angle to the longitudinal orientation of the covering strip. The filter strand formed in this manner is subdivided by a cutting device.

Abstract: The invention concerns a method for producing a filter cigarette with a filter unit which is provided with a porous or perforated covering strip. A porous or perforated connecting strip joins the tobacco part to the filter unit. The adhesive for connecting the covering strip to the outside of the filter element on the one hand and the adhesive for connecting the connecting strip to the outsides of the filter unit and of the tobacco part on the other hand is applied on those surfaces on the one hand of the covering strip and on the other hand of the connecting strip which are inwardly oriented on the filter cigarette.

Abstract: The invention concerns a method for producing a cigarette filter unit, in which filter elements are disposed on a porous or perforated covering strip and at least partially wrapped thereby and adhesively joined. The adhesive substance is applied to the covering strip along coating tracks which are at least approximately equidistant from each other and extended at an angle to the longitudinal orientation of the covering strip. The filter strand formed in this manner is subdivided by a cutting device.

Abstract: Cigarette filter units are made in a long strip with alternate portions of fibrous and pourable filter material. The fibrous portions are first attached at spaced intervals to a sheathing strip which is wrapped practically right around them to form a cylinder with regular empty spaces between the fibrous portions and openings into the spaces. In a special unit, air is extracted from these spaces so that when the spaces enter a chamber containing pourable filter material, they suck the material in to fully fill the spaces. Excess filter material is brushed off the filter unit, and a sealing strip is stuck over the openings.

Abstract: The present invention relates to a new type of filter for tobacco smoke, which filter has a diffusion portion, in which the smoke stream is separated from the outer air by means of a membrane, which is permeable to low molecular smoke constituents.