Hauni-werke Korber & Co Kg.

Korber Ag

Gunter Wahle

Uwe Heitmann

Heinz Greve

Dieter Ludszeweit

Rolf Dahlgrun

Heinz-Christen Lorenzen

Willy Rudszinat

Alois Kasparek

Jurgen Gomann

Willi Filter

Wolfgang Steiniger

Gerhard Tolasch

Otto Erdmann

Erwin Oesterling

Herbert Berlin

Friedel Kruse

Horst Zessin

A continuous tow of filamentary filter material is advanced past a rotary applicator which delivers metered but variable quantities of a second filter material (such as granulated or pulverulent charcoal) into successive increments of the tow. The tow and the delivered second filter material are thereupon draped into a web of wrapping material to form a filter rod which is sub-divided into sections of desired length. The density and/or the mass of the filter rod or of successive filter rod sections is monitored and the results of such monitoring operation are utilized to regulate the rate of delivery of second filter material so that the mass or density of the rod remains constant. The draw resistance of the filter rod or of filter rod sections can be monitored to generate signals which are used to regulate the rate of advancement of the tow toward the draping station and to thus maintain the draw resistance at least substantially constant.

Method of and apparatus for making composite filter rod sections for use

Plain or filter cigarettes are tested at a first station by two or more testing devices each of which monitors the cigarettes for the presence or absence of a particular defect. The testing devices generate defect signals which are delayed by shift registers so as to ensure that the delayed defect signals are transmitted to a segregating mechanism which removes defective cigarettes from a path that is common to the satisfactory and defective cigarettes and delivers defective cigarettes to selected receptacles which are installed at a second station and each of which gathers only cigarettes exhibiting a particular defect. Actuation of a switch entails the removal of a selected number of samples from the common path for satisfactory and defective cigarettes, and such samples are gathered in an additional receptacle at the second station.

Apparatus for testing and classifying cigarettes or the like

One side of a running web of wrapping material of the tobacco processing industry is provided with adhesive by a nozzle which discharges a stream of minute droplets of liquid adhesive. The droplets are charged by a first electrode immediately after they issue from the orifice of the nozzle and the droplets of the stream are thereupon deflected relative to the running web by a pair of deflecting electrodes whose operation is controlled by an adjustable circuit so as to ensure that the application of adhesive can take place in accordance with variations of one or more parameters including the speed of the running web and/or the permeability of wrappers which are obtained from the adhesive-coated web.

Method of and apparatus for applying adhesive to a running web of

A composite tobacco stream which contains different types of tobacco is formed by converting fibrous material of a first type into a first succession of discrete batches and by converting fibrous material of a second type into a second succession of discrete batches. The two types of batches are thereupon shuffled in such a way that the resulting stream contains alternating batches consisting of first and second fibrous materials. The stream is equalized, draped into a web of cigarette paper and subdivided into cigarettes of unit length or multiple unit length. The shuffling step can be carried out on a rotating wheel-shaped conveyor or on a foraminous belt conveyor.

Method and apparatus for making a composite stream from fibrous material

A fluted drum transports filter plugs and pairs of plain cigarettes in successive flutes past two rollers which cause the cigarettes to move inwardly toward the respective plug. In order to ensure the establishment of a cavity between each cigarette and the respective end of the corresponding plug, each flute contains two distancing elements whose width matches the acceptable width of the cavities. The outermost portions of the distancing elements taper in a direction away from the bottom portions of the respective flutes to allow for convenient introduction of filter plugs and cigarettes which are held by suction during transport past the rollers and on to the station where the groups of coaxial and properly spaced-apart filter plugs and cigarettes are removed from their flutes.

Machine for the production of smokers' products with cavities between

A combination of production lines for the manufacture of filter cigarettes wherein the filter tipping machines form several groups. The number of groups exceeds by one the number of machines in a group. Each machine receives filter rod sections from one of two different pneumatic senders by way of one of two discrete pneumatic conveyors. Each sender has a hopper for sections and several pneumatic propelling units which deliver sections from the respective hopper into the corresponding conveyors. The possibility of feeding sections to each machine from either one of two discrete senders ensures that the machines need not be shut down in the event of malfunction of a given sender, of one of the two propelling units for a machine or of one of two conveyors for a machine. Receiving units between the discharge ends of the pneumatic conveyors and the magazines of the respective machines convert files of sections which issue from the pneumatic conveyors into rows and effect forcible admission of sections into the magazines.

Apparatus for replenishing the supplies of filter rod sections in the

A composite tobacco stream is built at the underside of the lower reach of an air-permeable belt conveyor below a suction chamber by showering tobacco particles of a first type into the corner between one marginal portion of the lower reach and a first sidewall bounding a tobacco channel at the underside of the lower reach, by thereupon showering tobacco particles of the first type into the corner between the other marginal portion of the lower reach and a second sidewall so that the particles form a first tobacco layer having a concave underside, by thereupon depositing a relatively narrow core consisting of tobacco particles of a different second type on the underside of the first layer midway between and spaced apart from the two marginal portions of the lower reach, and by thereupon showering tobacco particles of the first type over the core as well as over the marginal portions of the first layer. The core can be formed by showering tobacco particles of the second type directly against the central zone of the concave underside of the first layer, or by building the core on a separate conveyor and transferring the thus formed core onto the first layer.

Method of and apparatus for building a composite tobacco stream

A composite tobacco filler is formed in three stages by showering or otherwise depositing the particles of a first tobacco type at one side of a first air-permeable suction conveyor to form a narrow core one surface of which contacts the first conveyor; by thereupon depositing on the first conveyor a first layer which consists of another type of tobacco, which overlies the core, and whose marginal portions extend laterally beyond the core; by thereupon transferring the core and the first layer onto a second air-permeable suction conveyor so that the one surface of the core becomes exposed and the first layer directly contacts one side of the second conveyor; and by thereafter showering a second tobacco layer of the other type onto the exposed surface of the core and onto the marginal portions of the first layer to thus complete the formation of a filler wherein the core is completely surrounded by the material of the two layers. The core can be trimmed prior to formation of the first layer, the first layer can be trimmed prior to transfer onto the second conveyor, and the second layer can be trimmed on the second conveyor.

Method and apparatus for producing a composite tobacco filler

A homogeneous tobacco stream is built upon an air-permeable conveyor in a channel which is adjacent to one side of the conveyor and is bounded by two sidewalls. Particles of tobacco are admitted against the concave side of an arcuate guide wall, whose discharge end is adjacent to the channel and remote from the one side of the conveyor, together with streams of compressed air which accelerate the particles of tobacco and transport them toward and beyond the discharge end of the guide wall. The concave side of the guide wall has three guide faces each of which directs a discrete partial stream of tobacco particles against a different portion of the one side of the conveyor whereon the particles are retained by suction. The guide faces are staggered with reference to each other, as considered transversely of the direction of transport of tobacco particles at the one side of the conveyor, and terminate at edge faces beyond which the respective partial streams are propelled by inertia as well as under the action of the air streams. The partial streams of tobacco are directed against the two marginal portions of the one side of the conveyor adjacent to the respective sidewalls and against the central portion of the one side. Such partial streams impinge upon conveyor portions which are staggered with reference to each other, as considered in the direction or movement of the conveyor.

Method of and apparatus for building a tobacco stream

A spread out foraminous tow of tensioned filamentary filter material is transported through a housing between an upper and a lower rotating cylindrical brush. The upper brush propels atomized liquid plasticizer against the upper side of the tow whereby a certain amount of plasticizer penetrates through the tow and is gathered in the housing within the range of bristles on the lower brush which propels the gathered plasticizer against the underside of the tow. The rate of feed of plasticizer to the upper brush is varied in response to changes in the speed of the tow, and the brushes are arrested when the transporting rolls for the tow are brought to a standstill. The lower portion of the housing constitutes a trough which surrounds the lower half of the lower brush and from which the gathered plasticizer is evacuated when the brushes are idle.

Apparatus for applying atomized liquid plasticizer to a running tow of

Method of testing and classifying cigarettes or the like

A junction zone between the first and second sections of a conveyor system for sidewise transport of cigarettes or analogous rod-shaped articles communicates with the first opening of a reservoir which normally constitutes a surge bin for temporary storage of those articles which are delivered by the first section but cannot be accepted by the second section. The reservoir has a second opening which is normally separated from the first opening by a reciprocable partition but is free to discharge articles into a tray filling machine when the reservoir is filled to capacity and the rate at which the first section delivers articles continues to exceed the rate at which the second section removes articles from the junction zone.

Apparatus for transporting rod-shaped articles of the tobacco processing

The magazine of each of an entire battery of filter tipping machines receives filter rod sections by way of two discrete pneumatic conveyors whose inlets receive filter rod sections from discrete sources by way of pneumatic propelling units and whose outlets admit files of axially moving filter rod sections into discrete receiving units having devices for converting the files into rows and for forcibly feeding the rows into spaced-apart portions of the respective magazines below the upper surfaces of the supplies of filter rod sections in such magazines. Each propelling unit can be started or arrested independently of the associated propelling unit, and each receiving unit can feed filter rod sections at less than maximum capacity and/or intermittently.

Method of applying atomized liquid plasticizer to a running tow of

Filter cigarettes with multiplex filter mouthpieces wherein at least one filtering element constitutes an unwrapped filter plug having a reinforced porous peripheral layer are produced in a machine which is equipped with a perforating device for tubular envelopes connecting the mouthpieces to the respective plain cigarettes, or with a device for making holes in the web of wrapping material which is subdivided into uniting bands. The holes are provided in those portions of tubular envelopes which surround the reinforced porous peripheral layers. Filtering elements which constitute unwrapped filter plugs may be disposed at the free ends of the mouthpieces or adjacent to the plain cigarettes.

Growing community of inventors

Reinbek, Germany

Gunter Wahle