US2269598A - Tobacco machine for forming continuous tobacco rods or fillers - Google Patents

Tobacco machine for forming continuous tobacco rods or fillers Download PDF

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Publication number
US2269598A
US2269598A US260174A US26017439A US2269598A US 2269598 A US2269598 A US 2269598A US 260174 A US260174 A US 260174A US 26017439 A US26017439 A US 26017439A US 2269598 A US2269598 A US 2269598A
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United States
Prior art keywords
tobacco
passage
conveyor
stream
confining
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Expired - Lifetime
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US260174A
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English (en)
Inventor
Molins Desmond Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Molins Machine Co Ltd
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Molins Machine Co Ltd
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Publication date
Priority claimed from GB964538A external-priority patent/GB514162A/en
Application filed by Molins Machine Co Ltd filed Critical Molins Machine Co Ltd
Priority claimed from GB1395839A external-priority patent/GB528601A/en
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Publication of US2269598A publication Critical patent/US2269598A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • A24C5/1807—Forming the rod with compressing means, e.g. garniture

Definitions

  • This invention is for improvements in or relat ing to machines for forming a continuous tobacco rod or filler, such for example as in continuous rod cigarette making machines or in tobacco packaging machines in which a continuous tobacco filler is formed, but in which such filler is of a larger cross-section than is a filler of a continuous rod cigarette making machine, and this larger filler is severed into sections or lengths for subsequently inserting into packages.
  • mass it shall mean weight per unit length considered lengthwise of the filler or the tobacco fed, and the term desired mass shall be taken to mean the weight, or substantially the Weight, per unit length which it is desired that the continuous tobacco filler shall have.
  • continuous tobacco filler when used herein means a rod-like stream of tobacco of a cross-section comparable with that included within a wrapper (for example, the paper wrapper of a cigarette) which is finally to contain the filler, which rod-like stream is'continuously moved lengthwise of itself, and the expression is not to be taken as limited to a filler of any given length or even to the final filler which is severed into sections, since the filler after being formed in accordance with the present invention may be subjected to further treatment, which further treatment forms no part of 55 the present invention.
  • compacting due to change in momentum can occur either on the endless band which feeds the tobacco into the passage and which also 11' forms a part of the confining passage or the compacting can occur on the paper web. Since the position at which compacting occurs in the passage depends on the quantity of tobacco entering the passage at a given instant the compact- 2 ing may sometimes take place at a portion of the passage where the paper web forms part of the bottom wall and sometimes at a .portion'ofthe passage where the endless band forms part of the bottom wall. Thus it will be seen that compacting in the passage may be efiected under different conditions according as to whether compacting takes place where the tobacco is on the endless band orwhen it is on the paper web.
  • the conveyor which feeds the tobacco to the confining passage at a greater linear speed than that at which it is taken away from the passage is wholly external to the confining passage in which the tobacco is to be compacted due to this reduction of speed.
  • the confining passage is of a length such that it extends on each side of the point of compacting of the tobacco and the compressed tobacco stream is controlled by means of guides, including movable side guides which latter are movable in the same direction as and at substantially the same linear speed as the conveyor which feeds the tobacco into the passage.
  • All the guides are arranged to extend lengthwise of the conveyor and to co-operate therewith wholly to confine and to compress the stream of tobacco to a cross section smaller than that of the passage and to retain the stream in said compressed state:up to or substantially 'up to the point at which it enters the confining passage.
  • the compressed tobacco has sufficient rigidity to ensure that compacting is efiected within the confining passage and since according to the present invention the conveyor feeding tobacco into the confining passage is wholly external thereto, moving surfaces are arranged to engage a suflicientlylarge portion of the periphery of the compressed tobacco to impart sufficient driving power to the tobacco to permit axial compacting to be efiected in the confining passage in such a way as to cause the tobacco to build up in the passage, and by providing side guides moving in the same'direction as and substantially at the same speed as the conveyor feeding tobacco into the confining passage such a result can be obtained. These side guides may be part of the conveyor'itself, as for instance when the conveyor is of U formation.
  • the upstanding limbs of the U may constitute the moving side guides.
  • the top guide opposed to the surface of the first conveyor may comprise amember having a stationary tobacco engaging surface.
  • the first conveyor may comprise an endless band and that part of the band which supports the tobacco stream may be folded substantially to U form whereby the upstanding limbs of the U provide movable guides for the tobacco stream.
  • a top endless guide band may be mounted for movement above the first conveyor and between the upstanding limbs of the U formed thereby, that part of the guide band which is opposite to the base of the U formed by the first conveyor being movable in the direction of movement of the first conveyor and disposed at a distance from the base of the U such that the tobacco on the first conveyor is compressed between the first conveyor and the guide band.
  • a rigid member which determines the maximum distance of the tobacco engaging portion of the top endless guide band from the first conveyor.
  • a fluid is preferably circulated through the stationary members for the purpose of cooling. such members and the moving guides engaged thereby.
  • apparatus for forming a continuous tobacco filler comprising a confining passage in which a stream of tobacco is compacted to the cross-section of thepassage, a first conveyor to feed a stream of tobacco into the passage, movable guides, which guides include a guide opposed to the first conveyor and comprising an endless band, extending lengthwise of the first conveyor and co-operating with the first conveyor to compress the stream of tobacco, a
  • Figure 1 is a side elevation, partly in section, of apparatus for forming a continuous tobacco filler.
  • Figure 2 is a plan of Figure 1.
  • Figure 3 is a section on the line 33, Figure 1, and is drawn to an enlarged scale.
  • Figure 4 is a section on the line 4-4, Figure l, and is drawn to an enlarged scale.
  • Figure 5 is a side elevation of a modified form of apparatus for forming a continuous tobacco filler.
  • Figure 6 is a side elevation, partly in section, of a further modified form of apparatus for forming a continuous tobacco filler.
  • Tobacco is fed by any suitable tobacco feeding mechanism and is showered so as to be directed downwardly on to the surface of a first conveyor '6 comprising a continuously movable endless band.
  • the tobacco receiving portion of the first conveyor is supported by a stationary rigid member comprising a trough l which is so arranged that the endless band 6 is. folded by the walls of the trough to substantially U form.
  • the endless band 6 form guides for the stream of tobacco which is formed on the first conveyor by tobacco particles received from the shower of tobacco.
  • a top endless guide band 8 which extends lengthwise of the first conveyor and is arranged so that that part of the guide band 8 which is opposed to the base of the U formed by the first conveyor 6 is movable in the same direction as the first conveyor 6 and at the same speed as the speed of the first conveyor.
  • the endless guide band 8 is disposed above the first conveyor at a distance such that a given portion of the tobacco stream on the first conveyor 6 is subjected to a compression which is applied laterally of the direction of movement of the stream by the co-operation of the U shaped first conveyor and the. moving endless guide band 8. Due to the fact that the band 8 extends lengthwise of the first conveyor, the. tobacco is subjected to a continuous compression for the purpose of obtaining the necessary rigidity of the tobacco to enable it to enter a confining passage H) (described later) in its compressed state.
  • a stationary rigid member comprising a fixed plate or shoe 9 is located behind the endless guide band 8 at the region where the latter engages the tobacco, and the member 9 determines the maximum distance of the tobacco engaging portions of the endless band 8 from the first conveyor.
  • the guide band 8 is arranged between the upstanding limbs of the U formed by the first conveyor 6 so that the. tobacco stream is substantially wholly confined by the first conveyor and the top endless guide band.
  • the compressed stream of tobacco is fed by the first conveyor 6 and its co-operating moving guides into a confining passage H) in which the tobacco is compacted in the direction of movement thereof to a cross-section determined by the walls of the confining passage.
  • a second conveyor l I is provided to move the tobacco from the outlet of the confining passage, and the second conveyor moves at a linear speed which is less than that at which the first conveyor 6 is
  • the second conveyor ll comprises an endless web of cigarette paper which passes over a roller l2 and which is supported by an endless band 13 which later cooperates with folding mechanism, not shown, arranged to fold the paper Web about the continuous tobacco filler supported thereby.
  • the first conveyor 8 is moved at a sufficiently high speed in relation to the second conveyor H that the mass of tobacco on the first conveyor 6 is at all points or substantially all points below the desired mass.
  • the tobacco feeding mechanism is of course arranged to feed a sufiicient quantity of tobacco to form a continuous tobacco filler of the desired mass on the second conveyor.
  • the confining passage Ill through which the tobacco passes is so arranged that the momentum of the tobacco is reduced in the passage and the length of the confining passage is, considered in the direction of movement of the tobacco therethrough, so chosen that the passage extends on either side of the point of compacting of the tobacco, since the point of compacting varies from time to time due to the fact that the compressed stream of tobacco fed into the confining passage is at some points of greater mass than at other points.
  • the tobacco is compressed and is controlled in its compressed state up to or substantially up to the confining passage so that it may the shoe 9 around which the guide band 8 passes are positioned as closely as possible to the inlet of the confining passage, see Figure 1, and, as can be seen from Figure 1, the band 8 extends for a short distance beyond the point at which the first conveyor 6 passes around the roller I4.
  • a bridge piece 16 over which the tobacco stream passes from the conveyor 6 into the inlet of the confining passage H].
  • a pair of short stationary guides 24 are provided to guide the tobacco stream over the bridge l6 as the conveyor 6 flattens out over the roller 3.
  • the length of the bridge piece It is reduced to the minimum possible.
  • the top wall of the confining passage I is arranged as closely as possible to the endless guide band 8, and as shown in Figure l, a part I! of the top wall of the confining passage is arranged to scrape the endless guide 8 so as to remove particles of tobacco which may adhere thereto.
  • the second conveyor H comprises the whole of the bottom wall of the confining passage.
  • the second conveyor II is wholly external of the confining passage l0 and is arranged to be as close as possible to the outlet of the confining passage.
  • the bridge piece H5 is not employed, but the bottom wall of the confining passage is, as can be seen from Figure 5, in close proximity to the roller l4 around which the first conveyor 6 passes.
  • a bridge piece I8 is, however, provided between the outlet end of the confining passage l0 and the roller l2 around which the second conveyor ll passes.
  • roller I9 which is located at the outlet of the passage and which is movable with the same surface speed as that of the second conveyor so as to assist the continued forward movement of the tobacco issuing from the confining passage H].
  • the periphery of the roller I9 is preferably shaped, for example the periphery is concave.
  • the confining passage is made as short as possible to reduce the tendency to choke, but long enough to ensure that the point of axial compacting occurs within the passage.
  • the cross-sectional area of the passage is greater than the cross-sectional area to which .the tobacco is compressed by the co-operating bands 6 and 8.
  • the height of the hand 8 above the first conveyor 6 is preferably made 6 millimetres and the distance between the upstanding limbs of the U formed by the first conveyor 6 is 8 millimetres.
  • the length of the shoe 9 beneath which the band 8 passes while compressing the tobacco stream and which is parallel with the bottom of the conveyor 6 is in such a case 250 millimetres.
  • the confining passage at the inlet end is approximately 2 millimetres larger in height and 3 millimetres larger in width than the compressed incoming tobacco stream.
  • the passage in each construction is caused to diverge slightly from the inlet end towards the outlet end, as seen in Figure l, the amount of divergence having been exaggerated in the drawin for the sake of clarity.
  • a divergence which is found suitable under average working conditions is an increase of 1 millimetre in the Width of the passage and an increase of 2 millimetres in the height of the passage.
  • the compacting effected in the confining passage is, in each construction, such as to cause the tobacco to build up to the walls of the passage and to issue from the passage at the slower speed.
  • first conveyor passes around the roller I4 the lateral compression of the tobacco stream is maintained while the stream is moved into the confining passage in which it is to be comipacted.
  • the water may be circulated in the reverse direction from that described above, that is, the water may be caused first to pass through the shoe 9.
  • air may be employed instead of water, but due to the fact that only a relatively small area can be exposed to the action of the cooling fiuid' it is preferred to employ water.
  • FIG 6 there is shown a further alterna tive construction.
  • the top guide instead of having a moving top guide such as the guide 8 in the constructions shown in Figures 1 and 5, the top guide comprises a shoe 90- and to ensure that the tobacco passes under the shoe 90 a wheel 91 is provided at the front end of the shoe 90.
  • Apparatus for forming a continuous tobacco filler comprising a confining passage in which a stream of tobacco is compacted to the cross-section of the passage, a first conveyor wholly exiii ternal to the passage to support and feed a stream of tobacco into the passage, guides, including side guides movable in the same direction as and at substantially the same speed as the conveyor, extending lengthwise of the first conveyor and co-operating with the first conveyor substantially wholly to confine and to compress the stream of tobacco to a cross-section smaller than that of the passage and to retain the stream in said compressed state substantially up to the point at which it enters the confining passage, and a second conveyor movable in the same general direction as and at a linear speed less than that of the first conveyor to support and move the tobacco away from the outlet of the confining passage, the length of said passage being such as to extend on each side of the point of compacting of the tobacco.
  • Apparatus for forming a continuous tobacco filler comprising a confining passage in which a stream of tobacco is compacted to the crosssection of the passage, a first conveyor wholly external to the passage to support and' feed a stream of tobacco into the passage, movable guides, which guides include a guide opposed to the first conveyor and comprising an endless band, extending lengthwise of the first conveyor and co-operating with the first conveyor to compress the stream of tobacco to a cross-section smaller than that of the passage and to: retain the stream in said compressed state substantially up to the point at which it enters the confining passage, and a rigid member located behind said endless band at the region where the latter engages the tobacco to determine the maximum distance of the tobacco engaging portion of the endless band from the first conveyor, and a second conveyor movable in the same general direction as and at a linear speed less than that of the first conveyor to support and move the tobacco away from the outlet of the confining passage, the length of saidpassage being such as to extend on each side of the point of compacting of the tobacco
  • one of the guides is disposed opposite the surface of the first conveyor and comprises a member having a stationary tobacco engaging surface.
  • Apparatus for forming a continuous tobacco filler comprising a confining passage having a generally uniform transverse sectional area and in which a stream of tobacco is compacted to the cross-section of the passage, means wholly external to the passage and arranged substantially wholly to' confine and to compress a stream of tobacco toa cross-section smaller than that of the passage and to support and feed the stream so compressed into the passage, and means to support and move the tobacco away from the outlet of the confining passage at a linear speed less than that at which it is fed into the passage, the length of said passage being such as to extend on each side of the point of compacting" of the tobacco.
  • Apparatus for forming a continuous tobacco filler comprising a confining passage having a generally uniform transverse sectional area. and in which a stream of tobacco is compacted to the cross-section of the passage, a first conveyor wholly external to the passage to support and feed a stream of tobacco into the passage, side guides and a movable top endless guide band comprising guide surfaces which extend lengthwise of the first conveyor and cooperating therewith substantially wholly to confine and tocompress the stream of tobacco to a cross-section smaller than that of the passage and to retain the stream in said compressed state substantially up to the point a which it enters the confining passage, the top endless guide band being movable with the first conveyor to assist the feeding of the compressed stream of tobacco, and a second conveyor movable in the same general direction as and at a linear speed lessthan that of the first conveyor to support and move the tobacco away from the outlet of the confining passage, the length of said passage being such as to extend on each side of the point of compacting of the tobacco.
  • Apparatus for forming a continuous tobacco filler comprising a confining passage having a generally uniform transverse sectional area and in which a stream of tobacco is compacted to the cross-section of the passage, means wholly external to the passage and arranged substantially wholly to confine and to compress a stream of tobacco to a cross-section smaller than that of the passage and to support and feed the stream so compressed into the passage, said means including a conveyor having a tobacco receiving surface of substantially U form, and means to support and move the tobacco away from the outlet of the confining passage at a linear speed less than that at which it is fed into the passage, the length of said passage being such as to extend on each side of the point of compacting of the tobacco.
  • Apparatus for forming a continuous tobacco filler comprising a confining passage having a generally uniform transverse sectional area and in which a stream of tobacco is compacted to the cross-section of, the passage, a first conveyor wholly external to the passage to support and feed a stream of tobacco into the passage, said first conveyor having a tobacco receiving surface of substantially U form, a movable top endless guide band which extends lengthwise of the first conveyor and cooperates therewith substantially wholly to confine and to compress the stream of tobacco to a cross-section smaller than that of the passage and to retain the stream in said compressed state substantially up to the point at which it enters the confining passage, the top endless guide band being movable with the first conveyor to assist the feeding of the compressed stream of tobacco, and a second conveyor movable in the same general direction as and at a linear speed less than that of the first conveyor to support and move the tobacco away from the outlet of the confining passage, the length of said passage being such as to extend on each side of the point of compacting of
  • Apparatus for forming a continuous tobacco filler comprising a confining passage having a generally uniform transverse sectional area and in which a stream of tobacco is compacted to the cross-section of the passage, a first conveyor wholly external to the passage to support and feed a stream of tobacco into the passage, said first conveyor having a tobacco receiving surface of substantially U form, a movable top endless guide band located between the upstanding limbs of said U which band extends lengthwise of the first conveyor and cooperates therewith substantially wholly to confine and to compress the stream of tobacco to a cross-section smaller than that of the passage and to retain the stream in said compressed state substantially up to the point at which it enters the confining passage, the top endless guide band being.
  • Apparatus for forming a continuous tobacco filler comprising a confining passage having a generally uniform transverse sectional area and in which a stream of tobacco is compacted to the cross-section of the passage, a first conveyor wholly external to the passage to support and feed a stream of tobacco into the passage, said first conveyor having a tobaccoreceiving surface of substantially U form, a movable top endless guide band located between the upstanding limbs of said U which band extends lengthwise of the first conveyor and, cooperates therewith substantially wholly to confine and to compress the stream of tobacco to a cross-section smaller than that of the passage and to retain the stream in said compressed state substantially up to the point at which it enters the confining passage, the top endless guide band being movable with the first conveyor to assist the feeding of the compressed stream of tobacco, a rigid member located above the top endless guide band at the region where the latter engages the tobacco, to determine the maximum distance of the tobacco engaging portion of the top endless guide band from the first conveyor, and a second conveyor movable in
  • Apparatus for forming a continuous tobacco filler comprising a confining passage in which a stream of tobacco is compacted to the cross-section of the passage, a first conveyor wholly external to the passage to support and feed a stream of tobacco into the passage, a stationary guide opposed to the surface of the first conveyor and which extends lengthwise of the first conveyor and cooperates therewith sub stantially wholly to confine and to compress the stream of tobacco to a cross-section smaller than that of the passage and to control the stream so compressed substantially up to the point at which it enters the confining passage, and a second conveyor movable in the same general direction as and at a linear speed less than that of the first conveyor to support and move the tobacco away from the outlet of the confining passage, the length of said passage being such as to extend on each side of the point of compacting of the tobacco.
  • Apparatus for forming a continuous tobacco filler comprising a confining passage having a generally uniform transverse sectional area and in which a stream of tobacco is compacted to the cross-section of the passage, an endless conveyor band wholly external to the passage to support and feed a stream of tobacco into the passage, means to fold the tobacco receiving surface of the conveyor band to substantially U form, a movable top endless guide band which extends lengthwise of the conveyor band and cooperates therewith substantially wholly to confine and to compress the stream of tobacco to a cross-section smaller than that ofthe passage and to retain the stream in said compressed state substantially up to the point at which it enters the confining passage, the top endless guide band being movable with the conveyor band to assist the feeding of the compressed stream of tobacco, and -a second conveyor movable in the same general direction as and at a linear speed less than that of said conveyor band to support and move the tobacco away from the outlet of the confining passage, the length of said passage being such as to extend on each side of the point of compacting of the
  • Apparatus for forming a continuous tobacco filler comprising a confining passage in which a stream of tobacco is compacted to the cross-section-of the passage, an endless conveyor band wholly external to the passage to support and feed a stream of tobacco into the passage, means to fold the tobacco receiving surface of the conveyor band to substantially -U form, a stationary guide disposed between the upstanding limbs of said U and which extends lengthwise of the conveyor band and cooperates therewith substantially wholly to confine and to compress the stream of tobacco to a cross-section smaller than that of the passage and to control the stream so compressed substantially up to the point at which it enters the confining passage, and a second conveyor movable in the same general direction as and at a linear speed less than that of saidconveyor band to support and move the tobacco away from the outlet of the confining passage, the length of said passage being such as to extend on each side of the point of compacting of the tobacco.
  • a conveyor for a stream of tobacco means extending continuously along a relatively long portion of the conveyor and cooperating with the conveyor substantially to enclose and to subject the tobacco stream thereon to a high compression, guides having passages formed therein and co-acting with said means and conveyor, and circulating means to circulate a cooling fluid through the passages in said guides.
  • an endless conveyor band for a stream of tobacco an endless pressure band having a tobacco engaging surface movable in the same direction as the tobacco receiving surface of the conveyor band and cooperating with the latter substantially to enclose and to subject the tobacco thereon to a high compression, a guide located behind each .of said tobacco engaging surfaces to determine the distance therebetween, each of said guides having a passage formed therein, and circulating means to circulate a cooling fluid through the passages in said guides.
  • an endless conveyor band for a stream of tobacco for a stream of tobacco, a guide to fold the tobacco receiving surface of the band to U form, a stationary member having a continuous tobacco engaging surface extending along a relatively long portion of the band and cooperating therewith substantially to enclose and to subject the tobacco stream to a high compression, said guide and said stationary member each having a passage formed therein, and circulating means to circulate a cooling fluid through the passages in said guide and said stationary member.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
US260174A 1938-03-29 1939-03-06 Tobacco machine for forming continuous tobacco rods or fillers Expired - Lifetime US2269598A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB964538A GB514162A (en) 1938-03-29 1938-03-29 Improvements in or relating to machines for forming a continuous tobacco rod or filler
GB1395839A GB528601A (en) 1939-05-10 1939-05-10 Improvements in or relating to machines for forming a continuous tobacco rod or filler

Publications (1)

Publication Number Publication Date
US2269598A true US2269598A (en) 1942-01-13

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US260174A Expired - Lifetime US2269598A (en) 1938-03-29 1939-03-06 Tobacco machine for forming continuous tobacco rods or fillers

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US (1) US2269598A (enrdf_load_stackoverflow)
DE (1) DE912073C (enrdf_load_stackoverflow)
FR (1) FR850976A (enrdf_load_stackoverflow)
GB (2) GB514199A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011069616A1 (de) * 2009-12-11 2011-06-16 Hauni Maschinenbau Ag Formattemperierung für eine filterstrangmaschine oder tabakstrangmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017216143A1 (de) * 2017-09-13 2019-03-14 Robert Bosch Gmbh Verfahren zur Herstellung eines Elektrodenstapels für eine Batteriezelle und Batteriezelle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011069616A1 (de) * 2009-12-11 2011-06-16 Hauni Maschinenbau Ag Formattemperierung für eine filterstrangmaschine oder tabakstrangmaschine

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Publication number Publication date
DE912073C (de) 1954-05-24
GB514199A (en) 1939-11-01
GB516761A (en) 1940-01-10
FR850976A (enrdf_load_stackoverflow) 1939-12-30

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