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US3189034A - Method of and apparatus for feeding cut tobacco in a machine for making tobacco products - Google Patents

Method of and apparatus for feeding cut tobacco in a machine for making tobacco products Download PDF

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Publication number
US3189034A
US3189034A US266620A US26662063A US3189034A US 3189034 A US3189034 A US 3189034A US 266620 A US266620 A US 266620A US 26662063 A US26662063 A US 26662063A US 3189034 A US3189034 A US 3189034A
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United States
Prior art keywords
tobacco
stem
feeding
feeding means
main
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Expired - Lifetime
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US266620A
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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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    • 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
    • A24C5/185—Separating devices, e.g. winnowing, removing impurities

Definitions

  • This invention concerns improvements in or relating to a method of and apparatus for feeding cut tobacco in a tobacco, manipulating machine, for example a continuous rod cigarette-making machine.
  • cut tobacco normally contains a considerable proportion of short tobacco shreds, often referred to as shorts, and there is sometimesa tendency for the shorts to become irregularly distributed in the cut tobacco.
  • shorts sometimes tend to accumulate at certain positions in the hopper, and, by falling through the bottom of the hopper, some shorts can become separated from the remainder of the cut tobacco contained therein, the separated shorts sometimes being returned to the hopper.
  • some portions along the length of the tobacco filler may contain more shorts than do other portions, and this may in some cases contribute to irregularity in weight of the cigarette produced, because a given weight of shorts will generally occupy a smaller volume than does an equal weight of long tobacco.
  • the hopper mechanism of a continuous rod cigarettemaking machine normally comprises a carded drum and a picker roller, and shorts and processed stem are often.
  • a method of feeding cut tobacco in a tobacco manipulating machine comprising the steps of transporting selected cut tobacco from main feeding means in a main supply stream towards means for forming a tobacco filler, feeding shorts which become separated from out tobacco fed by the said main feeding means to separate feeding means, separating stem from cut tobacco fed by the said main feeding means, separating usable stem from unusable stem, feeding the usable stem to the said separate feeding means, processing the unusable stem to convert it into usable processed stem, feeding usable processed stem to the said separate feeding means, and feeding 'ice shorts, usable stem and processed stern together from the said separate feeding means into the main supply stream.
  • Tobacco may be fed from the main feeding means into an airstream, tobacco from the separate feeding means also being fed into the airstream, and the tobacco in the airstream being transported towards the'means for forming a tobacco filler.
  • apparatus for feeding cut tobacco in a tobacco manipulating machine comprising main feeding means to feed cut tobacco, means to transport selected cut tobacco from the main feeding means in a main supply stream, separate feeding means to feed shorts, usable stem and processed stem together into the main supply stream, means to guide shorts which become separated from cut tobacco fed by the said main feeding means to the said separate feeding means, means to separate stem from out tobacco fed by the said main feeding means, means to separate usable stem from unusable stem and to deliver the usable stem to the said separate feeding means, and means to deliver processed stem, which has been processed to convert it from unusable stem to usable processed stem, to the said separate feeding means.
  • the invention providesfurther apparatus for feeding cut tobacco in a continuous rod cigarette-making machine I having a trimming device to trim excess tobacco from one side of a tobacco filler stream, comprising main feeding means to feed cut tobacco, means to pneumatically transport selected cut tobacco from the main feeding means in a main supply stream in which the particles are generally spaced from each other, means to receive tobacco from the said main supply stream to form said tobacco filler stream, separate feeding means to feed further selected tobacco directly into the said main supply stream so that it is mixed and pneumatically transported together with the said selected cut tobacco in the main supply stream, and means to guide the said further selected tobacco so that it is fed into a desired part of the said main supply stream such that it becomes concentrated on that side of the filler stream remote from the said one side.
  • the invention also provides a method of feeding cut tobacco in a continuous rod cigarette making machine in which excess tobacco is trimmed from one'side of a tobacco filler stream, comprising the steps of feeding selected cut tobacco from main feeding means; into an airstream, transporting said selected cut tobacco as generally spaced particles by the said airstream towards means for forming the tobacco filler stream, and feeding further selected tobacco from separate feeding means directly into a desired part of the said airstream so that the said further selected tobacco is transported together with the said selected cut tobacco by the airstream and becomes concentrated on that side of the filler stream re mote from the said one side.
  • a continuous rod cigarette-making machine tobaccofeeding apparatus comprising means to produce a main airstream which can transport cut tobacco in a main supply stream, a hopper to which cut tobacco is supplied, a movable conveyor and means to move the conveyor along a conveying run, means to guide shorts which become 1 separated from cut tobacco contained in the hopper on for conversion into usable processed stem, means to feed such processed usable stem on to the said conveyor, and means to produce an airstream into which tobacco is received on the said conveyor is fed to be carried into the said main airstream for inclusion in the said main supply stream.
  • the apparatus may comprise means to vibrate the conveyor along at least part of its conveying run.
  • FIGURE 1 is a section through tobacco feeding apparatus in a continuous rod cigarette-making machine
  • FIGURE 2 is a section on the line II-II of FIGURE 1.
  • FIGURE 3 is a plan view of part of a sieve
  • FIGURE 4 is a diagrammatic representation of a method of feeding tobacco.
  • cut tobacco consisting of a mixture of cut lamina and cut stem is supplied to a hopper indicated generally by the reference 1.
  • a carded drum 2 is rotated in the direction of the arrow and delivers the tobacco in the form of a carpet past combs 3 to a position at which a picker roller 4 strips the carpet from the carding, the drum 2 and roller 4 constituting main feeding means for the cut tobacco.
  • the tobacco is fed by the picker roller 4 along a shaped plate 5 to be engaged by a winnower 6 rotating in the direction of the arrow.
  • the winnower 6 impels the tobacco into the path of a main airstream, the air being drawn through holes 7 in a plate 8 and up a channel 9 in a manner as described in co-pending application Serial No.
  • Tobacco is discharged from the trap 11 by means of a steel roll 14 and a rubber covered roll 15, which form an air lock, into a passage 16.
  • the passage 16 is defined by walls 17 and 18 and a rising airstream is drawn through it via grilles 19 and 20 at the bottom of walls 17 and 18 respectively.
  • grilles 19 and 20 at the bottom of walls 17 and 18 respectively.
  • the band 21 passes about rollers 21a and 21b, and is positioned inside a casing 23 provided with a sieve 24 and an opening 25 leading into a pipe 26.
  • the sieve 24 is shown in plan view in FIGURE 3 and is constructed so that small pieces of suitable stem can fall therethrough but so that larger pieces of unusable stem are prevented from doing so.
  • the band 21 is moved in the direction shown by the arrow on the driven roller 21a, and tobacco received thereon is pushed by the paddles 22 over the sieve 24, through which small pieces of usable stem drop, larger pieces of unusable stem being further conveyed through the opening 25 and into the pipe 26.
  • the sieve 24 is positioned so that tobacco falling therethrough is guided on to a conveyor in the form of an endless band 27 passing about rollers 28 and 29, of which the roller 28 is driven.
  • the band 27 is moved in the direction indicated by the arrow of rotation on the roller 28, and has an upper run extending from a position beneath the hopper 1 and behind the carded drum 2 (considered in the direction of movement of the band 27).
  • An electric vibrator 30 is provided to vibrate the band along part of its upper run. 7
  • an endless fluted band 31 Positioned above the band 27, at the right hand side as viewed in FIGURE 1, is an endless fluted band 31, passing about a driven roller 32 and a roller 33, and moved in the direction indicated by the arrow.
  • Unusable stem collected in the pipe 26 is conveyed therefrom by the action of suction therethrough to be processed for conversion to usable processed stem.
  • the stem is processed by any suitable processing means, for example by rolling and cutting in a manner as described in copending U.S. patent application Serial No. 245,576, filed December 18, 1962.
  • the stem so converted isfed into a small hopper formed between end walls 34 and side walls 35 of which the band 31 forms a moving base. It is then delivered by the band 31 on to the conveyor band 27, a refuser roller 36 being provided to restrict the amount of stem being fed. It will be appreciated that the amount of stem fed to the band 27 can be regulated by adjustment of the speed of the band 31 and, if desired, by a change in the depth of the flutes thereon.
  • the band 27 then passes beneath the sieve 24 and receives small pieces of usable stem as previously described.
  • the vibrator 30 causes the band 27 to vibrate along part of its conveying run and acts to redistribute tobacco received thereon.
  • a rotatable rubber covered roll 39 which coacts with the roller 28 and band 27 to discharge tobacco from the latter into a channel 40 formed between walls 41 and 42.
  • the roll 39 and roller 28 form an air lock in the same manner as the rolls 14 and 15.
  • An airstream drawn (by means of the suction chamber through an open lower end 43 of the channel 40 carries tobacco discharged from the band 27 up the channel 40 into the main airstream, so that the tobacco is fed into the main supply stream at the bottom of channel 9.
  • the conveyor band 27 thus constitutes separate feeding means to feed usable stem, shorts and processed stem into the main supply stream.
  • processed stem which is some times prone to breakage when subjected to carding and picking operations, can be fed into the main supply stream without passing through the main feeding means, and thus without being subjected to such operations.
  • shorts which are also sometimes prone to breakage, can be fed into the main supply stream with- .out being recirculated through the hopper.
  • FIGURE 4 shows cut tobacco fed to the main feeding means from which selected cut tobacco is transported in a main supply stream. Shorts, which become separate from the cut tobacco fed by the main feeding means are fed to the separate feeding means. Stem which is separated from the cut tobacco fed by the main feeding means is fed to stem separating means, which separates unusable stem from usable stem, the latter being fed to the separate feeding means. The unusable stem is removed for processing to usable stem, and the stem thus processed is delivered to the separate feeding means. Shorts, usable stem and processed stem are fed together from the separate feeding means into the main supply stream.
  • the main supply stream of tobacco, containing cut lamina and usable stem as well as shorts and processed stem, is conveyed. by. the main airstream up the channel 9 to be received on the moving perforated conveyor belt 101 through which suction is applied to draw air through the channels, 9, 16 and 40, and on which a filler stream is built up and conveyed, in a manneras described in US. patent specification No. 3,030,966 dated April 24, 1962.
  • a trimming device 103 then acts on the filler stream to remove excess tobacco from one side thereof and produce a filler, the said excess tobacco being returned to the hopper 1 for recirculation through the feeding mechanism, as also described in the above mentioned specification.
  • the band 27 extends in width along substantially the length of the position at which the filler stream is built up.
  • the fluted band 31 extends in width across only part (approximately three quarters) of the width of the band 27.
  • tobacco fed from the fluted band 31 on to the band 27 is spread from one side across approximately three quarters of the latter.
  • Beneath the carded drum 2 is provided a sloping guide plate 44 which provides a cover for approximately one quarter of the width of the band 27 which passes under it.
  • shorts delivered from the plates 37 and 38 on to the band 27 are similarly received across approximately three quarters of the width of the latter.
  • An extension 45 of the guide plate 44 running parallel to the direction of movement of the band 27 and positioned approximately a quarter of the way across its width assists in keeping the shorts and processed stem on the required side of the band 27 (see also FIGURE 1).
  • the side of the band 27 on which the shorts and processed stem are received corresponds to that part of the channel 9 at which tobacco is first received .on the perforated conveyor belt 101.
  • the shorts and processed stem are transported from the band 27 through the channel 40 and into the channel 9, and received on the perforated conveyor belt in such a way that they become covered by further tobacco during the building up of the filler stream, i.e.
  • the purpose of this arrangement is to avoid the removal of shorts and processed stem from the filler stream by the trimming device and their consequent recirculation through the feeding mechanism, as such recirculation might cause undesirable breakage of the tobacco.
  • the small pieces of usable stem which fall through the sieve 24 are received across approximately the entire width of the band 27.
  • the speed of the band 27 can be arranged to give a desired distribution of tobaccothereon, (i.e. a desired amount of tobacco per unit surface area of the band).
  • the arrangement is such that the particles of tobacco are distributed somewhat sparsely over the band 27 and do not, at least to any considerable extent, lie on each other.
  • the rate of feed of tobacco from the hopper 1 is less than would be required if the shorts and processed 6 stem were returned thereto instead of being fed to the filler stream without passing through the hopper a second time.
  • Such decreased rate of hopper feed is believed to cause less breakage of the tobacco fed thereby.
  • a method of feeding cut tobacco in a tobacco manip ulating machine comprising the steps of transporting selected cut tobacco from main feeding means in a main supply stream towards means for forming a tobacco fill er, feeding shorts which become separated from out tobacco fed by the said main feeding means to separate feeding means, separating stem from cut tobacco fed by the said main feeding means, separating usable stem from unusable stern, feeding the usable stem to the said separate feeding means, processing the unusable stem to convert it into usable processed stem, feedingusable processed stem to the said separate feeding means, and feeding shorts, usable stem and processed stem together from the said separate feeding means into the main supply stream.
  • Apparatus for feeding cut tobacco in a tobacco manipulating machine comprising main feeding means to feed cut tobacco, means to transport selected cut tobacco from the main feeding means in a main supply stream, separate feeding means to feed shorts, usable stem and processed stern together into the main supply stream, means to guide shorts which become separated from out tobacco fed by the said main feeding means to the said separate feeding means, means to separate stem from out tobacco fed by the said main feeding means, means to separate usable tem from unusable stem and to deliver the usable stem to the said separate feeding means, and means to deliver processed stem, which has been processed to convert it from unusable stem to usable proc essed stem, to the said separate feeding means.
  • Apparatus for feeding cut tobacco in a continuous rod cigarette-making machine having a trimming device to trim excess tobacco from one side of a tobacco filler stream comprising main feeding means to feed cut tobacco, means to pneumatically transport selected cut tobacco from the main feeding means in a main supply stream in which the particles are generally spaced from each other, means to receive tobacco from the said mainsupply streams to form said tobacco filler stream, separate feeding means to feed further selected tobacco directly into the said main supply stream so that it is mixed and pneumatically transported together with the said selected cut tobacco in the main supply stream, and means to guide the said further selected tobacco so that it is fed into a desired part of the said main supply stream such that it becomes concentrated on that side of the filler stream remote from the said one side.
  • a continuous rod cigarette making machine tobacco-feeding apparatus comprising means to produce a main airstream which can transport cut tobacco in a main supply stream, a hopper to which cut tobacco is supplied, a movable conveyor and means to move the conveyor along a conveying run, means to guide shorts which become separated from cut tobacco contained in the hopper on to the said conveyor, impelling means to impel cut tobacco fed from the hopper across the path of the said main airstream so that some tobacco is carried away by the airstream while stem is impelled across the airstream, sieving means to receive the stem and to separate therefrom usable stem, the said usable stern being received on the said conveyor, means to transport unusable stem from the sieving means so that it can be removed for conversion into usable processed stem, means to feed such processed usable stem on to the said conveyor, and means to produce an airstream into which tobacco received on the said conveyor is fed to be carried into the said main airstream for inclusion in the said main supply stream.
  • Apparatus as claimed in claim 5, comprising means to vibrate the conveyor along at least part of its conveying run.
  • a method of feeding cut tobacco in a continuous rod cigarette making machine in which excess tobacco is trimmed from one side of a tobacco filler stream comprising the steps of feeding selected cut tobacco from main feeding means into an airstream, transporting said selected cut tobacco as generally spaced particles by the said airstream towards means for forming the tobacco filler stream, and feeding further selected tobacco from 25 SAMUEL KOREN, Primary Examiner.

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US266620A 1962-03-28 1963-03-20 Method of and apparatus for feeding cut tobacco in a machine for making tobacco products Expired - Lifetime US3189034A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11845/62A GB1038552A (en) 1962-03-28 1962-03-28 Improvements in or relating to a method of and apparatus for feeding cut tobacco in a machine for making tobacco products

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US3189034A true US3189034A (en) 1965-06-15

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DE (1) DE1299243B (de)
GB (1) GB1038552A (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374795A (en) * 1964-09-11 1968-03-26 Molins Organisation Ltd Apparatus for making continuous cigarette rods
US3380782A (en) * 1965-07-09 1968-04-30 Molins Machine Co Ltd Tobacco manipulating machines
DE1285929B (de) * 1965-08-10 1968-12-19 Hauni Werke Koerber & Co Kg Verfahren und Anordnung zum Sichten von Rippen aufweisendem Schnittabak
US3732871A (en) * 1969-05-02 1973-05-15 Molins Machine Co Ltd Method and apparatus for making cigarettes
US3779253A (en) * 1967-09-15 1973-12-18 Molins Machine Co Ltd Cigarettes
US3949763A (en) * 1972-09-12 1976-04-13 Molins Limited Cigarette making machines
US4024878A (en) * 1975-02-01 1977-05-24 Molins Limited Cigarette making machines
US4095604A (en) * 1972-11-15 1978-06-20 Molins Limited Cigarette-making machines
DE3344068A1 (de) * 1982-12-07 1984-06-07 The Japan Tobacco & Salt Public Corp., Tokyo Foerdervorrichtung fuer zerkleinerten tabak fuer eine maschine zum herstellen von zigaretten
US4526182A (en) * 1981-04-16 1985-07-02 Molins Plc Cigarette making machines
EP0152998A1 (de) * 1984-01-06 1985-08-28 Japan Tobacco Inc. Zuführungsvorrichtung für geschnittenen Tabak für Zigarettenherstellungsmaschine
DE3534249A1 (de) * 1984-10-10 1986-04-17 Hauni-Werke Körber & Co KG, 2050 Hamburg Vorrichtung zum aufbereiten von tabakfasern im verteiler einer zigarettenstrangmaschine
CN104515454A (zh) * 2013-09-30 2015-04-15 贵州中烟工业有限责任公司 切丝机出口处烟丝宽度快速检测方法
US10857562B2 (en) 2017-08-19 2020-12-08 Altria Client Services Llc String filter
CN115606833A (zh) * 2022-11-15 2023-01-17 山东中烟工业有限责任公司 一种烟梗梗丝加工装置及控制梗丝长度的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1587814A (en) * 1976-06-03 1981-04-08 Molins Ltd Cigarette making machines
IT1257762B (it) * 1992-03-13 1996-02-13 Gd Spa Metodo per la separazione di particelle di tabacco in una macchina confezionatrice di sigarette, e macchina confezionatrice per la realizzazione del metodo
DE202015105542U1 (de) * 2015-10-20 2017-01-23 Bernd Münstermann Gmbh & Co. Kg Rückführungsvorrichtung für Tabakreste
CN117582022B (zh) * 2023-12-29 2025-11-07 南京焦耳科技有限责任公司 基于二级梳排结构的梗签剔除物中回收烟丝的方法及装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB475608A (en) * 1936-02-27 1937-11-23 Johan Carl Mueller Improvements in or relating to tobacco feeding apparatus for cigarette making machines
US2239858A (en) * 1935-09-07 1941-04-29 American Mach & Foundry Tobacco conveying and feeding
US2467248A (en) * 1942-04-03 1949-04-12 American Mach & Foundry Shorts handling means for cigarette tobacco feeds
US2634171A (en) * 1947-10-23 1953-04-07 Molins Machine Co Inc Apparatus for feeding tobacco
US2795229A (en) * 1954-10-22 1957-06-11 American Mach & Foundry Cigarette machine feed
FR1248179A (fr) * 1958-12-30 1960-12-09 Procédé et appareil pour la production d'un boudin continu de tabac
GB880850A (en) * 1959-08-18 1961-10-25 Gallaher Ltd Improvements in or relating to cigarette making machines
US3030961A (en) * 1960-05-20 1962-04-24 Erteszek Olga Strapless brassiere
US3092117A (en) * 1960-05-16 1963-06-04 Molins Machine Co Ltd Winnowing apparatus for cigarettemaking machines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE640440C (de) * 1935-07-02 1937-01-04 Martin Brinkmann Akt Ges Verfahren und Vorrichtung zum Herstellen eines Tabakvliesses auf einer zur Strangrinne der Zigarettenmaschine laufenden Flaeche
DE651833C (de) * 1936-02-27 1937-10-20 Muller J C & Co Tabakausbreiter fuer Zigarettenmaschinen
DE683555C (de) * 1937-08-20 1939-11-08 Muller J C & Co Verfahren und Vorrichtung zum Absondern des Kurztabaks

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2239858A (en) * 1935-09-07 1941-04-29 American Mach & Foundry Tobacco conveying and feeding
GB475608A (en) * 1936-02-27 1937-11-23 Johan Carl Mueller Improvements in or relating to tobacco feeding apparatus for cigarette making machines
US2467248A (en) * 1942-04-03 1949-04-12 American Mach & Foundry Shorts handling means for cigarette tobacco feeds
US2634171A (en) * 1947-10-23 1953-04-07 Molins Machine Co Inc Apparatus for feeding tobacco
US2795229A (en) * 1954-10-22 1957-06-11 American Mach & Foundry Cigarette machine feed
FR1248179A (fr) * 1958-12-30 1960-12-09 Procédé et appareil pour la production d'un boudin continu de tabac
GB880850A (en) * 1959-08-18 1961-10-25 Gallaher Ltd Improvements in or relating to cigarette making machines
US3092117A (en) * 1960-05-16 1963-06-04 Molins Machine Co Ltd Winnowing apparatus for cigarettemaking machines
US3030961A (en) * 1960-05-20 1962-04-24 Erteszek Olga Strapless brassiere

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374795A (en) * 1964-09-11 1968-03-26 Molins Organisation Ltd Apparatus for making continuous cigarette rods
US3380782A (en) * 1965-07-09 1968-04-30 Molins Machine Co Ltd Tobacco manipulating machines
DE1285929B (de) * 1965-08-10 1968-12-19 Hauni Werke Koerber & Co Kg Verfahren und Anordnung zum Sichten von Rippen aufweisendem Schnittabak
US3779253A (en) * 1967-09-15 1973-12-18 Molins Machine Co Ltd Cigarettes
US3732871A (en) * 1969-05-02 1973-05-15 Molins Machine Co Ltd Method and apparatus for making cigarettes
US3949763A (en) * 1972-09-12 1976-04-13 Molins Limited Cigarette making machines
US4095604A (en) * 1972-11-15 1978-06-20 Molins Limited Cigarette-making machines
US4024878A (en) * 1975-02-01 1977-05-24 Molins Limited Cigarette making machines
US4526182A (en) * 1981-04-16 1985-07-02 Molins Plc Cigarette making machines
DE3344068A1 (de) * 1982-12-07 1984-06-07 The Japan Tobacco & Salt Public Corp., Tokyo Foerdervorrichtung fuer zerkleinerten tabak fuer eine maschine zum herstellen von zigaretten
EP0152998A1 (de) * 1984-01-06 1985-08-28 Japan Tobacco Inc. Zuführungsvorrichtung für geschnittenen Tabak für Zigarettenherstellungsmaschine
DE3534249A1 (de) * 1984-10-10 1986-04-17 Hauni-Werke Körber & Co KG, 2050 Hamburg Vorrichtung zum aufbereiten von tabakfasern im verteiler einer zigarettenstrangmaschine
DE3534249C2 (de) * 1984-10-10 1998-07-02 Hauni Werke Koerber & Co Kg Vorrichtung zum Aufbereiten von Tabakfasern im Verteiler einer Zigarettenstrangmaschine
CN104515454A (zh) * 2013-09-30 2015-04-15 贵州中烟工业有限责任公司 切丝机出口处烟丝宽度快速检测方法
US10857562B2 (en) 2017-08-19 2020-12-08 Altria Client Services Llc String filter
CN115606833A (zh) * 2022-11-15 2023-01-17 山东中烟工业有限责任公司 一种烟梗梗丝加工装置及控制梗丝长度的方法
CN115606833B (zh) * 2022-11-15 2024-06-07 山东中烟工业有限责任公司 一种烟梗梗丝加工装置及控制梗丝长度的方法

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DE1299243B (de) 1969-07-10
GB1038552A (en) 1966-08-10

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