GB2169486A - Apparatus for forming a layer of smokeable material - Google Patents
Apparatus for forming a layer of smokeable material Download PDFInfo
- Publication number
- GB2169486A GB2169486A GB08531337A GB8531337A GB2169486A GB 2169486 A GB2169486 A GB 2169486A GB 08531337 A GB08531337 A GB 08531337A GB 8531337 A GB8531337 A GB 8531337A GB 2169486 A GB2169486 A GB 2169486A
- Authority
- GB
- United Kingdom
- Prior art keywords
- band
- slugs
- smoking material
- type
- ofthe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- A24C5/1821—Forming the rod containing different tobacco mixtures, e.g. composite rods
Landscapes
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
A layer of two demarcated types of tobacco or other smokeable material is provided on a conveyor band by (a) forming longitudinally spaced discrete slugs of a first type of smokeable material on a moving conveyor band and (b) forming discrete slugs of a second type of smokeable material on said conveyor band in the spaces between the slugs of the first type. A first embodiment, Fig 1, involves applying spaced slugs 16 of a first type of tobacco on a first suction conveyor band 10, applying spaced slugs 26 of a second type of tobacco on a second suction conveyor band 22, bringing the bands into face-to-face abutment over a portion of their run, and transferring the slugs of the first type of tobacco from the first band into the spaces on the second band between the slugs of the second type of tobacco. The layer so formed is then made into cigarettes by known techniques. In a second embodiment, the slugs of the second type of tobacco are deposited onto the conveyor band between the slugs of the first type of tobacco by means of a pulsed tobacco feed means. <IMAGE>
Description
SPECIFICATION
Improvements in or relating to the manufacture of a rod of smokeable material T;ris invention relates to the manufacture of a rod of smokeable material, such as is used in cigarettes, and is concerned with the production of a rod of smokeable material consisting of more than one type of smoking material in which the types of smoking material in the rod are demarcated.
"Types of smoking material" include those exhibiting different natures or compositions and may, for instance, comprise various kinds of tobacco, tobacco products such as reconstituted tobacco, or tobacco substitutes. The term "tobacco substitute" will be understood to include not only smoking materials such as cellulose or cellulosic derivatives of nontobacco origins, but inertfillers such as alumina and materials of botanical derivation.
The present invention is particularly concerned with the provision of alternating types of smoking material on an air pervious conveyor band, such as is in common use in the cigarette making art, so as to provide a composite rod of smokeable material consisting oftwo demarcated smoking materials whose relative proportions vary in a predetermined manner along the length ofthe rod.
According to a first aspect ofthe present invention there is provided a method of providing on a moving conveyor band a layer of smokeable material consisting of atleasttwo demarcatedtypes of smoking material, the method comprising the steps of, (a) applying orforming discrete slugs of a firsttype of smoking material onto or on a first moving conveyor band sothatthe slugs ofthefirsttype of smoking material are longitudinally spaced on the first band, (b) applying orforming discrete slugs of a second type of smoking material onto or on a second moving conveyor band so thatthe slugs ofthe second type of smoking material are longitudinally spaced on the second band, (c) bringing the two bands into face-to-face abutment so thatthe slugs of the firsttype of smoking material alternate with the slugs of the second type of smoking material, and (d) transferring the slugs ofthe first type onto the second band in alternating reltionshipwith the slugs ofthe second type.
According to a second aspect ofthe present invention there is provided a method of providing on a moving conveyor band a layer of smokeable material consisting of at least two demarcated types of smoking material, the method comprising the steps of, (a) applying or forming discrete slugs of a first type of smoking material onto or on a first moving conveyor band'sathatthe slugs ofthefirst type of smoking material are longitudinally spaced on the first band,
(b) applying orforming discrete slugs of a second type oPsmoking material onto or on the first moving conveyor so thatthe slugs of the second type of
smoking material occupy the spaces between the slugs ofthe firsttype.
Preferably, in the second aspect, the slugs ofthefirst type of smoking material are applied to thefirst band from another band.
In either ofthe first or second aspects the layer formed thereby is preferably transferred to a further band immediately afterforming.
According to a third aspect ofthe present invention there is provided an apparatus for carrying outthe method ofthe first aspect of the invention, the apparatus comprising, (a) first and second moving conveyor bands, the two bands running in parallel face-to-face relationship overa portion oftheirruns, (b) means for disposing first and second types of smoking material respectively on the first and second conveyor bands so that on each band there are formed longitudinallyspacedslugsofthe respective type of smoking material, and, (c) means for transferring the slugs of the first type from the first band onto the second band so as to alternate with the slugs of the second type.
Thefirst and second conveyor bands are preferably air pervious bands and the means for depositing the smoking materials on the bands preferably comprises feed ductsappliedtoonefaceofthe bands and suction chambers applied to the other face ofthe bands.
The feeding of the smoking materials through the ductsandlortheaction ofthesuction chambers may be pulsed so as to provide spaced slugs of the smoking materials along the respective bands.
According to a fourth aspect of the present invention there is provided an apparatus for carrying outthe method of the second aspect of the invention, the apparatus comprising, (a) a first moving conveyor band continuously air pervious over its length, (b) a first suction box applied to one face of the first conveyor band, (c) pulsed feed means for applying longitudinally spaced slugs of a first smoking material to the first conveyor band, (d) a second moving conveyor band comprising alternate air-pervious and air-impervious sections, (e) a second suction box applied to a face ofthe second band, (f) feed means for applying longitudinally spaced slugs of a second smoking material to the second band, (g) transfer meansfortransferring slugs of the second smoking material in a longitudinally spaced formation on to the first band, and, (h) means to synchronise the transfer ofthe slugs of the second smoking material onto the first band with the formation of the slugs ofthefirst smoking material on the first band so that the first and second types of smoking material alternate longitudinally on the first band.
The transfer means is preferably a suction conveyor band.
The invention will now be described in its several aspects by way of example only with reference to the
accompanying purely schematic drawings in which,
Figure lisa representation of a system of conveyors
forcarrying outthe method ofthe first aspect ofthe
invention, and
Figure 2 is a representation of a system of conveyors
for carrying outthe method ofthesecond aspectofthe invention.
Referring to Figure 1 there is shown a first suction
conveyor band 10 running in the direction of arrow 12.
Afirsttobaccofeed duct 14 is located under one part of
the conveyor band 10 asto deposittobacco on the band as a slug or mate 16 oftobacco. Suction through
the band loins applied in the direction of arrows 18.
Feed duct 14 is controlled by a control mechanism 20
so thattobacco is fed on to the band 10 in pulses.
Consequently, a series of longitudinally separated slugs 16 is formed on the band 10.
Alternatively,theslugs 16may be formed by depositing a layer of tobacco on the band 10 and then
removing a section ofthe deposited tobacco over a
length ofthe band by one of a variety of methods.
Such methods of removal may include,
(a) applying a pulsed jet of air atthe air-pervìous band so asto "neutralizeD the suction effect,thereby causing the deposited tobacco to fall off;
(b) blowingthe tobacco offthe band by a transversely
directed jet of air;
(c) pushing the tobacco off by piston; or,
(d) removingthetobacco bya rotating paddle.
There is also provided a second suction band 22
running in the direction of arrow 13. A second tobacco feed duct24is located underonepartofconveyor22 seas to deposit a second type of tobacco on the band
22 as a slug or matte 26. Suction through the band 22 is
applied in the direction farrows 28. Feed duct 24 is
controlled bya control mechanism 30 so thatthe second type of tobacco is fed on to the band 22 in
pulses. Consequently, aswith band 10, a series of
longitudinallyseparated slugs 26 is formed on band 22.
Atonesection oftheirrespective runs bands 10 and 22 run parallel inface-to-faceabutmentandthe suctionsthrough the bands are arranged so that over this region of abutment all thesuction is through band 22. The control mechanisms 20 and 30 are arranged and synchronized so that overthe region of abutment the slugs 16 occupythe spaces between the slugs 26.
Atthis section all the suction is through band 22 and slugs 16 are therefore transferred onto band 22 in between slugs 26 so as to alternatewith them. The layer 32 oftobacco now on band 22, consisting of alternatetypes of tobacco, is then transferred from band 22 onto another conveyor band (not shown) for further processing and manufacture into cigarette rods each ofwhich consists oftwo demarcated types of tobacco.
Referring to Figure 2 there is shown an alternative arrangementof conveyorsfor making a layer of smoking material consisting of longitudinallydemarcated types oftobacco.
There is shown a first conveyor band 100 which is provided with alternate air-pervious and air-impervious sections 102,104 respectively. The band 100
moves in the direction of arrows 106. On the upper side of the lower run of band 100 is provided a suction
box 108 Underneath the lower run is a vertical
tobacco feed duct 110 arranged to feed quantities ofa first type oftobacco onto the band 100.Thetobacco feed duct 110 is controlled by a control mechanism 112which is synchronized with the movementof the band 100 so that tobacco isfed on to the band only when a perforated section 102 ofthe band is overthe feed duct.
In an alternative embodiment, not illustrated, the control mechanism 1 12 may be dispensed with an undeposited tobacco recovered and recycled.
There is shown a second conveyorband 114,which is air-pervious (provided by means of perforations
116) and arranged, by means of its own suction box 118, to receive depositedtobacco slugs 120from band 100. Band 114 acts as a transfer conveyorto transfer slugs 120 of a firsttype of tobacco from band 1 00to a third conveyor band 122.
Thethirdconveyorband 122 isa suction band and is provided with its own suction box 124 on its lower run.
Band 122 moves in the direction farrow 126 and is arranged so that slugs 120 of the firsttype of tobacco are transferred to the upstream part pars of its lower run from conveyor 1 14, the slugs 120 being retained on band 122 byvirtueofthesuction box124.
About halfway along the lower run of band 122 a second type oftobacco is deposited in the form of slugs 128 from a second vertical tobaccofeed duct 130. This duct 130, like duct 110, is controlled by a control mechanism 132 so thatthe deposition ofthe second type of tobacco to form the slugs 128 is pulsed and is synchronized with the gaps between the slugs 120Ofthefirsttypeoftobacco proceeding along conveyor 122. Consequently, a layer of tobacco 134 is formed on band 122 consisting of alternating slugs of thetwo types oftobacco fed through the feed ducts 110 and 130.
The layer oftobacco 134 is then transferred to a fourth conveyorl36forfurtherprodessing and manufacture into cigarette rods each of which consists oftwo demarcated types oftobacco.
In alternative embodiments (not illustrated) ofthe two aspects ofthe invention described with reference to Figures 1 and 2 it may be preferred to use gravimetric feed oftobacco ratherthan pnuematic feed pulsed in phase with perforated or otherwise air-pervious parts of a conveyor band.
Claims (16)
1. A method of providing on a moving conveyor band a layer of smokeable material consisting of at leasttwo demarcated types of smoking material,the method comprising the steps of, (a) applying or forming discrete slugs of a firsttype of smoking material onto or on a first moving conveyor band so thattheslugs of the first type of smoking material are longitudinally spaced on the first band, (b) applying or forming discrete slugs of a second type of smoking material onto or on a second moving conveyor band so thatthe slugs ofthe second type ofsmoking material are longitudinally spaced on the second band, (c) bringing the two bands into face-to-face abutmentsothattheslugs ofthefirsttype of smoking material alternate with the slugsofthe second type of smoking material, and, (d) transferring the slugs ofthe firsttype onto the second band in aiternating rela tionship with the slugs of the second type.
2. A method of providing on a moving conveyor band a layer of smokeable material consisting of at least two demarcated types of smoking material, the method comprising the steps of, (a) applying or forming discrete slugs of a firsttype of smoking material onto oron a first moving conveyor band so that the slugs of the first type of smoking material are longitudinally spaced on the first band, (b) applying or forming discrete slugs of a second type of smoking material onto oron the first moving conveyor so that the slugs of the second type of smoking material occupythe spaces between the slugs ofthe firsttype.
3. A method as claimed in claim 2 wherein the slugs ofthe first type of smoking material are applied to the first band from another band.
4. A method as claimed in any preceding claim wherein the layer formed thereby is transferred to a further band immediately after forming.
5. A method as claimed in any preceding claim wherein the discrete slugs of smoking material are formed on the first conveyor band buy a pulsed application of smoking material.
6. A method as claimed in claim 1 wherein the discrete slugs of smoking material are formed on the second conveyor band by a pulsed application of smoking material.
7. An apparatus for providing on a moving conveyor band a layer of smokeable material consisting of at least two demarcated types of smoking material, the apparatus comprising, (a) first and second moving conveyorbands,thetwo bands running in parallel face-to-face reiationship over a portion of their runs, (b) means for depositing first and second types of smoking material respectively on thefirst and second conveyor bands so that on each band there are formed longitudinally spaced slugs ofthe respective type of smoking material, and, (c) means for transferring the slugs ofthe first type from the first band onto the second band so as to alternate with the slugs of the second type.
8. An apparatus as claimed in claim 7 wherein the first and second conveyor bands are air pervious bands.
9. An apparatus as claimed in claim 8 wherein the means for depositing the smoking materials on the bands and comprises feed ducts applied to one face of the bands and suction chambers applied to the other face of the bands.
10. An apparatus as claimed in claim 9 wherein there is provided means to pulse the feed of the smoking materialsthrough the ducts and/orthe action ofthe suction chambers seas to provide spaced slugs ofthe smoking materials along the respective bands.
11. An apparatus as claimed in claim 9 or 10 wherein over the parallel face-to-face portion ofthe runs of the conveyor bands the suction through the bands is arranged so that all the suction is through the second bandandthe bands are synchronized so that over said portion the slugs on the first band occupy the spaces between the slugs on the second band.
12. An apparatus as claimed in any one of claims 7 to 11 wherein there is provided a third conveyor band and means for transferring said layer of smokeable material from said second conveyortothethird conveyor band.
13. An apparatusforprnviding on a moving conveyor band a layer of smokeable material consisting of at least two demarcated types of smoking material, the apparatus comprising, (a) a first moving conveyor band continuously air pervious over its length, (b) a first suction box applied to one face ofthe first conveyor band, (c) pulsed feed means for applying longitudinally spaced slugs of a first smoking material to the first conveyor band, (d) a second moving conveyor band comprising alternate airpervious and air-impervious sections, (e) a second suction box applied to a face of the second band, (f) feed means for applying longitudinally spaced slugs of a second smoking material to the second band, (g) transfer means fortransferring slugs ofthe second smoking material in a longitudinally spaced formation onto the first band, and, (h) means to synchronize the transfer ofthe slugs ofthe second smoking material onto the first band with the formation of the slugs of the first smoking material on the first band so that the first and second types of smoking material alternate longitudinallyonthefirstband.
14. An apparatus as claimed in claim 13 wherein the transfer means is a suction conveyor band.
15. A method of providing on a moving conveyor band a layer of smokeable material consisting of at least two demarcated types of smocking material, substantially as hereinbefore described with reference to Figure 1 or Figure 2 of the accompanying drawings.
16. An apparatus for providing on a moving conveyor band a layer of smokeable material consisting of at least two demarcated types of smoking material, substantially as hereinbefore described with referenceto Figure 1 or Figure 2 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB858500875A GB8500875D0 (en) | 1985-01-14 | 1985-01-14 | Rod of smokeable material |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8531337D0 GB8531337D0 (en) | 1986-01-29 |
| GB2169486A true GB2169486A (en) | 1986-07-16 |
| GB2169486B GB2169486B (en) | 1988-07-27 |
Family
ID=10572821
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB858500875A Pending GB8500875D0 (en) | 1985-01-14 | 1985-01-14 | Rod of smokeable material |
| GB08531337A Expired GB2169486B (en) | 1985-01-14 | 1985-12-19 | Improvements in or relating to the manufacture of a rod of smokeable material |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB858500875A Pending GB8500875D0 (en) | 1985-01-14 | 1985-01-14 | Rod of smokeable material |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8500875D0 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0307090A1 (en) * | 1987-08-11 | 1989-03-15 | Rothmans, Benson & Hedges Inc. | Tobacco blend formation |
| GB2172187B (en) * | 1985-03-16 | 1989-07-12 | Koerber Ag | Method and apparatus for making a stream of fibrous material |
| GB2221137A (en) * | 1988-07-12 | 1990-01-31 | Molins Plc | Cigarette making machine |
| FR2697726A1 (en) * | 1992-11-11 | 1994-05-13 | Molins Plc | Method of making cigarettes |
| GB2272828A (en) * | 1992-11-11 | 1994-06-01 | Molins Plc | Cigarette making machine |
| EP2853165A1 (en) * | 2013-09-26 | 2015-04-01 | HAUNI Maschinenbau AG | Method for the production of rod-like articles for the tobacco processing industry and suction conveying device |
| WO2019150101A1 (en) * | 2018-01-30 | 2019-08-08 | British American Tobacco (Investments) Limited | Suction belt for use in manufacturing a rod of aerosolisable material and method of manufacturing a rod of aerosolisable material |
| WO2019150102A1 (en) * | 2018-01-30 | 2019-08-08 | British American Tobacco (Investments) Limited | Apparatus for manufacturing a rod of aerosolisable material and method of manufacturing a rod of aerosolisable material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382266A (en) * | 1971-12-09 | 1975-01-29 | British American Tobacco Co | Production of smoking articles |
-
1985
- 1985-01-14 GB GB858500875A patent/GB8500875D0/en active Pending
- 1985-12-19 GB GB08531337A patent/GB2169486B/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382266A (en) * | 1971-12-09 | 1975-01-29 | British American Tobacco Co | Production of smoking articles |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172187B (en) * | 1985-03-16 | 1989-07-12 | Koerber Ag | Method and apparatus for making a stream of fibrous material |
| EP0307090A1 (en) * | 1987-08-11 | 1989-03-15 | Rothmans, Benson & Hedges Inc. | Tobacco blend formation |
| GB2221137A (en) * | 1988-07-12 | 1990-01-31 | Molins Plc | Cigarette making machine |
| GB2221137B (en) * | 1988-07-12 | 1992-09-16 | Molins Plc | Cigarette making machine |
| FR2697726A1 (en) * | 1992-11-11 | 1994-05-13 | Molins Plc | Method of making cigarettes |
| GB2272828A (en) * | 1992-11-11 | 1994-06-01 | Molins Plc | Cigarette making machine |
| US5370136A (en) * | 1992-11-11 | 1994-12-06 | Molins Plc | Cigarette making machine |
| GB2272828B (en) * | 1992-11-11 | 1997-01-08 | Molins Plc | Cigarette making machine |
| EP2853165A1 (en) * | 2013-09-26 | 2015-04-01 | HAUNI Maschinenbau AG | Method for the production of rod-like articles for the tobacco processing industry and suction conveying device |
| WO2019150101A1 (en) * | 2018-01-30 | 2019-08-08 | British American Tobacco (Investments) Limited | Suction belt for use in manufacturing a rod of aerosolisable material and method of manufacturing a rod of aerosolisable material |
| WO2019150102A1 (en) * | 2018-01-30 | 2019-08-08 | British American Tobacco (Investments) Limited | Apparatus for manufacturing a rod of aerosolisable material and method of manufacturing a rod of aerosolisable material |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8531337D0 (en) | 1986-01-29 |
| GB8500875D0 (en) | 1985-02-20 |
| GB2169486B (en) | 1988-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |