US1863666A - Method of and apparatus for loosening tobacco particles and frering them from dust - Google Patents
Method of and apparatus for loosening tobacco particles and frering them from dust Download PDFInfo
- Publication number
- US1863666A US1863666A US273642A US27364228A US1863666A US 1863666 A US1863666 A US 1863666A US 273642 A US273642 A US 273642A US 27364228 A US27364228 A US 27364228A US 1863666 A US1863666 A US 1863666A
- Authority
- US
- United States
- Prior art keywords
- dust
- tobacco
- air
- tobacco particles
- frering
- 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.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/06—Loosening tobacco leaves or cut tobacco
Definitions
- This invention relates to a rocess and an apparatus for loosenin and reeing tobacco from dust designed an adapted for use with pneumatic conveyances.
- the air current to push upon the ipe walls or upon the abutment members. ereby, how ever, the tobacco particles may be damaged or pulverizedunintentionally.
- the preeent'invention relates to an improved method and means for freeingthe to bacco from dust in its passage through the feed tube.
- the air which carries the tobacco with it, is given alternately higher and lowor rates of speed.
- the result .of this is that 'the tobacco advances more quickly at the laces where the air speed is greater, where- 59 y it is separated and the dust set free, and at those points, at which the speed of the air current is reduced, the tobacco is turned and whirled about by the whirling movement of the air, and com letel freed from dust.
- the varying spec of tie air current as it carries t e tobacco along with it may be obtained by man difierent means, for instance, the speed of t e air current can be increased by the use of fans or by the influx of comas pressed air or air may be drawn in at certain laces in the tube and by other similar means.
- the varying speed of the air current is obtained by widening and constricting parts of the feed tube.
- a particularly effective configuration of a ipe for the purpose in question is illustrated 1n the figure.
- the free sectional area of this pipe is different at different parts, in consequence whereof the velocity of the air varies accordingly.
- the efiect thereof is that the :same and carried away.
- a device for pneumatically separating adhering tobacco particles and dust which consists exclusively of a tube of a configuration having alternate narrow and wide portions to thereby vary the speed of the air in the tube.
Description
June 21", 1932 v LORENTZ 1,863,666
IETHOD OF AND APPARATUS FOR LOOSENING TOBACCO PARTICLES AND EREEING THEMFROI DUST Filed April 28, 1928 J12 wzzaa-z v Wide/22in Ere/2g y ##VM Patented June 21, 1932 VLIIENTIN LOBENTZ, O1 ZOE-EDEN, GEBKM,
assmnoa r0 nan-1n CIGARETTE n- OHINE COMPANY AITIENGESELLSCHAI'I', OI DBESDEN, 0mm I I ETHOD' 01' AND APPABAT'UB FOB LOOSENIIIG TOBACCO PAR-T163138 AND FIRING" THEE 1B0]! DUST Application filed April 28, 1928, Serial Io. 273,842, and in Germany larch 19, i887.
This invention relates to a rocess and an apparatus for loosenin and reeing tobacco from dust designed an adapted for use with pneumatic conveyances.
6 The pneumatic conveyance of cut tobacco to the various points where it is cleaned, loosened or otherwise treated is already known.
' The ipes through which the tobacco is conveyed rom the cutting machineare generally i of cylindrical section. It has already been proposed to curve them strongly, as well as to provide them with abutment members, in order to loosen the tobacco particles and-t0 separate more thoroughly the dust from the 15 tobacco,
the air current to push upon the ipe walls or upon the abutment members. ereby, how ever, the tobacco particles may be damaged or pulverizedunintentionally.
The preeent'invention relates to an improved method and means for freeingthe to bacco from dust in its passage through the feed tube. i In the process, according to the present 25 invention, the air, which carries the tobacco with it, is given alternately higher and lowor rates of speed. The result .of this is that 'the tobacco advances more quickly at the laces where the air speed is greater, where- 59 y it is separated and the dust set free, and at those points, at which the speed of the air current is reduced, the tobacco is turned and whirled about by the whirling movement of the air, and com letel freed from dust. The varying spec of tie air current as it carries t e tobacco along with it may be obtained by man difierent means, for instance, the speed of t e air current can be increased by the use of fans or by the influx of comas pressed air or air may be drawn in at certain laces in the tube and by other similar means. referably,the varying speed of the air current is obtained by widening and constricting parts of the feed tube.
A particularly effective configuration of a ipe for the purpose in question is illustrated 1n the figure. The free sectional area of this pipe is different at different parts, in consequence whereof the velocity of the air varies accordingly. The efiect thereof is that the :same and carried away.
in that this latter is then caused by tobacco passing through the smallerfree sectional areas is drawn asunder so as to expose the dust to the air, whereas in the lar er free sectional areas the eddies there forming causethe tobacco particles to whirl through one another whereby the particles are loosened, and dust is completely removed from the be drawing shows a side view of a pipe through which the cut tobacco is conveyed, for instance, from the cutting machine to a cigarette making machine.- This tube has narrow portions 106, 107 where the speed of the air is by far higher than in the wider portions 108 and 109. The tobacco is drawn asunder in the narrow sectional areas and whirled through in the larger ones. The arrowsindieate the direction in which the air is streaming throu h that tube. I wish it to be understood that t e drawing shows merely an exirp ple. Many other configurations of the tube or of an equivalent conduit for it are possible, and also equivalent means may. be used or the particular purpose intended. I claim 1. A method of loosening tobaheo particles and freeing same from dust consisting in conveying the tobacco particles by means of an air stream having difierent speeds in difierent parts of its path.
2. A device for pneumatically separating adhering tobacco particles and dust which consists exclusively of a tube of a configuration having alternate narrow and wide portions to thereby vary the speed of the air in the tube.
In testimony whereof I affix my signatnre. v
VALENTIN Lon'nu'raf
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1863666X | 1927-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1863666A true US1863666A (en) | 1932-06-21 |
Family
ID=7746576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US273642A Expired - Lifetime US1863666A (en) | 1927-03-19 | 1928-04-28 | Method of and apparatus for loosening tobacco particles and frering them from dust |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1863666A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2941667A (en) * | 1957-04-16 | 1960-06-21 | Brown & Williamson Tobacco | Leaf tobacco separator and method |
| US3512342A (en) * | 1968-07-01 | 1970-05-19 | Int Harvester Co | Clean-boll separator conveyor for cotton harvester |
| US3618761A (en) * | 1969-06-30 | 1971-11-09 | Int Harvester Co | Clean-boll separator conveyor for cotton harvester |
| US4045334A (en) * | 1976-05-28 | 1977-08-30 | Amf Incorporated | Method and apparatus for separating lighter and heavier portions of threshed tobacco |
| US4915824A (en) * | 1985-08-12 | 1990-04-10 | Surtees Guy F | Pneumatic classifier for tobacco and method |
| US5205415A (en) * | 1991-07-10 | 1993-04-27 | The Standard Commercial Tobacco Co., Inc. | Modular classifier |
| US5325875A (en) * | 1987-08-24 | 1994-07-05 | Universal Leaf Tobacco Co., Inc. | Apparatus for separating threshed leaf tobacco |
| US6435191B1 (en) | 1999-02-26 | 2002-08-20 | Dimon Inc. | Tobacco separator |
-
1928
- 1928-04-28 US US273642A patent/US1863666A/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2941667A (en) * | 1957-04-16 | 1960-06-21 | Brown & Williamson Tobacco | Leaf tobacco separator and method |
| US3512342A (en) * | 1968-07-01 | 1970-05-19 | Int Harvester Co | Clean-boll separator conveyor for cotton harvester |
| US3618761A (en) * | 1969-06-30 | 1971-11-09 | Int Harvester Co | Clean-boll separator conveyor for cotton harvester |
| US4045334A (en) * | 1976-05-28 | 1977-08-30 | Amf Incorporated | Method and apparatus for separating lighter and heavier portions of threshed tobacco |
| DE2648457A1 (en) * | 1976-05-28 | 1977-12-15 | Amf Inc | METHOD AND DEVICE FOR SEPARATING LIGHTER AND HEAVY TOBACCO PARTS |
| US4915824A (en) * | 1985-08-12 | 1990-04-10 | Surtees Guy F | Pneumatic classifier for tobacco and method |
| US5325875A (en) * | 1987-08-24 | 1994-07-05 | Universal Leaf Tobacco Co., Inc. | Apparatus for separating threshed leaf tobacco |
| US5476109A (en) * | 1987-08-24 | 1995-12-19 | Universal Leaf Tobacco Co., Inc. | Apparatus for separating threshed leaf tobacco |
| US5205415A (en) * | 1991-07-10 | 1993-04-27 | The Standard Commercial Tobacco Co., Inc. | Modular classifier |
| US5358122A (en) * | 1991-07-10 | 1994-10-25 | The Standard Commercial Tobacco Company, Inc. | Multiple stage tobacco classifier |
| US6435191B1 (en) | 1999-02-26 | 2002-08-20 | Dimon Inc. | Tobacco separator |
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