US3548839A - Machine for threshing tobacco leaves and separating the threshed tobacco - Google Patents

Machine for threshing tobacco leaves and separating the threshed tobacco Download PDF

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Publication number
US3548839A
US3548839A US767769A US3548839DA US3548839A US 3548839 A US3548839 A US 3548839A US 767769 A US767769 A US 767769A US 3548839D A US3548839D A US 3548839DA US 3548839 A US3548839 A US 3548839A
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US
United States
Prior art keywords
threshing
cap
chamber
tobacco
separating
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
Application number
US767769A
Other languages
English (en)
Inventor
Olof Karlsson
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.)
Arenco AB
Original Assignee
Arenco AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arenco AB filed Critical Arenco AB
Application granted granted Critical
Publication of US3548839A publication Critical patent/US3548839A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A24B5/00—Stripping tobacco; Treatment of stems or ribs
    • A24B5/10—Stripping tobacco; Treatment of stems or ribs by crushing the leaves with subsequent separating

Definitions

  • Means are provided to supply tobacco leaves to said threshing chamber, and a separating chamber surrounds at least the major part of said threshing chamber.
  • the threshing chamber has a substantially cylindrical open-topped wall and is directly connected with said separating chamber partly by a circumferential outlet opening for the threshed tobacco in the lower part of the wall, provided with a grid, and partly by an annular opening between the upper part of the threshing chamber wall and a vertical cap.
  • the cap is tubular in shape and open at both ends and the open, upper end extends centrally in the housing and above the separating chamber. The open, bottom end of the cap extends into the open-topped part of the threshing chamber.
  • the chamber is connected direct to a surrounding annular separating chamber, partly by an outlet opening provided with a grid for the threshed tobacco and partly by an annular opening between the upper part of the threshing chamber and a cap situated above the threshing chamber coaxially with the same, wherein the diameter of the cap is less, at leastat the lower part thereof, than the diameter of the threshing chamber.
  • the present invention affords a simple solution to this problem by making the cap tubular in shape and open at both ends. ln this way the separating air will be divided into two generally parallel branches, namely one stream, which passes through the upper part of the chamber in the usual way and one stream, which passes throughthe tubular cap. owing to the flow conditions in the machine the air speed in the cap becomes high when the load on the machine is high, and the desired reduction in the air speed in the upper part of the chamber can be achieve achieved without difficulty.
  • the illustrated machine has a tubular, upstanding housing 1, which tapers at the top and the upper, open end of which is sealingly connected to the suction pipe 2 of a fan not shown.
  • a threshing chamber 3 including a threshing drum 5 rotating around a vertical shaft 4 and a tubular casing 6, which is arranged so that a vertical annular separating chamber 7 is obtained between the housing 1 and the threshing chamber 3, which is provided with an outlet opening 8, covered by a grid 8 and extending substantially around the whole periphery of the chamber 3.
  • the separating chamber 7 extends down between a lower casing 9 and the housing 1 and upwards between a tubular cap 10, situated above the chamber 3, and the housing 1.
  • the cap 10 which is open at both ends, is firmly fixed to the housing 1 by a vertical plate 11 situated immediately above a section 12, which is shielded from the separating chamber and in which is arranged an opening to the threshing chamber 3.
  • Deflectors l5 are positioned on the housing 1 adjacent the top of the casing 6. Extending through this opening is a vibratory conveyor 13 intended for supplying the tobacco leaves.
  • the threshing wheel 5 is driven by a belt drive transmission 14, which in turn is driven by a motor (not shown).
  • Air is sucked into the separating chamber 7 through the fan (not shown) and suction pipe 2 via the annular opening between the housing 1 and the casing 9, through holes in the casing 9.
  • some of the separating air will be sucked into the cap 10 at its lower portion and, after assing the cap 10, join the air, which has passed between e cap 10 and the housing 1.
  • the top of casing 6 and the bottom of cap 10 forms an annular opening 3' Separation of the threshed tobacco is effected in the manner described in the above mentioned patent.
  • a machine for threshing tobacco leaves and separating the threshed tobacco comprising a threshing chamber having a vertical, substantially cylindrical open-topped wall, the lower portion of the wall provided with outlet openings for the threshed tobacco; a threshing wheel adjacent the outlet openings, a vertical shaft in the threshing chamber supporting the threshing wheel; means for supplying tobacco leaves to the threshing chamber; a vertical cap extending above the threshing chamber wall and positioned to provide an annular opening between the threshing chamber wall and the bottom of the cap whereby the annular opening is located above the threshing wheel; a tubular housing enclosing the threshing chamber and the cap; a separating chamber formed between the tubular housing and the cap; a suction pipe communicating with the upper portion of the tubular housing; the cap being tubular in shape and being provided with an open top and bottom, the open top being located centrally in the housing at a level above the separating chamber and the open bottom end extending

Landscapes

  • Threshing Machine Elements (AREA)
US767769A 1967-10-31 1968-10-15 Machine for threshing tobacco leaves and separating the threshed tobacco Expired - Lifetime US3548839A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE14950/67A SE324314B (xx) 1967-10-31 1967-10-31

Publications (1)

Publication Number Publication Date
US3548839A true US3548839A (en) 1970-12-22

Family

ID=20299924

Family Applications (1)

Application Number Title Priority Date Filing Date
US767769A Expired - Lifetime US3548839A (en) 1967-10-31 1968-10-15 Machine for threshing tobacco leaves and separating the threshed tobacco

Country Status (11)

Country Link
US (1) US3548839A (xx)
AT (1) AT278615B (xx)
BE (1) BE722914A (xx)
BR (1) BR6803644D0 (xx)
DE (1) DE6803124U (xx)
DK (1) DK120475B (xx)
ES (1) ES359737A2 (xx)
FR (1) FR96060E (xx)
GB (1) GB1246314A (xx)
NL (1) NL6814994A (xx)
SE (1) SE324314B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303502A (en) * 1980-07-14 1981-12-01 Lacher Douglas M Herb processing machine
CN113017136A (zh) * 2019-12-25 2021-06-25 秦皇岛烟草机械有限责任公司 一种打叶风分设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1563107A (xx) * 1968-02-26 1969-04-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303502A (en) * 1980-07-14 1981-12-01 Lacher Douglas M Herb processing machine
CN113017136A (zh) * 2019-12-25 2021-06-25 秦皇岛烟草机械有限责任公司 一种打叶风分设备

Also Published As

Publication number Publication date
FR96060E (xx) 1972-05-19
ES359737A2 (es) 1970-06-16
DK120475B (da) 1971-06-01
GB1246314A (en) 1971-09-15
DE6803124U (de) 1969-02-13
BE722914A (xx) 1969-04-01
NL6814994A (xx) 1969-05-02
AT278615B (de) 1970-02-10
BR6803644D0 (pt) 1973-02-01
SE324314B (xx) 1970-05-25

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