US2579950A - Apparatus for feeding cut tobacco - Google Patents

Apparatus for feeding cut tobacco Download PDF

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Publication number
US2579950A
US2579950A US695730A US69573046A US2579950A US 2579950 A US2579950 A US 2579950A US 695730 A US695730 A US 695730A US 69573046 A US69573046 A US 69573046A US 2579950 A US2579950 A US 2579950A
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United States
Prior art keywords
tobacco
feeding
bars
hopper
shorts
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Expired - Lifetime
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US695730A
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English (en)
Inventor
Molins Desmond Walter
Ruau Felix Frederic
Francis Albert Ernest
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Molins Machine Co Ltd
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Molins Machine Co Ltd
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Filing date
Publication date
Priority claimed from GB2393545A external-priority patent/GB600223A/en
Application filed by Molins Machine Co Ltd filed Critical Molins Machine Co Ltd
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Publication of US2579950A publication Critical patent/US2579950A/en
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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
    • A24C5/39—Tobacco feeding devices

Definitions

  • This invention concerns improvements in or relating to apparatus for feeding cut tobacco, for example apparatus for feeding cut tobacco to cigarette making or tobacco.
  • packing machines of the kind in which a mass of out tobacco is placed in a hopper or box from which it is removed by a carded conveyor or a combing member such as a carded roller (and hereinafter called a combing member) and in which a feeding device is provided to urge the tobacco towards such combing member.
  • a combing member such as a carded roller (and hereinafter called a combing member) and in which a feeding device is provided to urge the tobacco towards such combing member.
  • cut tobacco contains numerous short fragments of leaf which are included in the trade term shorts. In manipulating and feeding cut tobacco, these shorts tend to fall away from the main tobacco mass and it is important for commercial reasons and in order to obtain satisfactory cigarettes that they should be incorporated within the finished product of the machine.
  • apparatus of the kind described, comprising a plurality of members arranged side by side and adapted to receive tobacco on their upper surfaces and to permit shorts to fall between them, said members being adapted to move upwardly and forwardly to provide a feeding stroke to feed tobacco towards the combing member and to move downwardly and rearwardly in a return stroke, some of said feeding members beingadapted to effect a feeding stroke whilst others are making a return stroke.
  • the said feeding device comprises a plurality of feeding members disposed side by side in the hopper and arranged to receive tobacco on their upper surfaces and to permit shorts to fall between them on to the base of the hopper, said feeding members being adapted to feed tobacco by means of their upper surfaces towards the combing member.
  • the feeding members may comprise oscillatably mounted bars.
  • Means may be provided for collecting the shorts which fall between the said members, and to deliver the shorts to the combing member (e. g. a combing roller) in the vicinity of the area at which surplus tobacco is removed therefrom.
  • the combing member e. g. a combing roller
  • the surplus tobacco may be removed by a toothed member reciprocating transversely to the direction of movement of the surface of the combing roller, and presser means may be arranged to press the tobacco in the region where surplus is removed by the said toothed member and the shorts may be delivered to the tobacco removed by the said toothed member so as to mingle therewith.
  • the tobacco engaging surfaces of the bars may be toothed. Some of the bars may move forwards while others are moving backwards so as to provide a continuous feed of tobacco towards the combing member.
  • the base of the hopper may itself comprise a shaking or vibrating conveyor adapted to urge the shorts towards the combing member.
  • the shorts may be urged by said vibrating conveyor into the carding of the combing member or collected for redistribution over the mass of tobacco in the hopper in any known manner.
  • the said feeding device comprises aplurality of feeding members disposed side by side in the hopper and arranged to receive tobacco on their upper surfaces and to permit shorts to fall between them on to the base of the hopper, some of said feeding members being adapted to feed tobacco by means of their upper surfaces towards the combing member, while the other feeding members are adapted to engage by means of their under surfaces shorts lying on the base of the hopper which may be in the form of a vibrating conveyor and feed them towards the combing member.
  • the feeding members may comprise oscillatably mounted bars, the tobacco-feeding bars being arranged to oscillate in a direction. opposite to that of the shorts-feeding bars. Tobaccofeeding and shorts-feeding bars may be arranged alternately side by side.
  • the tobacco-engaging surfaces of the tobacco-feeding bars may be toothed and the shorts-engaging surfaces of the shorts-feeding bars may be toothed or carded.
  • Figure 1 is a cross-sectional elevation of one form of the apparatus.
  • Figure 2 is a cross-sectional elevation of a modified form of the lower part of the apparatus shown in Figure 1.
  • Figure 3 is a fragmentary section on the line III-III of Figure 2.
  • Figure 4 is a view of Figure 3 in the direction of the arrows IV-IV but not to scale for length.
  • Figure 5 is a section of Figure 3 on the line V-V but not to scale for length.
  • Figure 6 is a section of Figure 3 on the line VIVI but not to scale for length.
  • Figure 7 is a view showing a modified form of a part of the apparatus shown in Figure 2.
  • Figure 8 is a fragmentary plan view of part of the apparatus shown in Figure 1.
  • the tobacco is placed in a hopper 2 of the apparatus having a base which consists of a plate or support l forming a vibrating conveyor, similar to that disclosed in United States Patent No. 2,367,060, granted January 9, 1945 to Felix Frederic Ruau, and described in more detail later,
  • a carded combing member which in the present instance consists of a carded combing roller 5.
  • a carded combing member which in the present instance consists of a carded combing roller 5.
  • Above the base there are mounted two shafts 6 and l parallel to the axis of the combing roller, each of which carries along its whole length a row of eccentrics B. These shafts are arranged to be rotated in opposite directions.
  • the tobacco-feeding bars 9, which are made of wood or other suitable material, are adapted to be mounted on the eccentrics on the shaft, and for this purpose each bar is provided at one end with a hole Ii] into which fits an eccentric of one shaft, while towards the other end of the bar is a slot II to accommodate an eccentric ofthe other shaft, so that when the bar is driven by the one eccentric, the other, which rotates in the opposite direction, is free to move along the slot at the other end of the bar, but will at the same time co-operate with the eccentric on the other shaft in raising and lowering the bar.
  • the feeding stroke of a tobacco-feeding bar carries the bar upwardly and forwardly so as to feed forward the tobacco resting on the bars, and the upper surfaces of the bars may be smooth, although as shown in Figure 1 they are provided with teeth as will be mentioned later.
  • the combing roller 5 together with the arrangements for controlling the amount of'to- 'bacco removed by it from the hopper and picking the tobacco from the carded member are substantially the same as those shown and described in United States Patent No. 2,326,793, granted August 17, 1943 to Desmond Walter Molins and Felix Frederic Ruau, to which reference should be made for full details.
  • the carded combing roller 5 conveys the tobacco towards a wedge-shaped tobacco separating device generally indicated by l2 and comprising an endwise reciprocating toothed blade [3 (see Figures 1 and 8), as in the earlier patent, a support Hi and a guide l5.
  • the edge l6 of the blade constitutes a tobacco engaging surface and the reciprocation of the blade assists in separating the surplus tobacco from tobacco between the carding and also tends to cause an even distribution of thetobacco.
  • a roller 20 having pins 2i removes tobacco from the passage between the guide [5 and presser I1 and deposits it on the roller 5 at a position in advance of the edge 16.
  • the tobacco on the comber 5 after passing the separating device is picked from the carding by a picker roller 23 operating in a concave 24 whereafter it is manipulated by other mechanism in any known manner, according to the design of the machine on which the apparatus is fitted.
  • the base plate 4 is supported on springs 25.
  • An eccentric 26 on a rotatable shaft 21 has a sheave 28 on it to which is attached a plate 29 and another eccentric [26 has a sheave I28 to which is attached a plate 30.
  • the plate 29 is fixed to the plate 4 and the plate 30 has fixed thereto a balance weight 3
  • the eccentrics 26 and I26 and shaft 21 are supported on brackets 33 which are pivoted at 34 to the sides of the hop-per and adjustable by screws 35 so that the end of the plate which adjoins the combing roller can be adjusted relatively thereto
  • the shorts urged towards the combing roller by the vibrating plate 4 slide down a spring plate 36 into the trough 31 of a con veyor comprising a worm 38 which feeds them along the trough until they fall down a chute 39 which leads to a blower or the like 40 whereby they are raised upwards in a pipe ll which discharges them on to a baffle 42 supported on a rod Q3 and are thereby spread out over the roller 20.
  • the right-hand screw .35 in the position shown allows the bracket 33 to be swung back to a definite position after looking screws I33 have been released. This is convenient when an excess of shorts has accumulated as the space between the end of the plate l and the combing roller can be enlarged to allow the shorts to be rapidly moved over the plate 36 whose flexibility permits the adjustment to be made. The bracket 33 can then be moved back to the normal position against the left-hand screw 35.
  • the tops of the feeding bars 9 may be smooth. It i found, however, that possibly better results are obtained when the bars. are roughened, for example by pins 409, Figure 1, arranged to extend about one third or one quarter of the length of the bars from the end nearest to the combing roller 5. In such an arrangement it is believed that with the mass of tobacco in the hopper only the front portion is urged by the roughened portions of the bars whereas the rear portion of the tobacco in the hopper tends to slide. This may or may not be so, but it is definitely found very satisfactory to provide pins on only the first quarter or one third of the bar nearest to the combingroller.
  • FIG. 2 most of the parts shown in Figure 2 which are the same as those shown in Figure 1 have the same references and need no further description.
  • the feeding bars shown and described below are operated by shafts bearing eccentrics as before, but in the present case there are bars for feeding the shorts towards the combing roller as well as the tobaccofeeding bars.
  • a tobacco-feeding bar I09 is arranged next to a shorts-feeding bar 44, shown broken in Figure 2, and next to that is another tobacco-feeding bar 209 which is 180 out of phase with the bar I 09.
  • the tobacco-feeding bars 109 and 209 are arranged to be driven by a shaft I01, the shortsfeeding bars '44 by a shaft I06, the eccentrics being marked 8 as before. All adjacent bars 44, I09 and 20.9 are separated by washers 309, Figure 3.
  • the shorts-feeding bars are provided on their undersides with pins, carding or the like, or serrated as shown at 45 so as to engage the shorts on the base 4 of the hopper, and are disposed a suitable distance above the base to be able to engage such shorts and feed them forward.
  • the tobacco-feeding bars do not extend quite so far down towards the hopper base as do the shortsfeeding bars, (see Figure 3), but are of a sufiicient depth to prevent any excessive building-up of shorts in the spaces between the shorts-feeding bars.
  • the tobacco-feeding bars may be provided with pins 509 on their upper surfaces as shown in Figure '7.
  • Apparatus for feeding cut tobacco comprising a hopper for the tobacco, a combing member to remove tobacco from the hopper, and a feeding device to support the mass of tobacco in the hopper and urge tobacco against the combing member, the said feeding device comprising a plurality of feeding members each of which extends length wise of the direction of feed and which are disposed side by side in the hopper and arranged to receive tobacco on their upper surfaces and to permit shorts to fall between them, said feeding members being supported for bodily orbital movement lengthwise of the hopper, and means to move some of said members upwardly and for wardly to urge tobacco by means of their upper surfaces against the combing member and concurrently to move other of said members downwardly and rearwardly in a return stroke, wherein the said feeding members have smooth porfering amounts of tobacco in the hopper.
  • Apparatus for feeding out tobacco comprising a hopper for the tobacco, a combing member to remove tobacco from the hopper, and. a feeding device to support the mass of tobacco in the hopper and urge tobacco against the combing member
  • the said feeding device comprising a plurality of oscillatably mounted bars which extend lengthwise of the direction of feed and which are arranged side by side in the hopper so as to support the mass of tobacco in the hopper and are supported for oscillation in orbital paths to impart a feeding motion to the tobacco to urge the latter towards and press it against the combing member, mechanism for concurrently imparting to some of said bars a feed stroke and to other bars a return stroke, the upper surfaces of the said bars having smooth portions on which tobacco in that portion of the hopper, remote from the combing member, can slide.
  • Apparatus for feeding cut tobacco comprising a hopper for the tobacco, a combing member to remove tobacco from the hopper, and a feeding device to support the mass of tobacco in the hopper and urge tobacco against the combing member, the said feeding device comprising a plurality of feeding members each of which extends lengthwise of the direction of feed and which are disposed side by side in the hopper and arranged to receive tobacco on their upper surfaces and to permit shorts to fall between them, said members being supported for movement in orbital paths so as to move alternately towards and away from the combing member to feed tobacco to the combing member, mechanism for concurrently moving some of said members in a feed stroke and others in a return stroke, wherein the feeding members have smooth upper surfaces which are unbroken along the greater part of their lengths and have projections at those parts near the combing member, whereby tobacco in the hopper near to the combing member can be engaged by the projections while tobacco in the hopper further away from the combing member can slide on the unbroken smooth parts of the feeding members due to an increase of pressure
  • Apparatus for feeding cut tobacco comprising a hopper for the tobacco, a combing member to remove tobacco from the hopper, and a feeding device to support the mass of tobacco in the hopper and urge tobacco against the combing member, the said feeding device comprising a plurality of feeding members each of which extends lengthwise of the direction of feed of the tobacco and which are disposed in the hopper and arranged to receive tobacco on their upper surfaces and to permit shorts to fall between them on to the base of the hopper, some of said feeding members being positioned to feed tobacco by means of their upper surfaces against the combing member, while the other feeding members are positioned adjacent to the base of the hopper to engage by means of their under sur-.
  • feeding members comprise oscillatably mounted bars, the tobacco-feeding bars being arranged to oscillate in a direction opposite to that of the shorts-feeding bars.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
US695730A 1945-09-17 1946-09-09 Apparatus for feeding cut tobacco Expired - Lifetime US2579950A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2393545A GB600223A (en) 1945-09-17 Improvements in or relating to apparatus for feeding cut tobacco

Publications (1)

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US2579950A true US2579950A (en) 1951-12-25

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US695730A Expired - Lifetime US2579950A (en) 1945-09-17 1946-09-09 Apparatus for feeding cut tobacco

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FR (1) FR933695A (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1774478A (en) * 1922-04-17 1930-08-26 Endless Belt Corp Hopper
US1781239A (en) * 1926-08-27 1930-11-11 Molins Walter Everett Cigarette-making machinery
GB367431A (en) * 1930-11-20 1932-02-22 Walter Everett Molins Improvements in or relating to cigarette making machines
DE564619C (de) * 1932-11-21 Sieg Kg Schuettelrinne fuer selbsttaetige Waagen
GB506615A (en) * 1937-12-25 1939-06-01 Carl Wilhelm Mueller Jun Improvements in tobacco spreaders for cigarette-making machines
US2326793A (en) * 1938-07-14 1943-08-17 Molins Machine Co Ltd Method and apparatus for feeding cut tobacco
US2367060A (en) * 1941-07-22 1945-01-09 Molins Machine Co Ltd Apparatus for feeding cut tobacco
US2416020A (en) * 1941-07-22 1947-02-18 Molins Machine Co Ltd Apparatus for feeding cut tobacco

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE564619C (de) * 1932-11-21 Sieg Kg Schuettelrinne fuer selbsttaetige Waagen
US1774478A (en) * 1922-04-17 1930-08-26 Endless Belt Corp Hopper
US1781239A (en) * 1926-08-27 1930-11-11 Molins Walter Everett Cigarette-making machinery
GB367431A (en) * 1930-11-20 1932-02-22 Walter Everett Molins Improvements in or relating to cigarette making machines
GB506615A (en) * 1937-12-25 1939-06-01 Carl Wilhelm Mueller Jun Improvements in tobacco spreaders for cigarette-making machines
US2326793A (en) * 1938-07-14 1943-08-17 Molins Machine Co Ltd Method and apparatus for feeding cut tobacco
US2367060A (en) * 1941-07-22 1945-01-09 Molins Machine Co Ltd Apparatus for feeding cut tobacco
US2416020A (en) * 1941-07-22 1947-02-18 Molins Machine Co Ltd Apparatus for feeding cut tobacco

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Publication number Publication date
FR933695A (fr) 1948-04-28

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