US2159404A - Tobacco leaf feed - Google Patents

Tobacco leaf feed Download PDF

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Publication number
US2159404A
US2159404A US117322A US11732236A US2159404A US 2159404 A US2159404 A US 2159404A US 117322 A US117322 A US 117322A US 11732236 A US11732236 A US 11732236A US 2159404 A US2159404 A US 2159404A
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United States
Prior art keywords
stem
leaves
butts
wheel
rolls
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Expired - Lifetime
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US117322A
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English (en)
Inventor
Rupert E Rundell
Joseph A Neumair
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International Cigar Machinery Co
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International Cigar Machinery Co
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Filing date
Publication date
Priority to BE422334D priority Critical patent/BE422334A/xx
Application filed by International Cigar Machinery Co filed Critical International Cigar Machinery Co
Priority to US117322A priority patent/US2159404A/en
Priority to GB15177/37A priority patent/GB496719A/en
Priority to FR823214D priority patent/FR823214A/fr
Application granted granted Critical
Publication of US2159404A publication Critical patent/US2159404A/en
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    • 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

Definitions

  • This invention relates to stemming machines, more particularly to tobacco leaf feeds for machines of this type.
  • the main object of the invention is to separate the tobacco leaves from a bunch or hand and transfer them singly to a stemming machine.
  • the prior leaf feeds were subject to the disadvantage that occasionally a plurality of leaves would be transferred to the machine whereby the samewas clogged or its operation impaired.
  • the present leaf feed has been provided with a system of control fingers arranged to engage the stem butts of successive leaves in transit to the machine, after they have been initially separated by slowly revolving flails and transferred to continuously rotating accelerator rolls which increase the spacing of the stem butts, and stop the rotation of said rolls whenever there isa succession of stem butts therein with the spacing requisite for delivery to the stemming machine in successive cycles thereof.
  • the stem butts cannot be fed faster than the rate at which the gripper wheel removes them and piling up of stem butts and the removal of more than one leaf at a' time is prevented.
  • the gripper wheel will transfer the stem butt to a gripper turret which seizes it, makes nearly a full turn before reaching the station Where the stem butt is delivered to the machine, wherefore it will tend to pull its leaf portion away from the following leaf if entangled therewith. It may be desirable where floor space need not be conserved to omit the gripper wheel and arrange the t'urretin its place at an acute angle to the presented stem butts, to directlyreinove and transfer the leaves to the stemming machine,
  • a further object of the invention is to separate entangled leaves prior to the delivery of their stembutts tothe accelerator rolls.
  • a traveling rake having a component of movement in the direction of movement of the forwarded leaves.
  • Still another object of the invention is to improve the operation of the accelerator rolls, making an actual success of what was formerly a failure.
  • a series of opposed yielding members have been provided at the accelerator rolls to press the stem butts into the apices between adjacent rolls so that the stem butts will not tend to remain lodged therein, as heretofore but will be advanced out of the respective apex by the coaction of said members with the rolls.
  • the adjacent faces of these members it may be noted have a configuration corresponding to the desired path of the stem butts through the accelerator rolls.
  • Fig. 6 is a cross-section of the beater box taken on line 6-6 of Fig. 4 showing the heaters which separate the butt ends of the stems;
  • Fig. 7 is a front view of the leaf conveyor and rake unit which tends to separate any leaves if they become entangled;
  • Fig. 8 is a sectional view of said unit taken on line 8-8 of Fig. 8;
  • Fig. 9 is a side View of the accelerating rolls each traveling faster than the preceding roll which separates the stems;
  • Fig. 10 is a plan view of the same
  • Fig. 11 is a side elevation of the drive for the accelerating rolls
  • Fig. 12 is a side elevation of a portion of the accelerating rolls showing the control fingers of the feed unit
  • Fig. 13 is a plan view of the same
  • Fig. 14 is a plan view of the transfer turret which delivers the leaves from the accelerating rolls to the turret delivering to the stemming machine;
  • Fig. 15 is a partial end elevation of the same
  • Fig. 16 is anenlarged view of the transfer turret taken from line
  • Fig. 17 is an end view of the turret which delivers the leaves to the stemming machine
  • Fig. 18 is a view of Fig. 1'7, on a smaller scale, showing the mechanism for opening the jaws of the turret at the discharge station;
  • Fig. 19 is a side elevation of the same.
  • the reference character A designates generally the feed-in mechanism, B the stem butt separator, C the stem butt separator star wheel unit, which delivers, so far as is practicable at this point, one stem at a time to the leaf conveyor D, carrying the leaves through a rake mechanism E which acts to straighten any entangled leaves before entering the speed-up separating rolls F from which the separated leaves are delivered one at a time to the turret G which transfers them to a turret H delivering to grippers J of the stemming machine shown in Fig. 2.
  • a bundle of leaves When a bundle of leaves is received by the operator of the machine, he removes the tie leaf from the bundle and strikes the butt ends of the leaves upon the plate 10 (Fig. 1) which action serves toloosen them. He then disposes them upon suitable forward means which may be of well known construction comprising the wide belt 1 l and auxiliary belts l2, with their butt ends overhanging the belt H and aligned by the plate It in which position they are advanced in a direction at right angles to their stems. While the leaves may be otherwise held against displacement on the feed belt I I during the butt-separating operation, as shown herein, there is provided means cooperating with the forwarding means for holding the leaves against displacement while their butts are being separated.
  • This holding means includes a pressure belt i3 overrunning and frictionally driven from the belt H and arranged to press the stem butts against the belt i l to prevent the beating means from displacing or dragging the leaves off the belt. Since this pressure belt, as well as the belts H and it, are of the same construction disclosed in Patent No. 1,301,193, granted to C. V. Strickland, a more detailed description of the same is deemed unnecessary. However, it may be noted that the belt [2a. (Fig. 1) may be driven from the shaft of the idle pulleys of the belts l2 to advance the stem butts of tobacco leaves along the plate It.
  • the butt-separating mechanism (see Figs. 4 and 6) includes a casing I4 open at its top and bottom and suitably supported from the main frame of the machine.
  • the side walls of the easing are cut away to provide a stem-way [5, as is clearly shown in Fig. 6; and through this stemway the stem butts S, which overhang the adjacent edge of the feed belt ll, enter and leave the casing while the leaves are held between the belt H and the cooperating pressure belt l3.
  • the butt-separating mechanism includes two series of flails l6 movable in an orbital path between and along the stem butts. The flails of each series are pivoted to rotary members I! journaled in suitable bearings formed in the casing l4. Each of the rotary members I!
  • the members H are driven from the main drive shaft l8 (Fig. 1) said shaft being provided with a sprocket [9 driving a sprocket 2!] on a shaft 2
  • is also provided with a bevel gear 23 meshing with a bevel gear 24 mounted on shaft 25, this latter shaft carrying spiral gears (not shown) which drive spiral gears (not shown) on y the members H.
  • the feed mechanism advances the leaves into the range of action of a star wheel 30, Figs. 3, 4.- and 5.
  • the initially separated stems are then picked off one by one so far as is practical at this point by the above mentioned star wheel 36 which has notches in its periphery designed to receive one stem at a time.
  • the wheel 39 delivers the butt end of each leaf to a sawtoothed wheel 3i provided with pockets 32 wherein successive stem butts are received.
  • the wheels 33 and SI are intermittently driven from an eccentric (Fig. 1) carried by shaft It on which is loosely mounted a strap connected by an eccentric rod 34 (Figs. 1, 3 and 4) to an arm 35 fastened to a shaft 33 journaled in bearings of the casing M. An oscillatory motion is thereby imparted to shaft 36.
  • a gear segment 31 attached to shaft 36 (Fig. 3) meshes with a pinion 3B loosely mounted on shaft 39 and operating a pawl and ratchet mechanism hereinafter described, which imparts intermittent motion to shaft 39 carrying the saw-toothed wheel 3
  • Shaft 39 is journaled at one end in a bearing in a flange formed on the casing l4 and, at its other end, in a bracket 40 attached to said casing.
  • Pinion 38a. fastened on the protruding end of shaft 39 drives a gear 4
  • a shaft Ila mounted below shaft 42 (Fig. 3) is provided with gears I Eb and I I0 meshing respectively with the gear 43 and the gear lid on the shaft lle which carries the drive pulleys of the belts H and I2 (Fig. 1) whereby the latter are intermittently driven in synchronism with the wheels 39 and 3!.
  • engaging with a ratchet wheel 52 fastened on shaft 39.
  • the pawl is tensioned by a spring (not shown) spanning the posts 53 and 54 (Fig. 5) carried by the pawl El and arm 553, respectively.
  • An arm 55 loosely mounted on shaft 39 (Fig. 5) carries a feeleri 56 disposed in the path of the butt ends of the leaves advanced by the wheel 3
  • the star wheel 30 revolves intermittently with a linear speed equal to that of the belts H and I2 and picks a stem butt at a time from the mass of separated stem butts on the feed belt ii and delivers it to pockets 32 of wheel 3
  • This plunger is supported in a block 6
  • the stem butt initially engages the feeler While it is in its normal position 56', as indicated by fragmentary dotted lines (Fig.
  • the shroud will hold the pawl disengaged for a position of its stroke, until the pawl slips off the end of said shroud and re-engages and drives the ratchet wheel 3
  • are filled it will be turned only a fraction of the extent it would otherwise be displaced during the feeding stroke of the pawl.
  • the shroud will hold the pawl disengaged a maximum duration of each feeding stroke and the wheel 3
  • the feeler 5'6 governs the drive of the star wheel 30 and feed-in belts I l and I2, so that a stem butt will be transferred to one of the pockets of the wheel 3
  • jamming of the stems cannot occur between the feed wheels 30 and 3
  • the belt 62 is driven by a pulley 65 (Fig. 3) integral with an idler sprocket 66 mounted on a stud 61 and runs over an idler pulley 68 on shaft 39 and is held taut by a sheave 63 integral with a sprocket 69 on shaft 10.
  • the stems gripped between the belt 62 and sheave 63 are led between the opposed runs of the conveyor chains II and 12 and thereby gripped and advanced by the same.
  • and 12 run over the sprockets 66 and 69 and idler sprockets l3 and 14 respectively (Fig.
  • the motion of the rakes has a component in the direction of movement of the leaves forwarded by the conveyor in order that this operation may be carried out efficiently while the chains H and 12 are traveling.
  • Suitable mechanism for actuating the rakes comprising a casing 15 supporting an upper shaft 76 and a lower shaft i1, said shafts being suitably inclined and equipped near their ends with sprockets I8 driving a pair of chains 79 which are connected by spaced bars 80 carrying rakes 8
  • the main shaft l8 (Fig.
  • and I2 advance the stem butts of the leaves into the range of action of a device which operates to accelerate and further separate the stem butts so that they may be removed by suitable mechanism hereinafter described and advanced singly through the stemming machine.
  • the separating or spacing device includes series of opposed rollers, the upper rollers being offset relative to the lower rollers thereof to form a stem way receiving stem butts advanced by the conveyor chains.
  • the rollers of each series are driven at progressively increasing speeds, and the rollers of alternate series are staggered relative to the series flanking them. By virtue of this staggered relation of the rolls there is provided a tortuous stem way wherein the stem butts are spaced as disclosed in the Strickland patent referred to above.
  • the stem way has the same formation, and there are also provided three sets of opposed members 9
  • are provided with slots 93 admitting the journals 94 of the outermost rolls 90 which limit their movement to a vertical direction and are also provided with apertures 95 large enough to pass over the journals of the intermediate rolls 94 and allow up and down movement thereof.
  • are threaded adjusting screws 96 resting against cross strips 91 supported. by' the casing 98 (Fig. 13) carrying the shafts 94.
  • the screws 9'6 provide for the proper set-ting of the lowermost position of plates SI for the particular thickness of stem butt being operated on.
  • the lower members 92 are provided with apertures 99 large enough to pass over shafts 94 and allow up and down movement thereof.
  • the plates 92 are provided with legs I00 resting on flat springs IOI attached to a bar I02 extending from the bottom of casing 98, bar I02 being equipped with adjusting screws I03 permitting the ends of the spring plates to be deflected to maintain them yieldingly in the uppermost position wherein it Will coact most efficiently to guide the particular size of stem butts.
  • the rolls are driven at progressively increasing speeds so that the stem butts are successively accelerated and thus separated as they pass through the stem way.
  • other means may be employed for driving the rolls, in the particular construction selected for exemplification of the same they derive their motion from a gear IIO mounted on a jack shaft III (Figs. 1, 11, 12 and 13) suitably mounted in the casing 98.
  • the gear H0 is in mesh with a gear I I2 mounted on a shaft I I3 also carrying a sprocket II4 over which a chain II5 runs.
  • the endless chain I I5 is led around sprockets carried by each of the shafts 94, the sprockets successively decreasing in diameter whereby the speeds of the shafts 94 are progressively increased from right to left. In this manner the rolls 90 carried by said shafts separate the stem butts as they pass through the stem way.
  • the chain H5 is also led around an idler sprocket mounted on shaft H6.
  • the jack shaft III is also provided with a sprocket II1 (Figs. 1 and 11) which drives a chain I I8 running over a sprocket I I9 attached to a shaft I20.
  • Shaft I20 is also provided with a pinion I2I in mesh with a gear I22 mounted on shaft I23 supported in the casing 98.
  • the shafts I20 and I23 (Fig. 1) carry a sprocket I24 and I25, respectively, which drive chains I26 and I21 running over sprockets I28 and I29 which are mounted on shafts I30 and I3I carried by a bracket I32 fastened to the frame of the machine.
  • the inner ends of shafts I30 and I3I are equipped with sprockets I33 adn I34, respectively, (Fig.1) which drive the upper and lower chains H and 12 (Fig. 9).
  • a belt I35 is driven by a pulley I36 fixed on the upper shaft 94, of the last set of rolls 90 and runs over an idler pulley I31 attached to a shaft I38, and around a portion of the lower roll 94 of this set.
  • Each stem butt is thereby carried downwardly by the belt I 35 against a control finger I39 carried by a pivot shaft I40 which also carries a contact maker I4I normally held by springs I44 in position to depress a contact I42 of a switch I43 and close the circuit through the same until tripped by the en-' gagement of a stem butt with the arm I39 to break said circuit.
  • the arm is returned to its original position by the spring I44 after the stem butt has passed beyond it, the continued descent of the stem butt finally causing it to trip a second control finger I45 dipsosed between the sheave I31 and the lower roll 90.
  • This latter finger is carried on the free end of a pivoted arm I46 which also carries a block I41 provided with a rod I48 pivoted thereon and projecting through an aperture of the casing 98 to engage a contact I49 of a switch I50.
  • a spring I5I tends to nor mally hold the rod I48 in engagement with the contact I49 and thereby close the circuit through the switch I50.
  • Member I62 is splined on the end of shaft III, and its hub I61 is provided with an annular cam track I68 engaging a roller I69 carried by the clutch throw-out lever I10 which is fulcrumed on a stud I1I carried by a bracket I12.
  • the other end of lever I16 is connected by a link I13 to the solenoid core I6I. It is readily seen that whenever the core is pulled inwardly the lever I10 swings about its fulcrum HI and thereby disengages the clutch members I62I63.
  • a compression spring I14 seated against a collar on the end of shaft III tends to normally hold the member I62 in engagement with member I63.
  • the belt 62 also stops, but the wheel 3
  • the movement of the wheel 3i and the star wheel 30 and the feed belts II and I2 is thus halted until the chains 1
  • a bevel gear I15 fixed on a shaft I16 is driven from the motor I11 and meshes with a bevel gear I18 fastened on one end of a shaft I19.
  • the shaft I19 carries a sprocket I (Figs. 1 and 14) driving a chain I8I running over a sprocket I82 fixed on shaft I83.
  • a crank disk I84 fastened to the opposite end of shaft I 83 is provided with a crank-pin I85 supporting a rod I86 connected to a rocker-arm I81 which is clamped to a bushing I81a.
  • Arm I31 is equipped with a pawl I89 arranged to engage a ratchet wheel I90 fastened on sleeve I81b and in this manner impart intermittent motion to the sleeve I81b.
  • a leaf spring I9I (Fig. 17) fastened to arm I81 maintains the pawl I89 in engagement with the ratchet wheel I90.
  • a sprocket I92 carried by sleeve I81b drives a chain I93 running over a sprocket I94 (Figs. 1 and 14) mounted on a shaft I95 which is supportedin a bearing of a bracket I96 (Fig. 14).
  • Shaft I95 is provided with a bevel gear 200 in mesh with a bevel gear 20I which in turn drives a bevel gear 202 on a stub shaft 203.
  • a spur gear 204 also carried by shaft 203 drives a spur gear 205 fast on one end of a sleeve 206 revolubly mounted in the bracket I96, and on the other end of the sleeve is fastened the gripper wheel 201.
  • a stud 208 fitting loosely within the sleeve 206 is equipped with an arm 209 provided with a pin 2I0 which is periodically engaged by mechanism hereinafter described, to open and close the jaws of the gripper wheel 201.
  • the head 2II of stud v208 (Fig.
  • the pin 2I0 which controls the opening and closing of jaws 2I9, is operated by a kicker arm 222 which is actuated by two cams as will be presently described.
  • One cam raises the arm 222 to a level where it will encounter and obstruct the movement of the pin 2 I and stud 208, wherefore the pin 2 I2 will displace the member 2I4 to the right.
  • the links 2I1 force the open jaws 2I9 past their dead center position and allow the springs 223 connecting one set of links 2I1 to close the corresponding pair of jaws.
  • the displacement of member 2I4 also causes the other set of links 2 I 1 to open the other pair of jaws which were formerly closed.
  • the second cam is provided to oscillate the kicker arm 222 in and out of the path of travel of pin 2I0.
  • the gripper wheel 201 is driven intermittently and completes one-half revolution in each cycle and in so turning the gripped stem butt is carried from the belt I35 and its opposed roll 90 to the turret H (Fig. 1).
  • the rotation of the gripper turret also carries the pin 2I one hundred andeighty degrees to a position wherein the arm 222 will be in position to engage the pin 2I0 and open the jaws 2I9 delivering a stem butt to the turret H and also close the jaws 2I9 receiving the next stem butt from between the belt I35 and its opposed roll 90.
  • arm 222 The oscillating motion of arm 222 is derived from a cam. 230' on shaft I83 engaging a cam roller 23I carried by a cam lever 232 fulcrumed on a shaft 222 (Fig. 15) which also carries an arm 234 adapted to engage the lower end of a vertical rod 235 on which is fastened the kicker arm 222.
  • a compression spring 236 on theupper fend of'rod 235 bears against the arm 222 and thereby holds the cam roller 23I in contact with cam 230.
  • the rod 235 is slidably mounted in lugs 231 and 236 of the bracket I96 and the spring 236 is seated against the lug 231.
  • Shaft I83 carries a pinion 239 meshing with and driving a gear 240 mounted on shaft 24I.
  • This shaft also carries a cam 242 engaging a cam roller 243 which is carried by a bell-crank 244 pivoted on shaft 233.
  • a rod-245 equipped at each end with balland-socket joints connects bell-crank 244 to an arm 246 fastened on rod 235a.
  • cam 242 imparts oscillating motion to the kicker arm 222 whereby the latter is swung in or out of the path of pin 2 I0.
  • a spring 241 attached to arm 246 has its other end anchored to a post (not shown) on the casing 248, said spring holding the cam roller 243 in contact with cam 242.
  • the large turret H, Fig. 1, is provided with circular face plates 250 and 25I (Fig. 17) which are fastened to sleeve I81b, and in the space between them are supported the jaws and their operating members.
  • the set of grippers 252 then at station I picks up the stem butt delivered by the gripper wheel 201, jaws 252 closing on the stem butt shortly before the gripper jaws 2I9 of wheel 201 are opened, thereby preventing the leaves from dropping.
  • the jaws 252 are pivoted on pins 253 passing through plates 259 and 25!, and are connected by links 255 to slidably mounted actuator blocks 256.
  • Blocks 256 slide against the faces of guides 251 attached to plate 25I, and their movement is derived from cam-actuated arms 258 which are adapted to engage in a recess 259 of their respective blocks 256.
  • Arms 258 are pivoted on studs 260 of plate 25I and provided with cam rollers 26I engaging a cam piece 262 clamped on bushing I81a (Figs. 17 and 19) which, as mentioned above, is loosely mounted on the sleeve I81b.
  • Arm 258 at its upper end, is provided with a recess wherein is seated a spring 263 which bears against the member 256 and tends to push the same outward and thereby close the gripper jaws 252.
  • each arm 258 is also pivotally mounted a latch 264 engaging a bar 265 fastened to face plate 25!, as shown, to hold the jaws at station I in their closed or gripping position.
  • the jaws 252 travel clockwise and retain their hold on the stem butts until staiton IV is reached where the jaws are opened and the stem butts are seized by the grippers J (Fig. 2) which carry the leaves through the stemming machine.
  • the rod I86 (Fig. 17), which is actuated by crank I84, imparts motion to the arm I61 and the pawl mounted thereon advances the ratchet wheel and turret one-quarter revolution at a time.
  • the cam piece 262 also travels along with arm I81, and on the return 'motion'of the arm and cam the latter engages the cam roller 26I and closes the gripper jaws 252 which have just moved from station IV to station I. Thereupon the turret is locked in position by two spring pawls 210 and 21I which drop into engagement with adjacent teeth 212 of the ratchet wheel I90 (Fig. 18).
  • jaws 252 at station IV are opened by means of a cam actuated arm 213 which engages a knock-out pin 214 carried by latch 264 and releases the latch from member 265, permitting a spring 215 to pull arm 258 and thereby move member 256 inwardly to open the jaws 252.
  • the separation of jaws 252 is timed to coincide with the closing of jaws J of the continuously running conveyor chain 216 (Fig. 2) of the stemming machine.
  • Arm 216 derives its motion from a cam 280 fast on a shaft 28I (Fig. 2) of the stemming machine bearing against a cam roller 282 on the cam lever 283 which is fulcrumed on a shaft 284.
  • a rod 285 connects the lever 283 to an arm 286 pivotally mounted on a shaft 28! which is suitably supported by the frame of the stemming machine.
  • a lug 288 of arm 286 engages and actuates a rod 28!) carried by the pivotally mounted arm 213, whereby the arm 213 is swung into the path of the pin 214 to cause the opening of the jaws 252.
  • the gripper jaws J of the conveyor chains 216 seize and remove the stems from the turret H, and carry them through suction chambers 29!) wherein they are straightened out and cleaned.
  • the straightened leaves are forwarded on the bottom loops of suction belts 29d and are then dropped upon belts 292 running in the opposite direction, a valve, not shown, in suction pipe 293 periodically shutting off the suction in chambers 294 at the proper moment.
  • the belts 292 together with companion belts 295 guide the leaves into the stemming mechanism 296 which removes the stems and permits the stemmed leaves to be carried away, tip first, by an endless delivery belt 291 running in the forward direction.
  • the chain 216 and belts 29L 292, 295 and 29'! are synchronously driven by the motor I'll, as disclosed in the United States Patent No. 1,916,018 of R. E. Rundell.
  • mechanism for continuously separating tobacco leaves from a bunch and advancing them toward said machine, means operating in synchronism with said machine for transferring a leaf at regular intervals from said mechanism into the range of action of said machine, and a device for stopping said mechanism only Whenever there is a succession of leaves at the delivery end of the same with the spacing requisite for delivery during successive cycles into the range of action of said means and until the foremost leaf is removed thereby.
  • top rolls are sufiiciently offset relative to their respective bottom rolls to coact with the bottom roll of the next pair in further advancing the stem butts, and yielding members having opposed faces defining the desired path of the stem butts through said rolls.

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US117322A 1936-12-23 1936-12-23 Tobacco leaf feed Expired - Lifetime US2159404A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE422334D BE422334A (enrdf_load_stackoverflow) 1936-12-23
US117322A US2159404A (en) 1936-12-23 1936-12-23 Tobacco leaf feed
GB15177/37A GB496719A (en) 1936-12-23 1937-06-01 Improvements in and relating to mechanism for feeding tobacco leaves to leaf stemming machine
FR823214D FR823214A (fr) 1936-12-23 1937-06-17 Mécanisme perfectionné pour amener des feuilles de tabac à une machine à écôter les feuilles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US117322A US2159404A (en) 1936-12-23 1936-12-23 Tobacco leaf feed

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Publication Number Publication Date
US2159404A true US2159404A (en) 1939-05-23

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Application Number Title Priority Date Filing Date
US117322A Expired - Lifetime US2159404A (en) 1936-12-23 1936-12-23 Tobacco leaf feed

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US (1) US2159404A (enrdf_load_stackoverflow)
BE (1) BE422334A (enrdf_load_stackoverflow)
FR (1) FR823214A (enrdf_load_stackoverflow)
GB (1) GB496719A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815029A (en) * 1954-04-14 1957-12-03 Zigarettenfabrik Haus Neuerbur Method and means for tearing out filters from defective filter cigarettes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815029A (en) * 1954-04-14 1957-12-03 Zigarettenfabrik Haus Neuerbur Method and means for tearing out filters from defective filter cigarettes

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Publication number Publication date
FR823214A (fr) 1938-01-17
GB496719A (en) 1938-12-01
BE422334A (enrdf_load_stackoverflow)

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