US3060775A

US3060775A - Shuttle-type dispenser of ribbon segments

Info

Publication number: US3060775A
Application number: US303210A
Authority: US
Inventors: John A Dreher
Original assignee: General Cigar Co Inc
Current assignee: General Cigar Co Inc
Priority date: 1952-08-08
Filing date: 1952-08-08
Publication date: 1962-10-30
Anticipated expiration: 1979-10-30

Description

Oct. 30, 1962 J. A. DRI-:HER

SHUTTLE-TYPE DISPENSER OF RIBBON SEGMENTS 5 sheets-sheet 1 Filed Aug. 8, 1952 Oct. 30, 1962 J. A.' DREI-IER 3,060,775

I SHUTTLE-TYPE DISPENSER OF RIBBON SEGMENTS Filed Aug. 8. 1952 5 Sheets-Sheet 2 IN V EN TOR.

Jaim A. ZM/lef Oct. 30, 1962 J. A. DRI-:HER

SHUTTLE-TYPE DISPENSER OF RIBBON SEGMENTS 5 Sheets-Sheet 3 Filed Aug. 8, 1952 NN Q.

Oct. 30, 1962 J. A. DREHER SHUTTLE-TYPE DISPENSER oF RIBBON sEGMENTs 5 Sheets-Sheet 4 Filed Aug. 8, 1952 E '4% 5 L IL 4, .S wa .R WQ n@ W x.

Oct. 30, 1962 J. A. DREHER SHUTTLE-TYPE DISPENSER oF RIBBoNsEGn/LENTS 5 Sheets-Sheet 5 Filed Aug. 8. 1952 ll Il l l ll H 3,060,775 SHUTTLE-TYPE DISPENSER F RIBBON SEGMENTS John A. Dreher, Trucksvilie, Pa., assignor to G eneral Cigar Co., Inc., New York, N.Y., a corporation of New York Filed Aug. 8, 1952, Ser. No. 303,21) 17 Claims. (Cl. 83-1tit) This invention relates to dispensing segments of a tenuous ribbon and more particularly to unwinding a roll of such ribbon and delivering equal lengths of the unwound ribbon to a desired work locus.

The problem of automatically taking oif a soft and tender sheet from a roll thereof and severing equal-sized segments from the unrolled sheet which are deposited in a smooth condition in a predetermined work area has rarely been encountered in commercial operations but now has become particularly important with the recent development of tobacco sheets Which, as disclosed in U.S. Patents 2,592,553 and 2,592,554 to W. G. Frankenburg and P. W. Garbo, are made by mixing dry-ground tobacco with a highly viscous aqueous solution of a binder to form a paste, spreading the paste in a thin layer and drying the layer to leave a coherent lm or tobacco sheet. The ribbon segments are desired in the manufacture of smoking products; for instance, such pieces of tobacco sheet may be used as tobacco bunch binders in the manufacture of cigars. Prior mechanisms for the purposes contemplated herein have failed to function successfully with a tenuous ribbon because these mechanisms depend on an appreciable tensile strength in the ribbon for proper operation.

In accordance with this invention, segments of a weak and limp ribbon are dispensed from a roll thereof in a smooth condition in a predetermined work area by the steps of gently pulling out the starting or leading end of the ribbon away from the ribbon roll and over the desired work area while the roll is rotatably held in a fixed position, severing from the pulled out portion of the ribbon the desired segment While the pulled out portion is held in a smooth condition in the predetermined work area and repeating the pulling and severing steps using the new leading end of the ribbon which is `formed with each severing step. In short, the invention contemplates means for rotatably holding the roll of ribbon in a iixed position, shuttle means adapted to move reciprocatingly away from and toward the fixed position of the ribbon roll, roll means mounted on the shuttle means operative to hold the leading end of the ribbon without rotating while the shuttie means is moving in one of its two reciprocating directions and to rotate and thereby pay out the ribbon while the shuttle means is moving in the other of its two reciprocating directions, and cutting means operative to sever a desired ribbon segment from the paid out ribbon at the end of each movement of the shuttle means during which the roll means rotates.

For a better understanding of the invention, reference is now made to the accompanying drawings which illustrate two preferred embodiments with like reference characters indicating the same or like parts and of which:

FIGURE l is an elevation of apparatus lforming one embodiment, hereinafter designated as Vthe vacuum roll machine;

FIGURE 2 is essentially a right end view ofthe vacuum roll machine;

FIGURE 3 is a sectional View taken along the line 3-3 of FIGURE l;

FIGURE 4 is an enlarged partial elevation like FIG- URE 1 but shows the vacuum roll of the machine in section as indicated by the line 4 4 of FIGURE 2;

bj' Patented Oct. 30, 1962 FIGURE 5 is a `sectional plan of the vacuum roll machine taken along the line 5 5 of FIGURE 1;

FIGURE 6 is a diagrammatic elevation showing the principal movements of the vacuum roll machine during operation; t

FIGURE 7 is an elevation of apparatus forming another embodiment of -the invention, hereinafter designated as the contact roll machine;

FIGURE 8 is essentially a plan of the contact roll machine;

FIGURE 9 is a sectional view taken along the line 9 9 of FIGURE 7;

FIGURE l0 is a partial sectional view taken along the line itl-I0 of FIGURE 7; and

FIGURE 1l is another partial sectional view taken along the line 11-11 of FIGURE 9.

The vacuum roll machine comprises a supporting frame A having two

horizontal bars

10, 11 and two

vertical bars

12, 13 which are screwed or otherwise rigidly fastened together to form a rectangular frame. As shown in FIGURE l, supporting `frame A may be mounted on

post pedestals

14, 15 to which it is fastened by bolt clamps I6, 17. Upper bar l1 has a bracket 18 in which an axle rod 19 is rigidly held by bolt clamp 2li. Axle 19 carries a rotatable rsleeve 21 which is provided with two

arms

22, 23. At the end of arm 22 is mounted a freely rotatable idler roll 24, while arm 2'3 carries a counterweight 25 which may be set closer to or farther from sleeve 21 as desired. A rotatable bearing sleeve 19a surrounds axle 19 and supports two

spool ends

26, 27 between which a roll 28 ofthe tenuous ribbon is inserted. The inner

tapered faces

26a, 27a of spool ends 26, 27, are pressed into frictional engagement with the ends of hollow core 29 on which the ribbon roll 2SV is wound. Spool end 27 is pressed onto one end of bearing sleeve 19a and spool end 26 is adjustably fastened by a set screw onto the other end of sleeve 19a. Thus, ribbon roll 28 rotates as a unit with

spool ends

26, 27 and sleeve 19a about axle 19 and is kept on axle 19 by collar 30 which is adjustably clamped on axle 19. A sensitive brake to Vcontrol the rotation of roll 23 is provided by rigid bracket 32 extending from frame A of the machine and holding one end of a leather strip or brake band 33 which is looped around a circumferential groove 31 on spool end 27 and which has its other end attached to a light coil spring 34 suspended from peg 3S on arm 22. As shown in FIGURE l, ribbon R from roll 28 loops around idler roll 24 and extends downwardly to lower portions of the machine. When a downward pull is exerted on the ribbon, idler 24 moves clockwise since it is attached to rotatable sleeve 21 by arm 22; such clockwise movement of idler 24 causes slackening of the loop comprising band 33 and spring 34 with the result that ribbon roll 28 with spool ends 26, 27' and bearing sleeve 19a is free to rotate on axle 19 and the ribbon is unwound from roll 28 as it is pulled over idler 24 toward the lower portion of the machine. When the pull on the ribbon is stopped, idler 24 moves counterclockwise to its original position under the influence of counterweight 25 which has also been displaced clockwise while the ribbon was being pulled. Obviously, with the return of idler 24 and arm 22 to the original position, brake band 33 again engages groove 31 of spool end 27 and keeps the ribbon roll '28 from unraveling itself through momentum.

A movable frame 'B having two

horizontal bars

36, 37 and two

vertical bars

38, 39 which are rigidly yfastened together in the form of va rectangle is provided with a central post 40 which is rigidly mounted to the movable frame 'at clamp iblock 41 on bar 36 and at clamp bar 42 on bar 37. The Iopposite ends of post 40 pass slidably through bearing

blocks

43, 44 mounted on

bars

10, 11,

respectively, of the supportingV frame. Ihe tab ends of

bars

36, 37 project behind

bars

12, 13, and are in sliding contact Iwith the Vback faces of

bars

12, 13. A clamp i block 45 is fixed on post 40 and llink bar 46 pivotally periphery of cam Ydisk 50. A vdriven shaft 51,passes.

through bar 13 and imparts rotation tocam disk 5i) mounted thereon with, the result that when roller 49 1s riding on the smaller radius arc yof cam disk 50 (as shown inV FIGURE l) movable frame B with central post 40 drops to its lowest position, but when roller 49 is ridmg on the larger radius arc yof cam `disk 50'movable frame B is raised toits highest position, the vertical reciprocating motion of movable frame B being transmitted from cam disk 50 through bell crank 47 and link bar 46 which is pivotally :attached to central post 40 of the movable frame. Y

A rod 52 is held in spaced, parallel relation to the face of bar 36 by clamp blocks 53, 54 mounted 'on

bars

38, 39, respectively. Another rod 55 4is similarly Vheld in spaced, parallelV relation to bar 37 by clamp .

blocks

56, 57 mounted on

bars

38, 39, respectively. Rod 52 passes through slide block 58 and rod 55 passes through slide block 59,

slide blocks

58, 59 being connected to one another by plate 40 to form a slidable frame C.

A link bar 61 is pivotally attached at one of its ends to slide block 58 of slidable frame C and at its other end to cam arm 62. The lowermost'end of cam 'arm 62 is pivotallyV pegged to bar 13 by bolt 63 while the corner of -angulated cam arm 62 is provided with a roller 64 which rides in cam track 65 of internal face cam 66 that Yis mounted on driven shaft 51. To steady the operation of cam 66, a support bar 67 is held in spaced, parallel relation to bar 13 by

bolts

48, 63 and is provided with bearing `68 to receive the free end of driven shaft 51. Thus, when driven shaft 51 rotates, not only do cam disk 50 and bell crank 47 cause movable frame B to oscillate vertically but also cam 66 and cam arm 62 cause slidable frame CV to oscillate horizontally. llt is clear that slidable frame C with its associated elements provides `shuttle means adapted for reciprocating motion relative to supporting frame A .A gear rack Y69 is horizontally fastened to

bars

38, 39 of movable frame B while a gear wheel 70 which meshes with gear` rack '69 is rotatably mounted on laxle bolt 71 extending from the yface of plate 60 of slidableV -frame C.

Axle bolt 71 also supports another gear wheel 72 which has Ian integral ratchet 73. A small pawl 74 mounted on the face of gear wheel 70 locks with the single tooth of ratchet 73 when slid-able frame C moves from right to lleft as viewed in `FIGURE l and thus cases gear wheel 72 to rotate clockwise together with gear Iwheel 70. A large pawl 75 is suspended from plate 60 Iandlock-s with the single tooth of'ratchet 73 whenl slidable frame C slides from left to right to stop any rotation of gear wheel72 while gear wheel 70 turns counterclockwise fand pawl 74 slips over the surface of ratchet 73. Pawl 75 slips over the surface of ratchet 73 when slidable frame `C is sliding from right to left and

gear wheels

70, 72 are both rotating clockwise, being locked together by pawl 74 and ratchet 73.

Slide block 58 of slidable frame C has a dependent tab portion 76 with a recess to receive the plugged end of hollow shaft 77. lHollow shaft 77 is held in a xed position in tab 76 by set screw 78; As shown in FIGURE V4, shaftr77 has two longitudinal ribs 79, 80 and a slit `aperture 81. A cylindrical casing 82 is rotatably mounted parts rotation to cylindricalcasing 82. As aforesaid, gear Wheel 72 can rotate only clockwise and, therefore, meshing gear 87 causes cylindrical casing 82 to rotate on fixed, hollow shaft 77 only counterclockwise. The free, o pen end of shaft 77 is Yused for attaching thereto Ia flexible hose (not shown) connected to a vacuum pump. Thus, when a vacuum is drawn in hollow Ishaft 77, Ka vacuum is also drawn in that portion of the annular space between shaft 77 and casing 82 which lies to the left of ribs 79, 80 @FIGURE 4) since that portion of the annular space communicates with Vthe core of hollow shaft 77 through aperture 81. Since cylindrical casing 82 is provided with a multiplicity of perforations 88, air will be sucked 1n through each perforation 88 while it is rotatively traveling counterclockwise from rib 80 tok rib 79 over the vacuumized portion of the annular space between shaft 77 and casing 82. 'In the continued rotative travel of each perfo` ration 88 from the point of radial alignment with -rib 79 to the point of radial alignment with rib 80, air is not sucked in through such perforation 88 because the portion of the annular space between shaft 77 and casing 82 which lies to the right of ribs 79, 80 (FIGURE 4) does not communicate Iwith the vacuumized core of hollow shaft .77.

- idler roll v89 Iwhich rotates freely on axle V90 mounted On slide block 58 of slidable Iframe CV and finally ribbon 'R Y is looped over rotatable casing 82 of the -vacuum roll.

With an operating vacuum pump connected by exible tubing Iattached to the open end of hollow shaft 77, air is Ysucked in through the vacuumized perforations 88 of casing `82 which lie to the left of ribs 79, 80 on shaft 77 (FIGURE 4) with the result that the portion of ribbon R which loops over casingV 82 and covers the vacuumized perforations 88 adheres to the outer sunface of casing 82. Since the invention not only dispenses a soft and tender ribbon from a roll thereof as a smooth at sheet but also cuts the ribbon into a plurality of sheets of equal length, a fixed knife blade 91 is so positioned relative to casing 82 that the knife edge of blade v91 contacts the outer surface of casing 82 Ywhen slidable frame C which carries the vacuum Vroll is at the end of its sliding travel to the left and simultaneously when movable frame B which carries slidable frame C is at the end of its downward movement. Y Y Y With ribbon R looped over casing 82 so that the leading end of ribbon R is contiguous with knife blade 91 and with vacuum holding the looped portion of ribbon R to the outer surface of casing 82, the machine is ready for operation. Referring to FIGURE 1, when power is applied to shaft 51 to rotate it clockwise, cam disk 50 and bell crank 47 raise movable frame By and simultaneously internal face cam 66 and cam arm 62 pull slidable frame C to the right. While frame B is held in the raised position and frame C is being pulled to the right, gear wheel 70 is being rotated counterclockwise by gear rackV 69 but Vduring such counterclock-wise motion of on shaft 77 with'the ends 83, 84 of casing 82V bearing l against shoulders` 85, Y86 on shaft 77. Casing end'84 is provided with gear teeth 87 which mesh with the teeth of gear wheel 72 so that rotation of gear wheel 72 4imgear teeth 87 meshing with those of wheel 72 do not rotate and pawl 75 locks into the single tooth of ratchet 73. At the end of substantiallyrone-half turn' of

cams

50, 66, yframe B is dropped to its lowered position and the movement of frame C toward the right is terminated. During the second half turn of

cams

50, 66, Vframe B remains in its lowered position while frame C is pushed to the left by cam arm 62 and link bar 61. While frame C is moving toward the left, gear rack 69 is rotating gear wheel 70 clockwise -with the result that pawl 74 on wheel 70 locks into the single tooth of ratchet 73, causing gear wheel'72 to turnV clockwise and casing 82 to turn counterclockwise. When casing 82 is rotated Ycounterclockwise, the leading end of ribbon Reis moved from the point of radial alignment with rib 79 toward the right but to the right of rib 79 casing 82 is not vacuumized and, therefore,

ribbon R falls or peels off casing 82. At the end of the second half turn of shaft 51, casing 82 has contacted knife blade 91, thus severing ribbon R along the line of contact, and frame C has terminated its sliding movement to the left. From this point on, the cyclic operation repeats itself, starting with the raising of frame B and the pulling of frame C toward the right as already described. As shown in FIGURE 4, it is advisable to omit perforations 88 in the portion of casing 82 which rides over knife blade 91 to avoid the possibility of blade 91 pushing parts of ribbon R into theV perforations so that ribbon R tends to stick to casing 82, thereby impeding the desired peeling off of ribbon R when its leading end is moved to the right of rib 79.

The contact roll embodiment of the invention shown in FIGURES 7 to ll, inclusive, comprises a supporting frame A having two

longitudinal bars

101, 102 and two end bars 103, -104 which are rigidly fastened together to form a rectangular frame. Supporting frame A ymay be mounted on post pedestals 14, to which it is fastened by bolt clamps 16, 17.

Longitudinal bars

101, 102 support a bearing bracket 18 and its associated members which have been described in connection with the vacuum roll machine. Extending down from

end bars

103, 104 are

vertical bars

105, 106, respectively.

Two

parallel slide rods

107, 108 at a level beneath that of

longitudinal bars

101, 102, have their ends fastened to end

bars

103, 104. Mounted on

rods

107, 108 is a slidable frame C twhich comprises two parallel slide blocks 109, 110, provided with apertures through which slide

rods

107, 108 pass. As shown in FIGURES 9 and 10, the apertures in

blocks

109, 110 to receive square rod 107 are slots while the apertures to receive round rod 108 are circular holes.

Blocks

109, 110 are held together in spaced relation to one another by horizontal plate 111. Four

vertical bars

112, 113, 114, 1'15 depend from the four corners of plate 111. Bar '114 is directly behind bar 112 in FIGURE 7 and therefore does not appear in the drawing. An idler roll 116 has its bearings in the lower ends of bars 112, 114 while the lower ends of bars 113, l115 provide bearings for contact rolls 117, 118. The ends of axle 123 of roll 118 extend through

bars

113, 115 and have

gear wheels

119, 120 mounted thereon. A ratchet 121 is keyed to axle 123 of contact roll 118 between bar 113 and gear wheel 119. A lock pawl 122 is mounted on the face of bar 113 to cooperate with ratchet 121 and prevent clockwise rotation (FIGURE 7) of ratchet 121, roll 118 and gear wheel 120, all of which are keyed to axle 123. Gear wheel 119 is rotatably mounted on axle 123 and held thereon by retainer screw 124. Pawl 125 is attached to the inner face of gear wheel 119 and operates to engage the teeth of ratchet 121 only when gear wheel 119 is turning counterclockwise (FIGURE 7). Thus, when gear wheel 119 rotates counterclockwise, pawl 125 locks into ratchet 121 and axle 123 and all other elements keyed thereto also rotate counterclockwise, but when gear wheel 119 rotates clockwise, pawl 125 slips over ratchet 121 and pawl 122 locks into ratchet 121 so that axle 123 and all other elements keyed thereto are without rotation. Lower Contact roll 117 is keyed to an axle 126 which passes through bearing blocks '127, 12S which tit in slots in the lower ends of

bars

113, 115, respectively, and are held in these slots by spring clips 129, 130. Axle 126 extends beyond bearing block 128 to supporta gear wheel 131 keyed thereto. The teeth of

gear Wheels

120, 131 mesh and since, as aforesaid, gear wheel 120 can only rotate counterclockwise (FIGURE 7) it follows that gear wheel 131, axle 126 land roll 117 can only rotate clockwise.

A horizontal bar 132 fastened to the lower ends of

vertical bars

105, 106 of supporting frame A carries a gear rack 133 which meshes with gear wheel 119. A driving arm 134 attached to slide block 110 of slidable yframe C projects beyond the side of supporting frame A (FIGURE 8) and may be connected to any reciprocating drive means (not shown) so that the entire slidable frame C suspended from

slide rods

107, 108 of supporting frame A may be moved back and forth along

rods

107, 108. When frame C moves to the right (FIGURE 7), gear wheel 119 turns clockwise but axle 123 and its associated elements are kept from rotating by pawl 122. However, when frame C moves to the left, gear wheel 119 turns counterclockwise and pawl engages ratchet 121 causing roll 113 and gear wheel 120 to rotate also counterclockwise and gear wheel 131 and roll 117 to rotate clockwise.

Both contact rolls 117, 118 have a plurality of circumferential grooves which ride over two sets of stationary wires held horizontally at the nip between rolls 117, 11S. The set of wires 135 which tit in the grooves of roll 117 are spot welded t-o bar 136 fastened to the lower ends of

vertical bars

113, 115, while the set of wires 137 which fit in the grooves of roll 11S are spot welded to bar 138 also fastened to

bars

113, 115.

A knife blade 139 is pivotally fastened to bar 113 of slidable frame C by spring-loaded bolt 140. Blade 139 moves down across t-he sharp edge of cutting bar 141 so that ribbon R is severed between these two

elements

139, 141. Cutting bar 141 is positioned on the discharge side of contact rolls 117, 11S so that ribbon R delivered by these rolls slides over bar 141 (FIGURE ll). A discharge apron 42 is fastened against the bottom of cutting bar 141 and serves to facilitate the laying down of ribbon R in a smooth condition on a work area as slidable frame C moves toward the left (FIGURE 7) and contact rolls 117, 11S rotate to pay out or dispense ribbon R. Blade 139 has a lever arm 143 which is held up by spring 144 against the lower edges of slanted bar 1145 attached to

vertical bars

105, 106 of supporting frame A. As frame C is moved to the right (FIGURE 7 arm 143 sliding along the lower end of bar 145 is thereby pushed downward with the result that blade 139 is raised and a springloaded latch 146 snaps over the top of lowered arm 143 to lock blade 139 in the raised position. When frame C moves toward the left (FIGURE 7), blade 139 remains raised until a stop 147 which is adjustably bolted to slide bar 107 trips latch 146 allowing blade 139 to snap down across the edge of cutting bar 141 because of the upward pull on arm 143 by spring 144.

In the operation of the contact roll embodiment of the invention, tenuous ribbon R from roll 28 is looped over idler roll 24, around idler roll 150 mounted on bar 103 of supporting frame A and under idler roll 116 of slidable frame C. The leading end of ribbon R is threaded between the two sets of wires 135, .137 and through the nip between contact rolls 117, 11S so that the leading end of ribbon R lies along the sharp edge of cutting bar 141 (FIGURE 11). Starting with slidable frame C at the end of its travel toward the right, the reciprocating drive means (not shown) acting on arm 134 pulls frame C toward the left (FIGURE 7) and during this movement knife blade 139 is held in the raised position by spring-loaded latch 146 while gear rack 133 acting on gear wheel .119 causes roll 118 to rotate counterclockwise and roll 117 clockwise with the result that ribbon R is discharged toward the right by contact rolls 117, 118 (FIGURE 7) as frame C travels toward the left. When frame C cornes to the end of its travel to the left, stop 147 trips latch 146 and knife blade 139 swings down across the lsharp edge of cutting bar 141 thereby severing ribbon R. Frame C then commences its return travel to the right with the result that gear wheel 119 rotates clockwise on gear rack 133 while contact rolls 117, 118 hold ribbon R therebetween without rotating. During the travel of frame C toward the right, ribbon R is being pulled from roll 28 over idler rolls 24, 150, 116 and slanted bar 145 on frame A is lowering lever arm 143 thereby raising blade 139. At the end of the movement of frame C to the right, latch 146 snaps over arm 143 to hold blade 139 in the raised position and the unrolling of ribbon roll 28 stops. Frame C then repeats its movement to the left as already described.

The work area in which each ribbon segment s deposited in'a smooth, wrinkle-free condition in accordance withV this invention may comprise various mechanisms for the further handling or utilization of theY ribbon segments.

Y For instance, referring to the contact roll machine, a conveyor belt may be positioned under slidable frame C to receive each ribbon segment as it is dispensed by the machine and to convey it in a direction at right angles to the movement of the slidable frame C. The operation of such a conveyor belt would be controlled through known mechanical or electrical devices that in response to movements of the contact roll machine would set the conveyor in motion while slidable frame C is traveling toward the right (FIGURE 7) and wouldY stop the conveyor while frame C is traveling toward the left and is depositing another ribbon segment on the conveyor. Similarly, part of a rotatable table or turret may lie under frame C to receive each dispensed .ribbon segment; after the deposition of each ribbon segment, the turret revolves and car- Y Yin cigar-making machines.

n It is frequently advisable that the work area on which the ribbon segments are deposited pursuant to this invention have a perforated surface communicating with a subjacent suction box. In this way, the ribbon issuing from the dispenser of this invention will adhere to the perforated surface immediately upon contacting the same and will be held there in a smooth, wrinkle-free condition until the deposited ribbon segment is utilized or transferred to a new work locus. Obviously, when'the ribbon segment is about to be utilized or removed from the perforated surface, adherence of the ribbon segment thereto will be overcome by temporarily breaking the suction in the subjacent box.

i Various modifications of the invention will Vbe apparent from the foregoing disclosure; VFor instance, bracketV 18 which holdsY the spool ,of ribbon does not needY to be mounted on supporting frame A and may have an independent pedestal.` This is also true of stop'147 Vwhich is illustrated in FIGURE 7 as being attached to slide bar 107. Also, the vacuum roll machinemay be altered to maintain said ribbon in contact with said roll means, and cutting means operative to out a ribbon segment from said ribbon at the end of the movement of said shuttle means in said one of the two directions of said reciprocating motion during which said 'roll means rotates.

2. The machine of claim 1 wherein the roll means has a cylindrical shell provided with'a plurality of apertures in its surface and the holding means comprises a compartmentalizing element in said cylindrical shell providing Huid communication between a portion of said apertures and a vacuum source.

3. The machine of claim l wherein the holding means comprises a roll disposed adjacent and parallel to the roll means in order to hold the ribbon in the nip between said roll and said roll means. Y Y,

4. A machine for dispensing ribbon segments of equal length from a roll of a tenuous ribbon, which comprises spoolV means to hold said roll of tenuous ribbon, a iixed, supporting frame, shuttle means mounted on said supporting frame and adapted for reciprocating motion relative to said supporting frame with a linear amplitude substantially the same as the desired equal length of said ribbon segments, roll means rotatably mounted on said shuttle means, a gear mechanism associated with said roll means translating the reciprocating motion of said shuttle means into periodic, unidirectional rotation of said rol-l means, holding means attached to said shuttle means to maintain said ribbon in contact with said roll means, and cutting means operative to cut a ribbon segment from said ribbon at the end of each periodic unidirectional rotation of said roll means. v K

5. The machine of claim 4 wherein the gear mechanism comprises a gear rack associated with said supporting frame and a gear wheel mounted on said shuttle means in engagement with said gear rack.

6. 'Ihe machine of claim 5 wherein the roll means has aV cylindrical shell provided with a plurality of apertures in its surface and the holding means comprises a compartmentalizing element in said cylindrical shell providing uid communication betweenY a portion of said aperturesY and a vacuum source.

7. A machine for dispensing ribbon segments from a Vroll Vof a tenuous ribbon, which comprises a stationary bracket with rotatable spool means for holding said roll of ribbon, shuttlemeans which reciprocates in directions away from and toward said bracket, roll means carried by saidV shuttle means adapted to hold vthe leading end Y of said ribbon without rotating while saidrshuttle means omit the vertical movements obtained through the incorporation of movable frame B and its associated elements like cam lever'47; in such case, the fixed knife blade 91 would be replaced by one which moves up and strikes the underside of casing 82 when frame C completes its movement to the left (FIGURE l) and then drops away from casing 82 when frame C starts its movement to the right.

In view of the many possible modiiications and variations of the invention which will occur to those skilled in the art without departing from the spirit or scope of the invention, only such limitations should be imposed as are indicated by the appended claims. Y

What is claimed is:

1. A machine for dispensing a continuous, tenuous ribbon in the form of ribbon segments of predeterminedV length, which Vcomprises a fixed, supporting frame,shuttle means mounted on said supporting frame and adapted for reciprocating motion relative to said supporting frame with a linear amplitude substantially equal to said predeterminedV length, roll means attached to said shuttle means andfrotatably driven by the movement of said shuttle means in one of the two directions of said reciprocating motion, holdingY means attached to said shuttle means lto moves .in one of itsy two reciprocating directions, said roll means being rotatably driven and thereby Vpaying out said ribbon by the movement of said shuttle means in the Vot-her of its two reciprocating directions, and cutting means responsive to the reciprocation of said shuttle means which cuts a ribbon segment from said ribbon at the end of each movement of said shuttle means during which said roll means rotates. Y

8. The machine of claim 7 wherein the roll means comprises a pair of geared contact rolls Vthrough the nip of which contact rolls said ribbon passes. Y

comprises a hollow cylindrical casing with a perforated surface, a tub'e'concentrically disposed in said casing and providing bearings for the rotation of said casing about said tube, .partitioning means in the annular space between said casing and said tube to divide said annular space, and an aperture in Said tube providing uid communication between a division of said annular space and the interior of said tube.

K l0. The machine of claim 9 wherein the cutting means comprises a fixedY knife blade positioned to contact the surface of vsaid casing at the end of each movement of said shuttle means during which said rollmeans rotates.

1l. The machine of` claim 7 wherein said rotatable spool means is provided with a brake whichis released in response to a pulling action on said ribbon developed 9. The machine of claim 7 wherein the roll Vmeans by said shuttle means when said shuttle means moves in a direction away from said bracket.

12. The machine of claim 7 wherein the cutting means is mounted on said shuttle means and comprises a iixed cutting bar and a knife blade pivotally held in scissorslike relation to said cutting bar.

13. A machine for dispensing a continuous, tenuous ribbon in the form of ribbon segments of predetermined length, which comprises a fixed, supporting frame, shuttle means mounted on said supporting frame and adapted for reciprocating motion relative to said supporting frame with a linear amplitude substantially equal to said predetermined length, roll means attached to said shuttle means and rotatably driven -by the movement of said shuttle means in one of the two directions of said reciprocating motion, a hollow casing with a perforated surface to hold said ribbon when a vacuum is drawn in said hollow casing, said hollow casing being attached to said shuttle means for reciprocating motion therewith, and a cutting blade supported independently of said shuttle means and positioned to cut a ribbon segment from saidribbon toward the end of said movement of said shuttle means during which said roll means is rotatably driven.

14. In a cigar machine having a station for suctionally supporting a portion of tobacco sheet material to be wound on a smoking article, a source of tobacco sheet web material mounted adjacent said station, means movable to and fro across said station, said means having mounted thereon gripping elements to grip the leading edge of said web of sheet material and draw it across said station, means to release said gripping elements whereby said leading edge is released, and said means carrying said gripping elements may be moved backward, and cutting means mounted adjacent said gripping elements to sever a portion of said web during the return stroke of said movable means.

15. In a cigar machine having a rolling table, the combination with a source of continuous tobacco web, of gripping means movable from said source across said table to draw a portion of said web across said table, means to release said gripping means so that said gripping means may return toward `said source, and cutting means operatively mounted on said gripping means to sever said drawn portion of web from said continuous source.

16. In a cigar machine having a station adapted to receive a portion of tobacco sheet material, a support mounted to move to and fro across said station, a source of tobacco sheet material adjacent said station and said support, gripper means on said support to grip the leading edge of said material to draw it across said station, means to release said gripper means so that said leading edge is released and said support may be moved backward along said drawn portion of material, and cutting means on said support operative to sever said drawn portion of web during the return trip of said support.

17. In a cigar machine having a suctional rolling table, means for applying suction at predetermined time intervals to said rolling table, a source of sheeted tobacco web material adjacent said rolling table, a support movable across said rolling table, cooperating feed rollers mounted for rotation on said support, said feed rollers adapted to grip therebetween the leading edge of said web, said support then moving across said table to draw a portion of said web, said feed rollers then rotating and said support moving backward across said web at a rate of speed substantially equal to the peripheral speed of said rollers to deposit a leading portion of said web on said rolling table, and a knife mounted on said support adjacent the delivery end of said feed rollers and operative to sever said web when said support is returned to a predetermined position 4whereby a predetermined leading portion of web may be severed and deposited on said rolling table.

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