US3087687A - Machine for winding a web into rolls - Google Patents

Description

April 1963 K. E. L. GRETTVE 3,087,687

MACHINE FOR WINDING A WEB mo ROLLS Filed July 20, 1960 t 4 Sheets-Sheet l April 30, 1963 K. E. L. GRETTVE 3,

MACHINE FOR WINDING A WEB INTO ROLLS Filed July 20, 1960 4 Sheets-Sheet 2 INVENTOR April 30, 1963 K. E. L. GRETTVE 3,087,637

MACHINE FOR WINDING A WEB INTO ROLLS Filed July 20, 1960 4 Sheets-Sheet 3 F iq. 4

INVENTOR r 12 4 I v 6 Q 5 BY Mz Z aaz;

April 30, 1963 K. E. L. GRETTVE 3,087,687

MACHINE FOR WINDING A WEB INTO ROLLS Filed July 20, 1960 4 Sheets-Sheet 4 INVENTOR United States Patent MACHINE FOR WINDING A WEB INTO ROLLS Karl Einar Lage Grettve, Lilla Edet, Sweden, assignor to Lilla Edets Pappersbruks Aktiebolag, Lilla Edet,

Sweden, a corporation of Sweden Filed July 20, 1960, Ser. No. 44,215 Claims priority, application Sweden Aug. 1, 1959 7 Claims. (Cl. 242---56) This invention relates to a machine for winding a web from a large supply roll into smaller rolls, and is particularly concerned with winding machines which are provided with a drum serving to feed the web from the supply roll and with at least two winding stations situated one after the other in the direction of travel of the web along the periphery of the drum, each smaller roll being arranged to pass through the said winding stations, and the machine being further provided with means for cutting the web before the smaller roll leaves the second station.

In this kind of machine, the drum has hitherto been provided with an unbroken mantle surface and is driven continuously; A drawback in these known paper winding machines is that the roll being wound is moved from the first to the second station without being guided, which can result inter alia in the web at this transmission becoming wrinkled and the winding becoming unsatisfactory. Also, the tension in the web is varied during this transmission of the roll, which has a detrimental influence on the winding action.

The main aim of the present invention is to overcome the abovementioned drawbacks, auid according to the invention a machine for winding a web from a large supply roll into smaller rolls comprises a drum serving to feed the web from the supply roll, and at least two winding stations arranged one after the other in the direction of feeding and situated on the periphery of said drum, each roll being arranged to pass through the stations and the machine being provided with means for cutting the web before the smaller roll leaves the second winding station, in which the said feeding drum comprises a number of parallel cylinders carried on the periphery of the drum and being driven by common driving means in the same direction of rotation, and in which means are provided for driving the drum intermittently and about its longitudinal shaft a part of a revolution corresponding to the number of shafts and each one of the said winding stations comprising two adjacent cylinders of the drum.

referably, the first winding station comprises, in addition to the two drum cylinders, a freely-running load cylinder which is liftable in a way known per se, the load cylinder being situated in the space between the drum cylinders and a rotatably driven winding cylinder. The drum cylinders are at one end preferably provided with drive pulleys, and one or more endless belts run over these pulleys and are driven by the pulley of a motor. When the shaft of the drum is locked, the drum cylinders rotate with a speed which corresponds to the number of revolutions of the motor. When the drum is rotated with a certain speed in one direction of rotation or in the other relatively to the direction of rotation of the drum cylinders, the latter will be given a corresponding speed reduction or speed increase. This reduction or increase in speed is in such a relation to the feeding speed of the total drum that when the web is wound to a smaller roll between two of the drum cylinders, the tension of the web will not vary due to the fact that the drum shaft during the winding is turned forwards or backwards no matter if this is done quickly or slowly. Further, the movement of the roll from the first to the second winding station is guided in the space between said two drum cylinders and preferably also by guiding belts passing ice over said space. All these measures result in an extremely even winding, and the winding can also be performed considerably faster than with machines used hitherto. The construction of the machine is also simplified.

An example of a machine in accordance with the invention will now be described with reference to the accompanying partly diagrammatic drawings, in which:

FIGURE 1 is a vertical section through the winding machine;

FIGURE 2 is an end elevation during another phase of the winding;

'FIGURE 3 shows a section of a device belonging to the machine for feeding pasteboard cylinders, serving as cores, to the first winding station;

FIGURE 4 is a partly sectioned side elevation of one end of the cylinder drum;

FIGURE 5 is an end elevation of the drum with a device for turning the drum step by step; and

FIGURE 6 is a similar end elevation showing the drum turned forwards one step.

The machine shown in the drawings comprises a drum 3 journalled near the ends of a shaft 2 which at its ends is supported by the gables 1 of the machine. The mantle surface of the drum is not composed of a cylinder but comprises eight cylinders 4, 5, 6, 7, 8, 9, 10, and 11 having their shafts 12 supported at their ends in the gables 13 of the drum (only one gable is shown in FIG- URE 4). Alternatively, the shafts 12 are attached to the drum gables 13 and the cylinders are journalled on the shafts. Each drum cylinder 4-11 is provided with a grooved pulley 14 having five grooves, the cylinders 4-11 being driven by a number of endless Vabelts 16 running in the grooves 15. The belts 16 are driven by the pulley on the shaft of an electric motor 2.1a, the shaft of the motor having a drive pulley 16b thereon, the belt 16 being driven by the drive pulley in the manner shown at the bottom of FIG. 1.

The stand gables 1 are each provided with a post 17 carrying a device 18 for the feeding down of pasteboard cylinders 19 and a special device 24} for the orientation of the cylinders. The posts 17 also support an intermediate shaft 21, and around this shaft 21 there are arranged two turnable gables 2 2 comprising the supports for the shaft 23 of a winding cylinder 25 located in the first Winding station 24 of the machine. The gables 22 which with their supporting cylinders 26 rest on the drum gables 13 (or the stand 1) can be swung upwards by means of a lifting jack 27 and chains 29 or the like so as to be wound on the drum 28 of the jack 27. One end of the chains is attached to the end of the gables situated opposite the intermediate shaft 21.

The first winding station 24 includes a load cylinder 30 in addition to the two adjacent cylinders '5 and 6 of the cylinder drum 3 and the winding cylinder 25. The shaft 31 of the cylinder 30 has its two ends supported on two arms 32 having one end arranged for swinging movement on the shaft 23 of the winding cylinder 25 in such a way that the load cylinder 30 is lifted by the growing roll 33 in the first winding station 24- and thereby swing the arms 3-2 upwardly. A valve 34 for supplying compressed air is arranged in the motion path of one of the arms 32, the valve 34 being mounted in the conduit to a cylinder 35 with a piston working by means of compressed air (FIGURES 5 and 6) for the turning of the cylinder drum 3 as will be described later.

The second winding station 36- comprises, in addition to the two adjacent drum cylinders 4 and 5, a winding cylinder 37 having its shaft 38 journalled at its two ends on two arms 3-9 which have one end mounted for swing movement on the shaft 23. The winding cylinders 25 and 37 are at three or four points along their length provided with peripheral V-belt notches, and in these notches there are located loosely-running, rather stiff endless belts 40 guiding the smaller rolls from the first winding station 24 to the second station 36. The cylinder 37 is simultaneously driven by the cylinder 25, which is in turn driven by an endless V-belt 41 from a grooved pulley 42 on the intermediate shaft 21 via a belt tightening pulley 43. The grooved pulley 42 is driven by a V-belt 44 surrounding the cylinder drum 3 and engaging in one of the notches on the drum cylinders 4-11. Thus, all the cylinders of the machine taking part in the winding are rotated in the same direction.

A stop 45 serves to limit the downward swinging movement of the arms 39. In the motion path of the arms 39 there are arranged, above the latter on different levels, two compressed air valves 46 and 47, the valve 46 being mounted in the conduit to a compressed air cylinder 49 for operating the device 18 for feeding cores, and the valve 47 being mounted in the conduit to a compressed air cylinder 49 for operating the cutting of the web. 51 and '52 designate two resilient means arranged on one arm 39 adapted to influence the valve spindles of the valves 46 and 47. By adjustment of the position of the valve 47, or by movement of the spring 52 further away from this valve, it is possible to adjust the outer diameter of the rolls to a desired value.

The winding cylinder is composed of a number of circular discs 53 which, together with tubular spacers 54, are joined to form a unit which is rotatable about the shaft 23. In the space between adjacent discs 53 there engage the two branches 55 and 56 of fork-shaped members 57 of wood or a plastic material, the said means 57 having a hook-like portion 58 on the outer end resting on a supporting shaft 59. The shaft 59 is carried by the ends of two-armed levers 61 which are journalled about shaft pins 60, the upper arm end of the levers 61 being journalled by means of a bolt on the outer end of a piston 63 which is axially movable in the outer end of the cylinder '49. Each one of the fork-shaped members 57 is on its lower branch 56 pnovided with a spring 64 of bent flat steel serving as a cutting device.

At the upper end of the machine there is arranged an inclined path 65 for the pasteboard cylinders 19. In front of the lower end of the path 65 there are arranged two plates 66 in the form of sectors. The plates 66 are arranged on a transverse shaft 67 and they are at their periphery provided with a notch 68 for taking up the pasteboard cylinders 19 one by one. Outside the periphery of the plates 66 there are arranged guides 69 for guiding the pasteboard cylinder 19 in the notch down to the cylinder drum 3 when turning the plates 66 in clockwise direction according to FIGURE 1. An arm 70 has one end journalled on the shaft 67, and the free end of the arm 70 is by means of a bolt connected to the outer end of a piston 72 which is axially movable in a pressure cylinder 48.

Above the device 18 for feeding cylinders 19 there is arranged a cylinder supply 73 the bottom of which comprises a number of endless belts 75 running over driving cylinders 74. When the belts 75 are slowly driven in the direction indicated by the arrow 76 in FIGURE 1, the cylinders 19 are orientated in such a way that those in a lower layer will be situated parallel to each other and are then fed in this position over the upper one of the cylinders 74 down in the cylinder path 65.

The web 77 which, in the present case, comprises creped paper, is fed from a supply roll 78 and is resiliently pressed by roller 80 against the two adjacent drum cylinders 6 and 7. Roller 80is supported by the two swingable arms 79.

In order to move the smaller roll 33 from the first winding station 24 to the second winding station 36, the cylinder drum 3 is turned in the direction of the arrow 81, a part of a revolution corresponding to the number of drum cylinders 4-11, i.e. in the present case, an eighth of a revolution. The turning step by step of the cylinder drum may be performed, for example, by the device shown in FIGURES 5 and 6. According to this arrangement, a disc 82 is attached to one of the drum gables 13 and is provided with an axially-extending ring 83 which is provided with eight driving abutments 84, a notch 85 being arranged in front of each one of the abutments. The ring 83 may be integral with one of the drum gables 13. On one of the ends of the drum shaft 2 there is journalled one end of a feeding arm 86 at the outer end of which a triangular disc 88 is journalled about a bolt 87. The disc 88 has one of its corners pivotally connected by means of a bolt 89 with the outer end of a piston 90 which is axially movable in the pressure cylinder 35. A roller 92 is journalled on a bolt 91 at another one of the corners of the disc 88, the dimensions of the roller 92 being chosen in such a way that it can engage the notch 85. In addition, an arc-shaped notch 93 is provided in the triangular disc 88, and a pin 94 on the arm 86 engages this notch. Radially outside the disc 82 there is arranged on the stand 1 an arresting means which is composed of a bent lever 96 journalled on a shaft 95. One arm 97 of the lever 96 is provided with a cylinder 99 which is carried on a shaft 98 and which has essentially the same dimensions as the roller 92. On the other arm 100 of the lever 96 there is arranged a tension spring 101 which tends to turn the lever 96 in a clockwise direction.

This intermittent turning device acts in the following way. When the rear end of the cylinder 35 is supplied with compressed air, the piston 90 is moved out of the cylinder. Upon swinging in a clockwise direction of the disc 88 by means of the piston 90 until the roller 92 abuts against the radially inner surface of the ring 83, the arm 86 is forced by the piston 90 to swing in clockwise direction until the roller '92 abuts against the stop 84 in front of it when the cylinder 92, which due to the disc 82 is able to swing in a clockwise direction about the bolt 87, snaps into the notch 85. The cylinder 99 is then pressed against the action of the spring 101 out of the notch 85. The arresting of the cylinder drum 3 then ceases. Continued movement outwardly of the piston '90 causes the disc 82 and also the cylinder drum 3 to be turned in a counter-clockwise direction according to FIG- URE 5. This turning is continued until the next notch 85' reaches the cylinder 99' of the arresting means 96. At this moment the cylinder '99 is forced by the action of the spring 101 to engage in the said notch so as to prevent further turning of the drum 3. The turning is performed through exactly one eighth of a revolution. The piston 90 is thereupon returned to its original position by the action of compressed air or by means of a spring in the cylinder 35. When the piston 90 thereby is returned into the pressure cylinder 35, the triangular disc 88 begins to swing in a counter-clockwise direction about the bolt 87, whereas the roller 92 leaves the notch 85. When one border 102 of the notch 93 then abuts against the pin 94, further turning of the disc 88 is prevented. The tension force of the piston 90 is then transmitted by the pin 94 to the arm 86 which is thereby returned to its original position.

The winding operation proper is preferably described from the phase when the roll 33 is in the position it assumes in FIGURE 1 (however, the cylinder 19 is not yet fed to the first winding station 24). The diameter of the roll 33 is increased in the winding station 36 during the operation of the machine. The winding cylinder 37 is then lifted while bringing along the arms 39 in this movement. When the roll 33 has reached a certain dimension, the springing means 51 opens the valve 46 and then allows compressed air to enter the cylinder 48. This causes the piston 72 to swing the plates 66 in a clockwise direction, bringing along a pasteboard cylinder 19 which falls down on the paper web 77 in front of the load cylinder 30. The turning of the plates 66 also causes a lifting of the cylinder 30shown more closely in FIGURE 3by means of a chain 10-3 so that the cylinder 19 is fed into the first winding station 24. In the latter station the cylinder 19 is forced to rotate between the load cylinder 30, the winding cylinder 25 and the web 77 over the drum cylinder 5. When the roll 33 has reached its defined end dimension, the springing means on the arm 39 is moved up to the valve 47 which is then opened and allows compressed air to enter the cylinder 49. The piston 63 then swings the arms 61 in a counter-clockwise direction about the shaft 60 whereby the supporting shaft is moved closer to the Winding shaft 23. The steel springs 64 are thereafter pressed in a direction towards the drum cylinder and catch the running web 77 which is then torn off, its free end being forced up in the space between the winding cylinder 25 and the pasteboard cylinder 19 around which the paper web then is wound. The roll 33 in the second winding station 36 continues to rotate but is not increased as the web 77 is torn between the two winding stations. When the roll 33 in the first winding station 24 starts to increase, it is pressed down by the load cylinder 30 into the wedge-shaped space between the cylinders 5 and 6 (see FIGURE 2). The diameter of the roll 33 continues to increase whereas the cylinder 30 is lifted and brings along the arms 32. When the latter reach the valve 34 the valve is opened and allows compressed air to enter the cylinder 35. As a result, the cylinder drum 3 is rotated one eighth of a revolution, the roll 33 in the winding station 24 is moved to the winding station 36, and the finished roll in the lastmentioned station falls out of the machine. The course of events is then repeated.

By lifting the gable pieces 22 by means of the jack 27 together with the cylinders 25, 30, 37 carried in the said pieces 22, the drum 3 is rendered easily accessible for overhaul and repair.

The machine described above can be modified in a number of respects.

What I claim is:

1. In a machine for winding a web from a large supply roll into smaller rolls, a drumcomprising two gables, means rotatably mounting said gables, and a number of parallel cylinders mounted close to each other between said gables forming the periphery of said drum, drive means rotating the cylinders of said drum in one direction, means to rotate said drum in the direction of rotation of said cylinders a part of a revolution corresponding to the number of said cylinders, a load cylinder movably mounted beyond the space between a pair of said cylinders of said drum, a first winding cylinder fixedly journaled beyond said drum adjacent to said load cylinder, said pair of cylinders, said load cylinder and said first winding cylinder defining a first winding station, a second winding cylinder movably mounted beyond an adjacent space between said cylinders of said drum, two of said cylinders of said drum and said second winding cylinder defining a second winding station, means feeding web from a large supply roll to said first winding station wherein a small roll is wound, means activating said means to rotate said drum while a small roll is being wound in said first winding station, the rotation of said drum advancing a small roll to said second winding station, and means cutting the web between said winding stations before said drum rotates each part of a revolution, means driving said first winding cylinder, said load cylinder being freely rotatable, a shaft about which said first winding cylinder is mounted, a first pair of arms journaled about said shaft, the free ends of said arms rotatably supporting said load cylinder, said load cylinder resting upon a smaller roll being wound in said first winding station, the winding of a smaller roll in said winding station raising said load cylinder and pivoting said first pair of arms, drive means driving said second winding cylinder, a second set of arms journaled about said shaft and supporting said second winding cylinder, and with the addition of relatively stiff endless belts loosely disposed about and along the lengths of said first winding cylinder and said second winding cylinder and guiding said winding rolls passing fromsaid first to said second winding station as said drum rotates a part of a revolution.

2. The combination according to claim 1 wherein said means activating said means to rotate said drum while a small roll is being wound in said first winding station comprises means responsive to the outward pivoting of said first pair of arms.

3. The combination according to claim 2 wherein said means rotatably mounting said gables is a shaft and wherein said means to rotate said drum a part of a revolution comprises a hydraulic cylinder containing a piston, a driving element pivotally mounted on the shaft of said gables, a ring attached to one gable of said drum, said ring containing a notch for each of said cylinders of said drum, and notch engaging means on the end of said driving element, the piston of said hydraulic cylinder pivoting said driving element as said notch engaging means enters a notch in said ring rotating said drum a portion of a revolution corresponding to the number of cylinders of said drum, said piston pivoting said drive element upon the activation of said hydraulic cylinder.

4. The combination according to claim 1 wherein said cylinders of said drum contain peripheral grooves at one end and wherein said drive means rotating said cylinders of said drum is a motor having a pulley, and with the addition of V-belts riding in the grooves of said cylinders of said drum, at least one of said V-belts also extending about the pulley of said motor.

5. The combination according to claim 4 with the addition of an idler pulley, one of said V-belts extending about said cylinders of said drum also extending about said idler pulley, and wherein said means driving said first winding cylinder comprises a belt extending about said idler pulley and said first winding cylinder.

6. In a machine for winding web from a large supply roll into smaller rolls, a drum having a first shaft, two gables rotatably mounted on said shaft, and a number of parallel cylinders mounted close to each other with small clearances therebetween, the cylinders being mounted between said gables and forming the periphery of said drum, a motor pulley, motor means driving said motor pulley, said cylinders of said drum each containing a number of V-belt grooves at one end, V-belts passing about said cylinders of said drum engaging the V-belt grooves, one of said V-belts also passing about said motor pulley rotating each cylinder of said drum, an idler pulley, another of said V-belts passing about said cylinders of said drum and said idler pulley rotating said idler pulley, means to rotate said gables and thereby said drum in the direction of rotation of said cylinders a part of a revolution corresponding to the number of said cylinders of said drum, a second shaft, a first winding cylinder rotatably mounted on said second shaft beyond the cylinders of said drum, belt means extending about said idler pulley and said first winding cylinder rotating said winding cylinder, a first pair of arms journaled on said second shaft and extending against the direction of rotation of said drum, a load cylinder rotatably mounted between the ends of said first pair of arms, said first winding cylinder said load cylinder and two adjacent cylinders of said drum defining a first winding station, means feeding web from a large supply roll to said first winding station wherein a smaller roll is initially wound, said load cylinder resting on a smaller roll while it is being Wound in said first winding station, a second set of arms extending in the direction of rotation of said drum, a second winding cylinder, stiff belts extending loosely around and spaced along the lengths of said first and second winding cylinders, said second winding cylinder and a pair of cylinders of said drum defining a second winding station, means responsive to the outward movement of said first set of arms activating said means to rotate said gable-s and thereby said drum, means to cut the web between said winding stations, means responsive to the outward movement of said second set of arms activating said means to out said web, cores about which smaller rolls are wound, and means for introducing a core, into said first winding station before said web is cut.

7. In a machine for winding a web from a large supply roll into smaller rolls, a drum comprising two gables, means rotatably mounting said gables, and a number of parallel cylinders mounted close to each other between said gables forming the periphery of said drum, drive means rotating the cylinders of said drum in one direction, means to rotate said drum in the direction of rotation of said cylinders a part of a revolution corresponding to the number of said cylinders, 21 load cylinder movably mounted beyond the space between a pair of said cylinders of said drum, a first winding cylinder fixedly journalled beyond said drum, adjacent to said load cylinder, said pair of cylinders, said load cylinder and said first winding cylinder defining a first winding station, a second winding cylinder movably mounted beyond an ajacent space between said cylinders of said drum, two of said cylinders of said drum and said second winding cylinder defining a second winding station, means feeding a web from a large supply roll to said first winding station wherein a small roll is wound, means activating said means to rotate said drum while a small roll is being wound in said first winding station, the rotation of said drum advancing a small roll to said second winding station, and means cutting the web between said winding stations before said drum rotates each part of a revolution, means driving said first winding cylinder, said load cylinder being freely rotatable, a shaft about which said first winding cylinder is mounted, a first pair of arms journaled about said shaft, the free ends of said arms rotatably supporting said load cylinder, said load cylinder resting upon a smaller roll being wound in said first winding station, the winding of a smaller roll in said winding station raising said load cylinder and pivoting said first pair of arms, drive means driving said second winding cylinder, said means activating said means to rotate said drum while a small roll is being wound in said first winding station comprising means responsive to the outward pivoting of said first pair of arms.

References Cited in the file of this patent UNITED STATES PATENTS 1,076,831 Kilmer Oct. 28, 1913 1,532,753 Jones et a1. Apr. 7, 1925 1,958,068 Raiche May 8, 1934 2,270,818 Cook Jan. '20, 1942 2,283,087 Payne May 12, 1942 2,586,833 Kohler et al Feb. 26, 1952 2,736,508 Langbo Feb. 28, 1956 2,845,231 Grettve July 29, 1958 2,984,426 Johnson May 16, 1961

Claims (1)

1. IN A MACHINE FOR WINDING A WEB FROM A LARGE SUPPLY ROLL INTO SMALLER ROLLS, A DRUM COMPRISING TWO GABLES, MEANS ROTATABLY MOUNTING SAID GABLES, AND A NUMBER OF PARALLEL CYLINDERS MOUNTED CLOSE TO EACH OTHER BETWEEN SAID GABLES FORMING THE PERIPHERY OF SAID DRUM, DRIVE MEANS ROTATING THE CYLINDERS OF SAID DRUM IN ONE DIRECTION, MEANS TO ROTATE SAID DRUM IN THE DIRECTION OF ROTATION OF SAID CYLINDERS A PART OF A REVOLUTION CORRESPONDING TO THE NUMBER OF SAID CYLINDERS, A LOAD CYLINDER MOVABLY MOUNTED BEYOND THE SPACE BETWEEN A PAIR OF SAID CYLINDERS OF SAID DRUM, A FIRST WINDING CYLINDER FIXEDLY JOURNALED BEYOND SAID DRUM ADJACENT TO SAID LOAD CYLINDER, SAID PAIR OF CYLINDERS, SAID LOAD CYLINDER AND SAID FIRST WINDING CYLINDER DEFINING A FIRST WINDING STATION, A SECOND WINDING CYLINDER MOVABLY MOUNTED BEYOND AN ADJACENT SPACE BETWEEN SAID CYLINDERS OF SAID DRUM, TWO OF SAID CYLINDERS OF SAID DRUM AND SAID SECOND WINDING CYLINDER DEFINING A SECOND WINDING STATION, MEANS FEEDING WEB FROM A LARGE SUPPLY ROLL TO SAID FIRST WINDING STATION WHEREIN A SMALL ROLL IS WOUND, MEANS ACTIVATING SAID MEANS TO ROTATE SAID DRUM WHILE A SMALL ROLL IS BEING WOUND IN SAID FIRST WINDING STATION, THE ROTATION OF SAID DRUM ADVANCING A SMALL ROLL TO SAID SECOND WINDING STATION, AND MEANS CUTTING THE WEB BETWEEN SAID WINDING STATIONS BEFORE SAID DRUM ROTATES EACH PART OF A REVOLUTION, MEANS DRIVING SAID FIRST WINDING CYLINDER, SAID LOAD CYLINDER BEING FREELY ROTATABLE, A SHAFT ABOUT WHICH SAID FIRST WINDING CYLINDER IS MOUNTED, A FIRST PAIR OF ARMS JOURNALED ABOUT SAID SHAFT, THE FREE ENDS OF SAID ARMS ROTATABLY SUPPORTING SAID LOAD CYLINDER, SAID LOAD CYLINDER RESTING UPON A SMALLER ROLL BEING WOUND IN SAID FIRST WINDING STATION, THE WINDING OF A SMALLER ROLL IN SAID WINDING STATION RAISING SAID LOAD CYLINDER AND PIVOTING SAID FIRST PAIR OF ARMS, DRIVE MEANS DRIVING SAID SECOND WINDING CYLINDER, A SECOND SET OF ARMS JOURNALED ABOUT SAID SHAFT AND SUPPORTING SAID SECOND WINDING CYLINDER, AND WITH THE ADDITION OF RELATIVELY STIFF ENDLESS BELTS LOOSELY DISPOSED ABOUT AND ALONG THE LENGTHS OF SAID FIRST WINDING CYLINDER AND SAID SECOND WINDING CYLINDER AND GUIDING SAID WINDING ROLLS PASSING FROM SAID FIRST TO SAID SECOND WINDING STATION AS SAID DRUM ROTATES A PART OF A REVOLUTION.

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