US886332A - Roll-toilet-paper machine. - Google Patents

Description

3 SHEETS-SHEET 1.

PATENTED APR. 28, 1908. G. H. SIBLEY.

ROLL TOILET PAPER MACHINE.

APPLICATION FILED JUNE 8, 1905.

wmmm a a. 5632.2,

No. 886 332. PATENTBD APR. 28, 1908.

G. H. SIBLBY. ROLL TOILET PAPER MACHINE.

APPLIGATIQN FILED JUNE 8, 1905.

3 SHEETSSHEET 2.

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GEORGE HENRY SIBLEY, OF SPRINGFIELD, MASSACHUSETTS.

ROLLJVIOILET-PAPER ivracmnn.

ism for advantageously handling the paper from the large roll, as received from the. mill, while being perforated and slit and until it is finally formed into small rolls ready for the market, such mechanism comprises perforating, slitting and rolling means, together with subsidiary or auxiliary parts or members more or less closely allied therewith, all as hereinafter set forth. The principal objects of my invention are, first, to provide a durable, compact and simple machine for the purpose above designated,

whereby the output of toilet paper may be increased in an economical manner, owing to the high rate of speed at which my machine can be run without tearing or otherwise inj uring the paper; second, to actuate the paper evenly through the machine without twisting and wrinkling it; third, to furnish a suitable tension or retarding device for thelarge or original paper supply roll; fourth, to furnish a suitable driving tension device for the small rolls or their winding spindle; fifth, toprovide suitable mechanism for perforating the paper without tearing it; sixthfto provide mechanism for slitting the paper (and trimming when necessary) also without tearing it, and, seventh, to furnish a winding spindle which not only tightly holds the paper wound thereon, but is so constructed that it be easily and quickly withdrawn from the finished or full rolls.

My machine can be driven by a single belt and is otherwise so constructed as tobe conv'eniently controlled at all times, in fact, some parts are automatically governed, all with a view to speed without undue loss of time, or of paper consequent upon tearing the same or spoiling it in some other manner for the purpose for which it is intended. With this machine a saving in time, labor and material is effected.

I attain. the objects and secure the advan, tages above pointed out, by the mechanism Specification of Letters Patent.

Application filed June 8, 1905.

- illustrated in the nature of my invention.

Eatented April 28, 1908.

Serial No. 264,257.

accompanying drawings, in which.

Figure 1 is a longitudinal section on lines w.r, Fig. 3, of my machine; Fig. 2, a detail View showing thegears on the ends of the perforating rollers; Fig. 3, a plan view of the machine; Fig.4, an enlarged sectional view of one of the driving tension devices for the winding spindle Fig. 5, an enlarged sectional View of one end of the winding spindle, showing the method of connecting the same with its driving shaft Fig. 6, an enlarged crosssection of said spindle, on lines y y, Fig. 7, looking toward the right; Fig. 7, an enlarged side elevationof the spindle, the middle portion being broken out; Fig. 8, an enlarged cross-section through the perforating rollers, one of the slitters also belng shown Fig. 9, an enlarged side elevationof the combined perforating andslitting roller, and, Fig. 10, a side elevation of the tension or retarding device which may supply roll shaft.

Similar letters and figures refer to similar parts throughout the several views, and the arrows indicate the directions of moving.

arts.

Although the accom anying drawings and the description thereo WhichI am about to give, show and explain a practicable and efiioient embodiment of my invention in a machine, it is to be understood that changes of minor importance, such as alterations in shape and size, the omission of some one or more parts, and changes in construction, which fall within thescope of my claims,

may be made without departing from the Passing now to the consideration of the machine as illustrated I will proceed to describe the same in detail, both as to construction and operation. A frame is first provided, consisting of two side-pieces a connected by a cross-piece b and rods 0. At one side of the front end of the frame is an upright or standard'd. The frame and standar l maybe bolted to the floor in any convenient manner.

On the rear end of the side-pieces a are bearings ee for a shaft f upon which is mounted the core 9 of "a pa er supply roll'h. Bearings are bolted to t e up er edges of the sideieces a and support the s aft 15 of a guide ro ler 16, and the shaft 17 of a uide roller 18 above said roller 16 and out 0 contact therewith. The web it of paper passes pulleys 28 and 29. The pulleys 27 from the roll it beneath the roller 16, upward in front thereof to the back side of the roller 18, and thenover the top of said roller 18, forward, to the perforating and slitting mechanism. The rollers 16 and 18 assist in straightening the web h in its forward travel from the paper supply roll. a

The perforating mechanism comprises four rollers, namely, an 11 per perforator- 19, a lower perforator or p laten 20 and tension rollers 21 and 22, both of the latter being normally in contact with saidplaten, the roller 21 bearing against the lower rear uadrant thereof and the roller 22 against t e lower; front quadrant. The two perforators are by preference slightly separated. The perforator 19 is mounted on a shaft 23 journaled in bearings on the side pieces a forward of the positions occupied by the bearings i, but somewhat higher than the latter since the upper edges of the front portions of said side pieces are raised considerably above the corresponding edges back of the same, as will be clearly seen in Fig. 1. This difference in height is made to enable the web it to pass from the guide roller 18 to the tension roller 21 along a substantially horizontal plane, but is not an important feature. A. gear 24 is fast on one end of the shaft 23 outside of the adjacent bearing. The platen 20 is mounted on a shaft 25 which is journaled in the side-pieces a, directly below the shaft 23. Both terminals of the shaft 25 project beyond the side-pieces. A. gear 26, meshing with the gear 24, is fast on one end of the shaft 25, and the opposite terminal. of said shaft carries a loose pulley 27 and two tight and '28 are for the driving belt (not shown) of the machine.

On the inside face of the tallerportion of each side-piece a are two angularlugs 30, from each of which a bolt or rod 31 having a head 31 extends, and a box 32 is slidin 'ly .mounted on such rod. A sprin 33 encirc es said rod between its head an the box 32 thereon. There are four such boxes and the trunnions or shafts 3a of the tension rollers 21 and 22 are journaled therein in such a manner that they can be easily removed therefrom when said rollers are respectively forced rearward and forward, against the resilienc of the springs 33, a sufficient distance in eac direction, the upper sides of the boxes being open. The sprin s 33 normally force the boxes towards eac other and carry the tension-rollersagainst the platen, and when the parts are thus dis osed the open sides of said oxes are oovere by the horizontal flanges of the lugs 30 so that the shafts 34 cannot Work out of their bearings. The bolts or rods 31 may be adjusted, if desired, to increase or decrease the amount of tension exerted by the springs 33.

The paper passes from the guide roller 18 the top of ceases to and beneath the tension roller 21 upward over the laten 20, downward beneath the tension ro ler 22 and forward and upward to the winding spindle 35 at the front or delivery end of the machine. This aper is an imperforate and uncut web until it reaches the platen 20 where it is perforated, and be presently explained.

The erforator 19 is a roller having a plurality o serrated knives 36 set axially therein in cross-section, with the teeth extending beyond the periphery. thereof, and held in place by means of wedge-shaped bars 37 and screws 38, the knives and bars extending parallel with the axis of the roller. Upon loosening the screws 38, the knives 36 can be removed or readjusted. in the present in stance there are three knives and the teeth of each are long enough, not only to bridge the space between the peripheries of the perforator 19 and platen 20 on a vertical line cutting their centers, but to enter a corresponding longitudinal slot 39 in said platen, as will be apparent from the explanation below. The p a'ten 20 is also a roller having therein the same number of slots 39 as there are knives 36, and said platen and the perforator above are so arranged relative to each other, that, when revolved, each of said slots receives the teeth. on the associated knife. A strip or buffer 40, of wood. or other suitable material, is placed in each slot 39 on the side where the teeth of the knife leave said slot, and the arrangement is such that said teeth contact with said buffer before passing out of the slot. It will now be seen that the knives 36, operating in conjunction with the buffers 40, perforate the paper laterally without completely severing it, as indicated at h in Fig. 3, so that the paper can be easily torn a art in the usual manner for use. The comp ete operation presses the paper into the corresponding slot and against the buffer therein with sufhcient force to cut through the pa er, and then releases the latter and passes c ear of it without tearing. The tension rollers 21 and 22 which are revolved with and by the platen, serve to hold the paper tightly iii place on said platen while passing over the same to be perforated, and immediately afterward slit as will pres- I ently appear. One tension roller only might be used, or the position of; one or both changed, but it is believed the best results are obtained by using two and arranging together with the tension rollers serve as a feed for the pa er and said platen also forms a part of the s itting mechanism in addition to being a part of the erforating mechanism.

In order to adapt t e platen 20 for slitting as well as perforating purposes, a series of narrow annular grooves 20 is formed therein, the grooves corresponding in number with directly thereafterit is slit, as will them substantially as shown. The platen is this: Eachset of teeth.

there will then be no needfoi trimming at in Fig. 9, and at the intersections of the slots paper-seven in the present instance; the

. shaft by means of a screw 49. Arms sitm ceases the slitters 41. The slitting mechanism 3 which I will now describe in full, divides or slits the web h,"after being perforated, into a plurality of strips. h which enter into the formation of the small rolls h Six rolls if of the finished product are shown in the first view. At the time the strips h are. formed, ifthe web h is too wide, .as in the present case, the surplus is trimmed off from the edges and wound into narrow rolls on the spindle along-side of the rolls 72/, the narrow strips ortrimrnimgs and rolls being" indicated by the characters k and Zr, respectively. Asa usual thing, however, the paper procured should be of the right width and either edge. -The-slitters 41, which are arranged in a series, arelprovided with adjustable means of support. As manyslitters are furnished as there are to he cuts in the two outside slitters, however, which serve as trimmers, would not be needed it the paper were of just the proper width for the required number of small'rolls. Each slitter 4i isattached by a screw 42 to a slotted arm dfi-slidingly mounted in a lug is on a carrier 45 and held in place by a screw .16 passing through the slot into said lug,

Each carrier 45 is mounted on a shaft 47 which is in turn mounted in. 'hracliets .ZY-Z bolted against the inside. faces of the taller portions of the side-pieces a, the carrier being split at 48 and clamped tightly around sai extend" forward from the members y' over the shaft 47 to hold the latter in its hearings in" the rear terminals of the brackets Z; upon removing or otherwise displacing said arms, said shaft, with the carriers, etc-mounted thereon can be taken out of the. machine.

Upon loosening the screws 49 the carriers ranged to enter the groov'esZO in the platen, can he raised or lowered by reason of the ad justment afforded by the screws 46. it will now be seenthat, when the. er is drawn between the grooved roller and t e slitters, it will he cut longitudinally, and the construction and arrangement of parts is such as to cause the'paper to he out without tearing.

- The bufiers 41) are cut away adjacentto the grooves 20 1111 the platen 20 so as to render such grooves continuous, as shown at 90 39 with said grooves said slots are closed by continuations 91 of the eriphery of said platen whereby the edge oi each slot against whic the corresponding slitter 41 bears is made practically without a break and a support for the paper is afforded at this point' The construction and arrangeinent just d6: scribed-enables the paper to be out without tearing or wrinkling.

The winding spindle 35, which receives the paper after it passes-the slitting mechanism, is revolved by a shaft 50 with which it is connected, one end of said shaft heing journaled in. a bearing n on the standard (2: and the other end in a bearing n onthe adjacent sidepiece a. One end of the winding spindle 35 is supported by a bearing n on the front end of one of the side-pieces a, the bearingn being on the end of the other side-piece. Since this spindle has to he frequently disconnected from its driving shaft l'provide such shaft at one end with a pin 51. and recess and groove the connecting, end of the associated spindle, as best shown at '52 in Fig. '5, to receive the end of the shaft with the pin. This arrangenient affords a convenient means of connection and disconnection hetweenthe s indie and its shaft. The endoi the spine e35,- opposite that which is adapted to he connected with the shaft 50, is rovided with a 1 have provided a driving tension for the 9 shaft 50, which comprises adislr 55, an integral sleeve 5%) tight on the shaft, apiulley -57 loosely mounted on said sleeve," a frictionrnernber 58, of pastelooard or other suitable material, interposed between adjacent faces of the dish an pulley, an adjusting nut 59 and a s. iral sprin 60, the latter losing interposed etween t e pulley and nut. The sleeve '55 is screwthreaded to accogrjrnodate the nut 59'. A collar 61 tight on the shaft, at the outer end of the sleeve 56, prevents the nut 59 from comin ofi of said sleeve. "These arts are all-clear y shown in Fig. .4. 'riction device operates as follows: The

pulley 57 may revolve. constantly, but when the resistance offered by the paper is greater for any reason than the frictional resistance afforded by the member 58 vand contacting parts, the dish 55 ceases to rotate, thus bringing the shaft upon which it is mounted and the attached winding spindle to a stopi The amount of irictiona resistance is regulated by screwing the adjusting nut '56 nearer or tart-her away from the pulley, accordingly compressing or relaxing the spring 50 and increasing or decreasing the amount of trictional contact between the ulleyand the member 58 and the disk an said member. This is a valuable feature of my invention hecauseit always enables-me to employ a driving medium sufficiently strong to revolve the winding" spindle 1 et weaker than the force n'ecessar to hrea or tear the paper hytensile strain. if desired, the -friction member 58 may be omitted and adjacent surfaces of the disk 55 and pulley 57 brought into contact anddepended upon for the necessary frictional resistance.

A belt 62 connects the pulley 29 on the shaft 25.with the pulley 57 on the shaft 50.

It will now be seen that the power for the entire mechanism is furnished by and from the pulley 28 on the shaft 25. i

The winding spindle which I prefer to use consists of a roller, best shown in Figs. 6 and 7, having therein a lon itudinal slot 63 opening through the perip cry, and a spline 64 inserted in said slot in such a manner that it will bear against the cores u on which the small rolls h' are wound an prevent them from turning independently of the spindle, one such core being shown at 65 in Figs. 1 and 6. A screw 66 is set-into the slot 63, ad-

jacent the end which connects with the shaft- 50, and one or more spiral springsfi? are let into recesses in the bottom of said-slot between said screw and the opposite end of the spindle. One end of the spline 64 is beveled and bifurcated at 645, and the opposite end of said spline is provided with a strap 68 to serve as a handle in withdrawing the spline from the spindle and the rolls thereon. In practice, the spline 64 is placed in the slot 63 on the spring or springs '67, with the forked end of said screw 66, an said spring or springs thrust the spline outward a ainst the inner surfaces of the cores 65, thereiy holding them against independent movement. In the action of the spline just described the screw 66 serves as a fulcrum. After the rolls have become of the proper size, the spindle is first removed from the machine and then from the rolls, the last operation being much .moi'e easily and expeditiously performed than heretofore owing to the peculiar construction of the spindle, the spline yielding readily under pressure when grasped at the end opposite the bifurcation 64 and so offering very little resistance to the withdrawal of the spindle.

To prevent backlash of the paper supply roll it and insure an even draw on the paper therefrom, a tension device, as'shown in Figs. and 10, may be used. This tension device comprises a flanged disk 69 adapted to be socured to one end of the shaft 7" by means of a set-screw 70, a yoke 7i made in two pieces pivoted together at 7 2 and a connecting bolt 73, A dog 74 extends fromthe yoke 71 to contact with a stop pin 0 projecting from the adjacent side-piece of the frame, such dog bearing on top of such pin. Now, as the shaft f with the disk 69 revolves, the yoke- 71 acts as a drag since the pin 0 prevents said yoke from rotating through the medium of the dog 74.. The amount of frictional resistance offered by-the yoke to the disk is regulated, of course, by the bolt 73. The device can be easily and quickly applied to and re moved from the shaft.

spline beneath the head of the ceases It is to be understood that the teeth are omitted from the perforatin knives 36 adj acent the grooves 20 in the p aten, in order to leave corresponding portions of the paper imperforate until they reach the slitters 4:1, otherwise the paper would be liable to tear.

The operation of the machine will'be gei1- erally understood from the foregoing description, but an explanation of the manner in which the paper from the source of supply or large roll is first started through the machine seems desirable. The web is first led under and over the rollers 16 and 18, next under the rear tension roller which is forced backward against its springs to enable this to be done, over the laten, andunder the front tension roller which is forced forward at the time, and thence finally to the winding s indle where it is fastened to the cores on sai spindle, generally by pasting; then the shaft 47, which had previously been removed by preference, is replaced in its bearings with the slitters in position. The machine is now started and run until the small rolls are of the required size, when the machine is stopped and the spindle is disconnected and taken out ,of such rolls, the strips having been cut across by hand or otherwise before. removing the spindle from the machine. Inasmuch as the small rolls are now held together by the uncut paper which extended from the laten to the spindle at the start, they must e cut apart; or, if desired, this uncut paper may be severed and removed before commencln to wind the strips, in which event, as also w en rolls are to be wound, it is subsequent small to bring the front ends of simply necessa r the strips onto t e spindleor the cores thereon and there attach them by pasting or otherwise. The waste of paper is slight, in case the. uncut portionsare thrown away,

however, much less than when the slitters are farther back in the machine. At each revolution of the present pei forator the webs are each divided into three sheets crosswise, and these in turn are slit lengthwise into six sheets by the slitters, v

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, in a roll toiletpaper machine, with means holding the aper sup ly, combined perforating and slitting mec ianism comprising a pe'rforator and a slitter'with a platen common toboth, of a winding spindle, and a driving tension there for having a predetermined amount of resistance and adapted to yield and permit-said spindle to cease revolving when such resist ance is overcome.

2 Combined. erforating and slitting mech anism, for a 1'0 toilet paper machine, comprisin a rotary erforator provided with serrated nives, a's itter or slitters, and a rotary platen having longitudinal slots therein to receive the teeth on said knives and an annular tensioned against such eaaeea groove or grooves therein to receive said slit ter or slitters, the latter being suitably mount--.

ed in operative relation with said platen.

3, Perforating mechanism, for a roll toilet paper machine, comprising a rotary perforator provided with serrated knives having no vmovement independent of the perforator,

slots, each of said bufiers being cut away at the points of intersection with said grooves, and the periphery of said platen being continued across the slots at points adjacent to the intersections of the slots with the grooves.

5. Slitting mechanism, for aroll toilet paper machine, comprising a roller or platen aving an annular groove therein, a loosely mounted shaft, a carrier ad'ust-ably mounted on said shaft, an adjusta le armslidingly connected with the carrier and extending at substantially right-angles thereto, means for firmly. holding said arm after adjustment, and a slitter mounted on the arm and adapt ed to enter the groove in said platen.

6. Combined perforatin feeding and slitting mechanism, for a rol toilet paper machine, comprising arotary perforator provided with serrated knives having no move ment independent of the erforator, a rotary platen having slots which receive the teeth on said knives andannular grooves therein, the perforator and platen being always out of contact, a series of slitt ers' arranged and adapted to enter said grooves, and rollers I platen to hold paper in goil tact therewith while being perforated um s it.

7. The combination, in a roll toilet paper in one end,-

nmrhinc, with a shaft having a pin of a winding spindle grooved and recessed at one end to receive the end of said shaftwhich is provided with the pin. 7 D

S. A driving tension, for a roll toilet pa er machine, comprising a rotary shaft, a isk provided with a sleeve tight on said shaft, a

p'ulley loose on said sleeve, and means mounted on the sleeve to cause said pulley to frictionally engage said disk.

9, A driving tension, for a roll toilet pa er machine, comprising a rotary shaft, 'a disk provided with a sleeve fight on said shaft, a pulley loose on said sleeve, a nut threaded .to the s eeve, and a spring between said pulley and said nut.

a rotary perfora-- 10. A driving tension, for a roll toilet pa per machine, com risin a. rotary; shaft, a disk provided with a s eeve tight on said. shaft, a pulley loose on said sleeve, a nutthreaded to the sleeve, a spring between said pulley and said nut, and a collar tight on the shaft at the end of the sleeve adjacent the nut.

11. A winding spindle, for a roll toilet paper machine, comprising a roller havin a Ongitudinal slottherein and provided wit a spline in said slot, a fulcrum member in the slot to retain one end of said spline in place, and resilient means tov normally force the spline in part beyond the periphery of said roller.

12. The combination, in a winding spindle for a roll toilet paper machine, with a roller having a longitudinal slot therein and provided in such slot with resilient means and at one end with a fulcrum member, of a spline arranged and adapted to enter said slot and to engage said fulcrum member and bear against said resilient means, the end of such spline which an ages the fulcrum member being thereby held against the action of the resilient means.

13. The combination, in a tension device for a roll toilet paper machine, with a paper supply roll shaft, and a support therefor, of a disk tight 011 said shaft,'a two-part yoke car ried by said disk and provided witha dog, means to tighten and loosen said yoke about the disk, and a stop in extending from said support into the pat of said dog.

14. The combination, in a roll toilet aper machine, of a suitable frame, means-for olding the paper supply at the back of such frame, a winding spindle at the front of said frame, a rotary perforator provided with serrated knives having no movement independent of the perforator, a series of slitters, and a rotary platen having longitudinal slots therein to receive the teeth on said knives and annular grooves to receive the edges of said slitters, the erforator, slitters and platen being located etween the holding means and the spindle with the slitters between the platen and spindle.

15. The combination, in a roll toilet pa er machine, of a suitable frame, means for ho ding the paper supply at the back of such frame, a winding spindle at the front of said frame, a rotary perforator provided with serrated knives, 'a series of slitters, and a rotary platen. having longitudinal slots therein to receive the teeth on said knives and annular grooves to receive the edges of said slitters,

the perforator and platen eing always out of contact and the perforator, slitters and platen being located between theholding means and the spindle with the slitters between the platen and spindle;

16'. The combination, in a roll toilet paper machine, of a suitable frame, means for hold.

ing the paper supply at the back of such frame, a Winding spindle at the front of said frame, a rotary perforator provided with serrated knives having no movement independent of the perforator, a series of slitters, and a rotary platen having longitudinal slots therein to receive the teeth on said knives and annular grooves to receive the edges of said slitters, the perforator and platen being always out of contact and the perforator, slitters and platen being located between the holding means and the spindle With the slitters between the platen and spindle.

17. The combination, in a roll toilet aper machine, of a suitable frame, means for olding the paper supply at the back of such frame, a winding spindle at the front of said frame, a rotary perforator rovided with serrated knives, a series of shtters, a rotary platen having longitudinal slots therein to receive the teeth on said knives and annular grooves to receive the ed es of said slitters, the perforator and platen eing always out of contact and the perforator, slitters and platen being located between the holding means and the spindle With the slitters between the platen and spindle, and rollers tensioned seaeea against the laten to retain the paper in close eontaet wit the latter.

18. The combination, in a roll toileta er machine, of a suitable frame, means for hold ing the paper supply at the back of such frame, a winding spindle at the front of said frame, a rotary perforator provided with serrated knives having no movement independent of the perforator, a series of slitters, a rotary platen having longitudinal slots therein to receive the teeth on said knives and annular grooves to receive the ed es of said slitters, the perforator and platen being always out of contact and the perforator, slitters and platen being located between the holding means and the spindle with the slitters between the platen and spindle, rollers tensioned against the platen to retain pa er in close contact with the latter, and strai tenin'g or uide rollers, one above the other, between t e holding means and the platen.

In testimony whereof I have signed my 'name to this specification in the presence of two subscribin witnesses.

GE RGE HENRY SIBLEY. Witnesses:

HARRY HILLMAN BARR, FRANK ALBERT CUTTER.

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