US1842889A

US1842889A - Paper machinery

Info

Publication number: US1842889A
Application number: US303399A
Authority: US
Inventors: Harrison R Williams
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-09-01
Filing date: 1928-09-01
Publication date: 1932-01-26
Anticipated expiration: 1949-01-26

Description

Jan. 26, 1932. H. R. WILLIAMS PAPER MACHINERY .Filed Sept. 1, 1928 4 Sheets-Sheet l INVENTOR Mfr/L500 fr? mlliams. BY

ATTORN EYS Jan. 26, 1932. H. R. WILLIAMS PAPER MACHINERY ATTORNEY S m M NW 1 A. e mm .w B w m Y e B m s 4 8 2 9 1 w s d e n Q F @fim m o hi fi o N 0 m QM a Q o o a Rm. 0 o o no o a aw m Q m Q 8% O Q Q Q Jan. 26, 1932. w s 1,842,889

PAPER MACHINERY Filed Sept. 1, 1928 4 Sheets-Sheet 3 g N R Q YM.

ATTORNEYS H. R. WILLIAMS Jan. 26, 1932.

PAPER MACHINERY Filed Sept.

1, 1928 4 Sheets-Sheet 4 INVENTOR Harrison/K144704075.

BY %ala/% ATTORNEYS Patented Jan, 26, 1932 1,842,889

UNITED STATES PATENT OFFICE HARRISON R. W'ILPIAMS, F GLENS FALLS, NEW YORK PAPER MACHINERY Application filed September 1, 1928. Serial No. 303,399r

This invention relates to the manufacture tiple ply web is subjected by the slitting and of soft, absorbent pads and bandages from a reeling mechanism; thin tissue web and has for its principal ob- Figure 3 is a sectional side elevation of ject to provide mechanism which. will be the winder mechanism, showing duplicate suitable for building up the thin tissue into winders'disposed one above the other, the

multiple-ply webs, and which will be capable Winders being shown broken away intermeof high speed operation, will require reladiate the ends thereof for compactness of iltively little manual labor, and will produce lustration; composite webs which are of softer and more Figure 4 is a sectional side elevation dis- 10 absorbent character than similar webs manuclosing principally details of the take-ofi', slitfactured by mechanism of the prior art. ting and reeling mechanism;

A particular feature of the invention re-' Figure 5 is a fragmentary plan view showlates to the provision of duplicate winders ing particularly a considerable portion of the arranged, in parallel and adapted to act alwinding mechanism illustrated in Figure 2;

15 ternately to take the tissue web from a single and y source of supply and to deliver the resultant Figure 6 is a fragmentary plan view show multiple-ply webs alternately to a single slit ing the delivery end of the winder mechating and reeling mechanism. Duplication of nism and also showing the take-off, slitting, the slitting and reeling mechanism is thus and reeling mechanism.

20 avoided. Referring first to the general disclosure of A further feature of the invention relates Figure 1 a ply 1 is formed upon the lower face to the provision of winders of novel form, of an endless belt 2 and is conducted by the that is to winders inthe form of endless belts belt around an end roller 3 and over a feed running upon suitable driving drums or rollroller 4. onto a drying drum 5. The ply 1 25 ers. Such winders have the important adpasses around the drying drum and 1s vantage that there is no necessary limitation stripped therefrom by a doctor blade 6;

upon the length of multiple-ply web which From the drying drum 5 the tissue web passes may be formed at a single operation, and also either to an upper winding mechanism 7 or a the urther advantage that the tissu p s lower Winding mechanism 8. As illustrated 9 are caused to shift and creep back and forth in Figure 1 the web is being fed onto the with reference to one another during the winding mechanism 8. winding operation so that interlocking of ad- Th indi hanism 8 consists prlnjacent plies compacting of the several plies, cipally of end rollers 9 and 10 and an endless and objectionable tensioning of the plies are belt 11 running upon said rollers, and an avoided. Such winders, being of little endless supporting conveyor comprising a 8 height, are adapted for disposition one above belt 12 which runs upon end rollers 13 and 14:. the other for delivering to common slitting The end rollers 13 and 14 are not mounted and reeling mechanisms as mentioned in the in directly opposed relation to the rollers last preceding paragraph. 9 and 10 but are positioned beyond the ends 40 Other objects and advantages will hereinof the winding conveyor, the supporting con- 99 after appear. tveyor being longer than the wrndmg con- In the drawings forming part of this speci veyor so that no objectionable increase of fication: pressure occurs as the web increases in thick- V Figure 1 is a diagrammatic, side elevation, ness. illustrating in a general way the entire oper- The upper winding mechanism is similar ation with which the present invention has to the lower one and comprises as 1ts princlto do and illustrating means utilized in carpal parts an endless belt 15 that runs upon rying out such operation;

end rollers

16 and 17 and a supporting con- 50 Figure 2 is a perspective view illustrating veyor comprising an endless belt 18 thatruns particularly the treatment to which a

mulupon end rollers

19 and 20.

The two winding mechanisms are adapted to be independently driven, being provided with suitable independent clutches -which will be referred to more fully hereinafter. As illustrated in Figure 1 the lower winding mechanism 8 is being driven to take the tissue ply from the drying drum 5 and wind it layer upon layer on the belt 11. When a multipleply web has been built to the thickness desired the web 1 is torn off near the drum 5 and the end of the web is then inserted between the

belts

15 and 18 of the winding mechanism 7. Winding mechanism 7 is then set into operation to build up a multiple-ply web, the winding device 8 is stopped, the web is then fed by suitable feeding means, indicated generally at 19a, to a series of longitudinal slitters 20. In the phase of the cycle of operations illustrated in Figure 1 such a built up web is being fed to the slitters from the upper winding mechanism 7. After the web passes the slitters 20 it continues to a reeling mechanism 21, which will be described in detail presently, and is wound on reels preparatory to being removed from the machine and put in another machine for performing the next subsequent operation in the manufacture of the pads.

For a more complete and detailed under,- standing of the invention referenceshould be had additionally to Figures 3, 4, 5, and 6.

The drying drum 5 is driven by mechanism (not shown) and the lower winding mechanism is driven from the same source of power through a belt 22, a pulley 23, and a clutch 24, the clutch being operable by a lever 25 for connecting and disconnecting the pulley with a shaft 26 upon which the pulley is mounted. As seen best in Figure 3 the shaft 26 has fast upon it a sprocket 27 which, through a suitable chain 28, drives a sprocket 29 and thereby imparts rotary movement to the roller 10 for feeding the belt 11. The shaft 26'is also provided with a pinion 30 which meshes with a pinion 31 mounted on a stub shaft 32. Stub shaft 32 also carries a sprocket 33 which, through a chain 34, drives a sprocket 35 for imparting rotary movement to roller 14 to feed the belt 12. The belts 11 and 12 are driven at equal speeds slightly lower than the peripheral speed of the drying drum 5. As a consequence of this diiference of speed the tissue web is caused to assume a crepe form with transverse folds or corrugations as it leaves the drying drum. The web in passing from the drying drum is led over a guide rod 36 which is supported in a notch 37 of a bracket 38. The rod is so situated that the web comes in contact with the belt 11 or with the plies of material wound thereon speed of the

rollers

10 and 14, and the composite web which is being built upon the belt 11 travels at this same linear speed in all portions of its path except where it travels around the rollers 9 and 10. At these portions the outer surface of the web travels at a higher velocity, and since it is such a surface that effects the feeding of the web 1 into the winding mechanism there is always sufiicient material fed in to assure against tensioning of the material as it passes around rollers 9 and 10, and to assure a little slack in the several plies of the composite web in all other portions of the web, so that tight winding tending to compact the material is avoided. As a consequence of the intermittent taking up of this slack and letting it out again as the web passes successively around the rollers and along the level stretches of the winder the several plies are caused to shift relatively to one another, first in one direction and then the other so that the material has no tendency to have the corrugations of adjacent plies hecome intermeshed in compact form with one another. In order to further assure that the composite web shall not be under tension the upper stretch of the supporting belt 12 and the upper stretch of the belt 11 are supported horizontally and do not permit the composite web to sag under its own weight or under the weight of the belt 11. The supports for the upper stretches of the belts 11 and 12 consist, respectively, of supporting

plates

39 and 40 which form almost continuous supporting tables. The

plates

39 and 40 are supported, respectively, upon

cross beams

41 and 42 which are carried by longitudinal beams 43 mounted on uprights or standards 44.

In the gaps between the plates 40 provision is made of belt supporting rollers 45, which rollers are desirably arranged to protrude slightly above the plane of the upper surfaces of the plates 40 so as to provide rolling contact for the belt and thereby reduce frictional wear, and also to provide looseness between the tissue plies by causing a slight shifting between the plies as they pass over the rollers. Rollers 46 are provided in the gaps between plates 39 to assist in supporting belt 11 and to take a portion of the weight off the plates 39 and thereby reduce the frictional wear to which the belt is subjected in sliding over the plates 39.

Corresponding portions of the upper winder are similarly supported.

When the web has been built up to the desired thickness the winder 8 is stopped by disconnecting the clutch 24. The built up web is then severed transversely and the winder 8 is again set into motion, but at a reduced speed for delivering the built up web to the longitudinal slitter 20 and to the reeling mechanism.

The mechanism for thus feeding the web is operated from a motor 46. This motor drives a shaft 47, first entering a gear box 48 and through suitable gearing therein drives a sprocket 49. The sprocket 49 drives a chain 50 which in turn drives a sprocket 51 fast on a shaft 52. A sprocket 53 fast on shaft 52 acts thru a chain 54 to drive a clutch member 55, which runs loosely on a shaft 56 that carries the roller 9. A mating clutch member 57 fast on shaft 56 is shiftable into and out ofv driving engagement with clutch member 55 by operation of a lever 58.

The mechanism for conducting the web from the winder 8 comprises a conveyor consisting of a series of belts 59 running upon

rollers

60, 61, 62, 63. The train for driving the conveyor belts 59 comprises a tapered pulley 64 fast on shaft 52 a crossed belt running on said pulley and on a tapered pulley 65 carried by a shaft 66 and a belt'67 forming a driving connection between the shaft 66 and roller 60.

From the conveyor formed by belts 59 the web passes to a further conveyor consisting of a multiplicity of belts 68 running upon rollers 69, 70 and 71. The roller 71 is driven from shaft 66 through a belt 72.

While carried by the conveyor formed by belts 68 the web is subjected to the action of the longitudinal slitter 20 as will be described presently.

From the belts 68 the slitted web passes onto a conveyor formed by a belt 73 and rollers 74 and 75. The roller 74 is driven from shaft 66 through a belt 76. Provision is made of a hold-down conveyor 77 for assuring proper presentation of the web to theslitter 20., This conveyor overlies the active stretches of belt 68 and the adjacent ends of the active stretches of the belts 59 and 73. The conveyor 77 comprises belt 78 which runs upon rollers 79, 80', 81, 82, and which in theirupper stretches runs beneath guide rollers 83 and 84.

Shaft 52 drives the conveyor through a belt 85 and a pulley 86, the pulley 86 being fast on a shaft 87 by which the roller 82 is carried.

The slitters 20 are driven at high speed by a motor 88 through a pulley-89 on the motor shaft of belt90 and a pulley 91 fast on a shaft 92 that carries the slitters.

After the slitters 20 have operated upon the web, the web strips are conducted beneath I spraying nozzles 93 and onto a series of reels 94. The reels are provided with an axle 95 which is guided for vertical movement between vertical guides or standards 96 at opposite sides of the machine. The reels are rotated from the belt 73 through the material being wound on the reels and hence is caused to movealways at the same linear .7 peripheral speed as said belts, without producing either tension or slack in the material. As soon as the web strips have been fully wound up, the reels are removed from the machine and replaced by fresh reels. The

clutch lever 58 is then operated to render the eration with reference to winder 7 is the same as that described with reference to winder 8. When the web has been built up to the desired thickness, the winder 7 is stopped by operation of the clutch lever 99, the web is slitted transversely and the winderis then set into motion for feeding the web to the longitudinal slitters 20 and to the reeling mechanism. The driving means for the Winder 7 in effecting this operation is similar to the driving means of the winder 8. Shaft 52 drives a chain 100 which in turn drives a clutch member 101 loose on shaft 102. A mating clutch member 103 fast on shaft 102 is controlled by a clutch shifting lever 104.,

The built up web is delivered from winder 7 to the conveyor formed by belts 59 which conveyor has already been described. The gap between the belt 18 of winder 7 and the belts 59 is bridged by a plate or table 105 which supports the web and prevents tensioning thereof. The remainder of the treatment of this web is the same as that already described with reference to the web delivered by the winder 8.

While I have described what I believe to be the best embodiment of my invention, 1 do not wish to be limited to the embodiment shown, but what I- desire to cover by Letters Patent is set forth in the appended claims.

I claim:

1. In a machine for forming soft absorbent pad webs, in combination, means for delivering a web, and a winder'for building up a multiple ply web while maintaining the several plies loose and uncompressed comprising a winding conveyor including an endless belt running upon spaced rollers, and a supporting conveyor impositively supporting the multiple ply web opposite said end rollers but positively supporting it at other points.

2. In a machine for forming soft absorbent pad webs, in combination, means for delivering a web, a winder for building up a multiple ply web comprising an endless belt running upon spaced rollers and means for supporting the belt substantially continually livering a web, a winder for building up a multiple ply web comprising an endless belt running upon spaced rollers and a supporting conveyor therefor.

4. In a machine for forming soft absorbent pad webs, in combination, means for delivering a web, a winder for building up a multiple ply web comprising an endless belt running upon spaced rollers and tables sup porting the stretches of a winder belt between the rollers.

5. In a machine for forming so it absorbent pad webs, in combination, means for delivering a web, and a winder for building up a multiple ply web comprising an endless belt running upon spaced rollers, and tables supporting the stretches of the winder belt between the rollers, said tables each comprising a succession of supporting plates luwing narrow gaps therebetween, and supporting rollers in said gaps.

G. In a machine for forming soft absorbent pad webs, in combination, means for delivering a web, and a winder for building up a multiple ply web comprising an endless belt running upon spaced rollers, and tables supporting the stretches of the winder belt between the rollers, said tables each comprising a succession of supporting plates having narrow gaps threbetween, and supporting rollers in said gaps, said supporting rollers protruding slightly above the plane of the I plates;

7. In a machine for forming soft absorbent pad webs, in combination, means for delivering a web, a winder for building up a multiple ply web while maintaining the several plies loose and uncompressed comprising an endless belt running upon spaced rollers, and means for causing the web to be delivered to said winder over a portion of the periphery of one of the rollers so that it will be fed in at a slightly higher linear speed than that of the belt, and a supporting conveyor guiding the lower stretch of such endless belt in a substantially rectilinear path but disposed to apply no direct compression force to the multiple ply web.

8. In a machine for forming soft absorbent pad webs, in combination, means for delivering a web, a winder for building up a multiple ply web while maintaining the several plies loose and uncompressed comprising a nendless belt running upon spaced rollers, means for causing the Web to be fed onto the winders at a slightly greater speed than the linear speed of the winder, and means for positively supporting the lower stretch of said belt through the multiple ply web at points between said spaced rollers but not in directly opposed relation to them.

9. In a machine for forming soft absorbent webs, in combination, means for delivering a web, means for operating on the built up pad web, and a plurality of winders interposed between the w'eb delivering means, and said operating means, said winders being disposed in parallel relation and adapted to wind a pad web alternatively and to deliver to the said operating means alternatively.

10. In a machine for forming soft absorbent webs, in combination, means delivering a web, means for operating on the built up pad web, and a plurality of winders interposed between the web delivering means and said operating means, said winders being disposed in parallel relation and adapted to wind a pad web alternatively and to deliver to said operating means alternatively, said winders each comprising an endless belt running on end rollers and being disposed one above the other.

11. In a machine for forn'iing soft absorbent webs, in combination, means for delivering a web, means for operating on the built up pad web, and a plurality of winders interposed between the web delivering means and said operating means, said winders being disposed in parallel relation and adapted to wind a pad web alternatively and to deliver to said operating means alternatively, and conveying mechanism adapted to carry the web from either winder to said operating means.

12. In a machine for forming soft absorbent webs, in combination, means for delivering a web, means for operating on the built up pad web, and a plurality of winders interposed between the web delivering means and said operating means, said winders being disposed in parallel relation and adapted to wind a pad web alternatively and to deliver to said operating means alternatively, said winders each comprising an endless belt running on end rollers and being disposed one above the other, and conveying mechanism adapted to carry the web from either winder to said operating means comprising an inclined conveyor running upward from a point adjacent the lower winder and a support substantially bridging the gap between the upper winder and said conveyer.

In testimony whereof I have aflixed my signature to this specification.

HARRISON H. WILLIAMS.

CERTIFICATE on CORRECTION.

Patent No. 1,842,889. Granted January 26, 1932, to HARRISON 'R. 'wILLlAMsm it is hereby certified that error'appears in the printed specification of the above numbered patent requiring correction as follows: Page 3, linel25, claim 2,.for the word "continually" read continuously; and that the said Letters'Patent should be read with this correction therein-that the same may conform to the record of the case in the Patent Office. I

Signed andsealed this 17th day of May, A.- D. 1932;

' M. J. Moore, (Seal) Acting Commissioner of Patents.