US1203008A

US1203008A - Paper-making process.

Info

Publication number: US1203008A
Application number: US10831216A
Authority: US
Inventors: Daniel Kelleher
Original assignee: Hinde & Dauch Paper Co
Current assignee: Hinde & Dauch Paper Co
Priority date: 1916-07-10
Filing date: 1916-07-10
Publication date: 1916-10-31
Anticipated expiration: 1933-10-31

Description

D KEMEHER. PAW?? WHW Awucfmms min um Attorney ma @ma e ww. F1 #1w j 6 m d M Wit@ ess Lh, f /m' /Qry D. KELLEHER. PAPER MAKING PROCESS. APPLICATION FILED JULY :0. 191s.

Patented om. 31, 1916.

4 SHEETS-SHEET 2 w nl O. e wmcm be bw @Vnt lJn .A @I w l e m 0 by. 90A/MAM:

Witness:

D. KELLEHER. PAPER MAKING PROCESS. Amlcmon m50 :uw 10. :91s.

Patented Oct. 31, 1916.

4 SHEETS-SHEET 4.

0eme/ [fel/eher Inventor 5, Attorney Witness UNITEU STAT I'ATENT OFFICE.

DANIEL KELLEHER, 0F SANDUSKY, GEIQ, ASSIG-IAIOR TO HINDE da DAUCH,PAPER COMPANY, UF SANDUSKY, OHIO.

To all `whom it may concern Be it known that I, DANIEL KELLEHER, a citizen of the United States, residing at Sandusky, Erie county, Ohio, have invented certain new and useful Inipro ements in Paper-Making Processes, of whic the followingis a. specication.

This invention, pertaining te paperrnelring processes, relates to process improvements by means of which e sheet of peper may be formed of desired thickness and with its fibers laid in an advantageous manner` the improved process also lending itself to the formation of seamless paper articles.

It is believed that in;T improved process will be best understood by first describing the construction and operation of an exemplifying device for executing the-process, and I have chosen for illustration, a mw chinefor forming seamless paper cups. In usual processes for producing peper cups, a sheet of peper has been formed by usual peper-making process, the sheet being later cut up into proper blanks leind seemed up by adhesive methods. In my improved process such an article es a paper cu p cnn be readily produced direct from pulp solution, und without .seams in the article.

In the exeinplifying druiings, Figure 1 is a diametrical section of a cupforrning screen, and immediate accessories. in the plane of line a, of Figs. 5, 3. 8 and 1): Fig. E2 a diametrical section of the inner wnll of the vacuunbpoclret in the plane of line a of Figs. 3, 5, 8 and l0: Fig. 3 a. bottoni view of the inner ivnll of the vucuumpoclret corresponding With the lower ond of the vecu.- uni-pocket as it appears 1n Fig. l.: Figzl e vertlcal section of the vat und its contarncd mechanism, in, the plane of line .fr of Figs. 3, 5, 8, 9 and l0: Fig. 5 an elevation of the cuphforming screen and its carrier, this view being a top View when considering Figs. 1, 6 and 10. and e bottom view When consider in Fig. 4. and e horizontal view from the le t when consideriiner Fig. 8: Fig. tra side elevation of the cup-forming screen and its carrier: Fig. 7 en end view of the vnlvemechanism of thc shaft ol the carrier of the vaciumrpocket: Fig- 8 e. vericni section of the vet end its contained mechanisrn in the plane oi line c of Fig. lz Fig. 9 an elevetion oi the valve controlling the vacuum in the eiwit of the vacuum-pocket carrier: Fig.

` specificati on of Letters Patent.

Application led July 1G, 191B.

Patented Oct. 31, 1916. serial Nn. 108,312.

lil en end elevation of the carrier of the cup forming screen: and Fig. l1 a vertical Vsection of the exemplifying machine in the plane of line c of Fig. 4.

In the drawings, see Figs. 1, 2 and 3, 1, indicates a, screen, illustrated es of frusto conicel form suited for the formation Within it of e paper cup: 2, a carrier for this screen, the open end of thenscreen, which is formed of an outer wire cloth member and an inner wire cloth member of liner mesh, being soldered to e. ring secured tothe carrier: 3, a, vacuum cuip surrounding the screen: 4, an inner Well or the vacuum cup, the inner surface of this inner wall coming close to but free from the exterior of the screen: 5, n carrier for the vacuum-cup, which vacuum-cup is capable of rotation Within its carrier: 6, a packing carried by the carrier 5 of the vacuum-pocket, around the top of the screen, and adapted to be engaged by the carrier 2 of the screen: 7, a. suction-pipe connected with the vacuum-pocket: 8, the vacum-space Within the vacuum-pocket, between its inner and outer walls, the suction-pipe connecting with this vacuum space: 9, a narrow slot in the floor of the inner Wall of the vacuum-` pocket. this slot being diagonally arranged in the floor in such manner, preferably, as to' trail so that. es the vacuum-pocket is rotated the upper portion of the slot is to the rear o? the lower portion: and 10, e narrow slot in the inner wall of the vacuum-pocket. this slot extending longitudinally of the wall and amV oblique to the axis of the vacuum-pocket in such manner that, es the vacuum (pocket rotetes, one end of the slot will be singularly in advance of the other end of the slot.

Looking at Figs. l, 2 and 3, let it be assumed that screen-carrier 2 with the screen is entirelyv away from the vacuum-pocket sind held in the left hand, and assume that the carrier of the vacuum-pocket is held in the right hand and that the vacuum spare 8 is under silctnlfrom pipe 7. If, now. by proper manipulation, the screen be poked down into the vacuum-pocket andv pressed home against packing 6, the suction will not through slots 9 end lO and through the screen and act on any material which may he within the screen. New, having the parts in the assumed o5 sition and condition, let the structure un er consideration be immersed in a pulp S0111- tioni The solution will fill the screen, and,

lioo

' which the interior o the screen,

efwhose exterior` form corresponds with if the vacuum-pocket be rotated, the suctionslots 9 and `10 will produce a zone of suction traveling around the exterior ot the screen and around under the This suction manifestly tends to withdraw water from the solution and to cause fibers of the solution toV hu'g the interior of the screen. The continued rotation of the vacuum-pocket causes additional deposits of pulp upon the interior of the screen, and this will hold good until the accumulating deposits of pulp upon the interior of the screen have produced a thickness of paper sheet through suction cannot act. Owing to the trailing singularity of 9 and 10 the suction acts in what might be called a dragging manner upon the exterior of the screen,thus facilitating the laying of the fibers around the interior of the screen. lf, however, while the structure is immersed in the pulp-solution, and the fibers are being laid around the interior of the screen, the degree of immersion of the structure within the pulpsolution be repetitively varied then, manifestly, the fibers instead of being strung out in a purel circumferential manner upon the will be strung out in a helicoidal course, an the fibers of one heliccidal course will cross that of the preceding course, the result being that the sheet of aper formed within the screen is compose argely of fibers crossing each other, as distinguished from fibers laid strictly parallel with each other. If, now, the structure be removed from the pulp-solution, and the two carriers with their immediate parts be separated from each solution be emptied from ther; screen, the screen will contain a sheet oi wet paper t e interior form of the screen. If the screen with its paper content be now subjected to drying air the paper will become dry and the article will shrink and may readily leave the screen. In the above description of the mode of operation of the exemplifying devices illustrated in Fi s. 1, 2 and 3, it has been assumed that the evices would be operated manually.

Description will now be given of an exemplifying machine for giving the proper motion to the parts which have been referred to.

Continuing with the drawings, 11, indicates a vat adapted to have maintained therein a body of pulp-solution, the carrier 5 of the vacuum-pocket being in the form of a drum mounted on a shaft journaled in the vat: 12, a drying conduit extending up from 'the vat to any extent desired, this conduit being illustrated as going upwardly and then horizontally and then downwardly: 13, sprocket-wheels on the shaft on which is mounted the carrier 5 of the vacuumpocket: 14, endless chains engaging these floor of the screen.l

other, and the surplus pulpsprocket-wheels and passing through the drying conduit 12, suitable idle pulleys being provided for the guiding oithese chains, and the screen-carrier 2 being secured to these chains in suoli manner that when the chains bring the screen carrier to the carrier of the vacuum-pocket the screen will enter the pocket: 15, transmitting mechanism for giving continuous motion tothe chains: 16, an air inlet to the upper portion of the drying conduit, vey dehumfied air to the conduit: 17, slides carried by the ends of screen -carrier 2 and ada ted for motion arallel with the axis of t e screen, the chains 14 connecting with the screen-carrier through the medium of these slides: 18, springs tending to urge the slides in a direction away from the open mouth of the screen: 19, rollers carried by the outside of the screen-carrier:'and 20 cam-tracks disposed within the vat and adapted to be engaged by rollers 19 of the screen-carrier, this cam being throated at the point where the drum in the vat.

Looking at Fig. 8, in which the screen and its carrier are assumed as moving toward the drum in the .vat 'the chains move the screen down to near the drum; the rollers 19 of the screen-carrier engage the. entrancethroats of the cams; at this time the vacuumpocket 3 is in position to receive the screen; the cams force the screen into the vacuumpocket and into sealin relationship therewith; the drum, being driven by the chai carries the vacuum-pocket and its associa screen down into and through the pulpsolution; the cams maintain the proper association of the screen with the vacuum-pocket while they are passing through the pulpsolution; when these arts leave the pulpsolution the chains withdraw the screen with its contents wardly then entirely through the the article within the screen becomes dry while passing through the drying and its contained article passes out of the drying conduit and is inverted; the paperi article, having shrunkem. drops out of screen; the screen oes on to again enter the vacuum-pocket an be immersed in the vat to form another paper artioleand so on and on and on.

While the associated vacuum-pocket and screen have been passing through the pulpeolution in the vat, a practical degree of vacuum has been maintained in the vacuumpocket to serve in withdrawing water from the pulp lying against the inner surface of the screen, and the mechanism forumcomplishing this will now be described.`

Continuing with VAthe drawings, 21, indicates a shaft journaled in the walls of the vat and having mounted on it the carrier 5 of the vacuum-pocket, and driven by the the .75 this inlet being adapted to conthe screen-carrier approaches v ,eoi

conduit the screen isa chains 14 as has been described: 22, a passage extending longitudinally through this Shaft and. having connected with it the suction-pipe 7 of the vacuum-pocket: 23, a suction-pipe connected with passage 22 and adapted lor connection with appropriate clevices for producing suction in the pipe: 24,.

a stationary register-valve engaging the open end of .shaft 21 and serving to place passage 22 of the shaft in communication with suctioirpipe 23 at, times and cut the passage oi from communication with the suction-pipe at other times: and 25, a handle by means of which valve 24 may be angularly adjusted.

While the screen and vacuum-pocket are in association with each other, and are passing through the pulp-solution in the vat, the suction is actln on the vacuum-space in the vacuum-poc et and withdrawing water from the layer of pulpsolution on the interior surface of the screen, and when the screen and vacuum-pocket leave the pulpsolution the suction `will be cut ofi' by the register-valve 24, which may be adjusted angularly to suit the level of the pulp-solution in the vat and the time of sealing the screen to and unsealing it from the vacuumpocket.

It may be here stated that, while the illustration shows the carrier 5 as being provided with ;but a single vacuum-pocket, and the chainsgas being provided with but a singlescreen, preferable practice will pro-V vide carrier 5 with a circumferential series of vacuum-pockets and will provide the chains with a series of screens arranged in such manner that successive screens will be broughtI into proper association with successive vacuumpockets, the shaft `21 being rovided with a circumferential series of ongitudinal passages 22 so that suction will be applied to each couple of associated vacuu -pockets and screens as theyppass throng-lli the pulp-solution in the vat.` A

In theprevious description of the apparatus as operated manually, it was stated that whilev the associated screen 4and vacuum-pocket `were immersed in the pulp-so lu tion the vacuum-pocket was given a. motion of rotation and given a. motion of varying degrees of immersion in the pulp-solution. In the automatic machine, as the associated screen and vacuum-pocket enter and pass through and leave the pulp-solution in the vat, the degree of immersion manifestly increases as these parts enter the vat and decrease as they leave the vat. Thy-means by which thertmachines give rotary 'motion to the vacuum-pocket will now be described.

Continuing with the drawings, and havine special reference to Fig. 4, 26, indicates a vel-gear loose on shaft 21: 27, a bevelpinion engaging this gear and fast on suction-pipe 7 of the vacuum-pocket, which suction-pipe is to have a lswivclcd connection with shaft 21: 28, a sprocket-wheel loose on shaft 21 and fast with bevel-gear 2G 29, (Fig. 11) a chain engaging sprocket wheel 28: and 30, transmitting mechanism for giving motion to chain 29.

Begardles of Whether or not drum 5 may be in motion, chain 29 will bring about the rotation of the vacuumpoclret, and, if drum 5 be in motion, this chain will similarly rotate the vacuum-pocket and, as thc transmission mechanism which rotates th'e vacuum-pocket on its axis is idependent of the transmission mechanism which drives chains 14 and the `drum, the speed of rotation of the vacuum-pocket on its axis may be suited to the most advantageous withdrawal of water from the pulp forming the lining of the screen.

It has been explained that the continuous movement of chains 14 carries the screen to and into association with the vacuumpocket, and causes these parts' to pass through the pulp-solution in the vat, and separates the screen with its paper lining from the vacuum-pocket, and carries the screen and its paperlining through the drying conduit to a point of discharge.

Continuing with the drawings (see Fig. 11), 31,indicates the position of the screencarrier and screen when the chains shall have carried them through and out of the drying conduit and shallv have inverted them andf32, the paper article which, by reason of the drying operation in the drA ing conduit, has shrunken and fallen out of the screen.

Claim is not herein made .for the machine set forth in the exemplifying drawings 'as that machine'forms the subject-matter of United States Patent No. 1,179,840, granted April 18th, 1916, on my application.

I claim 1. The improvement in paper-making processes which consists, in subjecting a i screen-surface to a body of pulp-solution stationary relative to the screen, applying suction over a. narrow area to the surface of the screen opposite the surface which is subjected to the pulpsolution, shifting the narrow suction-area relative to the screen and pulp-solution at substantially right angles to the length of the suction-area so that the suction 'acts upon portions of the subjected to the pulp-solution,.shifting the narrow suction-area relative to the screen and pulp-solution at 'substantially right angles to the length of the suction-area so that the suction acts upon portions of the screen successively, causing the suction to act upon the screen in a direction trailing with reference to the direction of shifting of the suction-area, and successively repeating the shifting of the suction area relative to the screen and pulp-solution so that the suction acts repeatedly on the screen and pulp-solution, substantially as set forth.

3. The improvement in paper-makingprocesses which consists, in subjecting a screensurface to a nlp-solution, applying suction to the opposi e side of the screen over a narrow area while the first side of the screen is being subjected to the pulp-solution, shifting the narrow suction-area relative to the screen at substantially right angles to the length of the suction-areasuccessively repeating the subjection of the screen to the pulp-solution and to the suction, removing the -screen with its deposited ulp from ,further subjection to the pulp-so utio`n and to the suction, and subjecting the screen while the deposited pulp is upon it to the action of drying air, whereby fibers 'from the; pulp-solution are drawn to the -iirst screenlsurface vand laid thereon and over each other and Water'is drawn .therefrom through the screen and the pulp-formation is'dried upon the screen, substantially as set forth.

4. The improvement in paper-making processes which consists, in immersing a. screen-surface in a pulp-solution while the opposite surface of the screen is guarded `:trom the pulp-solution, applying suction to the opposite side of the screen overa narrow area while the rst side ofthe screen is being subjected to the pulpsolution, shifting the narrow suction-area relative to the screen at substantially right .angles to the length of the suction-area, successivel repeating the subjection of the screen to t e pulp-solution and the suctiommnd varying the de th of immersion of the screen in the pnl -so ution, whereby fibers from the pulp-so uton nre drawn to the first screen-surface and laid thereon and diagonally over each other and l water is drawn therefrom through the screen, substantially es not forth.

5. The improvement in paper making processes which consists, in subjecting a screen-surface to a body of pulp-solution stationary relative to the screen, applying suction over anarrowarca to the surface of the screen opposite the surface which is subjected to the pulp-solution, shifting the nar row suction-area relative to the screen and pulp-solution at substantially right angles to the vlength of the suction-area so that the suction acts upon portions of the screen successively, and successively repeating the shifting of the suction area relative to the screen and pulp-solution so that the suction acts repeatedly on the screen and pulp-solution and Vcontinuing such action of the suction upon the screen and pulp-solution so long as the screen is subjected to the pulpsolution, substantially as set forth.

6. The improvement in paper-making processes whichconsists, in subjecting one entire surface of an uninterrupted screen to n body of pulp-solution stationary relative to the screen, applying suction over a narrow area to the surface of the screen opposite the surface which is subjected to the pulp-solution, shifting the narrow suction-aren relative to the screen and pulp-solution at substantially right angles to the length of the suction-arearso that the -suetion acts upon all portions of the screen successively, and successively repeating the shifting of the .suction-area relative to the screen andpulp-V solution so that the suction acts repeated y on the screen and pulp-solution, substantially as set forth.

7. The improvement in paperhmaking processes which consists, in lodging a layer of pulp on one surface of a. screen immersed in a pulp-solution, draining moisture from the deposited pulp by means of suction applied at the opposite surface of thescreen, lodging successive layers of pulp on the first layer while the suction through the screen continues, withdrawin the screen and its accumulated pulp from t e solution, applying dr ing air t0 the screen and the eccumullat layer of pul on the screen and removing the resulting ry from the screen, substantially asset forth; DANIEL ELLEHER.

S Fnomun, R. M. TA1-non.

ipaper formation