US1887143A - Paper making apparatus - Google Patents

Description

1932- w. A. N. SPENCER ET AL 1,387,143

EAPER MAKING APPARATUS Original Filed April 5, 1930 2 Sheets-Sheet 1 Fi l INVENTOR. Wiia'azrz fif'fywzzcg/ and] y V/zZ&rf .1 5 6/1557:

' ATTORNEY.

Nov. 8, 1932. w. A. N. SPENCER ET AL 1,337,143

PAPER MAKING APPARATUS Original .Filed April 5, 1930 2 Sheets-Sheet 2 1% I INVENTOR.

Wz fZz'a/n AN m/ 44/ ATTORNEY.

Patented Nov. 8, 1932 i i UNITED STATESj PATEN-T OFFICE WILLIAI'L N: SPENCER AND WJZIJBEBT A. SPENCEB, OF LEE, MASSACHUSETTS PLPER'ILKIN G APPARATUS Application filed April 5,1980, Serial No. 441,806. Renewed larch 81, 1932.

This invention relates to improvements in A drum 6 ofspecial form is carried by a paper making apparatus and is directed more shaft 8 rotatable in bearings such as 10 at opparticularly to improvements in apparatus posite sides of the tank 2 and for rotation for making individual sheets of paper havat the desired speed the shaft may be driven 5 ing deckle edges. by a belt engaging a pulley 12 thereon. Of w It has been the ractice to make sheets of course the shaft and drum may be rotated by paper having dec leedges by hand mold any other means desired. methods, but this 'haszbeen expensive and Instead of a paper making drum of usual therefore objectionable. form we provide a drum made up of a plu- It has been attempted in order to overcome rality of hollow platens 14 which are sup-' 5; this objection to lay separating strips across ported by pipe supports 16 from a central dandy rolls of paper making. apparatusso as hub 18. The pipes 16 are in communication to provide separate sheets, but the edges prowith axial passageways '19 through the hubv duced were at best no more than imitation which are 0 an at their outerends at one ,deckle edges. .side of the ub, as onthe'left. Theopen 50 According tothisinvention we provide apends of the passageways, may be called ports.. paratus'which is adapted for continuous op- A flange 20 abuts the-left hand side of eration and which produces separate sheets the hub and is rotatably adjustable relative each having deokle edges the same as those of to the axis of rotation of the shaft. A deg hand made paper. pending portion 21 thereof is provided with 55 The. novel features and advantagesof the a slot 22 for a bolt 24 threaded into a disc invention will be observed from the follow- 26 carried by the left-hand bearing 10.

ing description thereof which in the format A chamber 28 circumferentially disposed present preferred is illustrated in the accomabout the flange 20 has an open side adjay:- panying drawings, in which: cent the end of the hub, se -that as the hub 70 Fig. 1 is a side elevational view of a paper rotates the ports or open ends of the passagemaking apparatus embodying the novel. feaways 19 register with the chamber and move tures of the invention, with parts in section along the same and then out of registration for clearness. therewith.

:m Fig. 2 is a partial end and sectional eleva- A second chamber 30'is provided at the 76 tional view of the apparatus'shown in Fig. 1 upper side'of the flange and-the passageways with parts broken away for clearness, and 19 may register therewith as with chamber Fig. 3 is a partial perspective vew of one of 28. By means of a pipe 29 the chamber 28 the drum platens with certain parts broken may be connected to a suction apparatus such 3 away for clearness. as a vacuum pump so that while the drum is 00 Referring to the drawings the invention in rotation one after the other of the paswill now be described in detail. sageways 19 may register with the chamber In Fig. 1 there is shown a paperiiakin'g whereby the platens are successively subjectmachine with which the-features of the ined to the suction action. vention are associated. A't ank 2 for con The chamber 30 is provided with a pipe 861 taining paper making material or stufi re- 32 which may be connected to air -su plyceives a supply thereof through an inlet 4. ing means whereby air delivered to thee am- The paper making stuff will as usual include her will be delivered into the platens accordwater having in suspension fibers for forming ingly as the ports rotate into registration the paper sheets. therewith.

The upper open sides of the platens are carried thereby around and upwardly becovered by a structure on which sheets of tween the rolls 52 and 62 and along between paper may be formed. Preferably a plate the felts. Air delivered to the platens as the 40 which is perforated as shown is secured passageways register with chamber 30 tands to the upper sides of the platens. This plate to cause the sheets on the platens to beblown To is relatively thin but capable of supporting therefrom so that either by. the action of a lower screen cloth element 42 and an upper either of the suction or air or both the sheets paper making screen cloth element 44. The are caused to adhere to the felt and are therelower element 42 is preferably of coarser mesh by removed from the platens.

than the upper element for the following The rolls 54 and 64, 56 and 66, 58 and 68 75 U reasons. The upper relatively fine mesh eleare arranged to function as squeeze rolls and ment is suitable for forming paper, while press the felts together so as to squeeze wathe lower element is coarser to space the upter from the sheets between the felts. per element from the plate so that suction is One end of an apron or felt of a drying apdistributed throughout the entire surface of paratus is represented at 80 which is sup- 80 the upper making element. ported by a roll 82. This apron for re- The supporting plate is secured in any ceiving sheets delivered thereto by the felts suitable manner to the platen while the wire 50 and 51 and will carry the sheets to the apcloth elements may be secured thereto by paratus (not shown) for a drying operation.

soldering along the marginal edges thereof. To insure thetransfer of sheets from felts As the drum rotates in the direction of the 50 and 51 to the apron 80 the following is arrow one platen after the other becomes provided: A suction box 84 having a persubmerged in the paper making material forated face is disposed above the lower run within the tank. As platens becomes subof the upper felt. As sheets are carried formerged in the paper making material the wardly by the felts the sheets are urged by 90 passageway in communication with the suction against the upper felt so that they platens rotates into registration with the sucare carried by the upper felt along and over tion chamber 28 so that the platen is under the apron 80. As the sheets pass by the suethe influence of the suction. By this action tion box 84 they may drop onto the apron the fibersof the paper making materialare 80 and be carried thereby into the drying drawn onto the making screen of the platen. apparatus.

course various speeds may be employed The box 84 may be connected by a pipe 86 for the drum so that various amounts of mato any suitable form of suction apparatus. terial maybe drawn onto the platen. When To facilitate the dividing of the sheets the platens rotate out of the paper making longitudinally as they are formed on the 100 material the passageways 19 will rotate in platens a pipe 75 is provided which has a register with the chamber 28 for a time so nozzle 77 at the inner end thereof. This or that by the suction the sheet on the face of severalof them may be arranged so that air the platen is freed of water to considerable or water delivered thereto will be directed 4o extent leaving a film of paper making fibers onto the sheets on the platens as they are on the platen. As the passageways or ports carried therepast. By the action thereof the pass out of register with the suction chamber sheet forming material is removed from the 28 and into register with air chamber 30 air platen in a comparatively narrow strip or pressure may be delivered to the platen which strips across the sheet. This divides the Will more or less according to the degree of sheet and provides uneven tapering deckle no pressure tend to force the sheet from ofi the edges. making screen of the platen, As another feature of the invention the An endless apron or belt preferably of roll 52 may be hollow and have a perforated felt is provided which may be called a wet surface so that it may be acted upon by suc- 50 or lower felt.- This is supported and driven tion and cause the sheets to stick to the felt. by rolls 52, 54, 56, 58 and 60 as shown. This is desirable in some cases to co-operate 11 upper endless apron 51 of felt or the with the suction boxes and introduction of like is supported and driven by rolls 62, 64, air into the platens to bring about the trans- 66, 68 and 70, all as shown. fer of sheets from the platens onto the felt.

suction box 72 having a lower perfo- When it is desired to divide the sheets on rated face is disposed over the lower run of the platens transversely or longitudinally inthe felt 50 and is connected by a pipe 74 to to a plurality of smaller size sheets it may be any suitable suction means such as a pump. accomplished by closing up the mesh in similar suction box 73 having a pipe 74 the making screen as by applying solder connected thereto is disposed at the right of thereto as shown at 46 in Fig. 3.

As the drum rotates and the sheets on the su mer e the platens one after the other in platens contact with the wet felt 50 the acthe paper ma ring material in the tank. At

tion of the suction boxes 72 and 73 tends to the proper time the ports of the passageways cause the sheets to stick to the felt and be rotate into register with the chamber so that the suction brings about the depositing of fibers on the platens. 'As the platens rotate out of the paper making material so as to bring the sheets on the faces thereof into engagement with the felt 50 the sheets tend to stick or adhere thereto so that they are removed from the platens and carried between the felts 50 and 51.

The suction box or boxes assists in the removal of the sheets from the platens and when desired air pressure may be supplied to chamber 30 so that as the ports register therewith air is delivered to the underside of the sheets which will tend to force them from the platens 'onto the felt.v

As the sheets are carried forwardly by the felts they are subjected to the action of the squeeze rolls to free them of water in so far as is possible and finally they are delivered onto the apron of the drying apparatus. In order that the sheets will be carried by the upper felt across the gap between the lower felt and apron they are suctionally pulled against the upper felt b the suction box 84.

The drum formed by separate platens each of which is capable of forming separate sheets facilitates the production of separate and unjoined sheets. All edges of each of the sheets are of tapering thickness and more or less uneven to give the deckle effect desired and by continuous rotation of the drum the successive sheets are formed and delivered one after the other-to the continuously moving felts. In this way it is possible to obtain the production equal to that of continuous web making apparatus, while the sheets produced are equal to those made by the prior art hand method.

Various changes may be made in the form of the apparatus without departing from the s irit and scope of the invention and there ore we prefer to be limited by the appended claims rather than by the foregoing description.

What we claim is:

1. In an apparatus for making separate sheets of deckle edge paper comprising, a drum having separate platens carried by a central rotatable hub, the said hub and platens having intercommunicating passage ways and a flange non-rotatable relative to said hub having a chamber. with which the passageways of the hub may register.

2. In an apparatus for making separate sheets of deckle edge paper comprising, a drum having separate platens removably carried by a central rotatable hub, a flange nonrotatable at one end of said hub provided with a chamber open at a side adjacent said hub, the said hub and platens having intercommunicating passageways which may register with said chamber as the hub rotates.

3. In an apparatus for making separate sheets of deckle edge paper comprising, a

central rotatable hub, a plurality of hollow platens dis osed radially of said hub havin curved sur aces which form the periphery o a drum, the surfaces comprising paper making screen cloth.

4. In an a paratus for making separate sheets of dec le edge paper comprisin a central rotatable hub, a plurality of be low platens disposed radially of said hub havin curved surfaces which form the periphery 0 a drum, the surfaces comprising paper making screen cloth, a non-rotatable flange at one end of said drum having a suction chamber and the hub provided with passageways in communication with the platens and adapted for registration with the chamber of the flange as the hub rotates.

5. In an apparatus for makingseparatesheets of deckle edge paper comprising,a rotatable hub, hollow supports extending radially thereof, hollow platens on said sup orts, the outer surfaces of said platens eing curved concentrically relative to the axis of rotation of said hub and formed of wire screen cloth.

6. In an apparatusfor making separate sheets of deckle edge pa er comprising, a rotatable hub provided with axial passageways opening at one end thereof, "a non-rotatable flange at said end of the hub provided with separate suction and air chambers having an open side adjacent said hub, hollow supports extending radially of said hub, the

said hub provided with passageways connecting said hollow supports and first-named passageways and hollow platens carried by said supports in communication with said passageways and having curved paper form ing surfaces to provide a cylindrical surface ploncentric with the axis of rotation of the 7. In an apparatus for making separate sheets of deckle edge paper comprising, a drum including separate platens having curved surfaces which are concentric with respect to the axis of rotation of the drum, an endless lower felt supported by a plurality of rolls so that a lower run thereof contacts with the curved surfaces of the platens as they are rotated by the hub, an endless upper felt supported by a plurality of rolls so that a lower run thereof co-operates with the upper run of the lower felt for receiving sheets from the platens therebetween.

8. In an apparatus for making separate sheets of deckle edge paper comprising, a drum including separate platens havin. curved surfaces which are concentric wit respect to the axis of rotation of the drum,

van endless lower felt supported by a plurality of rolls so that a lowerrrunthereof contacts with the curved surfaces of the platens as they are rotated by the hub, an endless upper felt supported by a plurality of rolls so that a lower run thereof co-operates with the upper run of the lower felt for receiving sheets from the laten therebetween and a suction box over t 1e lower run of the lower felt disposed to act on sheets on the platens to draw them towards said lower felt.

'9. In an apparatus for making separate sheets of deckle edge paper comprisingy-a -drum including separate sheet forming platens, a lower endless felt supported by a plurality of rolls so that its lower run contacts with outer paper forming surfaces of said platens, an upper endless felt supported by a plurality of rolls with its lower run in contact with the upper run of said lower felt and extending beyond the said lower run, a third felt below the lower run of the upper felt and adjacent the lower felt and a suction box over the lower run of the upper felt extendingibeyond adjacent ends of said lower and third felt.

10. In an apparatus for making separate sheets of'deckle edge paper comprising, a

drum including separate platens having concentrically disposed sheet forming surfaces, a suction box above said drum having a suction side conforming to the contour of the surfaces of the platens, a lower endless felt 1 sheets rotatable supported by a plurality of rolls having its lower run extending between said suction box and said drum, an upper endless felt supported by a plurality of rolls having its lower run in contact with the upper run of the lower felt and at a point away from said drum extendin beyond the upper run of the lower'felt, a drier felt having a receiving end disposed below the extending part of the upper felt and adjacent the lower felt and a suction box above the lower run of the upper felt overlapping adjacent portions of the",

lower and drier felt.

11. In an apparatus for making separate sheets of deckle edge paper comprising, a platen havingan open upper side, a paper forming surface thereover including a plurality of superposed members having openin of different areas therethrough.

12. 11 an apparatus for making separate sheets of deckle edge paper comprising, a platen having end and side walls, a perforated plate removably afiixed to the upper sides of the walls and a plurality of superposed'screen cloth members of different mesh over the perforations of said plate.

18. In an apparatus-for making separate of deckle edge paper comprising, a rotatable drum having separate platens provided with paper forming peripheral surfaces, a roll thereabove, a felt movable between said roll and surfaces,.the said roll being hollow and having a perforated wall and a suction box having a perforated side 7 against said belt adjacent said roll.

14. In an apparatus for making separate sheets of deckle edge paper comprising, a drum having separate platens provided with paper making surfaces, a suction roll thereabove, a felt movable between said roll and surfaces of said platens, and a suction box adjacent said roll having a perforated face disposed above said felt.

15. In paper making apparatus comprising in combination, a drum including separate platens having perforated paper forming surfaces and means associated with the surface of at least one platen closing the perforations of the surface thereof along an irregular strip to form separate paper forming surfaces.

- 16. In apparatus for making paper, comprising in combination, a rotatable drum including a plurality of separate platens each having curved paper making surfaces and an endless lower felt supported by a plurality of rolls so that a lower run contacts with the curved surfaces of the platens, one of said rolls being located at a side of said drum for guiding said felt into contact with said drum.

17. In apparatus for making paper comprising in combination, a rotatable drum including a plurality of separate platens each having curved aper making surfaces and an endless lower felt supported by a plurality of rolls so that a lower run contacts with the curved surfaces of the platens, one of said rolls being located at a side of said drum for guiding said felt into contact with said drum, and a nozzle adjacent the drum for directing a fluid onto the surface of said drum.

18. In an apparatus for making paper comprising in combination, a rotatable drum including separate platens having curved surfaces, upper and lower endless felts supported by rolls so that a lower run of the lower felt contacts with the surfaces of the platens and the upper and lower runs of the lower and upper felts are superposed to receive therebetween sheets from said platens and a pair of press rolls acting on said superposed runs.

19. In apparatus for making paper comprising in combination, a rotatable drum including separate paper forming platens, an endless felt supported by rolls so that a part thereof contacts with the surface of said platens and a run thereof extends away from said drum, a part of another felt adjacent the end of said run and a suction box above said end of the run and said part of said other felt.

20. In apparatus for making paper comprising in combination, a rotatable drum having paper making surfaces, :1 lower endless felt supported by a plurality of rolls so that a lower run thereof contac s with the surface of the drum,.an upper'endless felt supported by a plurality of rolls with its lower run in contact with the upper run 'ofthe lower felt, a part of a third felt adjacent the upper run of the lower felt and a suction box above adjacent portions of said lower felt and said part of the third felt.

21. In apparatus for making paper comprising in combination, a rotatable drum including a plurality of separate platens each having curved paper making surfaces and an endless felt supported that a lower run thereof contacts with the curved surfaces of the platens, and another felt having a portion disposed in superposed relation on the first-named felt whereby paper formed on the platen will be received by and between the superposed portion of the felt.

In testimony whereof we aflix our signatures.

WILLIAM A. N. SPENCER.

WILBERT A. SPENCER.

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