US1637240A - Method and machine for making paper - Google Patents

Description

1,637,240- July 26 19.27 c. v. PROCTOR METHOD AND MACHINE FOR MAKING PAPER Filed Sept. 2, 1926 Patented July 26, 1927.

PATENT OFFICE.`

CHARLES V. PROCTOR, OF BIRON, WISCONSIN.

METHOD AND MACHINE FOR MAKING PAPER.

Application led September 2, 1926. Serial No. 133,20l.

rated from the press roll, and an apparatus` .tor use in said method which is applicable to the press roll and all other phases of the machine where such removal is desired.

This invention further comprehends the process ofv i'orining a narrow end ory lead strip of the moving paper web and tearing it with a sliding blade in the nature of a doctor. held against the roll to which the strip adheres, which is shoved across and through the path of the web or strip laterally to its direction ol motion in Such a manner that as the stri J progresses the blade tears it and dellects the end portions through the positioning of the blade toward the rfelt so Athat it 'will proceed on the felt to the next roller,

-The invention further coin reheiids the provision of an ap aratus inc uding means attached to a suitab e support and projecting in proximityr to the roll from which the lead is to be stripped or cut with suitable adjustable means mounted on said projecting means `which is adapted to slidahlvv receive a cutting member or doctor adapted for eulgagement with the periphery of the roll and. 'movement transversely to the direction of travel of the lead for cutting the lead from the surface ot' the roll and Adirecting it. toward the felt in such a manner that the doctor may he applied or removed when desired after the apparatus is once setand adjusted on the machine'. The invention comprehends numerous other objects residing inthe particular manner at carrying out the method in constructing and operating' the apparatus, all of whichare more particularly pointed out in the following detailed description and claims 'ill directed to a preferred forni ot' the invention, it living' understood however that rari- Aons changes in the size, shape, und 'arrangenient ot parts may be made without departing from the spirit sind scope of the invention as herein set forth.

In the drawing forming plieation: Figure l is a side elevational View of the improved apparatus for carrying out, the operation on the paper .machine forming the subject matter of this invention which also illustrates the felt and the presser :rolls with which the device is shovvin associated for convenience in illustration.

Figure is a plan View of the apparatus shovvn in Figure 1, with the rolls omitted.

Figure 3 is a perspective of the knife member used in connection with this invention which is similar to a doctor.

part of this ap- The apparatus and process of this inven i" tion is designed more particularly for use in conjunction with the press rolls of a paper making machine of the Fourdrinier type, but it is to be understood that .it may be associated with any roll of a paper making Inaehine where it is desired to remove the strip.

The felt of the paper machine is indicated at l, and the press rolls at 2, which are constructed in the usual and Well known inanner, while 3 indicates a suitable support forming part of the paper machine structure on which this invention isrnounted.

A suitable arm member d is attached at one end to the support 3 and at its opposite end projects in otl'set relation as shown in Figure l toward the periphery oit the upper press roll '2 in spaced relation above the telt l. A supporting plate 5 is formed at its rear edge with an upstanding flange 6 as shown in Figure l and Vadjacent which said plate is formed with slotted portion 7 to receive suitable securing means 8 adapted to adjustabiy secure the plate in eniber on the free end of the arm 4 so that it may be moved toward or away from the periphery ot the press roll 2. The plate member 5 is formed with a rib lprojecting upwardly from its central portion as indicated at 9 and adapted to form a guide Way for the flanged edge 10 of the cutter blade 1l having the opposite free edge thereof formed with a sharpened beveled edge l2, A pair ol 4bearing brackets 13 are formed with lateral extensions 14e having bearing engagement with the inner edge of the flange l0 and the upper face of the eut-ter blade ll as shown in Figure l,

while the central portions are formed withk openings for removing the fitting on the studs 15 projectingr upwardly from the rib 9 andY whichreceives threadedly a suitable nut adapted to secure the bearing bracket in position to properly tension the cutter member and bearing contact.Y between the ends 14 and the plate member 5. The opposite ends of the bearing brackets extend through notches in the upper edge of the anffe 6 on the plate 5 in order that said brac ets will be held in rigid parallel relation durin\rr the operation of the slidable cutter mem r 11. In this way adjustment of the bearing brackets can be made to compensate for wear and retain the arts in the proper substantially rigid associated re lation and yet. permitting sliding movement of the cutter plate 11. This cutter member 11 is slidable across the plate 5 in a direction -transversely to the travel of the felt 1 in order to carry out the method of separating the lead strips from the paper. web and di recting it toward the felt l in a manner which will be presently described. A suitable handle 16 is secured to the end of the blade member 12 and projects outwardly beyond the ends as shown in Figure 3 in order to provide suitable means by which cutter members may be suitably and manually manipulated in carrying out the method of this invention.

In the rear of the stripping device in the direction of movement of the felt 1 is positioned a presser roller 17 which is journaled in the arms 18 at one end thereof and adapted for riding on the felt 1 for engagement with the strip separated from the press roll 2 bv the cutter member back onto the felt so that the same will travel along in the usual Way with this felt. The upper ends of the arms 18 are pivotally eoiiliected to the end of arms 19 which are in turn pivotally connected at their opposite ends to the supporting brackets 20 mounted on the supportl 3. These links 18 and 19 which ale arranged at o posite ends of the rollers 17 as shown in igure 2 form toggle connections for the roller with this support 3 in which the joint is normally broken as shown in Figure 1 and through the operation of the lensioned coil spring 21 normally serves to operate the arms 18 and 19 and force the roller 17 toward the felt 1. The operation of this presser roller 17 is to engage the strip as it leaves the press roll 2 through the operation of the cutter member 11 so that the roller will ride over the strip separated from the press roll amlforce it back into intimate contact with the felt 1.

This` apparatus is applied to a paper machine as shown in Figures 1 and 2 und when the machine is started up for making the web of paper, the cutteil member 11 is inserted between the rib 9 on plate 5 and across the face of the upper press roll 2, so as to engage the web of paper passing between the press rolls and adhering to the upper roll 2 and cut and Separate a strip along one edge of the web therefrom on the face of the press roll 2 to form a lead strip and at the time of separating this lead strip from the web of paper to direct the same downwardlyin the se )arating operation toward the felt 1 as in ica'ted in dotted lines in Figure 2 at 22 so that the strip will return by its own weight and by gravity to the felt 1 of the paper machine and pass onwardly therewith. Ihe width ofV the strip may be determined by the adjustment ofthe blade 11 through its insertion and movement across the face of the press roll 2 at right angles to the direction of travel of the strip and in this way separate and form the desired character of lead strip in the machine. I

As this cuter blade actually cuts the strip from the main web of paper on the press roll it separates the strip from the press roll' by extending between the face of the roll and the inner face of the strip and directs the strip outwardly from the face of the press roll and downwardly through the cooperation of the action of gravity therewith -until the strip returns to the felt 1. The presser roller 17 then engagesethe lead stri and presses the same in hrm contact witi the felt 1. and in so doing smooths out the wrinkles formed inthe lead strip so that a substantially even and smooth lead strip is laid on said felt.

From the above description it will be readily understood that a new process has been provided by this statute for forming a lead strip in making paper and separating this lea\ strip from the web and the press roll or other roll with which the process and apparatus is employed so'that the lead strip is returned to the felt and suitably pressed if desired through the operation of the roller 1T.

Having thus described the nven'tiomwhat Iclaim as new and desire to secure by Letters Patent is 1. In combination with a paper making machine having a web and rolls engaging said web a support, a supporting arm rojecting from said su port, a cutter bade slidably and adjustaiily mounted on said supportin arm for contact with the periphery o said roll in a predetermined manner, a presser roller, and means movably and rotatably sup orting said presser roller on said support or engagement with said web to press a paper strip into firm engagement with said web.

2. That improvement in the'art of makin paper on a paper making machine, whic consists in directing a blade commonly, known as a. doctor across the line of movement of a web of paperI and an adjacent nar' lill IBG

separating said stri from said pertnntl ilelecting it with tie nul ot gravity und.

its own momentum toward the felt; und

finally engaging and pressing the saidntrip into Contact with the felt so 'that it will continue thriving with the said felt.

3. An attachment for n paper making ma.n chine comprising'a supporting arm, n plate mounted on the arm and acljnstahle'lengtli wise of said ann, a guide rib nn Suid plate, n blade having a laterally extending flange formed on one edge mounted on the plate with the tlange engaginu said rib, said blade being sliilnble on the plate, and clamping means ndjnstablg secnreill'o the plate :1nd engaging the ndnpted to retain the blade on the plate and prnvide n tension thereon.

An attachment for n paper mnking inneiline, comprising n supporting arm, n plate mounted on sniil arm for lengthwise adjustment, a blnfle slitlnbly mounted 0n the pl'ite, ani ineens for retaining the blade assembled with the plate adjustable to apply a tension between the blade and plate tor governing the sliding movement.

In testimony whereof I nllix my signature.

CHARLES V. PROCTOR.

lade und flange thereon

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