US912330A - Method of feeding web material. - Google Patents

Description

G. B. STILWELL.

METHOD 0F FEEDING WEB MATERIAL.

APPLIoATIon FILED JUNE 7, 1907.

912,330, Patented Feb.16,19o9.

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CHARLES B. STILWELL, OF WAYNE, PENNSYLVANIA, ASSIGNOR TO UNIONPAPER BAG- MACHINE COMPANY, F PHILADELPHI PENNSYLVANIA.

A, PENNSYLVANIA, A CORPORATION OF mamon or FEEDING' WEB MATERIAL.

Patented Feb. 16, 1909.

Application led'Jime 7, 1907. Serial No. 377,679.

. To all whom it may concern.'

Be it known that I, CHARLES B. STILWELL, a citizen of the United States, residing in Wayne, county of Delaware, State of Pennfollowing is a form a part thereof.A

The present invention relates to the art of U feedingweb material drawn fromrolls.

In connection with many modern high speed, newspaper o r other printing presses,- -paper bag machines and the like, the paper or other materiall printed or otherwise worked uponis supplied in the form of a continuous constantly advancing web drawn v l' from ai roll.

' The object of my invention is to simplify Y and improve the process of so attaching the outer end of a sparcv roll to the web being drawn from-the roll in usethat the supply from *the last mentioned roll'may stop,` as from exhaustion of the roll, Without interfering'with the continuous advancement of a. continuous web. n

`Incari-yingout my invention, I rst at- A tach the flap .or outer endof the spare roll tok 'the' body of the rollv by a'bond strong enough to hold the web in place when the roll is rapidly rotated in the direction. in

. vwhichthe roll tends to unwind. After the .end of the roll is anchored in place, I'v set the roll in rotation gradually bringing its Aperipheral speed upto a parityv with the speed at which the web-fed fromthe roll -in use travels. I then bring the periphery of therotating spare roll and the advancing web from the roll in use into contact with vsufficient pressure so thatv 'a bond of suitably'suppliedpaste willbe formed between the end l of the spare roll and the advancing web from the other roll which will cause the end ofthe spare 'roll tov be detached 'from the body of the roll and fed forward by the web from the roll inuse. I attach the two webs before the roll in use is entirely exhausted and by bringing 'the spare roll up'to speed before attaching it to the web from the roll in use 'I avoid the shock and disruptive strains which would occur if it were aty tempted to set the'heavy spare roll in rotation with the proper speed at the instant at which the two webs are connected together.

use or stub roll just back of the point of at- '.Us'ually Iisever the web from thev roll intachrnent to the other roll at or about the time at which the webs from the tworolls lare connectedtogether. I A

vThe-paste for connecting 'the two-'websl maybe applied to the proper portions of either or both Webs before the joint, forming Contact occurs. In practice I prefer to apply the paste toa considerable portion of scribed the construction and operation of one form lof mechanism which may advantageously be employedin carrying out my invention. The simple but effective-mechanismemployed is new with me and forms the subject of my application for patent, Serial Number 377,678 filed' of even date herewith. Of. the drawings, Figure 1 is an elevation withparts broken away of a machine particularly designed for feeding paper vto printing presses, paper bag making'machinesorvthe'like. Fig. 2 is a plan view, with parts broken away, of the mechanism shown .in Fig. 1 and Fig. 3 is a perspective view of a spare roll `prepared for use.

In the drawings, A represents theframework of the -machine, having two inclined Roll shaft bearing boxes C are mounted on ,the guideways and havevdepending portions C1 threaded for engagement with the threads on the feed screws B. The normal position of the roll in use D is at the right hand end ofthe guideways as seen in Fig. l, itssupporting fshaft D1 being journaled in a corresponding pair of boxes C. The initial p0- sition of the spare roll E is at the left hand or upper end of the guideways as seen in Fig. l. Its supporting shaft El is journaled in another pair of boxes C. The web D2 from the roll inv use is fed from the roll D in 'any suitable manner over the guide roll F lcarried'by the framework A.

The spare roll E has its outer flap end lightly attached to the body of the roll, as by paste applied at the points E2 shown in Fig. 3. Spaced apart portions Es of the outer surface of the flap end have paste applied to them as indicated iii Fig. 3.

When it is desired to connect the flap end of the roll E to the web 4l) being drawn from the roll D, the roll Ey is brought. up to speed by means of a driving wheel VGr carried by the shaft journaled in boxes G4" movabiy supported in arms G1 pivoted on shaft Uff and movable'from the dotted line position shown in Fig. 1 to the full line operating positionV by an. opei'atiiig handle (is.

ln the operating position, the roll E is engaged between the paste portions E2 by wheel (Jr which then serves as an idler connecting the roll hi and a friction wheel H, belt driven with a peripheral velocityequal to the speed at which the web D is advanced. 'lhe wheel thus serves as a frictional driving device for gradually bringing the roll up to the desired speed. When y the friction'wheel G is swung into the full line position,- the arms J pivoted on the shaft G5 also swing from the dotted position into the full line positionvof big. l, being Vmoved by the springs J1. Normally the i -arms J are held down by the weight ofthe roll G and parts carried by it acting through arms G9 carried by the'shaft G5 and engag ing the arms J. 'lhe upward movement of the arms J is checked by stop lugs A3 car-- ried by the framework A. v ()iie oI the arms 'J carries at one end of the roll E a trip lever Jf gravitally held in the position shown in Fig. l, except when it is momentarily moved out of that position once in each rotation of the roll E by the arm E, carried by the roll shaft E1. As the roll E is brought up to speed the web l)2 drawn from the, roll D over the guide roll F is graduallyl deflected againstthe periphery of thel roll D by an idler roll K journaled in arms K1 secured to a shaft 1'2 pivotally mounted on the frame- Y work and adapted to be swung by a handle 'K3 from the dottedposition in which it is normally held b shaft arm K?. and spring -K5 tothe full line position'of F i'g'.' 1. As the idler rollK approaches the periphery of the rollv E, a latch or locking device M is actuated as byan arm K ycarried by shaft K2- to release a spring actuated striker or severing device. The severing device ycoinl prisesa blade L1 carried-by arms L2 secured to ashaft L3 journaled in the frame.

work and valso arigidly connected arm L- A spring L5v extending between the frame- Work and an 'arm L secure'dto the shaft L3 normal gravity heldfposit'iong- -:When the-l latter istripped," however, thearm' Ef urges the striker-iii" the cutting direction when the striker is released by lits locking devicesi. When the latch M is turned to dis- Iengage the striker, thearm 'Llrst engagesthe trip lever Jtwhen the 4 latter is fiiifits.

carried by the roll shaft, the striking blade, under the action of its spring, swings down and cutsthe tense Vweb DL. A' cooperating blade or paper support`J`-' isf preferably carried by thearms J. The' downward motion ofthe striking blade is arrested by its engagement with the arms J or stops J? carried thereby.

In the usual method of operation, the idlerv roll K is gradually swuiigover into proximity with the periphery of the roll E.V After theweb of the roil l) is brought into proximity withthe periphery of the roll E, the operatorpwaits until the'arm E* passes the trip lever J* before bringing the web D2 into contact with the roll l5. immediately aiter the arm in* passes the lever J* he forces the web against the periphery of the roll E and at the samev time the -locklever M is tripped. When, thereafter, the rotation of -the roll E brings paste portionslafinto contact with the web-l): the'iiapend of the roll h; adheres to the web Dt', breaking the bond between the ilapend and the body of the roll ri. At the pi oper instant the `trip lever J 4 is engaged by the arm and the cutting olf device swings into engagement with the web.

It will be understood that the arin vla 1s initially set relative 'to .zthe flap end Vof the roll la so that the severing device vworks at the right time. Y

rlaving now described my invention, what I claim as new and desire vto secure by Letters lf'atent is y Y Y lhe method of attaching the outer end of the web of aspare roll of paper to a'rapidly in use which consists in securing vthe outer end of the web of the spare roll to the body of thevspare roll by a bond easily broken, but of sufficient strength to hold the end of the web in place when lthe roll israpidly ro.v Vtated about its own axis, applying paste to a considerable portion of the outer surface of said outer end, giving the spare roll a rotative movement about its own axis such that its eriphery travels withthe same speedas t e web drawn from the roll in use while saidspare roll .is outof contact with said advancing web, and then whilersaid spareV roll is s o rotating bringing the periphery of the spare roll and the advancing web into contact to cause the paste carried by said outer end of the spare roll to adhere to l said advancingweb with such strengththat. the pulljof the advancing web will break V.the

roll and cause its webtomo've, forward with 'the web V l l l f Witnesses:. ARNOLD-Kum,

. D. Srnwaim 12o` bond between the web and. bodyof thespare

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