US823797A - Paper-slitter. - Google Patents

Description

PATENTED JUNE 19, i906.

W. J. LUPTON.

PAPER SLITTER.

APPLmATmN FILED $0121. 1905.

-iliwqi giver? Zw" PATENTED JUNE 19, 1906.

W. J. LUPTON.

PAPER SLITTBR. nmeumn FILED gov. a?, 1905.

2 SHEETS-SHEET 2.

[l N ITED STATES PATENT ermee;

PAPER-sufran.

Specification of Letters Pia ont.

:atenten une 19, 19.06,

Application filed November 2'?, lfiA Serial No. 289.205.

To (LIZ whom, t may nouw/5771,;

Be it known that i, WILLIAM J. Lurrou, e

citizen of the United Stn/tes, residingV nt l .nele port, in the eountjyv ol' Niagara. end Stute of New York, here invented e new und useful Improvement in Peper-Slimme of which the following is e specification,

, This invention relates to a peper-slitter for dividing a web or sheet of peper into n, ph rality of strips or bends as the seme leaves the oper-making muohine.

T e object of this invention is to provide an eflieientslitter for this purpose whereby the change from one size or width of strips to anothersize een be el'eoted quickly and witho t the necessity of breaking down the web,

.Si 1s very compact 1n construction.

he accompanying drawings, eonsisting 0i two sheets, Figure 1 is a fmgmenter i ver tical section of my improved peper-Slither, teken transversely of the vpath of the web to be divided. Figs. 2, 8e fl, and 5 are Vertical sections in the correspondingly-numbered lines in Fig. l, teken in direction lengthwise of the ath of the weh.

-Similer letters of reference indicate eorresponding`perts throughout the several views. The freine upon which the working parte of my improved slitter are mounted may he of any suitable construction; but l prefer to utilize part of the frame of the 1peper-Cntting machine for this purpose.

In the drawings, A A represent the usual side pieces of the paper-making machine, andn e a two overhenging stendards mounted' on these side frames, which perte serve es the means for supporting the mechanism of my im rove'fl slitter.

B represent two horizontal reversing' shafts arranged parallel one above the other to be out.Y The upper shaft hearings et the u per ends of the standard, and the lower she t B' is journe-led in similar hearings at the upper end oi the'sirle pieces of the mein frame. Each of the reversin shafts is proviciec with e pair of hubs or eo lars i5; which nre secured to the seme near opposite ends thereof, euch hub being provided on flimuetreally opposite sides with supportg ingerms b b', so that each shaft has two pairs of such arms, which are arranged in line und on opposite sides th roof.

which ere arranged vhm'izmuelhx on opposite sides of the lower rwrrsin #heit und parallel therewith und enel; of e'hieh'is journeled ut its ends in hearings on the srljurent supportingmrins. Eur-,l1 of rho :Junior-imite is lprovided with u plurulit` oi' hurler Liedes, disks, or wheels c u e. Tlie uumlr of those eutter-dislrs may he Varied, unl iisks on one cutter-shell; :ire spared i., from that of the disks on the other A Y left lo eri- Aehle o weh el" po. .er of a. gire-u 1. uit! to be eut into strips of di 'erent widths, As shown in Fig. l, one of the lower eu# hir-shafts is re vided with e ser nl" three culi 7rsfliske, wiioh are spueedto trim oif tlu` edges of the. wel) and divin. the sume e( strips, while the other lower cutter-shaft is provided with e set of four ou! tor-disks,wheh are erle. )ted to trim oii the side edges of the web en( divirh; the same into three strips or loa-nds of equal width. Each of the lower Y set of cutter-disks may be broiight into work- Ving position, and the sheet or weh of peper may be divided according to the agreeing of Vthe disks of that particular set.

D D represent two upper reversing shafts whieh are arranged horizontally ono positesides of 'theupper reversing shaft an parel lel therewith und each of which is journaleV at its opposite end in hearings 1):l D, mouiited in the su porting-urine on the corres wonding side of t ie upper reversing shaft. pon each of these upper cutter-shafts is mounted a set ofrotery cutter disks or wheels d d d, the same being adjustable lengthwise on their olly into two In the organization ofthe meohine.

IOC

shafts te permit of cutting the web of apex' into (iierent widthin cooperation wit the lower cutting-rliekia Either set ui upper disks is in its o eretive position when it. is nrranged rertife ly helow the upper reversing sheit and cooperates with the lmver set of cul-lere, which et this time is above the lower C C represent two ower eutterwshefts, l reversing shuft,. Ry turning the upper reversing shaf t either of its sets of cutters may be bro ht in the working position. As shown iiligFig. 1, one of the u per cutter-shafts is provided with a set of tliree cutter-disks, which have their eri iheral positions engaging against the si e o a corres )ending set of lower cutting-disks, whereby t e web of paper, which is fed horizontally between the same from the paper-making machine, is trimmed olf onits opposite marginal-edges and divided into two strips. The other set of upper cutters at this time is above the up er reversing shaft and comprises four d1s s, which are adapted to coperatie with the set of four lower cutting-disks upon rotating the reversing frames half a turn, whereby the web is trimmed off at its side edges and divided into three strips or bands.

EachY of the reversing shafts and the sup porting-arms at opposite ends thereof lform a rotary reversing frame which carries two sets of rotating cutters on o posite sides of its center, each set being a apted for cooperation with/the corresponding set of cutters upon the other frame upon turning both frames into the position to bring the companion cutters into operative relation. While the two companion sets of cutters of the two reversing frames are in their operative position for cutting the web into strips of certain sizes, the companion cutters on the other cutter-shafts are in an inoperative position and free to be adjusted for cutting the web into str ips of different widtlis. In order to change the cutting the web from one size to another, it is ther re only necessary to turn both frames so s to move the companion operative cutters out of the working position and the companion inoperative cutters into the working position.

1t has been found desirable to effect the trimming of the edge of the web by engaging the upper marginal cutters d dz with the outer side of the lower marginal cutters c c2 in order to throw thewaste which is removed downwardly, and thereby prevent the same from passing on to the following mechanism and interfering with the operation thereof. It is immaterial, however, on which side the intermediate lower cutters c" are engaged by the upper cutters df; but in the drawinvs these intermediate cutters are engaged reilatively to each other, the same as the cooperating cutters c d, which trim the left edge of the web.

In setting the companion sets of cutters of both frames for producing a trimming or division of the web along certain predetermined lines the lower cutting-disks of the respective set are first ad justcd alon r their res ective shaft until their cutting e ges are in tiic desired position. i Each of the upper sets of cutters is then adjusted for properly coperating with its `companion lower set of cutters by the folldwing means. represents thi,l hubs of the upper cutters d d, which are mounted on their res ective shafts and operatively connected tiierewith by means of splines e, so as to compel the same to turn with their shafts, but ermit the cutters to be adjusted len thwise t ereof. F F represent a plurality o stop-collars which are secured by set-screwsf to the upper cutter-shafts on the rear sides of the hubs of the upper cutters d Il', so as to limit the axial movement of these cutters on these shafts in a direction from lef t to right. Each of these cutters is held with its hub yieldingly against its respective stop-collar by means of a s ring G, interposed between the front side of he cutter-hub, and another stop-collar g, adjustabiy secured to the respective shaft by means of a set-screw g or otherwise. Each of the u per cuttershafts isiadjustable axially, together with the cutters dd, mounted thereon, by means of a horizontal adjusting-shaft H, journaled in bearings on the ad'acent arms of the reversing frame, but hel against axial movement therein, right and left screw-threads H H2, arranged on o posite ends of said adjustingsha t, a han wheel h, secured to one end of said screw-sh aft for turning the same', a screwnut L, working on the thread at the left end of the shaft, and a coupling-finger hz, projecting laterallyfrom the screw-nut h into the 9 groove i of a collar l, secured to the left end of the adjacent cutter-shaft. Tilting of this screw-nut is prevented by means of a guidefoot i', projecting laterally from the opposite side of the nut and sliding lengthwise on the surface of the adjacent reversing shaft. J represents the hubs of the cutters d2, which trim ofi` the ri ht margin of the web in co eration with t slight-end cutters c of t e lower reversing frame. Each of the upper right-end cutter-hubs is mounted on its respective shaft by means of a spline y', which compels this cutter to turn with its shaft, but permits the same to move lengthwise thereon. K represents rrooved coupling-collars which are arranged on the upper cuttershafts on the right-hand cutter-hubs and which are connected by splines k to said shaft. Sprin s L are mounted on the upper cutter-shafts etween the right-end' cutterhubs and the coupling-collars K for yieldingly separating these parts, this separation being limited in any suitable way, but preferably by means of stop rods or bolts l, which are connected at one end with lugs on the coupling-collars K, while their opposite ends slide loosely hrou h lugs on the cutter-hubs J and are provided 'Midi` heads or shoulders engaging with the last-menth ned lugs, as shown in Fi l. M represents a screw-mit engaging wit the thread on the ri ht end of the adjusting-shaft H and secure to a carrier m, havinga finger rzy on one side, which engages with the groove in the couplinf-collar K, while' its opposite side is provide with IIO a guide-foot N, which slides lengthwise on the surece of the adjacent reversing short. The screw-nut M is provided with shoulders engaging with opposite sides ol the carrier fm,

so that u on turning this nut in one direction ror the ot er the carrier will be moved length- After the cutter-disks of one set on the lower rotary freine have reruired position the companion u per leften marginal cutter d and intermer late outters d arc adjusted on their respective shaft heen adjusted to the so asito stand in the proper position relatively to their companion lower cutters b ing in opposite directions.

' into their operative of the upper and adjusting the rear stop-collars F accor ingly on their shaft. The com anion upper right-end marginal cutter cl2 is e so adjusted on its shaft by' means of the screw-nut M, so that it coperstes with the rightend marginal cutter c`l of the companion lower set. After such adjustment/of the upper set' of cutters has been effected and preparatory to 'moving the same end the conipaniontlower cutters into their Working position the adjusting-shalt Il is turned 1n the direction for causing the u )per cutter-shaft and the left-end and interme inte cutters thereon to he moved toward the left a short distance While the right-end cutter is moved a. similar this opposite movement of these parts beine; effected by reason ofthe screw-threads H H, which engage witl the screw-nuts J, inclin- The upper set of adjusted cutters having been now move slightly out of their operative position, the two rotary frames are reversed, so as to bring the upper and lower sets of adjusted cutters osition above end helow the path of thewe and divided. The adjusting-shaft H of the operative upper cutters is now turned in the reverse direction, whereby the operative upper cutter-shaft, together with the left marginal cutter d and the intermediate cutters d, ere carried toward the rightv and engaged with the left side of their companion lower cutters c c', while et the some time the right inerginal cutter d* is moved toward the left and eri aged with the right side of its nonipanion owcr right-hond marginal cutter c". if .one of the upper cutters should eugene its companion lower cu ttor somewhat in advance of the other cuttcrsin thesanic set, the springs G li, whereby the seme nie hacked up, yield tbc required extent, tliuspreventing injury to the parte, While permitting all of the cutters to properly engage enr-.h other without necessitating absolutely perfect odiustinont lower cutters relatively to eecliother. i

' effected in unison distance toward the righ@I whichis to be trimmedV rlhe two frames supportingr the two sets oi cutters may he turned by any suitable ineens lor moving,r two com )onion sets into the workin position and the other two companion wor ring sets out of the working portion. The 'reversing ofv these frames is preferably hy ineens of n vfyiirel intermediate shaft o, journelrd in suitnhlr beurings on the stationery sert of the nuirhinc and operatively connecte at its opposite ends by means of intcrnieshing bevel-gears o o2, ronnecting the saine with the adjacent ends ol the upper ond lower reversing; shafts. These shiifts are )refernhly turned b v menus of a hand-wheel o3, applied to ibo frontend of 1hr lower reversing shult, as'sbown in Fig. l.

ln the use ol'` the slittoi' it is nervssnrjg' to hohl the reversing lrnnwsV rigidi;YA in the different positions in which tbv sonic nre adjustvd, which positions im` preferably four in number 'Y wie. the working positions of either rompanion .sels ol rnttcr while the other rompenion sots nre mit of working position und two interimilinle positions, in whrlmill of the sels of ruiters :tre cnt of 'worlsinpr position, The prll'vrrvd moons for holding the reversing frames rigidly in diflel`- ont quarters of their rolziri' movement con sisis nl' locking-disks P P', secured tol-he corresponding ends ol the reversing shafts and each provided in its periphertv with four e uidistant notches or recesses p, a verticiillymovable locking-bnr Q, guided on the adiacent art of the mein frame and provided with ocking pewls or dogs g, adopted to engage with corresponding notches on the under sides of the locking-disks, a spring q', operating to shift the lockingfbar in the direction for holding the dogs in engagement with the locking-disks, and a horizontal shiftingr'od l, havingI a handle 'r at its front end and its rear end connected with the lower end of IOC) the lookinghnr b v ineens yof on elbowdever Y r', so that upon pulling the rod forwardly the dogs q willbe disengaged from the lockingdisks to permit of rotating the reversingframeswhcn desired.

' The weh is rquided hetiveen the operative cutter-disks by arranging,lr a guide-bar S lengthwise in iront of erich lower set of cutter-disks and supporting the same at its ends by brackets s on ilo adlicrent siipportingnrins of the lower ri-vcrsing frame, es shown by full lines in Figi'. 2 and by dotted and full lines in Fig. 1. In addition to directing the paper between thc cutter-disks the saine is prevented from resting on the lower 'disks and beine; marred thereby.

The notches in the lorl ing-rlisl s are so nrrnnged that, each reversing* fro-inc muy he held in the positions in which either one or the other oi" ils svt oi cutting-disks is in its operative position, or the sumo muy bn bold in e midwest position. in whit-li iis two srtsof cutter-disl s nre arranged horizontally side by side, in which position both sets of cutters ar(` out of operation and the web passes from the paper-machine through the slitter without icing trimmed or divided into strips. Various means may he provided for rotating the cutter-shafts in the directinin for moving their opposing portions in the same direction in which the web of paper moves which is being severed when these critters are in their working position. 'lhe )referred means for this purpose shown in tlie drawings are constructor as follows: 'l represents gear-wheels arranged on the correspomling ends of the several cutter-shafts. U )on turning these frames so that two of their companion sets of cutters are in a Working position the peripheries of the gear-wheels which are mounted on the respective cuttershafts interrnesh and cause these cutters to rotate in unison. Upon turning these frames so that the companion sets of cutters are not in a working position their companion gearwheels are disengaged, so that th'e rota-tion of these cutters is arrested. Motion is trans-- mitted to the operative cutters by means of a pinion f engaging the gear-wheel of one of the cutter-s nifts of a set of cutters while in its operative position. As shown in Fin. l, this pinion engages with the lower side o? the gear-wheel on the shaft of the lower set of cutters while the saine is in working position. This pinion secured to a horizontal drivingshaft u, which is journaled in the adjacent part of the frame and driven by a belt passing around a sprocket-wheel u on the driving-shaft or by any other suitable means. Each of' the eea r-whcels of the lower shafts is engaged witi this driving-pinion as the respective lower set of cutters is moved into its o erative position, but is again disengaged t erefrom when this set of cutters is moved out of its operative position.

ln order to prevent injury to the gearwheels T if the teeth of the companion pair should engage cach other end to end upon reaching their operative position, means-are provided for permitting. one of the cuttershafts to yield until these gear-wheels during their continued rotation drop into proper mesh. For this purpose each of the up er cutter-shafts has its right-end bearing ll), which is next to the driving gear-wheel T, so mounted that it is movable radially on the reversing frame, while the .bearing l)2 at the opposite end of said shaft 1s swiveled on the adjacent art of the reversing frame. As shown in l and 4, cach ofthe radiallyinovable bearings vD3 is arranged in a recess V in the outer end of the respective supporting-arm and provided on opposite sides with ins or lugs fc, which are guided in slots c', orined in said arm on opposite sides of said recess and is constantly moved outwardly by means ot a spring o2, interposed between the inner sid(` ol thishcaring and thc bottom of jacent sup the recess V, while its inward movement is limited by means of an adjustable sto v3, consisting of a screw arranged in a ca i W lich closes the outer end of said recess. 1ach of the swiveled or pivoted bcarinfs D2 is arrancd in a recess W, formed in t c outer end of tllie adjacent supporting-arm, and is provided on opposite sides with conical seats, which are engaged by correspondinglyshaped pivots w. These pivots are formed on the inner ends of bolts w', which are arranged in radial slots wz, formed in the adorting-arrn on opposite sides of the recess and each having its head bearsing against the inner wall of said recess, while its nut bears against the. outer wall of the same, as shown in Figs. 1 and 5, for holding the pivots w adjustably in place As the upper cutter-shaft 1s deflected at its right end by im roper engagement of its goal-wheel with t iat of the companion lower gcanwheel the same turns bodily on the pivotsu' out of its normal position and compresses the spring ci; but when the teeth of the two Whee s stand in their roper position rela tively to each other t e deflected shaft is shifted into its normal osition by the rcs'iliu ence of said spring an the gear-wheels are retained in proper driving engagement with each other.

w'i w* represent adjusting-screws arranged on the left upper arms at the inner and outer ends of their recesses W and engaging with the corresponding ends of the swivel-l iearings. Pay turning the screws l w* and also the screws o in the proper direction the upper cuttershafts may be moved radially on the upper .reversible frame to a limited extent for ad- 'usting the lap of the upper cutters to the lower cutters and com ensating for any wear on the periphery of t .e same.

In order to hold the upper cutter-shafts rigidly in their working position after the driving gear-Wheel of each of these shafts is in. en agement with its companion lower gear-w el the following means are provided, which'are best shown in Figs. 1 and 4. z :c represent two movable latches, which are pivoted at their inner ends on the adjacent supporting-arms of the upper rotary frame, in which the radially-movable bearings are uidcd. Each of these latches is movable aterally with its free outer end into and out of enga ement with an adjustable abutment or shou der x on the outer end of the adjacent radially-movable bearing, said abutf ment preferably consisting of a screw. The movement of the latch when its outer end reaches its operative position underneath the screw 'is'. s arrested by means of a stop x on the adjacent supporting-arm, as shown in Fig. 4. The lateral movement of this latch into and out of its operativel osition isqef- A 'de y, having fectcd b a radially-movable l a cam-s apod slot y,`wbich receives a pm 1u ICO lll

on lfhr inline-Pnt latch. The slide is moved inwardly, or in therlirmtion 'for shifting the latch into ongugonient. with the abutment screw 1r. by moans of fr spring y, which surrounds thv hitch nml hours .stV one onfl against n shoulder thorfon and ot its opposite emi against, o puri of theV upper rovi-Isin" frame. 'lhl invfzxrl lnox'vnwnt of tho sliih Vor nioringjthv lstr'h out of tho with of tho abutmentsirow .r is olivi-toil hy lnonus ol` n tuppot or .shi'itingJingcr nrrnngml nt the innor end of ihr sliih. n .mit ionnrfr guido-ring z', arranged c'onwntrimily shoot thi` slijm-ont purl of tho oppor rowrsing shalt nml svvlnirl to u. snpporiing-phlto nml two movnhlo @inns a, which uro urrnngml tangentinlly or encentijmilly within thil guido-ring unil ure pivotoil :it their innor omis to rho supportingplzm si, so us to leave :in intm'viniog spans hetwot'u thil sumo, whih` ihvir outer Poils Yost loosely against thv horn oi' sail guidiL ring. us roprvstnte-d in Figs. t .-uul 4. uWhen oniot thv oppor fruttnl'vshults is in its lower opvrstiw position, with its guur '.l properly in uws-h with that of the coin )anion gaan Whoo] on u hover critter-slurf@ t e lin Y er z of thv .shifting slillo fis rosting on the ottoni of the* guido-ring. ss shown in Figs. 1 and 4, mui soul slithf holds he hitch with its freeend over thv shotnwnt :n' of the*v lower radially' :noz-*alito homing, so that the operativo upper vut-tvr-slmltroitunot riso, thus com )telling its rut tors to sho-(ir the weh of paper W ich is being oieri'itod upon and preventing the wel) from Ilifting sind cutters vUpon rotating tho upper onlinr-immo n liirl'i-t'iz1n the shiftingiingir z of ihn slide if engages with tho unflor sithof ono ol the rinus z and lifts the sanita, nml as this'ingor clears tho fre@- end of this anni tho latter again [trops hook into its normal position against thil imroof the g11ifiering. At tho sumo tionx the shifting-finger of tho other shii'ing slide 'y is moved from the top ol' thiJ guido-ring downwardly along tlw oppositr inner sirio of tho suine ond over tin- 'oihvr fum s3. The latter sots on the shifting-linger :if oi the (lowuwsrcllyunoving sliih: nml raises the lnttvnwvhorohy the latch inou-.il litt orally out of the pu Lh of the abutnfrnhsi-ri-iw .1", illus porinitting the radially-- i omino shit hdhnnring to yiohi inwiirdlyi its Emir-n lH-r-I siionhl limb with its tooth on to i ol' ihos" ol tho lower companion gsnr-Wliool. f #n :ui-orio?. of I hv coniinuod roiut'ion ofthosi, ports whilv thus improoorlxf engaged the ninth will snor. hr shit'totl n position so tlnithvr will nwsh oroporl),r in' tho time th." rf.- wrsiug 'ii-:mw hns oomploliwl si hslltnrn soil sho oppor suitors huw.' linnn shiftiofl into their Hpli'utivo position ohovo their i'oxnpooion lmwr f'ultzirs, Asitlho rotary fratno romiili-ivs ils l'nlltturn tho shifting-fingersdrops oil' ihr hmm' omi of the com 23 smi through ihn spur@ hotworui tho sunto and tho inner veul oi" tho other usm a and upon the lower side 0l the guidoring z', whereby the slide is shifted in the direction for again brin ing the latch over the abutmenbscrew sndiolding the, respective rsdiallyonovablo bearing in position By employing two retractingoams 23, which sro arranged eocentrioslly within the guide-ring, the controlling-slides aro oporateel regardless of whether tho cutter-frames are rotated in one direction or tho other. If those iframes are rotated` constantly in one direc-lion in changing from on@ cutter to another, it will only be necessary to employ one ot the rotructing-csnis, unit the suine may be nis-ilo stationary instead of moi-'shia i claim as my invention- 1. A paper-slitta' comprising two frames arranged on opposite sides of Ehe path oi the web to he cui and ouch pivotrd on an axis parallel to tho plone of said wel; snel es able of milking n complete turn, two sot-S o outtors mounted on enc-l1 fraise, and means for turning said frames and bringing the companion sots of cuttaurs thereof into coperative rehition, subsisntinlly ss sot forth.

2. A paper-slitta comprising two rotar iranes pivotod on opposite sides of tho psbli of tho web to be out', two sets of cutters mounted on each of said frames on opposite sides of its i'rsmos for ringing euch of its sets of cutters between the two pivots of the two framesI substantially ns set forth.

3. A paper-slitta' comprising two rotary frames pivotod on opposite sides oi' the pstli of tho 'web to he QoL-cooperating (tutte-,rs mounted ros )actively on sind haines und oonneotiing mechanism between said frames operating to tui-litho sinne together substrintally :1s set; forth.

4. A parlor-slitta' comprising two rotary frames pivoted on oppositieV sides of the path of the web to he out., cooperating cutters mounted respectively on said frames and Vconnecting mechanism between said frames operating to turn the somo togotlier and Consising o? an intorn'icdiato shaft and bevelgesringloonnooting said shaft with the pivot. of said frames, subst sntially ss set forth El A paper-slider noxnprising two rotinrly ranios pivotell on oppositf sitios ofthe pnt i of' the wol) to ho cui., cooporiiing imiter-5 mounted respectively, on sind frames, and uiocling dorian for holding both ol said frames against turning, oonsistinr of lookngoisks Yarriin roti on the pivots ot' said frames sind ooii raving notches or iones-'sos in 1Ls poriphory, n rociproooting looking-bur, and pziwls :irrongvd on said lmr und Qonstruoteil to outer tho notches or roces-sos of said disks, substantially asset forth.

ti. A imporslittror ironiprising two rotiu'ly riunos pivotod on opposite sides of tho put 1 ol" tho wel) to he out, cooperating cutters rnountod respectively on sind frmnes, and a iivot, and moans for turning said locking drff'ifor holding hoth of said frames f hold iid against turni: 1( consisting of lockingulislw arran ed on the pivots of said frames and each aving notches or recesses in. its pw tiphery, a reciprocating locking-hui' and pawls arranged on said bar and constriuztrd to enter the notches or recesses of said disks, a s ring for moving luid bar in one direction and) a shiftin 1f-rod connected by au elbowlever with sai but and operating to move the same in the oppote direction, substantially as set forth. 4

7. A. paper-slitter comprising two rotar frames pivoted on opposite sides of the pat i of the web to be cut, cutter-shafts journaled on each of said frames on opposite sides of its pivot and parallel therewith, cutters mounted on each of said cuttenshe .s, and a gear-wheel mounted on each cutterlshaft, the ear-Wheel of the companion cutter-shaft of t e two frames being movable into aud out of enga ement with each other upon ro tating said ames, substantially as set forth.

8. A paper-slltter comprising two rotarlyv frames pivoted on opposite sides of the pat of the web to be cut, cutter-shafts'journaled on each of said frames on opposite sides of its pivot and parallel therewith, cutters mounted on each of said cutter-shafts, gear- Wheels mounted on said cutter-shafts, and the gear-wheels of the companion shafts of both frames being movable into and out of engagement upon rotating said frames, and a driving ear-wheel arranged to be englaged by one o each pair of companion gear-w .eels upon turning said frame into an operative posil ion, substantially as set forth.

3. A paper-slitter comprising two rotar frames pivoted on opposite sides of the pat of the web to be cut, cutter-shafts arranged on said frames anddparallel therewith, swivelm bearings pivote on one of said frames an each supportin one end of one of its cuttershafts, a radial y-mo'v able bearing guided on said last-mentioned frame supporting the opposite end of one of its cutter-shafts, and a gear-Wheel seeured'to the last-mentioned cutter-shaft adj acent to its radially-movable bearing an'd ada ted to move into and out of engagement with a gear-wheel on the other cutter-Shaft, substantially as sot forth.

10. A paper-slitter comprising two rotar" frames pivoted on opposite sides of the pat of the web to be cut, cutter-shafts arranged on said frames and parallel therewithj swiveling bearings pivoted on one of said frames and each supporting pne end of one of its cutter-shafts; a radially-movable bearing guided on said lasbmentioned frame supporting the opposite ehd of one of its cutter-shafts, e gear-wheel secured to the last-mentioned cutter-shaft adj acent to its radially--inm'ahle bearing and adapted to move into and ont of engagement with a gear-wheel and the other cutter-shaft, and springs operating to wiflivllymovable [Waring 'yieldimply iii als. noi-nml yosiioii. fnhsimtiallvw srt foilh.

ll. puper'slittfl comprising two rotary frames pivolml on ipposim sides ol' tlc path nl thel nel io he uf, (futter-shafts arranged on said iraniens :uni parallel llivrcwil li, swiveling hearings4 pirolld on one olI said frames und euch support im( one und ol' uw ol' its out ter-shafts, a radLilly-incroldv hearing guided on said humm-minfami frame oppor-ling th'.l opposite om? ol am@ ol' it ruiter-shafts, :i gminwhec-l f-,wiilerl lo last-nwnlitnwi mitershuft adjacent 1o nh. radially-:unfehle .hearing and adapted io'lxaow imo `ind ont ol' engagement with :i geur-wheel on ihn other cutter-shalt, und radiullyarljustuhlipivots mounted on one of said frames und support,- ing said swivcliug hearil'lg, substantially as set forth.

12. A paper-slitter comprising two rotary frames pivoted on opposite sides of the path of the wel) to he out, cuttcnshafts arranged on said frames and parallel therewith, swivelingr hearings pivoted on one of said frames and ear-h supporting one end of one of its Ycutter-shafts, a radiallymiovable bearing guided on said last-mentioned frame and sup orting the opposite end of one of its cutter-shafts, a gearewhecl secured to last-mentioned cuttershai't adjacent to its radially-movable bearing and adapted to move into and out of engagement with a gear-wheel on the other cutter-shaft, and pivots for said swiveling hearing arranged on bolts which are adjustable radiaily in slots formed in one of said frames, substantially7 asset forth,

13. A paper-slitter comprising two rr ta frames pivoted on opposite sides of the pat ofthe web to be cut, cutter-shafts arranged on said frames and parallel therewith, swiveling bearings pivoted on one of said frames and each supportingone end o one of its cutter-shafts, a ladiallyfrovahle bearing guided on said last-mentioned frame supportin the opposite end of one of `its cutter-sha t, a gear-wheel secured to said last-mentioned cutter-shalt adjacent to its radiallyunovahle bearing and ada ted to move into and out of engagement wit a ear-wheel and the other cuttewshuft, pivots or said swiveling bearin adjustable radially on one of said frames an adjiistiiigscrews mounted on said last-mentioned frame and engaging with the inner and ou ter sides of said swiveling bearing, substantially as set forthi 1 4. A paper-slitter comprising two rotanr freLn'ies pivotd on opposite sides of the path of the web to be cutfcutterehafts arranged on said frames and parallel therewith, swivelingrhearings pivoted on one of said frames and each supporting one end of one of its cutter-shafts, a radially-movable bearing guided on said last-mentioned frame supporting the dpllosite end of one of its cutter'shafts,

l On

a gear-Wheel secured to last-mentioned cuttershaft adjacent to its radially-movable beering and adapted to move into and out oi engagement with e geanwheel and thc other cutter-sharia a sprin nrranged on seid lestrnentioned 'frame an bearin against the inner side of seid radially-Inova le hearing, end an adjusting-Screw `arranged on said last mentioned frame end hearing a reinst the outer side of seid rai ially-movali e bearing, substantiellyas set forth.

15. A aper-slitter comprising two rotary rernee pivoted'on opposite sides of the path of the web to be cnt, cutter-shafts arranged on said frames and parallel therewith swivel* ing bearings; pivoted on one of seid frainee and cec-h supporting one end of one of its cutter-shafts, a radially-movable bearing guided on said lest-mentioned frame and supporting the opposite end of one of its cutter-shatter, a geef-wheel secured to the last-mentioned cutter-shaft adjacent to its radially-movable bearing and adapted to move into and ont of engagement with a gear-wheel on the other cutter-elicit, and a locking device for holdin said radially-movable bearin in its norine position, substantially es set orth.

16. A paper-slitter comprising two rotary frames pivoted on opposite sides of. the path of the web to be out, cutter-shafts arranged on said frames and parallel therewith, swivelv ing bearings pivoted on one of said frames and each supporting one end of one of its cuttePShefte, e radially-movable bearing guided on said last-mentioned freine and supporting the opposite end of one of its cuttershafts, a

gear-wheel secured to lest-mentioned cutter' shaft adjacent to its radially-movable Desiring and iadapted to' move into and out of engagement wi th a gear-wheel on the other cutter-shaft, and an automatic locking devicefor holding seid radially-movable bearing in its normal position and operated by the rotation of said last-mentioned frame, substantially as Set forth.

17. A pepenslitter comprising two rotary frames pivoted on opposite sides of the path of the web to be cut,.cuttershafts arranged on said frames and parallel therewith, swiveling bearings pivoted on one of said iframes and ench supporting one end of. one of its cutter-shafts, a radially-movable bearing guided on said last-mentioned frame and supporting the opposite end of one of its cutten-shefts, e gear-wheel secured to the lest-mentioned cutter-shaft adjacent to its radiallynnovalle be "ing and adapted to move into and out of engagement with a gcanwheel on the other cutter-shaft, and a locking device for holdin@r seid radially-movable hearing in ite nonne osition consisting of a hitch mounted on the est-mentioned frame and engaging with an abutment on said radially-movable bearing, and e cani operetivel/v connected with said latch, substantially as set forth.

frames pivoted on' opposite tides of thepe of the web to be ont, cutter-shafts arranged on said freine-e endierallel therewithI swiveling hearings pivote, on one of said frames and each enpportinfgr one end of one of its cutter shafts, n radially-movable bearing guided on Said last-mentioned ironie and supporting the opposite end oi one ci its cutter-s afts, e. gear-wheel secured to the last-mentioned cutter-shaft adjacent to its radially-movable 'bearing and ade ted to move into and out of engagement Wit a gear-Wheel on the other cutter-shaft, and a locking device for holding seid radially-movable bearing in its normal oeition consisting of latches pivoted on the einer; and normally engaging abutment-S on Said lastmentioned bearings, a slide guided on said last-mentioned freine and having e cern-elet engaging with n iin en seid latch, a spring for shifting Said sli e in a direction. for moving said latchinto its normal position, and en actuating-cem operating ro nieve said slide in the opposite direction, Substantially es set forth. 9o

19. A aper-slitter comprising two rotarv frames pivoted on opposite Sides of the gat oi the web to he cut, cutter-shafts arranged on said frames end parallel therewith, swivcling bearings pivoted on one of said frames and each supporting one end oi one of ite cuttershafts, a radially-movable hearing guided on said lost-mentioned tra Inc and sup orting the op osite end of one of its cutter-shafts, e. gear-W eel secured to the last-mentioned cutter-shaft adjacent to its radiallynnoveble bearing and ada ted to move intoend ont of engagement wit i a gear-wheel on the other cutter-shaft) and a locking device for holding said radialljy'-niovablo bearing in its normal IOS osition consisting of e latch pivoted on the est-mentioned frame and normally engaging en abutmentescrewxon said radially-movable bearing, a stop arranged on Saidllast-incntioned freine and limiting the movement of said latch in one direction, a 'slide arranged on Said last-mentioned frame and having a cam-slot which receives a pin on said latch, a 'spring operating to move seid ide in the direction or moving the latch 'i to its normal 115 operative ositio'n, a stationary guide-ring which receives a shiftingnger on seid slide, end e, pivoted cam engaging its free end with said gnidering end arranged to he engaged by said shifting-finger for moving said shde inthe direction for retrecting the latch from said abutment-Screw, Substantially as set forth.

26, A paper-slitter comprising a spport ing-freine, a cutter-shaft 3ourneled on said 125 frame and capable of exial movement a plurality of cutters mounted on one end of said l shaft so es to normallf7 move axially therewith, a sin le cutter mounted on the opposite end of sei shaft but constantly Iree to move I 30 18. A peperslitter comprising two roter;

axially inde endent thereof, an. adjustingshaft journalled on said frame and having screw-threads inclining in opposite directions, and screwmuts engaging said. threads and. operatively connected with said shaft end with said single cutter, substantially as set forth.

21. A paper-slitter comprising a supporting-rame, a cutter-shaft journeled on said frame and capeble of axial movement, s plurality of cutters mounted on one end of said Shaft so as to normally move axially therewith, frontand rear stopollars secured to said shaft on opposite sides of cach ,of said plurality of cutters, a spring interposed, between each front stop-coller and the front side of the adjacent cutter, a grooved coup-.

ling-collar connected with said shaft, a single cutter mounted on the opposite end of seid shaft but constantly free to move axially independent thereof, a groove coupling-coller mounted on said shaft and loos lflyponnected with said single cutter, a sprin interposed between said single cutter and t .e last-men tioned coupling-collar, an adj ustingshat journaled on said frame and having screw threads inclining in oposite directions, and nuts engaging with sai threads and having 'fingers engaging with the grooves of said couplingollars, substantially as set forth.

22. A paper-slitter comprising a supporting-freine, e cutter-shaft ,lournaled on said frame and capable of axial movement a plurelity of cutters mounted on one end of said shaft. so es to normally move axially therewith.` a single cutter mounted on the oppo site end of said shaft but constantly free to move axially independent thereof, an adjusting-shaft jonrnaled on Suid frame and lowing screw-threads inclining in opposite directions, a nut engaging with one of said threads and loosely connected with Said. shaft, a nl rier loosely coupled with said single cutter, :t nut engaging with the other thread and journele-d in seid carrier but held against ariel movement relatively thereto, and a met screw' for holding the last-nientioned nut against turning in said carrier, suhstantinllv es set forth.

`viitness my hand this 21st day of Novi-1,: ber, 1905.

WILLIAM J. LUPTON.

Witnesses:

Tnso. L. Por?, E. M. GRAHAM It is hereby eertiied that in Letters Patent No. 823,797, grented June i9, 1906, upon the application of William J.. Lupton, of' Lockport, New York, for an improvement in Paper-Slitters, errors appear in the printed specification requiring correction, as follows: In line page 2, vthe word positions should read portions,- end line 52, same page, the word engaged should read arranged: and that the seid Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Olce.

Signed and sealed this 10th dey of' July, A.. D., 1906.

[SEAL] E. B. MOORE, Acting Commissioner of Potente.

axially inde endent thereof, an. adjustingshaft journalled on said frame and having screw-threads inclining in opposite directions, and screwmuts engaging said. threads and. operatively connected with said shaft end with said single cutter, substantially as set forth.

21. A paper-slitter comprising a supporting-rame, a cutter-shaft journeled on said frame and capeble of axial movement, s plurality of cutters mounted on one end of said Shaft so as to normally move axially therewith, frontand rear stopollars secured to said shaft on opposite sides of cach ,of said plurality of cutters, a spring interposed, between each front stop-coller and the front side of the adjacent cutter, a grooved coup-.

ling-collar connected with said shaft, a single cutter mounted on the opposite end of seid shaft but constantly free to move axially independent thereof, a groove coupling-coller mounted on said shaft and loos lflyponnected with said single cutter, a sprin interposed between said single cutter and t .e last-men tioned coupling-collar, an adj ustingshat journaled on said frame and having screw threads inclining in oposite directions, and nuts engaging with sai threads and having 'fingers engaging with the grooves of said couplingollars, substantially as set forth.

22. A paper-slitter comprising a supporting-freine, e cutter-shaft ,lournaled on said frame and capable of axial movement a plurelity of cutters mounted on one end of said shaft. so es to normally move axially therewith.` a single cutter mounted on the oppo site end of said shaft but constantly free to move axially independent thereof, an adjusting-shaft jonrnaled on Suid frame and lowing screw-threads inclining in opposite directions, a nut engaging with one of said threads and loosely connected with Said. shaft, a nl rier loosely coupled with said single cutter, :t nut engaging with the other thread and journele-d in seid carrier but held against ariel movement relatively thereto, and a met screw' for holding the last-nientioned nut against turning in said carrier, suhstantinllv es set forth.

`viitness my hand this 21st day of Novi-1,: ber, 1905.

WILLIAM J. LUPTON.

Witnesses:

Tnso. L. Por?, E. M. GRAHAM It is hereby eertiied that in Letters Patent No. 823,797, grented June i9, 1906, upon the application of William J.. Lupton, of' Lockport, New York, for an improvement in Paper-Slitters, errors appear in the printed specification requiring correction, as follows: In line page 2, vthe word positions should read portions,- end line 52, same page, the word engaged should read arranged: and that the seid Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Olce.

Signed and sealed this 10th dey of' July, A.. D., 1906.

[SEAL] E. B. MOORE, Acting Commissioner of Potente.

Correctionsl in Letters Patent No. 823.797.

It is hereby certified theta in Lettere Patent No. 823,797, grnted June 149, 1906, upon the application of William J. Lupton, of' Lockport, New York, for an improvement in Paper-Sitters, errore appear .in the printed specification requiring correction, as follows: In line 5, page 2, the word positions should read porzione; and line 52, same page, the word engaged should read arranged; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oce.

Signed and sealed hie 10th day of July, A. D., 1906.

[SEAL] E. B. MOORE,

Acting Commissioner of Patents.

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