US1628215A - Slitting machine - Google Patents

Slitting machine Download PDF

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US1628215A
US1628215A US1628215DA US1628215A US 1628215 A US1628215 A US 1628215A US 1628215D A US1628215D A US 1628215DA US 1628215 A US1628215 A US 1628215A
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slitting
rollers
roller
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06HMARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/04Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials longitudinally
    • D06H7/08Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials longitudinally for cutting tubular fabric longitudinally
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/11Bias [i.e., helically] cutting of tubular stock
    • Y10T29/1131Bias [i.e., helically] cutting of tubular stock with means to feed stock along support or mandrel
    • Y10T29/115Axially
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/11Bias [i.e., helically] cutting of tubular stock
    • Y10T29/1163Bias [i.e., helically] cutting of tubular stock with means to rotate and store stock supply
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6572With additional mans to engage work and orient it relative to tool station
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6584Cut made parallel to direction of and during work movement
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6584Cut made parallel to direction of and during work movement
    • Y10T83/6606Tool between laterally spaced work-conveying means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/768Rotatable disc tool pair or tool and carrier
    • Y10T83/7863Tool pair comprises rotatable tool and nonrotatable tool

Definitions

  • My invention relates 'to slitting machines and hasfor its object to providc a machine of novel construction for slitting tubular material lengthwise in an elilcientand continuous manner.
  • My; invention simultaneously plates particularly the provision of a inachine for rapidly slitting tubular fabric as it comes from a sewing machine, into flat biased. sheets.
  • Fig. l is a plan view of the machine;
  • Fig. 2 is an end elevation partly in section, looking in the direct-ion of the arrow in Fig. l;
  • Fig. 2 is a side elevation and
  • Fig. l is a detail view showing the cutting mechanism.
  • the machine comprises a frame l of suitable form and dimensions and-including a horizontal bedplate ll which in the illustrated example is continued at one end beyond the frame l() in the form of a shelf 12 and bearing brackets l.
  • the machine includes a shaft la journalled in the latter and carrying a roller l5, the surface of which is preferably roughened for instance by being covered Wit-h sandpaper or emery cloth to provide a good gripping surface for the purpose to be more fully setforth hereinafter.
  • a pulley lo' is fixed uponthe shaft la which projects beyond the one ⁇ bearing-bracket 18 for accommodating the same, said pulley being connected by means of a belt 17 with ⁇ apulley 18 which is mounted upon a drive shaft 19 as shown in Figs. l and 2.
  • the roller l may be driven at a higher surface speed than the feed rollers 33 and 33 so that the material, after having been slit,is efficiently Withdrawn from the machine as will appear more fully hereinafter.
  • rlhe shaft l9f ⁇ urther carries a second pulley 20 which in turn is connected, by means of a belt ⁇ 2l, with another pulley 22 carried-by a stud-sl ⁇ iaft 23 journalled in a bearing 2d; the latter is secured upon a bracket 25 projecting from the frame l() as illustrated in Figs. l and 3.
  • the shaft 19 is rotatably mounted in bearings 26 and 26a, comprising parts of stationary b ⁇ ackets 2T and 2" fastened upon and projecting up- Wardly from the bed-plate ll, suitable provision being made to prevent lengthwise movement of said shaft in said bearings Without interfering with its rotation therein.
  • the stationary bracket 27 is continued in the forni of a horizontal arm 28 provided at its free end ⁇ with a vertical bearing 29 in which an upright shaft 30 is journalled; the latter in addition is rotatably mounted in a second vertical bearing 29LL located in spaced axial registry with the bearing 29 andforming part of a horizontal arm 3l as shown in Fig. 2.
  • lhe arm 8l in turn comprises part of an auxiliary bracket 32 which, in the illustrated example, is an independent element fixed upon the bracket 27.
  • a roller preferably having a concavesurface is fixed upon the shaft 3l) betweenthe bearings 29 and 29a, the arrangement being such that said shaft 30 is fixed against vertical movement in said bearings but is Vfree to rotate therein.
  • the upright shaft $0 is actuated by means of a bevel-pinion which meshes with a similar bevel-pinion fixed upon the driving shaft 19 as shown in Fig. 2.
  • a companion roller 33 of corresponding concave form is carried by a second upright shaft 30a in transverse reg istry with the roller. 33 as shown in Figs. l and 2, said shaft 30a being journalled in vertical bearings 29 and 29c located in spaced axial registry with each other; in the illustrated example, the bearings 22D and Lfu are carried by upright brackets and 35, the
  • Vbrackets 34 and also maybe cast or otherwise constructed in'the form of an integral unit.
  • the roller 33 is locat ed between the aforesaid bearings 29g and 29c and is fastened to the shaft 30 in a. manner to prevent lengthwise movement thereofin said bearings Without “interfering with the rotation of said shaft therein.
  • the bracket Sil projects upwardly from a carrier 3G which is slidably mounted upon a horizontal guide 37 forming part of or secured upon the bed plate ll as shown in Fig.
  • suitable devices such set screws 38 being provided for fixing the carrier 36 kann lill r normally forced toward tbe rolle screw 4() which projects into a key-lila): il extending lengthwise oit the shalt l all il lustrated 111 Fig. 2; the bevel pinion -lf meshes 'With a bevel pinion 84 :tired lllloii tlie sliatlt 20".
  • rollers arid ll are :ljlrz'll cent to rollers 42 and 4 ed all lll concave surfaces of the rollers Bil mit' as sliowii lullig.
  • the rollers ure rotatabl5T iiiollii'ted upon up U 48, the heads ol which are cellliterslllllt lll members 44, and tlie Jfree eiills o l" which ll-o serervthreaded into coiiilxuiioii illelllllers l as shown in Fis'.
  • spreaders 46 and 46 bear Witli olie project against the members 44 and 44 ali d with tlie other ends against the meer end elley ot l l reeesses 48 so that the roll 4Q lill.
  • tlie bear lille bolts 45 are comiterslmk irl ⁇ tlie and 4oa and Serve to arrest tl'il ments olf the rollers 4d an said spreaders 4G and 461K -l .lengthwise ot the iiiacliiiie shown iii l?
  • the free ends oi tlgle spreellers il and 46EL are preferablyY curved es indicated :it a and the outer surfaces liliereo'tf, at least. iler a part oi' the length oii earli spreader? curvedes indicated at l) in are@v ing to tlie curvature ot lille @our and 42a as illustrated iii Fili: E; it course.
  • tlle srxlizallers and 46a are suitalllLlY recessed lor Vtli accommodation o1 the rollers 42 and their associated elements lls sliorl'n iii l il
  • the cutting ilieeliaiiisl'li whereby the telnr lar material is progressively slit iii the direction of its lengthy comprises rly l'otatable elle roer Al lill ⁇ iolll'llzlllrll lll lleiilfllili's llllg tile lzltlel; ls :lllllllrll ill ltgg, ⁇ 5.1L rl llilrise llzirts o'l" llll lloriliolll'all lllellllr ill eoiilllll Wirf :l llrlll, lll"l tllc :lllul
  • Themachine is then set inmotion by means cf the pulley 63 and belt 64, vvherebymqtion is imparted to the shaft 19 and the rollers 33 ⁇ and 33a; at the same time, the cutter lis actuatedv through the 'medium of the belt 59 and pulleys i8 and 60.
  • the speed at which the material is fed by said rollers will be” slightly less ⁇ than the speed ativhich the roller 15 tends to advance said material*
  • thematerial 70"islh ⁇ eld underatension or in other Words is maintained in a tant condition between the rollers 33 and 33a and the roller 15 whereby the slitting action of the cutter 54 is materiallyfacilitated.
  • the material after having been slit is e'liiciently removed from the ma- It will be noted that at the slitting joint ⁇ the material 70 passes .over the forked end 62 of the guide member 61 and tha after it is slit, said material travels beneath the cross-bar 50 and gradually opens up into the flat sheet-like form in which it passes over the roller l5. In this Way, the material is continuously fed along at the slitting point and is progressively slit in the direction of its length and as this slitting occurs, the material opens up flat under the cross-bar 50 as indicated in Figs, 1 and 3.
  • the turn-table 65 is rotated in a manner and at speed to progressively un twist the fabric or material as it passes from the receptacle G9 so that the tubular matcrial passes in a smooth condition over the spreaders i6 and 46a in a uniform manner and ⁇ without interruption as long as the machine is in operation.
  • the shelf l2 prevents i sagging of the material into the mechanism on the machine side of the roller 15 if anything occurs to interrupt the action of the ⁇ cooperation between the rollers latter.
  • the shelfl may be positioned in the machinet mA a manner to guide ⁇ the'slitted material out of the machine by y gravityin which case the roller 15 and its i associated parts may be omitted.
  • the machine is simple in construction and eiiicient in operation and requires'no skilled attention in the performance of its functions.
  • rollere uljuSt-:ihly mounted upon Huid Sup-- porting' il'rnme for :uljnetinnl Suid convex Yfeed roller toward und uu'uy lj'rom the troop eruting concave leed roller, mecliuniem lor actuating Aseid concave ifeed rollers? und L .friction roller ⁇ ell'eetive upon the slit moterizil 'for plueilu; ⁇ Enid materiel under teneion ut the slitting ⁇ point.

Description

o'. B. zoLlNE -SLITTING MACHINE- Filed July 1o, 1925 3 sheets-singer 2 u 1,62 15 M" 10'1927 o. B. zoLlNE 8,2
SLITTING MACHINE Cir Patented May l0, 1927.
UNITED STATES PATENT OFFICE.
onRiN n. zoLINn, or YORK, N. Y., AssiGNon ro BRAND a oPrnNHnmnRQiN ooRroRarnn, or NEW YORK, N. Y., A CORPORATION or NEW YORK.
SLITTING MACHINE.
Application filed July 10, 1925. Serial No. 42,673.
My invention relates 'to slitting machines and hasfor its object to providc a machine of novel construction for slitting tubular material lengthwise in an elilcientand continuous manner. My; invention contenu plates particularly the provision of a inachine for rapidly slitting tubular fabric as it comes from a sewing machine, into flat biased. sheets. Other objects of the invention will appear from the description hereinafter and the features of novelty will be pointed out in the claims.
fn the accompanying drawings, which illustrate an example of the invention Without defining itslimits, Fig. l isa plan view of the machine; Fig. 2 is an end elevation partly in section, looking in the direct-ion of the arrow in Fig. l; Fig. 2 is a side elevation and Fig. l is a detail view showing the cutting mechanism. i
As shown` in the drawings the machine comprises a frame l of suitable form and dimensions and-including a horizontal bedplate ll which in the illustrated example is continued at one end beyond the frame l() in the form of a shelf 12 and bearing brackets l. In its illustratedform, the machine includes a shaft la journalled in the latter and carrying a roller l5, the surface of which is preferably roughened for instance by being covered Wit-h sandpaper or emery cloth to provide a good gripping surface for the purpose to be more fully setforth hereinafter. A pulley lo' is fixed uponthe shaft la which projects beyond the one `bearing-bracket 18 for accommodating the same, said pulley being connected by means of a belt 17 with `apulley 18 which is mounted upon a drive shaft 19 as shown in Figs. l and 2. By a suitable arrangement of pulleys or their equivalent, the roller l may be driven at a higher surface speed than the feed rollers 33 and 33 so that the material, after having been slit,is efficiently Withdrawn from the machine as will appear more fully hereinafter. rlhe shaft l9f`urther carries a second pulley 20 which in turn is connected, by means of a belt`2l, with another pulley 22 carried-by a stud-sl`iaft 23 journalled in a bearing 2d; the latter is secured upon a bracket 25 projecting from the frame l() as illustrated in Figs. l and 3. The shaft 19 is rotatably mounted in bearings 26 and 26a, comprising parts of stationary b `ackets 2T and 2" fastened upon and projecting up- Wardly from the bed-plate ll, suitable provision being made to prevent lengthwise movement of said shaft in said bearings Without interfering with its rotation therein. The stationary bracket 27 is continued in the forni of a horizontal arm 28 provided at its free end `with a vertical bearing 29 in which an upright shaft 30 is journalled; the latter in addition is rotatably mounted in a second vertical bearing 29LL located in spaced axial registry with the bearing 29 andforming part of a horizontal arm 3l as shown in Fig. 2. lhe arm 8l in turn comprises part of an auxiliary bracket 32 which, in the illustrated example, is an independent element fixed upon the bracket 27. although it will be obvious that the brackets 2"( and may be cast or otherwise constructed as an integral unit; in any case, said brackets 27' and comprise an auxiliary supporting means located `upon the bed-plate ll. A roller preferably having a concavesurface is fixed upon the shaft 3l) betweenthe bearings 29 and 29a, the arrangement being such that said shaft 30 is fixed against vertical movement in said bearings but is Vfree to rotate therein. The upright shaft $0 is actuated by means of a bevel-pinion which meshes with a similar bevel-pinion fixed upon the driving shaft 19 as shown in Fig. 2. A companion roller 33 of corresponding concave form is carried by a second upright shaft 30a in transverse reg istry with the roller. 33 as shown in Figs. l and 2, said shaft 30a being journalled in vertical bearings 29 and 29c located in spaced axial registry with each other; in the illustrated example, the bearings 22D and Lfu are carried by upright brackets and 35, the
latter being fastened upon and supported by the former, although it will be obvious that said Vbrackets 34; and also maybe cast or otherwise constructed in'the form of an integral unit. The roller 33 is locat ed between the aforesaid bearings 29g and 29c and is fastened to the shaft 30 in a. manner to prevent lengthwise movement thereofin said bearings Without "interfering with the rotation of said shaft therein. In any case7 the bracket Sil projects upwardly from a carrier 3G which is slidably mounted upon a horizontal guide 37 forming part of or secured upon the bed plate ll as shown in Fig. 2, suitable devices such set screws 38 being provided for fixing the carrier 36 mais lill r normally forced toward tbe rolle screw 4() which projects into a key-lila): il extending lengthwise oit the shalt l all il lustrated 111 Fig. 2; the bevel pinion -lf meshes 'With a bevel pinion 84 :tired lllloii tlie sliatlt 20".
YThe rollers arid ll" are :ljlrz'll cent to rollers 42 and 4 ed all lll concave surfaces of the rollers Bil mit' as sliowii lullig. The rollers ure rotatabl5T iiiollii'ted upon up U 48, the heads ol which are cellliterslllllt lll members 44, and tlie Jfree eiills o l" which ll-o serervthreaded into coiiilxuiioii illelllllers l as shown in Fis'. the members ft-l; al'i'l of each pair are carried by bolts 45 which are slidablj7 mounted in spreallers 4G :f lill -llllf' respectively.` As shown in lig; Q sflr'i fl l ll---lll 47 srlrrouiidtlie bolts iii recesses lt, o
tbe
spreaders 46 and 46 and bear Witli olie clic against the members 44 and 44 ali d with tlie other ends against the meer end elley ot l l reeesses 48 so that the roll 4Q lill.
elle 38a and are capable of yielding tlle tension of said springs; tlie bear lille bolts 45 are comiterslmk irl `tlie and 4oa and Serve to arrest tl'il ments olf the rollers 4d an said spreaders 4G and 461K -l .lengthwise ot the iiiacliiiie shown iii l? l and 3 and are mounted Upon a cross-bal extending:` transversely across Athe lllalcllllle and supported upon brackets lil zit ll elsllllll'e above the bed-plate ll: ili tlle prelerred air-- rangement the spreaders -Lilf'l and lire :llljustable toward and away lrolli each otller and are fixed iii adjl'lsted positions in elif.'Y Convenient manner lis bj; means ot el plates 52 and clamping' l i e :Eil es l, Fig. 3. The free ends oi tlgle spreellers il and 46EL are preferablyY curved es indicated :it a and the outer surfaces liliereo'tf, at least. iler a part oi' the length oii earli spreader? curvedes indicated at l) in are@v ing to tlie curvature ot lille @our and 42a as illustrated iii Fili: E; it course. be understood that tlle srxlizallers and 46a are suitalllLlY recessed lor Vtli accommodation o1 the rollers 42 and their associated elements lls sliorl'n iii l il The cutting ilieeliaiiisl'li whereby the telnr lar material is progressively slit iii the direction of its lengthy comprises rly l'otatable elle roer Al lill `iolll'llzlllrll lll lleiilfllili's llllg tile lzltlel; ls :lllllllrll ill ltgg,` 5.1L rl llilrise llzirts o'l" llll lloriliolll'all lllellllllr ill eoiilllll Wirf :l llrlll, lll"l tllc :lllullrlrll lll-:llllet lli llle prelerrel'l 1llflfllllgrrllllllll.l :l mit able grllllrll l'll" is llrolfillell iter tlle elltter l l ler lll rllrrlrll lll;l :l ffllllll tll 'llllrrt llril .tfilllllxl millar-l, lllviewitll by all :ltlellllllllll: tile rlllter is :llftllsllell lll' ille lill: ol; a puller ll lelllrell lllloll tllll rlllzl ll' :l prille); lill ce: ,o ,l ly,y tllll lll lt 2113. llorixoiitlll .llrllle lllelllllcr lll if; llll-ztlllell :ll
l'lll :lllll lfrolel'lzl; itl ,i t :1 tllll 'ller ellll olf said ll'lellllllr lil ill llrelferllllljl' llorllcll :ll: i552 to stl'rlllllle llle rllttlr lll :is lllllllrll ill lliri's. o .k ll
llflrlellilll llfalll llc llrrell lrlllll llllr fluit-- lille llrltllrlj lllelllls lll tlie ill lslratell clllillllle efllllllrllllllll' :l llllllel ll carried lljlr tbe sl'llll-sllzllil *lil :lllll roll llected by lllezllls lllE llelt llflA llitll :l l-lrllllrl lllM liloll'el;
'llllieii llrlell lor slillilllr llllllllzlr :l'cllll'llu lor lili livelli-ll lille llzerlllilr is llllllillllzlrll' t lllajx ilcllllle :l lllrlr-llllllll llll llollrlterl rllolfl :i llllltible slllllellrl :lll l. il: :l lrllelletel'lllllllll lllzlllllell 'lor iiistliice by means lll" a puller lll :lilll ;l
`Lltiell, o
bell; l tlll` tllrll-tllllle lill ellillltil'lllel-f :l #lillllllrt or il lelelA elle l'll ill ll'llicli lllllillllr Lrllril: lll iii tlle till tell l-oilll'ltloil ill \l'llil^ll l troll] ille :ll-rl'llle' illzll-llillll ill rlllllllllflelt t will lle llllllcrzlftollll tllzll` llllL tlllllllxlr 'lirlllril lle llrolllicell ill liil lllnl'lclliolllll llllllllllll.
lill llescrilliiigg; lille llllel'lltillll lll tllr lllllrllille it Will lie :issllillllll tlilll it il lllllllg; lllfll'l lor slitting' llllllr lrllA it is ll:lr
,lo been :llii'litell or llle gl'lllde Il lll tlle riglljt iii lilr. Q ill. llrller to llerlllit :lll lill-- jllsliifleilt eil' tlle l-lllrezlllcr ttl lll ll llllll l :ll irliicli tlie distance lllftwlwll lllr A ll irre; plate :llil'l llolt sprrlrller to lle f-flliltell lm 1 bar lll litter lrllllfll tielltelicll up to lil: miller ill il# 'lille l ier Jlfl i-- o llflcll tollllird tlle lel ill brille` lille roller fill il'llll progiciell;
'l :lllll lllll ll i :l l
lritll tbe 'l'zlbrir l'l'l oil tlle fllll'rllllc lll el'lt l :cell ille rollersy `l`l :lllll l2 aj ille :filme illto grrlllllillgr 'lll llil
lrlll lil CIL
"lll
y chine.
scribed 'with respect' to the spreader 46a.
Themachine is then set inmotion by means cf the pulley 63 and belt 64, vvherebymqtion is imparted to the shaft 19 and the rollers 33 `and 33a; at the same time, the cutter lis actuatedv through the 'medium of the belt 59 and pulleys i8 and 60. `The materiali() is then fed in the `direction of its length bythe action of the rollers 33 and 33u in cooperation With the rollers 42 andllithe latter serving to yieldingly press the material against the rollers 33 `and 33`respectivcly `and being themselves operated by fractional engagement therewith.l its the niaterial` is thus fed along, the cutter ihwill slit the sameuntil finally the material" is passed over and in surface engagement with the roller 15 which is driven by means of thebelt 17 and pulleys 16 and 18. The outer surface of said roller 15 being roughened by being covered with sand paper orthe like, it will grip the material and exerta pull thereong" because of the fact that'the roller 15 is driven at a. higher surfacespeed than that of the rollers 33 and 33a, the speed at which the material is fed by said rollers will be" slightly less `than the speed ativhich the roller 15 tends to advance said material* As afresult of this, thematerial 70"islh`eld underatension or in other Words is maintained in a tant condition between the rollers 33 and 33a and the roller 15 whereby the slitting action of the cutter 54 is materiallyfacilitated. At
kthe same time, the material after having been slit is e'liiciently removed from the ma- It will be noted that at the slitting joint` the material 70 passes .over the forked end 62 of the guide member 61 and tha after it is slit, said material travels beneath the cross-bar 50 and gradually opens up into the flat sheet-like form in which it passes over the roller l5. In this Way, the material is continuously fed along at the slitting point and is progressively slit in the direction of its length and as this slitting occurs, the material opens up flat under the cross-bar 50 as indicated in Figs, 1 and 3. The fabric or material `Filis produced in its tubular form in such a manner that when slit, the resulting flat sheets are cut on the bias. As the travel of the material into the machine progresses, the turn-table 65 is rotated in a manner and at speed to progressively un twist the fabric or material as it passes from the receptacle G9 so that the tubular matcrial passes in a smooth condition over the spreaders i6 and 46a in a uniform manner and `without interruption as long as the machine is in operation. The shelf l2 prevents i sagging of the material into the mechanism on the machine side of the roller 15 if anything occurs to interrupt the action of the `cooperation between the rollers latter. If desired, the shelfl may be positioned in the machinet mA a manner to guide `the'slitted material out of the machine by y gravityin which case the roller 15 and its i associated parts may be omitted.
lThe adjustment ofthe spreaders permits the machine to accommodate tubular material `of various sizes and `atthe same "time makes it possible to etii'ect a most eliicient y as, arr 42', 42a respectively. The latter being resiliently mounted not only exert a most efficient gripping action in the material to facilitate `the feeding action of the rollers 33 and 33a but are capable of yielding `relatively to the last named rollers if, in the operation of the machine, this becomes necessary.
The machine is simple in construction and eiiicient in operation and requires'no skilled attention in the performance of its functions. A
Various changes in the specific form shown and described may be made "within the scope of the claims without `depaiting from the spirit of my invention.
. l claim:
l. In a machine for slitting tubular material, the combination of `slitting' mechanism,spreaders adjustable in directions to- Ward and away from each other over which the tubularmaterial passes to said slitting mechanism,` and feeding devices located partly Within said spreaders and partly ein teriorly thereof for feeding said tubular material lengthwise of said spreaders.
2. In a machine for slitting tubular material, the combination of a rotatable slit ting knife, a pair of cooperating spreaders adjustable toward and away from each other over which the tubular material passes to the rotatable slitting knife, feed rollers resiliently mounted in said spreaders and effective upon the inner surface of said tubular material, cooperating feed rollers arranged to clamp the fabric against said first named feed rollers. and means for actuating said last named feed rollers to feed the tubular material lengthwise of said spreaders.
3. In a machine for slitting tubular material, thecombination of a rotatable slitting knife, a lpair of cooperating spreaders ad-` and Il. ln umuchine Vtor slitting tulnili'irlniu` teriil lengthwtee, thecombination of :i eupporting ilrnniey u erosie liar n-lounted thereon, u, pair et npreuders :uljuetnbly `mounted upon ,Suid cross har, u rotatable slitting` knife inountetfl Yupon `Seid( supporting rnine between Suid @prendere and aten interme- `(lfiete point thereof, Convex feed rollererevrotatable slitting linile mounted on sind auxiliary supporting menne, fu driven lieed roller curriedxhy sind mlxiliury` .eupmrtintll ineens, a carrier udjuetehly. mounted on `id hed-plate, u driven l'eed roller Supported upon .Suid carrier and adjustable thereby towzird and away 'from the leoi'npunion feed roller, e pair of cooperating sin-endors over which the tubular material passes to the elitting knife and feed rollers` mounted upon seid pre-aders and cooperating 'with Huid driven lieed rollere to leed the tubular lizilnfie lengthwise ot said splendere.
6. In u' machine or slitting tubular niuieeegeis tei'iiilQthe coinliinution ol elittinn` meelur nient, epreodere :'lt'ljnet-uhle in directions lon'nrdunnduw@y Vfrom euch other over u'liieh the/tuhulzir inuterinl pue to miel nlititiiin4 nieehuniein, feedingdenier-ie loeuterl partly within Suid Sprendei's und purtlyY exterior-ly thereot for upon Suid cross linnn rotulnlile elittinn` lt'ni I'e mounted upon Suid supporting' 'treme le tween seid spreader-s und nt: un .intermediate point thereo'l", convex feed rollerl renilently inlounted on Suid Spreuderu, concave :leed `rollers cooperutiinnl with uuid convex Al'eed rollers, u carrier Ator one ol .mid coneui'e ileeil. rollere :uljuSt-:ihly mounted upon Huid Sup-- porting' il'rnme for :uljnetinnl Suid convex Yfeed roller toward und uu'uy lj'rom the troop eruting concave leed roller, mecliuniem lor actuating Aseid concave ifeed rollers? und L .friction roller` ell'eetive upon the slit moterizil 'for plueilu;` Enid materiel under teneion ut the slitting` point.
in testimony whereof l have hereunto set my hund.
ORRN l5. Ztllilhl.
I. Ii
(lll
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566639A (en) * 1946-06-05 1951-09-04 Washington Mills Company Cutting machine
US3194199A (en) * 1963-03-28 1965-07-13 Continental Can Co Can end unpackaging system
US3289510A (en) * 1965-10-12 1966-12-06 Alamac Knitting Mills Inc Splitting machine
DE1560132B1 (en) * 1966-08-13 1972-06-29 Samcoe Holding Corp Device for continuous edge consolidation of tubular knitted fabrics
US3699746A (en) * 1971-04-09 1972-10-24 Basic Packaging Systems Inc Apparatus for filling a chain of connected bag elements
US3710663A (en) * 1970-02-02 1973-01-16 C Ekelund Hosiery slitter
US3817017A (en) * 1970-10-13 1974-06-18 O Titchenal Bag construction and method for filling the same
EP0296471A2 (en) * 1987-06-25 1988-12-28 Peter J. Biesinger Method and device for changing the course of the stitch rows in a knitted tube

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566639A (en) * 1946-06-05 1951-09-04 Washington Mills Company Cutting machine
US3194199A (en) * 1963-03-28 1965-07-13 Continental Can Co Can end unpackaging system
US3289510A (en) * 1965-10-12 1966-12-06 Alamac Knitting Mills Inc Splitting machine
DE1560132B1 (en) * 1966-08-13 1972-06-29 Samcoe Holding Corp Device for continuous edge consolidation of tubular knitted fabrics
US3710663A (en) * 1970-02-02 1973-01-16 C Ekelund Hosiery slitter
US3817017A (en) * 1970-10-13 1974-06-18 O Titchenal Bag construction and method for filling the same
US3699746A (en) * 1971-04-09 1972-10-24 Basic Packaging Systems Inc Apparatus for filling a chain of connected bag elements
EP0296471A2 (en) * 1987-06-25 1988-12-28 Peter J. Biesinger Method and device for changing the course of the stitch rows in a knitted tube
EP0296471A3 (en) * 1987-06-25 1989-02-08 Peter J. Biesinger Method and device for changing the course of the stitch rows in a knitted tube

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