US1610407A - Half lap for combing textile fibers - Google Patents

Description

Dec. 14 1926.

W WOOD HALF-LAP \FOR COMBING TEXTILE FIBERS Filed August 6. 1923 Patented Dec. 14, 192 6. I

a rimaran STATES.

ears w a rice;

WILLIAlVLWOOD, F FA L RiVER, MASSACHUSETTS, ssIGNoR r0 Jar/[Es K. LANNING,

' OFIFALL RIVER, MA SSAGI-IUSETTS.

HALF LAP FOR COMBINGTEXTILEFIBEBSJ Application filed August 6, 192a ser a no. lessees.

This invention relates to'the art of combing yarn, and isparticu'larly concerned with V the construction and arrangement of thesocalled half laps which constitute the comb- 5-ing elements of acombing machine toupull or combout the short fibers from the staple, and at the same time lay-the remammg fibers lengthwise in parallelism with one another.

7 series of separate, sections secured to a half} round shell or: base, each section carrying-v a row of spaced needles pro ectmg outwards 151 lyjbey0nd the peripheral face'zof its supporting section. Such a construction, hoW- ever,,entails'serious practical difiiculties. If

one row ofineedles in the forward part of the combbe injured all the sections to. the 2 rearward must be removed to permit the re- .Inovaland replacement 7 of the imperfect.

sent away forrepairsfnecessitates carryinga large number of extra half-laps besides involving large expenses for repairs;

'4 Furthermore, half-laps as heretofore cone. structed caused much trouble and loss' by reason ofthe accumulation'of flocks of lint which adhered to the surface and preventedh the comb "from properly performi g it Work} 1 holding means abutting against opposite 9- sidesof the front and rear sides of the butt 1 ends of thejneedlesin such manner that the" needle-supportingwall, on the forwardaor underside ofthe needles, retreats ffarthei lint in frontof each row of needlesfi's eifec-f tively prevented, probablydue toithe "fact that'the-cl'earing brushes actmore'eifective' ly to remove the lint from between the needles; Furthermore, the holding member,

bed or matrix which formsthe'anchorage or support for each row offneed-lesfis-so constructed and-dimensioned, with reference to The active combing member or half-lap as heretoforemade has been built up 111 a;-

bars or comb elements.

bar receivingslots.

volving supportings'haft or shell? v In the process of I manufacture, the outer or peripheral surface4,=ofthe supporting member 1," is described on a circle that is," slightly eccentricto the-axis of rotation. In

the needle-carrying barslthat no cracks or crevices are found in the completed halflap for the lodgement or adhesion of lint. Other features relate to the means for supporting and securing the needles in place, all of which will be described in detail in the following specification and Will finedinthe annexed claims.

In the accompanying drawings I have illustrated different forms of constructionand arrangement"embodyinglthe principles 7 of this invention, ina'which:

Figure 1 isianend elevation of ahalf-lap Y constructed according to this invention and secured to its revolving support.

Figure 2 is a longitudinal section through said half-lap on theplane of the forward, wall of the comb-retaining slot, showing;' the means for fastening the comb-baror element in place.

' Figure 3 is anend elevation of a modified form of half-lap secured to; its revolving support in which common fasteningor lockv V ing means are employed for all the needle Figure 4 isalongitudinalsection of the modification ofvFigure 3 ma plane coinci-v dent with the front wall of one of'the comb.-

- Figurei'5, is an end elevation of another modification-in which the needle-carrying or comb-bar is made inlongitudinalsections. v

,Figure 6' is a longitudinal section through v 1 the half-lap shown in'Figure 5, ona'; plane With theseobj'ects in view-: I provide fa half-lap construction comprising successive .rows' of spaced needles-firmly supported bycoincident'witha front wall of one of the comb-retaining slot o v @In the'practice of this invention," accord segment of-a hollow cylinder which arcuate bed member 1s formed withyits inner surface 2, concentric with the axis of its revolution, d

and with the periph'eral surface of 'its reter of tlie are forming the outercurved sur- 7 face of thecomb-holdmg member is coinci-- dent with the intersection of the lines y.y and w In the outside of the matrix or bed- I, I cut a r e at bene ted-re ots 5. he r ception of the needle-carrying bats forming;

the comb elements. These slots or channels are inclined forwardly of the. intersecting radii, that is, in the dlrection of revolution of the half-lap which is indicated by the arrow in Figure 1. e g

The cutting of these slots leaves a series of longitudii alf peripheral ribs 5, whose front and rear walls form the boundary of' twosuccessive slots. The, outer faces of theseribs are cut away as to, leave the rear edge of each rib which forms the; front wall of each slot lower than the front edge. of each. rib which forms the rear wall of the next slot advance or, to state: it dififerently, the front edge of each sl'ot is nearerto the axial center and farther fromthe pointsof its row of needlesth-a-n istli-e rear edge oii each slot, due to the lengthwise recess formed as aforesaid.

The comb elementcomp-rises flat bar 6-, rabbeted at its forwardandouter edge to form ashal-low channel for the reception ofilla? need' les which are 'pl ace'd side by side along that portion of the bar with their outer ends uniformly spaced apart, the needles being-soldered tof'the thin part of tl1=ebar (5', to securetl ie-min paral lelism on bar. 7 I are so dimensioned that the points oi all needles in each row, as Well as all the rows of needles, are equidistant from the axial cente-r of rotation. Owing to; the inclination oi successive rows of needles and to the eccentricity of the curve, coincident with the higl r-points of, the ribs 5', to; the axizali center, the points 'oi'ithe need l'es, while moving: through the. same circular path oat revolution, project fartherand farther beyondi the outer. surfacev of: the bed or: matrix from theurear: row to the front row ot- 0t needles, to. lie. flush with the. adjacent edge; oi: the Iiib and each comb element ismadeto exactly occupy or fill the. slot for which it intended so. as to! leave. no

crack or crevice: tor thecatching of lint;

15118 cuttlng; away of: the. rear edge por- I tion of each.rilbtoicaiuseaittoiliexctarther from,

the point or. nearer to; the axial centerthan does, the: supporting material on; the rear" side of each'row off needles-g. I have found,

- results; producing. an; offset which substan tiality: eliminates the-heretofore very trouble- 80 11131ElflCLllllliillfiitIOH.Oif lint'which. has usually; lodged or wedged. in. the. angzl-eibetween the forwardonunderside'otthe; needles. and

the peniphenal: surfiacei otthe. halr lap and.

The needle bars and the needles the tapered end ofthe fastening: screw 8',

whichistapped intoshort threaded holiesformed in the en-d v walls of eachsliot. By tightening these fastening screws each needlebar be properly adjusted l'engtlrwise and anchored to the bottom. of its suzpporting slot l a y The half-lap is secured to its shaft or re;- volving su-ppojrt i-n anvsuitasble: manner as by means: ofradial screws: 9, which pass: through projecting flanges 1, formed? on: the. rear and front sides of thebedt In Figure 3, I haveillustrated; a modified Y form ofconstrnctlion tor: seeming; the. needle.-v carrying bars in theholider or bed... In. this; case a single 'fiastening. element is employed for anchoring the whole series of bars and comprises, as". shown, an arcuate keyebar 16)), provided with an inwardly extending; flange. 10 overlapping the endv oi? the bed: 12., and provided with, a screw=receivi11g perform.

'tion intermediate of its: ends through which is: inserted. the. fastening. screw 13,, which. is; tapped. into the. end; face of the base or bed 12'. The. arrangement at the needles in this case, is: similar to that already shown Figures 11 2;.

It may prove tot ties: to make. the. needle bars; in short sections so that only one short. section needv be 1"8': placed in case of injury, instead ofithe en,- tirebar;.- with tliis. end: in view, I hate; shown llm'EIgHlBS 5:v and 6- a.- construc io in; which the needle-bars are composed. of'in. terinediate sections 2.0, and: end: sections 21,

be; advantageous in; pracformed with abutting; square: ends, the: sectionsbeing. held in position by; means longitudinal". rod or key 22, dimensioned. to. be. driven into the: longitudinal; groove formed partly in the: bar sections and: part.

ly in. the wall of the. retaining, slzot formed; in: the; bed plate 28. Lengthwise displace-r ment ot'theileeiy and barnlay be: pneventedi by the use of each key.:.. V.

For convenience. in. preventing the. insee. tion of the wrong. needle bar'iin. any panticur. lar slot, the respective bars; and slots may nutsi 2d,. on; opposite, ends Offi' be marked with; identifiying; letters [or numerals.

I/YhatI claim is: I 1. A halt-lap. for: combing embracing in its construction. plural rows: oi spaced] needles concentrically arranged;

textile fibers,"

side of said slot, and a needle-carrying ele-v ment secured in said slot, substantially as described.

A half-lap for combing textile fibers embracing in its construction a revoluble integral bed member provided with a serles of longitudinal slots extending obliquely to radial planes intersecting'them, the forward walls of the respective slots being substan tially cut away in an approximately tan-v gential direction to make them lower than the rearward walls thereof, a needle-carrying member inserted in each slot, and means for securing the needle-carrying members detachably in position, substantially as described.

4. A half-lap for combing textile fibers embracing a revoluble segmental. carrier provided with a plurality'of outwardly projecting'ribs separated by narrowslots, a series of needle combs snugly inserted in said slots to avoid the formation of any crevice in front of the combs, the" forward exterior edge of each .rib' extending outwardly nearer to the. points of the needles than does the rear edge of the next forward rib in contact with the needles, substantially" as described.

5. Ina half-lap for combinglfibers, the

combination of a longitudinally slotted ar cuate bed provided with longitudinal slots, 7 needle carrying members inserted in said slots to allow the needles to project outwardly, and removable fastening means adaptedto be threaded endwise into the slot a in the bed to engage and lock the needlecarrying members detachably inposition, substantially as described.

6. Inv a half-lap for combing fibers, the combination'of a longitudinally" slotted arcuate bed, comb elements, each comprising prevented, substantially as dea bar and a row of needles secured thereto,

inserted in said slots, said bar being provided with locking recesses and longitudinally' disposed fastening devices arranged to have threaded engagement in said recess and detachablylock the comb element in position, substantially as described.

7. In a half-lap for combing fiber, the combination of a longitudinally slotted arcuate bed, a series of comb-elements com prising a bar and a row of laterally projecting' needles secured thereto, said bar being made in longitudinal sections and being providedwith lockmg recesses, and means for engaging said recesses to secure sald elements firmly but detachably in operative posit-ion, substantially as described.

8. In a half-lap for combing fibers, the combination of an arcuate bed provided with parallel longitudinal slots in its periph-' ery, comb elements detachably secured in said slots,each element comprising a longi-' tudinal bar transversely divided into sections, and needles secured transversely thereof to project laterally outward, and common locking means engaging all said sections for detachably securing said sections in operative position in said described.

9. A half-lap for combing fibers, embracing in its construction a revoluble arcuate bed plate provided in its peripheral surface with longitudinal forwardly inclined slots, comb elements, each comprising a longitudinal .bar with a row of needles secured slots, substantially as j on its forward side to project beyond the outside edge of said bar, said comb elements beingsnugly secured insaid slots with their outer edges flush with the rear edges'of said Slots, and outwardly offset with relation to the forward edges of the corresponding slots, substantially as described.

10. Acomb member embracing a fiat bar longitudinally grooved inwardly from its edge to form a needle-receiving recess 'lengthwise of the bar, and a rowof transversely' disposed pointed needles secured side by side in said rece"s with their tapered points projecting beyond the edge of the bar, whereby the comb element is'adapted to snugly. fit into and completely fill a receiv-- ing slot in the arcuate bed of'the half-lap,

- substantially as described.

In witness whereof, I have subscribed the above specification. 7 g

- 7 WILLIAM WOOD.

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