US2224778A - Top clearer - Google Patents

Description

Dec. 10, 1940. c c s 2,224,778

TOP CLEARER Filed Feb. 16, 1939 A 3 Invenior.--

Patented Dec. 10, 1940 i 1 2 224 71 UNITED PPCI'IEIN'I'..v OFFICE} 1' "'TOPULEARERT- .clauaeealias, wareshoals, s..c. ApplicationfEebruary;16,1939,'Serial No 256;8(l5

' hroleim. (or. 19 -139) This .invention relates to an improved top disposed in an operable position, as illustrated clearer for use with drawing and spinning'frames in "Figure 3,"-and' as best seen in Figure 1, the used for drawing and twisting roving or yarn blocksl aredisposediongitudinally of the board and is particularly adapted for the long draft 2 and in spaced-apart relationship relativelyto type of spinning frame employing endless coneach other, for a purpose which will hereinafter 5 veying or conducting belts. be described. The outer or under surfaces of the- It is a primary object of this invention to problocks I are bevelled transversely of the board 2 vide a'top clearer of simple construction designed so that these surfaces are disposed at an oblique to be mounted on the saddles of a spinning frame angle to the plane of the board. A plurality of 10 and having a plurality of corresponding dependstrips of flannel are secured across the under side 0 ing portions each adapted to engage an upper of the board 2 preferably by means of an adconducting belt to prevent the roving from laphesivecoating, not shown. Each strip of flannel ping the belt to thereby provideabetterand more 3 extends over a block I so that the blocks I uniform grade of yarn as well as lessening the form backing elements for portions of the strips 1 tendency to break down the ends. 3 and each strip 3 has an obliquely disposed por- More particularly, it is an aim of this invention secured across the oblique face of a block I. .tion to provide a board having a plurality of In Figure 3, a pair of delivery or drawing rollspaced depending backing portions having bev-- ers 5, and a pair of endless conducting belts 4 elled surfaces over which strips of fabric are disdriven by the rollers 8 and a pair of feed rollers 1 posed, the angle of said strips corresponding to 9, are shown,'which constitute a part of a con- 20 the angle of the upper portion of the upper conventional long draft spinning frame and which ducting belts so that said flannel covered bevform one set of drawing and twisting means for elled portions are each disposed to rest flush roving 6, any number of which sets may be against a portion of a conducting belt for clearmounted in a single spinning frame with each ing the roving and lint therefrom. of said sets disposed transversely of the frame Other objects and advantages of the invenso that the roving 6, which moves in the direction will hereinafter become more fully apparent tion as indicated by the arrows in'Figure 3, moves from the following description of the drawing, transversely of the spinning frame not shown. A which illustrates a preferred embodiment thereplurality of saddles, not shown, form a part of of, and wherein: the spinning frame and, are suitably disposed to 30 Figure 1 is a bottom plan view of the top bear against the upper rollers 5, 8 and 9 for clearer, pressing them downwardly toward the corre- Figure 2 is a fragmentary perspective view of sponding rollers 5, 8 and 9, respectively, so that the same, and the pairs of rollers will be positioned relatively Figure 3 is a transverse vertical sectional view to each other to frictionally engage the roving 6 35 of the top clearer showing it disposed with one for drawing it transversely therethrough.

of its clearer portions in engagement with a top Board 2 on its under side is provided with a conducting belt of a long draft spinning frame. plurality of spaced transversely disposed arou- Referring more particularly to the drawing, ately shaped grooves 1 which are adapted to enwherein like reference characters designate like gage the saddles for supporting the board 2 above 40 or corresponding parts throughout the different the spinning frame for positioning the blocks l views, the top clearer, as best illustrated in Figbetween the saddles so that they may depend ure 1, is particularly adapted for use with long downwardly to engage the upper inclined pordraft spinning frames of the type illustrated in tions of the upper endless conducting belts 4, as

U. S. Letters Patent No. 2,051,793, granted August seen in Figure 3. 18, 1936, to Fernando Casablancas, and entitled. The roving 6 is fed as indicated by the arrows Cleaning apparatus for high draft mechanisms so that it passes through the feed rollers 9 after with endless belts. which it is engaged and carried between the belts In Figure 1, a board designatedv 2 is provided 4, which are turning in the direction as indicated with a plurality of projections orblocks I which by the two arrows, adjacent the forward ends of 50 may be formed integral with the board 2 or which the belts in Figure 3, and then outwardly between may be suitably secured thereto in any desired the delivery or drawing rollers 5. As the roving manner. Blocks or projections l are formed in- 6 passes through the belts 4 loose strands of the tegral with or secured to the under side of the roving and particles of lint therefrom will adhere board 2 to depend therefrom when the clearer is to the upper belt 4 and would ordinarily be car- 55 ried on around the belt and unless removed would tend to block the belt and adhere to other portions of the roving. The board 2 when disposed, as illustrated in Figure 3, has each of its blocks I disposed to engage flush against the inclined upper portion of a belt 4 and as its bevelled face is covered by a portion of a fabric strip 3, the upper belts 4 are wiped by the flannel as they move upwardly so that the lint and loose roving carried on the periphery of the belt is removed.

Obviously, the number of blocks I, strips 3 and grooves 1 will vary depending upon the number of drawing and twisting mechanisms that a par-' ticular spinning frame is provided with, and

the size of the space between these parts will likewise vary depending upon the width of the belt and the space between each set'of belts.

Various other modifications and changes are likewise contemplated and may be resorted to, and the right is therefor expressly reserved to make such variations as do not depart from the spirit and scope of the invention as hereinafter defined by the appended claim.

I claim as my inventions A top clearer for long draft spinning frames provided with saddles for applying pressure to the rollers thereof, comprising a board having a plurality of spaced transversely disposed grooves in its underside each adapted to rest on a saddle of a long draft spinning frame for supporting the board above the spinning frame, said board having a plurality of longitudinally spaced depending projections, said projections being arranged in pairs with each of the grooves disposed between the projections of one of said pairs, the outer surfaces of said projections being bevelled transversely of said board, and strips of flannel secured transversely of the under side of said board and extending over said bevelled surfaces,

said flannel covered bevelled surfaces forming clearer elements adapted to bear against the conducting belts of the spinning frame for removing lint and loose roving therefrom.

CLAUDE CALLAS.

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