US2509982A

US2509982A - Top roll clearer for drawing frames

Info

Publication number: US2509982A
Application number: US781882A
Authority: US
Inventors: Charles D Miller; L S Lyles
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-10-24
Filing date: 1947-10-24
Publication date: 1950-05-30
Anticipated expiration: 1967-05-30

Description

May 30, 1950 Filed Oct. 24, 1947 TOP c. DIMILLER ET AL 2,509,982

ROLL CLEARER FOR DRAWING FRAMES 3 Sheets-Sheet 1 I 1 n 1% t luudj 2 gwwm /bouz CHARLL'S D. MILLER L S Lnzs 11956 Q- m. MILLER ETA! TOP ROLL CLEARER FOR DRAWING FRAMES 3 Sheets-Sheet 2 Filed 001;. 24

TOP ROLL CLEARER FOR DRAWING FRAMES Filed Oct. 24, 1947 3 Sheets-Sheet 3 rgr 1 T I 9/ Q a, 8 LE :2 Q),

gywnzm/tw Cam us 0. MILLER L 5 LYLES QUICK/M4112 Patented May 30, 1950 UNITED STATES 'PTENT OFFICE TOP ROLL CLEARER FOR DRAWING FRAMES Charles D. Miller and L S Lyles, Chester, S. 0.

Application October 24, 1947, Serial No. 781,882

3 Claims.

1 Thi invention relates to means for scavenging or removing loose'fibres, lint and theIike from textile rolls, in drawing frames, spinning frames and the like.

It is a well known fact that in the drafting of textile fibres, such as in roving frames, drawing frames, spinning frames and the like, loose fibres are accustomed to collect into bunches on the front rolls and cause the front rolls to eye-brow and then thesebunches of fibres or lint will be:

and rearwardly relative to the top rolls, by means driven by the machine.

It is. another object. of this, invention to provide clearing means for textile drawing rolls and the like which will not only contact the top rolls and remove lint and other loose fibres therefrom, but which will reciprocate backwardly and forwardly, with relation to the top rolls, to thus provide a very much better cleaning action than would be the case if the contacting means were stationary with relation to the rolls.

Someof the objects of the invention having been stated, other-objects will apear as the description proceeds when taken in connection with the accompanying drawings, in which Figure l is a front elevation of a section of a drawingframe and showing the clearer, board in raised position;

Figure 2 is a top plan view of a section of a drawing frame and showing the central portion of the cover above the clearer board brokenaway inorder to illustrate the invention;

Figure 3 is a transverse sectional View taken along the line 3-3 in Figure 2 and showing the clearer board in almost fully advanced position;

Figure 4 is a view similar to Figure 3 but showing the clearer board almost in its most rearward position.

Referring more specifically to the drawings, the numeral It indicates suitable bearing stands secured on a suitable support such as a board I I. Secured on the upper surfaces of these stands H] by any suitable means such as bolts [2 penetrating slots [3 are the rear bearings l4 and intermediate bearings and I6 and front bearfrom between the top and bottom rolls.

ings H. In each of these is mounteda roller neck l8 which is usually upported within a suitable sleeve l9. These roller necks are secured in any suitable manner such as: by threading into the ends: of the bottom fluted rolls 2 l,. 221 and 31 reading from. thesrear to thefront-of the drawing frame.

These bottom rolls are driven from any suitable means at the end of the machine, which is not shown. Resting on top of the sleeves [9: are the fixed sleeve members which are flattened on their sides-as at 28 to fit into the slots 21 of the bearings Hi to H inclusive, andin these sleeves 25 are rotatably mounted the end bearing portions 30 of the top rolls 3| which usually have a rubber, leather or cork covering 32. Suitable pressure applying means are applied to the top rolls to hold them in contact with the fluted bottom rolls but such pressure applying means is not shown, but these pressure applying means are usually hooked into the peripheral grooves 33 in the sleeves 25.

slivers are adapted to pass between the top and bottom rear rolls and forwardly and out It often happens that lint is picked up by the top rolls and the lint is collected on the top rolls into slubs or-bunchesandlater are transferred back into the silver or roving passing between the top and bottom rolls. Some means 'must be provided for properly cleaning these top rolls and pre venting the bunches of lint and loose fibres from being carried around by the top rolls anddeposited into the roving or sliver passing between the top and bottom rolls.

The supports it havesecured' thereto, by any suitable means such as a screw 4|], uprising brackets, 4! in which is oscillatably mounted a shaft 42. Also oscillatably mounted on the shaft 62 are bearing portions 43 which are integral with a steel or cast cover 4 which covers the top rolls, and the downwardly projecting wall portion 55 of the cover 44 is adapted to rest on top of the front bearings IT to limit downward movement of the cover 44.

Thus the cover 44 is pivoted on the shaft 42 and can be moved from the position shown in Figures 3 and 4 to an elevated position shown in Figure 1.

The lower surface of the horizontal portion of cover 44 has projecting downwardly therefrom a pair of spaced pins to and 5| which project through suitable slots 52 and 53 in plates 54 and 55 secured on top of a board 56. The lower ends of these pins and 5| are interially threaded into which are driven screws 58 having a washer 59 therearound to limit downward movement of the plates 54 and 55 relative to the pins and 5|. By this arrangement the downward movement of the board 56 is limited and the slots 52 and 53 allow back and forth reciprocatory movement of the board 56. This board 56 is covered with a felt cloth 60 on its lower surface, which extends up and covers the front and rear edges of the board and is secured on the top portions of the board 56. This felt is adapted to rest on the top roller coverings 32 by the weight of the board itself.

In order to impart reciprocatory back and forth movement to the board 56, there are secured in each end of the board screws 55 and 66 to which are pivoted arms 61 and 63 which extend rearwardly and are pivoted as at $9 and Ill to the up per ends of arms "H and 12 which are fixedly secured at their lower ends on the shaft i2. There is also fixedly secured on the shaft 32 an arm '55 to the lower end of which is pivota-lly secured as at 16 a connecting rod H which is pivotally secured as at 18 on a pinion 79 in an off-center position. The pinion 19 is mounted on a stub shaft 80 fixed in a bracket BI secured on a board 82 which is supported by brackets 83 secured to the brackets M as at 85. The board 82 is held in position on the arms 83 by means of bolts 81.

The pinion 19 meshes with a pinion 90 fixed on a rotatable shaft 9| mounted in a suitable bearing 92 and driven from the head portion of the machine by conventional means not shown.

It is thus seen that as the machine operates, and as slivers or roving are being passed through the sections of the drawing frames, that is between the top and bottom rolls, the shaft 9i will also be rotated, and this will impart reciprocatory back and forth motion to the board 56 to move it forwardly and rearwardly to thus wipe the lint and other fibres collected on the rolls and especially the top front roll to thus prevent its eyebrowing and casting off bunches of fibres into the yarn to form slubs and other imperfections.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims.

We claim:

1. In a drawing frame and the like having top and bottom rolls, a cover disposed above the top rolls, an osoillatable shaft at the rear of the frame on which the rear edge of the cover is pivoted, a pair of downwardly projecting pins extending from the lower surface of the cover, a board disposed between the pins and having a plate secured to and extending from each end thereof, each of the plates being slotted in a direction transverse to the axes of the rolls and through which the pins are adapted to project, means on the lower ends of the pins for supporting the board when the free end of the cover is raised, said board having a felt covering on its lower surface for contacting the top rolls, and means connecting the board and the oscillatable shaft for imparting reciprocatory movement to the board in a direction which is transverse to the longitudinal axes of the rolls.

In a drawing frame and the like having top and bottom rolls, a cover disposed above the top rolls, an osoillatable shaft at the rear of the frame on which the rear edge of the cover is pivoted, pair of downwardly projecting pins extending from the lower surface of the cover, a board disposed between the pins and having a plate secured to and extending from each end thereof, each of the plates being slotted in a direction transverse to the axes of the rolls and through which the pins are adapted to project, means on the lower ends of the pins for supporting the board when the free end of the cover is raised, said board having a felt covering on its lower surface for contacting the top rolls, a pair of arms fixed on the osoillatable shaft, 2. connecting rod between the free end of each arm and an end of said board for imparting oscillatory movement to the board in a direction which is transverse to the axes of the top rolls.

3. In a drawing frame and the like having top and bottom rolls, a cover disposed above the top rolls, an osoillatable shaft at the rear of the frame on which the rear edge of the cover is pivoted, a pair of downwardly projecting pins extending from the lower surface of the cover, a board disposed between the pins and having a plate secured to and extending from each end thereof, each of the plates being slotted in a direction transverse to the axes of the rolls and through which the pins are adapted to project, means on the lower ends of the pins for supporting the board when the free end of the cover is raised, said board having a felt covering on its lower surface for contacting the top rolls, a pair of arms fixed on the osoillatable shaft, a connecting rod between the free end of each arm and an end of said board for imparting oscillatory movement to the board in a direction which is transverse to the axes of the top rolls, means for driving the osoillatable shaft comprising a driven shaft, a pinion on said driven shaft, an eccentrically mounted crank pin fixed on one side to the pinion, a lever arm fixed to the osoillatable shaft and a connecting link extending between and pivotally connected to the eccentrically mounted crank pin and to said lever arm.

CHARLES D. MILLER.

L S LYLES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PA'I'ENTS Number Name Date 602,626 Matteson Apr. 19, 1898 658,918 Keach Oct. 2, 1900 FOREIGN PATENTS Number Country Date 3,500 Great Britain 1914