US1272013A - Comber-casing. - Google Patents

Description

F. L. CROCKETT.

COMBER CASING.

APPLICATION FILED DEC. 10, 1915.

1 ,272 ,0 1 3 Patented July 9, 1918.

2 SHEETS-SHEET I.

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F. L. CROCKETT GOMBER CASING.

APPLICATION FILED 05c 10, Wis.

1 ,272,0 1 3, Patented July 9, 1918.

2 SHEETS-SHEET 2.

FRANK L. CROCKETT, OF NORTH UXIBRIDGE, MASSACHUSETTS, ASSIGNOR TO THE WHITIN MACHINE WORKS, 013 WHITINSVILLE, MASSACHUSETTS, A CORPORAF TION OF MASSAGI-I'USL I-"J3Sv COMBER-GASING.

Specification of Letters latent.

Patented July 9, 1918.

Application filed December 10, 1915. Serial No. 66,049.

To all whom it may concern:

Be it known that I, FRANK L. CROGiiE'r'r, a citizen of the United States, residing at North Uxbridge, in the county of Worcester and State of Massachusetts, have invented the followingdescribed Improvements in Comber-Casings.

The improvements concern the inclosure of the comb cylinder and scavenging apparatus of combing machines and the combination thereof with the parts of the combing mechanismwhereby the machine is adapted to confine the lint and fly generated by the combing process so as to prevent its collection on exterior parts and journals and thereby avoid the necessity of frequent stoppages for cleaning. With combers as at present and heretofore constructed it is necessary to turn off the power and remove the accumulations of fly and lint some two or three times each day, in order that such waste material may not contaminate the combed sliver; by the improved means here in disclosed a cotton comber, for example, be kept in a clean and safe running condition for long periods, and the avoidance of the idle periods results in a material increase of productiveness as well as also in a saving of labor. The principle of the invention and the bestmode in which it has thus far been embodied are illustrated in the accompanying drawings, in which Figure 1 is a cross section through oneof the heads of a well known type of multiple combing-head cotton comber;

Fig. 2 a perspective of the inclosure or casingitself with parts broken away; and

Fig. 3 a sectional detail of packing clamp.

The several parts of the comber shown in Fig. 1 comprise the feed plate 1, on which the lap advances to the feed rolls 2; the nipper mechanism 3 which receives and holds the forward end of the lap for engagement by the needles of the comb cylinder; the detaching roll 4 which cooperates with the detaching segment 5 to detach the tuft; the top comb 7 the piecing rolls 8 which receive and piece the detached and combed tufts, producing a continuous sliver thereof, and the sliver pan 9 which receives said sliver. The piecing rolls 8 may be understood to have an alternate forward and backward motion to effect the piecing action, andin the mechanism shown they are free of contact with the detaching segment 5, which however engages the detaching roll on each revolution. The combing cylinder which comprises the needle half-lap and the detaching segment 5 is carried on a main or comb shaft 6, which is common to all the combing heads of the machine, being journaled between each head, on intermediate frame uprights 10, mounted on a main table girder 11, according to usual design. The forward piecing roll as well as also the lower feed roll are similarly formed on shafts which are common to all the combing heads and journaled in these same uprights as will be understood by those skilled in the art. The bracket arms 12, secured to the rear upper ends ofthe intermediate frame uprights, form the supports for the springs which press the two feed rolls 2 together, and they also serve to support the casing as presently described. The nipper knife is operated by the usual nipper rods 13 from the main nipper shaft 14, also journaled in the intermediate frame uprights. The sliver pan 9 is carried on brackets 15, clamped to a rod 16 fixed in the series of frame uprights, and the nipper mechanism and top comb are likewise carried on the upper margins of the same uprights. The rotary cylindrical brush 1?, rotating in. the direction indicated, cleans the comb cylinder, as usual, and is itself cleaned by the cardclothed dofling cylinder 18, and the latter is stripped of its accumulated waste by the oscillating doffer comb 19 carried on the doifer shaft 20. The doifer cylinder shaft is likewise journaled in the intermediate uprights and the doffer comb shaft 20 is journaled in brackets 21 projecting in rear thereof. The various shaft journals of the machine are thus all disposed upon, or in the planes of, the frame uprights, and the working parts, that is to say, the comb-cylinder, brush and dofling cylinders, occupy the intermediate spaces, all as common in this class of machine. For further explanation of the said common construction, reference may be made to Patent No. 822,47 9, but it will be understood that the invention is not confined to any particular comber construction and may be employed on single or multiple-head machines with equal results.

The new type of easing or closure is efs fective for the purposes above indicated,

principally by virtue of its end wall construction which for-ms a screen or barrier between the rotating comb and scavenger cylinders and the various journal seats on the frame uprights, and thereby prevents air circulation in this region of the machine, such as would tend to deposit fly on the machine parts. The front and rear walls also cooperate to the same end and are specially designed for the purpose, being at the same time arranged to be readily removable.

Referring to the said casing, its front wall is constituted by a sheet 22 of tin or other material, extending imperforate from a point closely proximate to the forward piecing roll 8, downwardly and rearwardly to a point adjacent the lower part of the doffer cylinder 18, at which point it turns abruptly downward to the girder 11,, to which it is attached as indicated in the drawing. The upper part of this front wall is held, removably and adjustably, to the fixed rod 16 by means of a pair of attachment ears 23 (Fig, 2) bolted to the sliver pan brackets 15, and the junction with the piecing roll 8 is effected by means of a strip of felt 23 secured to'the upper edge of the wall, By adji' stment of the attachment ears to the pan brackets, this strip can be brought into substantial contact with'the piecing roll to close the gap that would otherwise exist at this point, according to the principle explained in Patent No. 864,197, A wedge -shaped filler 24. is secured to the real or inner face of the front wall 22 to occupy the space between the comb cylinder and the rotary brush, although obviously the wall itself could be ben to conform to this space ifpreferred, which casethe filler piece would not be necessary.

The front wall 22 is equipped with end wall sections 24L permanently fixed by soldering or otherwise to its opposite upright edges, and the horizontal dimensionsof the wall is sufficient, to bring such end walls into. the space between the comb. and brush cylinders and the frame uprights and sufficiently close to the latter to accommodate the usual traverse 0f the rotary brush. These end sections are cut out to fit or accommodate the comb, shaft 6 and the brush shaft 17, the former by means of sen1i-cir cular notches 25, and the latter by means of wider notches 26, so formed and related to the machine centers as to permit the said front wall to he slipped into the position in-. dicated in the drawings or removed therefrom without removing any of the operating comber parts. The end wall sections 24, thus constitute about half. of the closure at the ends of the comb cylinder and, brush. The other half or part is constituted by the supplementary end sections 27 which are he d in p ace by se ure a achment to the machine frame, similarly to the front portion as already described. These supple mentary end sections 27, as shown in Fig. 2, are cut with semi-circular notches 28, complemcntary to the notches 25, and therewith provide a circular opening for the comb cylinder shaft 6, which fits it fairly snugly. They are also cut with notches 29 to accommodate the brush shaft 17, but not so snugly, and the said sections are held in the same planes as the end walls 24 and so as to form close joints therewith by means of the edge groove'or crevice formed by the semi-circu lar plate or sheet 30 surrounding the notch 25 of the front section, and also by means of a similar seat formed by the clip members 31 soldered to the said front section, just in rear of the brush shaft. The supplementary sections 27 are set in these seats and then secured to the bracket arms 32, which depend from the spring brackets 12 above described, and byv means of which the said sections become rigidly mounted in place, and with the front sections constitute the barrier above alluded to. Obviously the clip seats can be formed on either section of. the end wall. and 28 to fit, the comb cylinder shaft with suflicient clQSBHeSs to exclude any objectionable inflow of air at this point, but for convenience of assembly the brush shaft notches require to be large and the intervening gap is bridged and closed by a packing in the form of leather washer 3.3. This washer split as shown, so that it can be "slipped over the brush shaft, (in the present case outside of the casing) and then be clamped to the casing around the brush shaft as shown in Fig. 2. For this purpose the clamp ring 3a is also split, being made of It is possible to size the notches 25 v heavy spring wire as indicated, and secured I by a screw or bolt 35 to the end wall sectiOn 27 as shown more clearly in Fig. 3. This style of. split packing is preferred and CO1 stitutes part of the invention, but obvious y other means of establishing a Substantially complete obstruction to air flow may also be resorted to. 7

Each supplemental endwall 27 provided with a marginal shelf rail formed by a narrow strip of metal '36 soldered to its inner face and forming the support for the removable rear wall or over of the casing. This rear wall is formed of two sections 3.7 and 3.8, Thev former is curved substantially concentric .to the comb cylinder and pro-. vided with bolts 39 whereby it may be locked t bolt-holes in the'end'walle 2 and also with a handle l0 whereby it may be conveniently lifted and removed when unle k d- The ot er se i 3 is supplied with similar bolts 39 and handle 40, and, when in normal position meets the upper section 37 with a close joint situated within the V-sh ped space between the comb e3 1:-

inder and the brush; The sectional end and rear walls of the casing extend rearwardly over the ends and upperside of the doffer cylinder 18 and around the upper part of the shaft of the latter cylinder, and thus there is formed a substantially perfect inclosure for those parts of the comber which are between the detaching and piecing mechanism at the top and the dofling cylinder at the bottom. The obstruction to air ingress adjacent the shaft journals by the sectional end walls, is supplemented by the substantial closure of the rest of the casing. The closely assembled rolls and nipper jaws constitute obstruction to upward flow, and the doffer cylinder constitutes at least a partial obstruction to downward flow, so that while the air within the casing may be agitated by the rotation of the. cylinder and brush, there is no circulation from or to it, with the effect that the air about the journals and other lubricated parts is maintained relatively quiescent and the greatest part of the flulf and fly is retained in the casing and either restored to the lap or dis charged in the waste receptacle represented by dotted lines in Fig. 1. The largest openin g from the casing is at the bottom beneath the dofling cylinder so that any outward air flow will be directed to the waste receptacle rather than upward through the detaching and piecing rolls, although the deposit of some of the fly on the lap'is not objectionable if it is clean. v

As shown more plainly in Fig. 1, the upper section 37 of the rear wall, when in place is substantially in contact with the under side of the lower nipper jaw, or at least very close to it. tends beyond the upper edge of the section 37, and also beyond the joint between the end wall sections, where it abuts with a continuing rail or flange 36 secured to the front end section 24. This extended rail serves as a guard and further closure at the upper part of the casings, at the end of the comb cylinder and shields the journals of the detaching and piecing rolls and adjacent parts from fly that might emerge at that point. The shelf at other points serves to prevent escape of air and fly at the junction between rear walls and end walls, as will be obvious.

I am of course aware that cotton combers have heretofore been equipped with the covers or casings for covering the scavenger brush and doft'er, but in no instance of which I am aware has any such cover served to prevent air currents over the lubricated journal parts and thereby eliminate the necessity of frequeent vcleansing and the consequent delay, and I believe myself to be the first to have discovered that by such means as I have above described, the now common idle periods in the operation of The shelf-rail 36 ex-v is no limitation to any particular form or detail of structure.

I claim:

1. In a comber of the kinddescribed, the combination with the comb cylinder, doffer brush and dotting cylinder, of a casing therefor comprising front and rear walls and sectional end walls, the latter being fitted around the comb and brush shafts, and serving to obstruct air flow over the ournal portions of such shafts.

2. In a cotton comber, the combination with the comb cylinder, rotary brush and doffer cylinder, of a casing comprising a fixed front wall having end wall sections permanently aifixed thereto and shaped to accommodate the comb and brush shafts, and supplementary end wall sections engaging said first mentioned end walls from the opposite sides of said shafts.

3. In a cotton comber, the combination with the comb, brush and doffer cylinders, of an inclosure therefor comprising a fixed front wall having end wall sections permanently affixed thereto and shaped to accommodate the comb and brush shafts, and complementary end wall sections, rigidly fixed to the frame of the comber.

4:. In a cotton comber, the combination with the comb cylinder, rotary brush and doffer cylinder, of a casing inclosing the cylinder and brush, having end wall sec tions provided with seats on the edges thereof, complementary sections seated in said seats, and a removable rear wall.

5. In a comber, the combination with the comb cylinder, doffer brush and dofling cyl inder, of a casing therefor comprising front and rear walls and end walls, the latter embracing the comb and brush shafts, and closing in the ends of the comb cylinder and brush, and a packing applied to said end walls around one of said shafts.

6. In a comber, the combination with the comb cylinder, rotary brush and doifer cylinder, of a casing inclosing said parts at their sides and ends, the end walls being sectional and embracing the brush shaft,

and a split packing clamped to the end walls and around said shaft.

7. In a cotton comber comprising piecing rolls, comb cylinder, rotary brush and dofler cylinder, the combination of a sectional casing for said cylinder and brush provided with means for shutting ofl ingress of air thereto at the ends and comprising a split packing and a split packing ring, overlying the junction between sec tions.

' 8. In a cotton comber, the combination with the piecing rolls, comb cylinder, rotary brush and doifer cylinder, of a casing inclosing the ends and sides of the comb on said bearings.

9. In a comber, the combination With the comb cylinder, rotary brush and dofier cylinder, of a casing comprising fixed end Walls and a rear Wall formed in tWo sections, provided with independent means for securing them to the end Walls.

10. In a comber, the combination of a casing for the comb cylinder and rotary brush, comprising end sections closing the ends of said cylinder and brush and a removable Wall and means for bolting the latter to the casing.

11. In a comber, the combination with the piecing rolls, and the comb, brush and doffer cylinders, of a casing or inclosure for said cylinders adapted to confine the lint and fly, and a guard device extending beneath the journals of the said piecing rolls.

In testimony whereof I havesigne'd this specification in the vpresence of two Wit- OSCAR L. OWEN, CHARLES H. EARNSHAW.

Copies of this patent may be obtainefi for five cents each, by aildressing' the Commissioner of Patents, Washington, 11,0.

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