US1692458A - Bobbin support - Google Patents

Description

Nov. 20, 1928.

J. V. MANN ET AL BOBBIN SUPPORT Filed Aug. l2. 1926 llllll Patented Nov. 20, 1928.v

UNITED. STATESv PATENT oFFicE.

JOHN v. MANN AND LOUIS B. HASBROUCK, OF ELIIIEA, .NEW YORK, ASSIGNOBS TO ECLIPSE TEXTILE DEVICES INC., OF ELMIRA HEIGHTS;"NEW YORK.

BOBBIN SUPPORT.'

vAppiitmiitm mea august 12, 192e. serial No. 128,778.

This invention relates to bobbin supports and aims to provide an improved means for mounting roving bobbins on the creels 'of spinning frames and the like.

I It has long been customary to mount the roving bobbins on the creel boards of a spinning frame by passing a creel skewer through each bobbin, inserting the upper end of the skewer in a hole in they upper creel board, and

resting the lower end of the skewer in a cup and this back'draft, being irregular, causesv irre ular stretching of the rovings, which iesu ts in the failure to produce uniform yarns. An object of the present invention is to mount the bobbins so as to eliminate objectionable back draft on the roving-s. A further object is to facilitate the cleaning of the creel boards andthe changing of the bobbins, thus reducing the amount of labor required in tending a spinning frame. A still further object is to provide an improved bobbin support which may easily be applied to the creel boards of existin Is inning frames.

In a device em o ying the invention in a 85- form which we now consider most desirable, these objects are attained by roviding a bob.- bin support which has a free y rotatable bobbin holder depending from an upper creel board of the frame. The rotatable holder is 40 adapted to enter the upper-end of the bore `of a bobbin, and is provided with resilient means for holding the bobbin by engagement with its inner surface. The lengthof the holder is materially less thanl that of a bobbin, and is no greater than the difference between the distance which se arates the creel boards, and the length of abo bin. The bobbins may, therefore, easily be applied to and removed from the holder. When a bobbin is on a holder,.its lower end is entirely free and is a some distance above the lower creel board, so that it in no way interferes with the cleaning of the creel board, and Aso that any lint it results from the fact which may collect on the creel board before cleaning can in no way interfere with or retard the rotation of the bobbin.

The depending rotary holder is mounted on a combined thrust and rotary bearing, which is positioned inside the bobbin near its upper end and, conseluently', Well above the middle`` of the bobbin. Means'are provided to prevent Because of the resilient character of the means by which it is held, the bobbin is free to tip slightly with respect to the bearin of Vthe holder. The bearing .is of the antiction type so that the holde'rand' bobbin rotate freely without causinigjlany material back.

draft on the roving, w e, at thesame time, that .the collection of lint cannot retard the rotation, and thefact that the bobbin rotates without wabbling, that such slight back draft as exists is substantially uniform, and, therefore, causes substantially no irregularity in the yarn.

Other objects and advantages of the invention are-hereinafter explained inv connection' with a detailed description of a specific bobbin support embodying the invention. In the accompanying drawings,

.wabbling of the holder during its rotation.

Fi 1 1s a transverse sectional elevationof the upper part of a spinning frame of usual construction showing the creel provided with bobbin supports embodying the invention;

Fig. 21s a large scale axial section of one of the bobbin sup orts shown in Fi 1, showing part of a bob in supported by 1t; and

Fig. 3 is a section on the line 3--3 of Fig. 2.

The bobbin support shown' in the drawings has a central bolt or stud 10 threaded at its up r end and provided at its lower end with a at head 11, referably" formed integral with the bolt. T e bolt carries near its head, two oppositely-facing cones 12,13, which provide the inner races for two sets of bearing balls 14, 15. Above the upper cone 13, the bolt carries a spacing sleeve 1ti,`and above this sleeve is a dust cap 17 having a depending flange 19. The upper end of the bolt rojects sufficiently above the dust cap to pass t rough a hole in the ordinary creel board D of a spinning frame and to project above the board suficiently to ermit the application of a nut18 to the threa 'ed upper end of the bolt. It should be noted that when this nut is tightenedit holds the bolt firmly in the creel board, and holds the cones, spacing sleeve, and dust cap, all firmly in fixed position on the bolt. I

Depending from the bearing provided by the cone 12, and the balls 14, is a rotary bobbin holder 20 which has the form of a sleeve whose external diameter is slightly less than the internal diameter of a roving bobbin. An internal annular boss 2,1 is provided in the sleeve 2() near its upper end. This boss pro'- jects inwardly between the balls 14 and 15, so as to provide the outer races for them, and to cooperate with the cones and balls in p roviding a bearing vwhich resists end thrust and prevents wabbling of the bobbin holder. The upper end of the-sleeve 20 lies just within the depending flange 19 ot' the dust cap 16.

Resilient means are provided to engage the inner surface of a bobbin and hold it upon the sleeve 20. To provide for such means, the portion of the sleeve 2O below the boss 21 is provided with two sets ot' diametrically opposite holes 22, 23. Two expansion members 24, 25 extend diametrieally across the sleeve 20 `and have their outer ends projecting through the holes 22,23. Each expansion member consists of two headed rivets 2G and a compression spring 27. The heads ot the rivets are provided with annular lips 29 which normally rest against the inner wall of the sleeve, and projecting hemispherical or conoidal bosses 30, which project through the holes in the sleeve. The stems of the rivets are surrounded by the spiral compression spring 27, which holds them in alignment. The inner ends of the stems are spaced a little distance apart.

The sleeve 20 is provided with a stop to prevent a bobbin placed on it -from being pushed upon the sleeve far enough to bring its upper end into contact with the upper creel board, thus impeding its rotation. In the form shown, this stop consists ot a spiral tension spring 32 extending around the annular groove 33, provided by the boss 21, and having its ends fastened together. This spring limits the extent to which a bobbin may be pushed up along the sleeve, by engaging the small internal shoulder S, with which roving bobbins R are provided near their upper ends. At the same time, the peripheral surface of this spring resiliently engages the enlarged bore of the bobbin above this shoulder, `and thus cooperates with the expansion members 24:, 25 in holding the bobbin securely upon the sleeve.

It should be noted that the bobbin holder which has been Ydescribed tured at small costs, not only because of the simplicity of the parts of which it is composed, but also because it may be assembled easily in the following manner The bolt 10 is held with its head downward, and the cone 13 and the balls 14, held in a ball retainer, are placed around the bolt. The

may be manufac:

on the balls. The balls 15, the cone 13, the

j spacing sleeve 16, and the dust cap17 are then placed about the bolt in the order stated. The expansion members 24 and 25 are then bent and sprung into position with their heads in the holes 22, 23. The upper expansion member 25 serves to prevent the bolt 10 from dropping out of the sleeve, and this holds the parts in assembled condition until they are firmly locked in position by the nut 13- when the bobbin holder is applied to a creel board.

The use of the device described is illustrated in Fig. 1, which shows the table A, the thread board B, thedrawing rollsC of a spinningframe of usual construction provided with three superimposed creel boards D, E, F, for supporting two tiers of roving bobbins. Bobbin supports of the form which has been described, are applied to the frame by insertinor their bolts 10 in holes in the upper and middle creel boards l) and E, so that their rotary holders 20 depend from these creel boards. It will be noted that the holders arev `so short that there is plenty of room between the lower end of each holder and the upper surface ot' the next creel board below, to permit the placing of roving bobbins on the holders, and their removal therefrom. '1t will be noted also that the bobbins which are mounted on the holders have their lower ends entirely free and some distance above the next creel board below them, so that it is easy to remove lint which collects on the creel boards. It is apparent also that because ofthe fact that the bearings are at the upper ends of the bobbins and are protected by the dust caps, lint can in no way retard the rotation of the holders and bobbins.

While the vnew bobbin support is, as above explained, adapted for use with the creel boards of existing spinning frames, it is apparent that in new spinning frames designed to be equipped with the new bobbin supports, the lower creel board may be altogether omitted, and the upper and middle creel boards may be replaced by metal bars with holes for the bolts of the bobbin support. With this arrangement, all the lint from the roving bobbns falls to the floor under the spinning frame so that the problem of cleaning the creel boards is eliminated altogether.

lVhat is claimed is:

1. A bobbin support for the creels of spinning frames and the like, comprising a ixed member carrying a bearing, a holder depending from said bearing and rotatable thereon and adapted to enter the one end of the bore of the roving bobbin, and means for redown until the boss 21 restsA taining the bobbin on the holder so that the v freely rotatable holder depending from the upper creel board, adapted to enter the upper end of the bore of the bobbin and so shortj thatits lower end is separated from the lower` ,Creel board by a distance as great as the length of the bobbin so as to facilitate the application and removal of the bobbin, and resilient means on the holder to engage the inner surface of the bobbin.

. 3. A bobbin support for the creels of spinning frames and the like, comprising a sleeve adapted to extend into thebore of a roving bobbin from one end thereof and less than one-half the length of the bobbin, a. fixed supporting member extending into said sleeve, and 'an anti-friction bearing between said member and sleeve.

4. A creel for supporting superimposed rows of bobbins, comprising two horizontal superimposed fixed supports separated by a vertical distance greater `than the length of a roving bobbin but less than twice the length of a bobbin, vertical' rotary holders mounted o n one of said supports extendin toward.

the other and adapted to enter an engage the bores of roving bobbins, said holders being so much shorter than the bobbins that their outer ends are separated from said other su port by a distance as great as the length o a roving bobbin.

5. The combination with the creel of a spinning frame and a roving bobbin to be supported thereon, of abobbin holder secured to the creel, pro'ecting less than half way through the bob in, and providing a com'- bined thrust and rotary bearing within the bore of thebobbin near one end thereof.

6. A bobbin support for spinning frames and the like, comprising a hollow rotary holder entering one end of the bore of a bobbin, a fixed stud projecting into said hollow holder from its outer end, two closely spaced ball bearings between the stud and the holder near its outer end, and a resilient member near the inner end of the holder adapted to grip the inner surface of the bobbin.

7'. A bobbin support, comprising a fixed stud, a sleeve surrounding the stud and adapted to enter the bore of a bobbin, a ball bearin between said stud and the inner surface o said sleeve, and a spring grip on said sleeve engaging the inner surface of the bobbin.

8. A bobbin support, comprising a hollow rotary holder having an internal annular boss, bearing balls engaging opposite sides of said boss, and a fixed stud extending into said holder and supporting said bearing balls.

9.v A bobbin support, comprisingl a sleeve having an annular depression, a fixed stud extending into said sleeve, oppositely facing ball races supported on said stud at opposite sides of the depression in the sleeve, and two sets of bearing balls each located between said depression and one of said races.

10. A bobbin support, comprising a sleeve having an internal annular boss and diametrically opposite holes below said boss, a. bolt extending into said sleeve and having a head at its inner end, oppositely facing ball races slidably mounted on said bolt, bearing balls between said races and said annular boss, and an expansion member extending between said diametrically opposite holes and projecting therethrough and serving to hold a bobbin on the sleeve and to prevent accidental renlioval of the bolt and ball races from the s eeve.

bly mounted sleeve containing diametrically opposite holes, and an expansion member comprising two rivets having heads projecting outwardly through said holes, and a compression spring surrounding the stems of said rivets and serving to hold the stems of the rivets in alignment and to force the heads of t-he rivets apart.

12. A bobbin support, comprising a rotatably mounted holder adapted to extend within the smaller bore of a bobbin which is provided with an internal shoulder near one i 11. A bobbin holder, comprising a rotataof its ends, a spring grip on said holder enf gaging the smaller part of the bore of the bobbin, and a stop on the outer surface of said holder engaging lthe internalv shoulder of the bobbin to limit the extent to which the bobbin may b'e slipped upon the holder.

13. The combination with a roving bobbin having a slightly enlarged bore near one end,

of a bobbin holder comprising a sleeve containing an annular groove, resilient expansion grips on said sleeve beyond said groove adapted to engage the smaller boreI of the bobbin, and a coiled spring extending around the groove and adapted resiliently to engage the larger bore of the bobbin and the shoulder` between the two bores thereof.

14. A bobbin support, comprising a sleeve having an annular depression, a fixed member extending within the sleeve, ball bearings between said fixed member andopposite sidesy of the boss provided by the inner surface of said groove, and a spiral spring extending aroundsaid groove and projecting beyond the outer surface of the bobbin.

15. A bobbin support comprisin a dcnding rotary holder mounted on a ear-ingv ocated above the `center of gravity of the bobbin and resiliently engaging the bobbin to permit a tipping of its axis with respect to.

the axis of the bearing.

16. A bobbin support for the creels of spinning ramesand the like, comprising a ball bearing, means for supporting said ball bearing with its axis vertical, and means for suspending a bobbin from said ball bearing so that it hangs vertically therefrom.

17. A bobbin support for the creels of miv lau

, spinning frames and the like, comprising a ball bearing, means for supporting said ball bearing with its axis vertical, means for-suspendin a bobbin from said ball bearing so that it angs vertically therefrom, and means for preventingv the hobbinv from wabblng 'about the axis of the bearing.l

Losa-15e 19. Abobbin support for. the creels of spinning frames and the like, comprising a ,ball bearing, means for-,supporting said ball f bearing with its axis vertical, a bobbin holder suspended from 'said-,ballbearing and adapt.-

ed to enter and gxjp'lnefend of the' borev of a bobbin. so that lthe:bobloinshangs vertically with its gripped end uppermost, and means for preventing saidv holder from wabbling about the axis of said ball bearin p In testimony whereof We have Y er'eunto set our hands.'

JOHNVMNN.

noms B. HASBRQUQK.l

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