US2929189A - Cotton picking spindle attachment - Google Patents

Description

March 22, 1960 J. OSHATZ ET AL 2,929,189

COTTON PICKING SPINDLE ATTACHMENT Filed March 6, 1958 jn'vemars; Jae/f 055612? M i Eg ATTORNEY United States Patent F 3 Claims. (Cl. 56-50) This invention relates to a cotton picking spindle and more particularly pertains to a spindle renewal attachment of the character set forth in the patent to Bruner et al. No. 2,795,918 issued December 1, 1953, which attachment is designed to be applied to the conventional cotton picking spindle embodied in cotton picking machines.

Such cotton picking spindles as now generally employed embody a shaft having an integral pinion on one end thereof and an elongated tapered hardened metal portion forming its other end having several flat faces extending longitudinally thereof provided with a series of spaced apart picking spurs which are so shaped as to snare and pluck the fibers of a cotton ball against which the spindle is rotated, and from which the fibers accumulated thereon are subsequently removed.

The spurs on the spindle are subject to wear and accordingly require sharpening and in time complete renewal of the spindle assembly is necessitated. In either event it is necessary to remove the spindle assembly from the machine withconsequent shutdown of the machine for a protracted period, since removal of the spindles involves demounting the shafts thereof from their bearings which is ordinarily done in a shop or repair plant. Furthermore sharpening of the spurs or removal of the worn spindle is quite costly both as to loss of production and costs of removal, repairs or renewal and replacement in the machine.

The primary object of the invention is to enable economical reconditioning of the cotton picking spindles in the field without removing the spindles from the machine and in a fashion whereby such reconditioning may be repeatedly elfected by successive removal and replacements.

Another object is to provide a renewal attachment for cotton picking spindles which is so formed that it may be readily mounted in telescopic engagement with a conventional spindle and securely engaged therewith without in any way altering the spindle or its assembly other than the removal and replacement of an oil sealing ring with which the spindle is equipped.

A particular object of the invention is to provide an improved means for mounting the attachment on a spindle in encompassing relation whereby the attachment will be securely held in place against displacement both longitudinally and circumferentially of the spindle, yet will be subject to ready removal and replacement.

A further object is to provide constructions in the attachment co-operative with inherent formations in the spindle to hold the attachment against movement relative to the spindle and in such manner as to facilitate quick application of the attachment to the spindle and its removal therefrom.

With the foregoing objects in view together with such other objects and advantages as may subsequently appear, the invention resides in the parts and in the combination, construction and arrangement of parts herein- 2,929,189 Patented Mar. 22, 19st;

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after described and claimed, and as illustrated accompanying drawings in which: 7

Fig. 1 is a view in side elevation of the attachment showing it as detached, parts being broken away and shown in section;

Fig. 2 is an enlarged end view as seen in the direction of the arrow 2 in Fig. 1;

Fig. 3 is an enlarged cross section taken on the line 3-3 of Fig. 1;

Fig. 4 is a view in side elevation showing the attachment as applied to a conventional cotton picking spindle, parts being broken away and shown in section;

Fig. 5 is an enlarged sectional view taken on the line 5-5 of Fig. 4 in the direction indicated by the arrows;

Fig. 6 is an enlarged view of the portion of the structure shown in Fig. 4 defined by the broken lined rectangle indicated by the numeral 6; and

Fig. 7 is an enlarged sectional view taken on the line 7-7 of Fig. 4.

Referring to the drawings more specifically A indicates generally a" conventional cotton picking spindle which embodies a shaft B for revolubly mounting in a cylindrical bearing C carried by a portion D of a cotton picking machine, which shaft has integrally formed on its inner end a pinion E which meshes with a driving gear (not shown) by means of which the spindle is driven in the usual manner.

The shaft B has an elongated tapered outer end portion F having a plurality of facets G extending along and throughout the length thereof from one side margin of each of which projects a row of spaced cotton snaring spurs -H. i I

The bearing 'C' has a circumferentially extending con tinuous flange J on its outer end which ordinarily is loosely engaged by an oil seal ring (not shown) carried on the shaft. B and frictionally engaged therewith, but which ring is removed for the purpose of the invention, it being removed to expose the flange J for utilization as a means of engagement for the attachment.

In carrying out the invention, a tapered tubular shell 8 is provided, which shell is closed at its small end and has an open cylindrical end portion 9 at its large end. The tapered shell 8 is designed to receive and completely sheath the tapered portion F of the spindle A and then overlie the spurs H in close proximity or abutting relation thereto, with the cylindrical end portion 9 encompassing the outer end portion of the shaft B in close fitting engagement therewith. For this purpose the tapered shell 8 has a smooth conical bore of circular cross section slightly larger in diameter along its length than the over-all diameter of the spindle A, except that the shell has a longitudinally extending narrow rib 10 on its inner periphery which rib is adapted to seat on one of the facets G and abut the tips of the adjacent spurs H as indicated in Fig. 7 to thereby secure the shell 8 against movement circumferentially of the spindle A.

The tapered end portion of the shell 8 has a series of flat faces 11 on its exterior extending along the length thereof along one margin of each of which projects a row of spaced cotton picking spurs 12 preferably similar in formation and arrangement to the spurs H on the spindle A but not necessarily so.

The cylindrical end portion 9 of the shell 8 has an outwardly extending continuous marginal flange 14 having its outer margin concentric with the periphery of the end portion 9 and having a diameter at least approximating that of the flange J on the bearing C and adja-- cent to which the flange 14 is designed to lie when the shell 8 is applied to the spindle A.

The flange 14 has a flat outer face 15 extending perin the free sliding contact therewith.

tion 9 which latter is slidably encompassed by an unyielding annulus 16 having an inner fiat face 17 arranged to bear on the outer face. 15 of th flange 1.4 in

, Projecting from the annulus '16 and integral therewith an annular elongated end sleeve 13 which is designed to encircle the flange J in close contact with the perim: eter of the latter aad with the margin of the sleeve 18 extending from the inner margin of the flange J. The sleeve 18 has a plurality of still but bendable tongues 19 .on its margin which tongues are bent inwardly into slidable engagement with the inner side of the flange I, as particularly shown in Fig. 5, on the shell 8 being snugly seated on the spindle A with the face 17 of the annulus 16 abutting the face 15 of the flange 14, thereby fastening the attachment against longitudinal move-j ment relative to the spindle. A are then freely revoluble relative to the annulus 1,6.

I In the application and operation of the invention when it is desired to recondition a mounted worn spindle A,

an oil seal ring with whichit is usually equipped is removed as before stated, whereupon the shell 8 is i616".- scoped on the outer portion of'the spindle A in snug engagement therewith and with the flange 10 seated on afacet G in abutting relation to the tips of the adjacent spurs H or nearly so. The annulus 1618 then engaged as esses areas; ts he. ou er c o heqyli d n P in installation and operational costs over the usual prae? tice of replacing the conventional spindles.

While a specific embodiment of the invention has been shown, we do not limit ourselves to the exact details of construction set forth, and the invention embraces such changes, modifications and equivalents of the parts and their formation and arrangement as come within the p view o the app ded aims.

We claim:

1. In a reconditioning attachment for cotton picking spindles, a tapered shell having an open end and-provided with longitudinal rows of cotton snaring spurs;

' a longitudinal rib interiorly of said shell having one The shell 8 and spindle with the flange ld and secured to the flange I by means Y of the tongues 19 as before described, thus completing application of the attachment and effectively reconditiom ing the spindle A.

V In event the spurs 12 onthe shell 8 become excessively worinthe shell maybe readily removed and re:

placed by a new or reconditioned shellin an obvious a fashion. This operation as well as initial reconditioning of'th'e spindle may be accomplished in the-field .With,

little or no delay and so as toefiect a. material saving of its longitudinal margins extending in radial relation to said shell, a peripheral flange on the open end of said shell, an annulus loosely encompassing said shell adjacent said flange, and a sleeve on said annulus loosely surroun in sai fla a pr j c g f om theor n at ai s rc I t 2- T e s r t sal d .f rv n aim ,1 o her wi h bendable tongues on the outer end of said sleeve.

3- ;An. u il ar ac m n or t on Pi i pind es comprisi ga shell having a tapered end portion and an opposed annular end portion and having cotton picking teeth on its tapered endportion, a flange fixed on the outer end of said annular end portion having inner and outer ends and an annular periphery, an annulus on said annular end portion slidably abutting the inner end of said flange and relative to which said annular end pen. tion is turnable, a sleeve fixed on said annulus looselyo r y ns he p r p ry o a d e; a be da le tor gues, on said sleeve adapted to be bent inwardly in; overlying relation to the outer end of said fla ge.

References Cited in the file of this patent UNI ED T E A ENT Br net tal-

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