US1061267A - Spinning-spindle. - Google Patents

Description

G. H. CHAPMAN.

SPINNING SPINDLE.

APPLICATION FILED APR. 16, 1908.

1,661,267. Patented May13,191

" 25 videdwie.

. 1 bolster.

50 to fit the top of the bobbin,

' 'Y-CHARILEsH. CHAPMAN,y or wmoni-ls'rnn,

'TIQN or MAINE.

A(rIRLA-VIIY SPINDLE COMPANY, OF WINCHESTER, MASSACHUSETTS, A CORPORA;

i To lllwlwm-z't mag/concern:

' acertfain new and useful Improvement inf Spinning-spindles, of which the following' -i S -.ful l-, clear, and exact description.-

" This inventionis in thenature of "fan-iur' 105:'

p rovement upon the invention for which'I received .Letters'latent No. 875,503, 'dated .'.2.December 31,1907.- f

` .'Asin the inventionfo the spindle is'supported .bearings Lsecured 'in""'th'e the patent, so here. and` turns in ball-' upper "and lower :-v` ve'nds. of a bolster,"and thisbolsteris held suspended by its upper cylindrical portion .-in a bo1ster-case,"a'nd.1 ts lower portion 1s vof smallerdiameterthan 'its upper portion and admits of a limited'latera'l movement within 'bolste'r'o the patent, the bolster of the preis-v entinventonisnonfiexiblm Abut itv is prolaterally projecting springs whichcontrolthe lirnited lateral moven'ient .1 referred to. n

Theseand 'other' features, hel-e111 par,

`fiticularly pointed out andV claimed, consti- Atute the present invention.`

4Infthe accnipanying .dra'\\'ings, -illustrating the invention, inthe several figures of wluch like parts' are similarly designated. Figui-e1 a longitudinal section with the spindle and' bobbln broken out. Fig. 2 an elevation of the bolster detached. Fig. is an .ele\'ation of tl le upper portion ofthe Fig. 4 is a bottom plan view ofthe bolster,` Figa 5 is an elevation of the-lower portion of the bolster. Fig. (i is an elevation .of a' bolster-supporting tube. Fig. 7 is a longitudinal section of the bolster support-l in tube. he bolster-easel, has the oil-well 2, and

- the screwthread 3, nut 4, base oil-reservoir 6,'andupright 7, substantially as in the patbut any or all-of these parts ent referred to,

'may be of other approved construction.

' The spindle 8 has a cylindrical portion 9 r"and the blade of the spindle tapers very slightly to a point indicated by the transverse linebelow the com 10, md from thisfpemt the. spindle SPINNING-sprunrin.

. Speccatiniof Letters Patent.` Y. Application 1aed Apu-1 1s,

=a ter s et forth.

MA-s'sAoHUsnfrTs, AssIGNoR To CHAPMAN Patented May l1.3, 1913.

isos. seriaiN'Azzsrs. 4

tapers quite rapidly and terminates inv an inverted cone 11. The upright is counterbored and shouldered'at 12, to recei\'e 'the supporting tube 13, which is firmly held in and extends above they upright 7.A The invs-ide diarneter Aof the supporting tube' 13 is thefsameas .that of the oilwell 2 in the bolsterlea'se' l'." The supporting tube '.13 is longitudinallyslotted aty 14, the said slot Ll endingiwith-an inwardly vand .upwardly 'for purposes hereinta ering shoulder 15 'The s upportingtube 13 is 65 also provided with 'a hole. 16 which admits the .oil'ffroni the oil-'r eser\'oi r;6V into the oili well2. -IThe"oil-reservoir 6 is supplied with oil f ln'Qllgl' a feed tbe l'which. is covered witlra capf'1'8." The bolster' 1 9 is constructed 70 with-an enlarged upper en d, having a flared o r -outwardly-tapered. portion .20, above `which` a cylindrical portion 21, to receive 4and hold, the hardened-steel v'ball-cup 22 which is forcedinto-and downagainst the tapered portion 20 of the bolster, and there.

by'` the ball-cup 22 'is alined. concentrically with the bolster.. Theupper'edge offthe cylindricaliportion 21 .of the bolster -19 isset in around'theupperland tapered portion of the ball-cup 22 and thereby frmly lsecures the ball-cup `22in the enlarged upper end ofthe bo ster. L19. Bearing-balls 23 .are placed in the ball-cup 22 and aroundthe -cone' 10,1111 of whichare of hardened-steel `and 85 form in the enlarged upper end olf the .bolster what is known as the bolsterbearing. Below the enlarged upper end of the bolster is a cylindrical portion 24,'aud next below it is a downwardly tapered portioi125, Tand-.9o below the tapered portion 25' iS a cylindrical portieri 2G.which extends from-below the tapered 'portion 25 to the bottomj of the bolster. l

27 is a spring having an outwardly turned lip 28.' .This spring may be made bysawin two ne parallel kerfsthrough the tapered' portion 25 of the bolster anda partiof' the cylindrical-portion 24, as shown in Figs. 1, 2 and 3; The objectof thespring 27 and `1 i`pi100 .-28 =is to engage the longitudinal slot 14' in the supportin tube :13 and thereby AFevent:

the bolsterY 19 rom rotating .with the spindle. vWhen -the bolster is'being drawn out ofthe ,bolster-case, after the stop-pin isjturned- 105 from over the horizontal vflange Aof the whirl'.

.a inst the interior of the oils-well 2, as

s own in Fig. 1, and yie'ldinglI hold the lower end of the bolster, sothat t rough the action ofy these springs the bolster may conform to the' motion o the spindle when said spindle carries an unbalanced load. The inwardly curved upper ends ofthesprmgs 29, and the longitudinal slot 14 in the supporting tube 13, admitof the vertical, more ment of the bolster with the spindle.

T he lower end. of' the bolster v19 is in-' ternally screvcfthreadedv to receive' the` spindlestep '31 which is externally screw threaded to't said internal; scrswthrad.' The step 31 has a hole 32 through its center ,and is providedwith ,a ball-race""in its up# per end torecei-v' the balls 33. The conical end 11 of the spindle isstepped in the hole 32 and bears and rotates upon-the balls 33.. The step 31, as shown in Fig. 4, has a number'of notches or nicks '34 cut across its bottom, and aisprng 35 cut in the lower. end

lof the bolster in a manner similar to the cutting out of spring 27, eee Fig. 5, has an linr turned lip 36 which enters one of the notches in the step 31, when. in line with the spring 35, and loc'ks the step from turning in either direction, and so l'xe's the adjustment of the ste in the bolster. The .cone 11, balls 33, an step 31 are of hardened-steel.

The whirl-base 37 is secured to the spindle in any suitable way, and 4is ada ted to r'ece'ive the bobbin- 38. The whrlase is`recessed internally from its bottom, as at 39,

and ends in a laterally projecting flange 40,

,i which coperates with the sto -pin 41 mounted upon the bolster-base. T e sleevewhirl'has its sleeve 42A forced into the -cavity 39 inthe whirl-base, and is thussecurely' connected with the whirl-base and by. it with the spindle. -I 43 1s the whirland44 the driving-band.' It will be observed that the counterbore'of the-whirl-base is sufciently large to receive lthe upper and enlarged ortion of thebolster containing the up er all-bearing, and b this construction o the whirl-base and whir it is possible to use a whirl of the standard diameter, thereby requirin no chan in the diameter or speed of t e drivingrum ,l of the-spinning Aframes now in use.

In practical use it' has been found desirable to allow the spindle a slight upward movement to enable the horizontal flange 40 to strike a slight blow against the stoppin .'41 in order to loosen the from the spindle and thereby obviate the necessity possibility of the' s indle'being spr outof true, .and it alsop facilitates the :virdk of oflin'g and vof piecing' upv broken'ends of yarn.

-lows: .spind1e' into lace, thelibearii balls 23 'are arrange'd'in t e ball-c tion 21 of4 the bolster is d to the spindle shown in, 1. Th ":whirl-base is next placed upon e s indle the balls 33 are next placed. inthe b A raceof the step 31, and the loclr'i'x'igslfiring 35 is forced out and may be'held'kmito contact with the step ,play ing an 'ordinary-pin between it and bolster; the ste A31'containing theball ."38 is thenl screw up into the lowerend'nthc bolsternntl the balls33..co1'ne aainst"'the end ll'of the s i'ndlez T portion 21 is set aboug'ithei all-cup, all as locking spring 35 is allbwed tof rop -intomel o f pulling it oil by `force.^. This avoids the The arts lare preferably lassembled as fol-,7. he cone l1() is ferced down .upon th@ est/ep 31- is then adjusted until t espindle fits' freely in its'bearing without lateral lay, and thev 4 ofthe notches 34 in the lower :end of the .the step and hence vpreventlie step moving in either direction The whirl .is next aced up, and around the bolster1 and, force into the recess' in the bottomvof the whirl-base. The spindle,.oone, bolster-bear-l ing, whirl-base, step-bearing and whirl-hair#-y ing been'adjusted, the bolster is then placed l in the bolster-case, the spring 27 is forced "in toward the spindle unti'l it enters the supporting tube 13, and the .bolster is forced down into thebolster-case until ,the tapered step 31, 'thereby to lock the .'adjuatmentcf portion 20 rests upon the 'uf per end-'of the snaps into the longitudinal slot- 14 in the" tube ,13 and there from rota with thespindle. The sup. porting tube 3 may be, dispensed with, 'andA tube 13, and the lip 28 o the' spring'27 y .preventsthe bolster;

the 'upright 7' extended' to a.' height and trne diameter'to correspbndfwith the outside'llialiieter of fthe stra' ht vof Ithe ,bolster,' and -a longitu in `.slot may be made in the' interior. oftharight? to 'take' the place ofthe'slotf14 e tube 13; 'hut 'as a matter of eo'nom itis deemed advsable to construct th'ebo ter-case with the upright tube 13.

As hereinbefore stated, the bolster may be ortion 24 readily extracted from 'the bolster-case, be- P' cause the tapered endf15" of the slot 14 will cam the lip 2 8 of the spring 27 out ofthe slot 14 when the bolster is ulled upwardly. The bolster having, been' p aced in position in the bolster-case, the stop-pin 41 is turned around over the `laterally projecting, ange 40 of the whirl-base, which prevents t e bolster and'spindle from being pulled/out iso ofthe bolster-'case Tiles indie, eine, bei.'

- ster, bolster-bearing, step-bearing, whirlbase and `whirl all move laterally and vertically together.' The cylindrical portion 24 of thebolster'19'is made to tit with sufficient loos'eness in the upper end of the tube 13 to enable 'the lower end of thespindle .and bolster to -take on the movementfre quired to allow thev spindle and bobbin to Arun steadily. The plane Aof. the band-pull.

upon the whirl is at ornear the center of the cylindrical portion 240i. the bolsterV and tends, on account of its lateral pressure, to

hold the spindle vin a vertical position, and

the variation ofl the tension of the band willl have no tendency-to deflect the spindle o ut of a perpendicular position.

As alreadg stated, belowthecylindrical. '.portion 24 Vthe bolster tapers to a smaller.

diameter, which hangs suspended in the oil' well 2, vand out of contact with the inner walls of the bolster-case. This suspended portion of the bolster has a yielding lateral.

support against 'the walls of' the oil-well through `the intermediate springs 29, and this a mits of a suiicient lateral movement of the lower portion of the bolster and spindle toenable the spindle to carry an unbalanced load, that would be impossible with a spindle not having this yielding capacity.

The lateral yielding capacity not only serves;

the purpose to carry an unbalanced load,

but it greatly increases the life of the bear.

ings, from the fact that the vibratory shocks of the spindle `are greatly'reduced thereby.

In practical operation, spindles of this class revolve ata speed varying from eight to ten thousand revolutions a minute. lVhen an unbalanced load is placed .upon a spindle, or when th spindle is slightly out v of balance, the spindle will, as it attains its speed, fake on a gyratory movement Yaround a center of gravity throughthe spindle and its unbalanced load and the laterally yielding portion of the bolster conforms to this -gyratory'movement of the spindle and the spindle and'bobbins will run quite steadily.

In carrying an unbalanced load it is'important to keep a perfect adjustment of the lower end of the spindle in the step-bearing,`

'and this is 'effected .in the present invention,

since thd tension caused `by the band-pull acts to force the'step-bearing into proper ad.

on to the balls in the upper bearing, therebyi .keeping them continuallylubricated. Thi

journal, type.

on the spindle by centrifugal'force,owing A to. the, increasing diameter of the spindles and is spunout andthrown off at the upper end of the lowr taper of the cone 10, --and`f movementofthe oil. is facilitated by the up iard and outward-.taper ofthe. cone -10 The spindle, cone, whirl-base .and whirl are suppprtedand revolve inthe bolster-bearing '75.

and step-bearing and have no other suppor or contact. The invention is not limitedto the details;

of construction shown and described, sincej.

any wellllmown equivalent may be used which comes within the spirit ofthe inven' tion.. Moreover, the invention is applicable. to bolster-bearings and step-bearings of-.th

.-1. fk bolster-case, adapted to receive-and .5.: 'sustaln a bolster and spindle, said'bolstercase havinga supporting tube slotted Ion itudinally andadapted to be en aged by t e bolster toprevent rotation o with the spindle, a bolster having an enlarged upper end, a spring below said end to engage the longitudinal slot in the supporting tube, and a series of laterally. projectmg springs to-engage the interior walls of the bolster-case, all of said springs being cut integrally from the metal of the bolster 'and adapted to move both laterally and vertically with the spindle and bolster.

2. Aspindle, a' bolster-case, and .a bolster 100 having bearings in it for receiving and supportingtsh'e spindle, said bolster 1ooselycon nected with vand-supported at its upper por-4 tion by'jthebolster-case and havin its lower portionfofles's diameter than the interior of .105

the bolster-case and provided with laterally projecting springs cut integrally from the .material of the bolster and in 'contact with the inner surface of the walls of the bolster-v CaSe.

3. A spindle, a bolster-case2 and a bolster having bearings in it for receiving and'sup porting the spindle, said bolster looselyconnected with and supported at its upper portion by the bolster-case .and having its lower portion. of less diameterthan the interior of the bolster-case and provided with integral laterallyprojecting springs bulging out upwardly therefrom and in contact with the inner surface of the wallsof the 12o bolster-case.

4. A spindle, a bolster-case, and a bolster having bearings in it for receiving and supporting the spindle, said bolster loosely conr nected with and supported vat its upper por- 125 tion by the bolster-ease and having its lower portion of less diameter than the interior of the bolster-case and provided with intelgrallaterally projecting springs -bulging out upwardly thercfromand having their.

the bolster 90 l ally projecting springs in conue; withg'thobolster-case.

a 6. Aspindle, a bolster-caee, .andv a bolster having bearings in it for receiving and Supportingthe spindle, sadbolster having a,

cylindrical upper port-ion by which it is s u's-A tained in the' bolster-case, a nexo adjacent downwardly tapering portion having an integral laterally projecting springior detachablyfholding the bolster 1n .the vblstercase, and a termm'al cylindrical porlon next below the tapering -portionand having intefk I gral laterally -projecting'springs in contact ,f7. Aspindle, a bolstercase2 and a holster fhavmg bearings in it foryreceiving and'sup-' with the bolster-lease. l

porting the spindle', sa id `bolster having a `cylindrical upper Aportion by which it. is-sl1stained-in the bolster-case, a". next adjacent 'case Aand locl it againsl'fl'otation,4 andga.

terminal'. cylindrical ortion next below the tapering portion unf 'having'inegral laterally 'proictingpnn'gs in.. @nw-with the bolster-case. .A

In testimony whereof Ihave .hereuntoset B.. Nevin.

-teg'raz''laterally -projectngfspring-for de-f- 1 Vinchably holding the'. bols'terj in the bolster-

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