US987546A - Spindle. - Google Patents

Description

H. L. BROWN.

SPINDLE.

APPLICATION FILED D30. 24, 1909.

987,546. 7 fitented Mani :1, 1911;

)Vitweooeo a "me n f 50 spindles the gear a so that during fif h e spindle by forming one or more ports 'in the walls of the rotatable shell at or near the reglon of the driving gear, through which port the lubricant is drawn by cen- 6 trifugal force and delivered into the gear teeth. v

. The subjectmatter of this application has been divided from my application, Serial N0.;4L36,472, filed June 3, 1908.

The various features of my invention will be illustrated and'described fully in the accompanying drawings and specification and pointed out in the claims. In .the drawings, Figure 1 is a vertical,

sectional view of a spindle in the construction of which my improvements have been embodied. Fig. 2.shows in elevation the spindle of Fig. 1. Fig. 3 is a view in plan,

looking from bottom totop, Fig. 1; and

2 0 Fig. 4 is a view in elevation of a modified .form of spindle, shown partly in section,

with ,several of the members ready for assemblage.

In the embodiment of my invention selected for'illustration and description as a convenient form to enable ready and complete miderstandlng of my improvements, the part designated by the reference char- I -acte'r a Is theshell of the spindle and cons'titutes the rotatable member in the instance illustrated, carrying a blade at, to receive a suitable bobbin or similar device, such as that illustrated at I in Fig. 1, the shell being mounted rotatively upon a supporting membera which is'situated axially within the socket or hollow interior bearing portion of the shell-spindle member. The shell has preferably an exterior pinion, gear or simi- "lar device 1 of a character suitable to per- 40 mit the spindle to be driven positively, for

which purpose I have shown a gear 0 (partly broken away), and while I do not limit myself to any specific form of driving mechanism, I prefer to use gearing of the herring bone or analogous types for the spindle inion and its actuating member, as such'a orm of gear will aid to serve that object of my invention which provides for means to counteract the tendency of shell to leave their supports co-axially. In accordance with an extremely important feature of my invention, I have provided, and illustrated at a,, a universal bearing intermediate the shell a and its supporting member a,, preferably at the driving region relation to the normal, moving about the struction as an element of prime importance not infrequently,

universal play may,

in the ability of a spindle toavoid deleterious vibrations, a factorespecially important at high speeds. 'Io'promote stability of the spindle inits self-centered position, I prefer to locate the drive bearing a, at a region of low flexibility of the supporting member near the threaded attaching end, and I prefer to provide also a secondary or auxiliary bearing member (4 at a region of greater flexibility, so that if the spindle blade (1, be struck a sharp blow, as happens the tip of the supporting member a. is free to yield, while its'threaded lower end, being held fast in a suitable base (not shown) holds the universal bearing member a firmly, and the shell! (4 may nod or duck with the tip of the memher a, under the impact of the blow, moving around the universal bearing without straining or parting the bearing surfaces,

and after the force of the blow'has been spent, can again straighten up under the.

action of the member The shell and its blade may then, and preferably will, be of relativel ri 'id construction formin an integral metal member, symmetrical, and as true as .it is possible to make it mechanically, while the supporting post a, will also prefer ably be made of metal, its lesser diameter ordinarily serving to endow it with suflicient ability to give or yield slightly near its tip without any special preliminary treatment to impart resiliency, although where found desirable, tempering, or other suitable treatment to induce flexibility ofthe requisite degree, is to be considered within the scope of my invention. 4

It should be noted that the bearing parts of both bearings are in perfect contact at all times, and that I obviate the use of adventitious means to promote flexibility, such as felted or fibrous packings, which must be renewed from time to'time, and the novel principle of construction above recited I conceive to be of general utility in its application to spindles and accordingly I claim it hereinafter generically.

Vhen embodied in a spindle device wherein the rotating member takes. the form of a shell, as illustrated herein, the bearing part a, which affords the capability of slight and preferably will, comprise a separately formed member of generally spherical shape, provided with an axial borea to pass the supporting post and furnish a snug bearing fit thereon, the "area of the cylindrical bearing surface'constituted by this bore preferably being approximately equal to the area of the exterior spherical bearing surfaces a and sphere or I a so that the bearing surfaces will to ether furnish a compound bearing, the member a, will be free to rotate between the post and shell, and the friction Will be distributed. The bearing surface upon the rotating shell from parallelism with the main axis of member of the spindle may be of any. form suitable to'eooperate with the bearing surface with which it is toengage, and as one convenient form of surface to engage the spherical surface a,, I have illustrated ata a concave annular shoulder which in the instance illustrated is formed integral with the material of the spindle shell and faces the open mouth of the shell, while to cooperate withthe lower spherical surface of the member a I preferto provide a bearing member a of annular form and-havinga concave bearing surface a facing oppositely to the surface a the two surfaces embracing the sphere between them, and affording the maximum distribution of friction.' The member a, will preferably be made removable and arranged to be secured in adjusted position, serving as means to retain the shell upon its support, a function of great importance at high speeds, inasmuch as heretofore it has been found impossibleto operateshell spindles at a speed of three thousand turns to a minute and over, owing totheco-axialaberration of the shell. This retaining bearing bush will preferably have itsaxial bore a slightly larger in diameter than the portion of the. supporting post.

passing therethrough, in order to clear the post during nutative displacement of the the post,.and'also'v to afford ample exit'of the fluid lubricant with such detritus as may result from the attrition of the hearings, or otherwise find its way into the circulating lubricant, this continuous self-cleaning ac-' tion' of the spindle constituting one of the most important and novel features of my invention, as will be understood more fully upon reference to thefmore detailed explanation of the oiling system set forth else where herein. Viewing the member a, in,

another aspect, it may be regarded as the mainwearing part of the device, in view of the above recited tendency of shell spindles, to rise ontheir supports at the high speeds common in spinning cotton, silk and other fibers, and I prefer to harden the material of thevmember to withstand this wear, and

to provide for'its ready replacement when worn; its occasional adjustmentwith accuracy. and. nicety; and its positive fixation in adjusted position; these requirements being subserved by a threaded connection of relatively fine'pitch as at a between the periphery of the bush andthethroat'of the shell, and by screws a tapped into the base of the bush and so positioned that their heads may enter. recesses a (See'Fig. 3) arranged at such intervals as may be found desirable around the mouth of the shell, the distance between recesses representing a predetermined co-axial displacement of the bush along. the post, corresponding to the degreeof wear, which may necessitate readjustment, according to experience. As a corollary of the establishment of this bush a, as the main bearing part, I may, and prefer to, arrange the auxiliary ring a, in such'a manner as to coirdinate its 0 eration and adjustment with that of the. bus g a and for this purpose I have shown means a to maintain the auxiliary bushing beaning' member a, automatically in snug gagement vwlth its cooperating bearing .63

within the shell member a, andto serve at the same time as means to exerta co-axial draft upon the shell tending to maintain the bush-bearing surface an, in normal operative engagement with the mouthw'ard'surface of the bearing part a Any suitable means 0 may be provided to maintain'the parts in this relation, and as one convenient form of such means I haveshown a coil spring surrounding the post a, which may be ,reducedsomewhat in diameter to seat the spring, one end of the springbearing against the shoulder a while its other end exerts a constant thrustagainst a loose washer o below the anterior portion of the auxiliary bushing a The shell-bearing surface a will'j'preferably be slightly coned, to correspondwith which the exterior of the bushing a maybe similarly coned,-and' as it is desirable to secure .at this bearing the ad: vantageous distribution offriction alforded by compounding, 'the free rotation of the bushing a may be facilitated by equalizing the area of its outer. and inner surfaces, and for this. purpose an extension a is shown which causes the inner bearing-surface to present by its additional length, an area equal toth e greater outside diameter ofthe member a I prefer to provide for a hardened and easily renewable bearing surface upon the tip of the post a, to engage with the inner surface of the bushing a and this may take any suitable form, as for example the metal sleeve a, shown in Fig; 1, to retain which in place the post may. be swaged outward slightly as indicatedflat (L At 0 in Fig. 1 I have shown an integral shoulder which may be-provided to limit the upward shift of the bearing part a under the action of the spring a and to resist the,

co-axial aberrancy of the shell at high speeds. In the modification illustrated in Fig. 4, a similar stop is provided in the form ofa sleeve which may be secured upon the supporting post a, in suitable fashion, as by shrinking, forexample, and has preferably a coned surface Q26 and stop shoulder a the sleeve being hardened preferably and servingas a bearing for the similarly coned surface at of the sphere a which in other respects is preferably similarto the sphere a shown in Fig. 1 and cooperates inlike fashion with the shell bearing portion a and the bearing bush (2 these parts being shown as slightly separated, ready for I prising a shell member presenting an inassemblage. The bush a may be secured in adjusted position by -a screw a similar to the screws a already described, and shown in Figs. 1 and3. One or more washers a, may be provided as shown in Fig. 4, adja-. cent the shoulder a, to limit the upward shift of the sphere a and as the coned axial bore of the latter wears larger, the sphere may be, reseated after removal of one or more of the washers (1 v The support post a, of my improved spindle, may have a threaded shank; as illustrated in Fig. 1, andmay be mounted on any suitable rail, by'which term I designate broadly the portionof a'spinning frame or other apparatus utilized as the mainsupport for that part of each spindle, which carries the rotating or spinning member thereof,

2 without limitation to any technical use of the term rail ,Toattain the best results at high speeds,

' andindeed at any speed, means should be provided for the regular, and preferably continuous, circulation of lubricant over the bearing-surfaces between a spindle and its support and driving gears, and-for that purpose anysuitable device may be adopted,

in accordance with my invention. The preferred system of oiling which I-have devised, and' illustrated herein, permits circulation of oil, or other suitable lubricant, through channels f in the respective spindle posts, to theauxiliary bearings a thence down between the shell and post to the drive bearing a, and from there partly through ports or vents f inthe shell-part a to drench or lubricate the gear a preferably, and partly through the bush bore a Having illustrated and'described my, in

vention thus fully, and suitable means for carryingthe same'into eflect, it will be understood that I do not limit myself to the specific materials, construction or uses shown v and described, nor in general otherwise than as set forth in the claims read in connection with this specification.

What I claim and desire to secure by LettersPatent is v 1. A spindle of the class described; comprising a rotatable shell member presenting an interior bearing toward its mouth, a re-- movable bearing member arranged to enter said mouth, and means to secure said remow. able member 1n ad Usted position; said re-.

movable member presenting a bearing surface opposite to said interior bearing surface to embrace a shell-supporting bearing member therebetween, said shell and remov able member having respectively axial bores of sufficient size to permit a limited universal movement ofsaid shell about said supporting .member; substantially as described.

2. A spindle of the class described; comterlor bearing toward-its mouth, are 9vable bearing member arranged toenter aid mouth, and a screw 1nthe base of one of able bearing memberarranged to enter said mouth; a freely rotatable annular" member embraced between said fniterior bearing and removable member ;a n'd Imeans to secure said removable member adjust- 8 ed position, saidremovable membenpresenting a bearing surface opposite'fto said interiorbe'aring surface. v

4. A shell spindle of theclass described; its support; and a. plurality of com ound bearings intermediate said spindle an sup.- port; one of "said bearings beinga universal bearing; substantially as described.

5. A shell-spindle of the class described; a supporting post't here-for; anda spherical bearing member intermediate said post and shell, said spherical member being transfixed by said post and rotatable independently of both post and shell; substantially as described, 6. Alsupport for shell spindles of the class described; comprising a-post havinga coned bearing" surface and a shoulder, and provided with a luralit-y of removable washers ;'and a sp erical bearing member ;hav-

ing a coned central bearing bore to' fit" on said post cone, up against one of said wash: ers; substantially as described.

7. spindledevice of the class described;

a medial, spherical universal bearing and having near one end a rotatable'bushing and a spring'to press the same normally toward the end of said post; a spindle-shell mounted to rotate about saidpost and having similarlyl faced bearing surfaces to engage rotatively with said bushing and. spherical members respectively; a removablemember j to engage the side of said spherical member opposite said shell bearing; and means to 1 secure-said removable member to said shell, embracing said spherical member, andholding said spring under compression; substantfiallyin the manner and for the purpose set ort 8. A spindle of the class described; comprising a rotatable shell having a plurality of similarly faced bearing surfaces separated by a substantial distance; a supporting post to enter said .shell and having a plurality of bearing surfaces to engage said shell bearings, one of said post bearings being mounted-yieldingly; and means to exert-a constant pressure on said shell tending normally to move said shell co-axially along comprising a supporting post provided-with the teeth of said gear from the interior of said spindle; substantially as described.

10. A rotating member for a spindle of the class described having a peripheral or exteriorly' arranged driven portion to be "engaged with driving means; and means to permit'fiov'v of'lubricantfrom the, interior of said rotating mer'nber through the Walls of. said driven portion to the region of driving en agement; substantially as described.

11. shell-spindle; and asupporting post 'having an upper bushing bearing and a universal, spherical bearing for said shell, both Within the latter, said post having a conduit to convey lubricant in copious quan-t tities to the interior of said shell at a region above said bushing, and means to seat said bushing yieldingly to permit'the passage of said lubricant freely to flush and t0 lubricate said spherical bearing; substantially as described.

Signed at New York in the county and State of NeW-York, this 16th day of December, 1909.

HENRY L. BROWN.

Witnesses ALEXANDER C. PROUDFIT, J OHN B. WENTWORTH.

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