US2647806A - Mounting for textile spindles - Google Patents

Description

4, 1953 H. A. SIMMONS 2,647,806

MOUNTING FOR TEXTILE SPINDLES Filed Oct. 19. 1949 INVENTOR 1 /0 WA R0 /7. J/MMa/vs BY W $1.1- v 1 ATTORNEY Patented Aug. 4, 1953 MOUNTING FOR TEXTILE SPINDLES Howard A. Simmons, Milford, Mass, assignor of one-half to James Read Kimball, Hopedale,

Mass.

Application October 19, 1949, Serial No. 122,280

2 Claims.

This invention relates to mountings for textile spindles, and more particularly to mountings of the type including a bolster case with a bolster removably carried therein, the bolster being arranged to receive and to support a revoluble upright spindle.

Prior mountings of this type have for the most part employed plain or sliding bearings for the spindles. There is a great demand for higher operating speeds for spindles, but with these prior plain bearings it is not feasible to operate at higher speeds, since the oil is thrown out of the bearings, the bearings overheat, and they become badly worn after a short period of use. This permits the spindle to vibrate, and the bolster has to be replaced. While various attempts have been made to construct bolsters with bearings of the antifriction (roller or ball) type, none of the prior arrangements have been entirely successful. It has been found very diflicult to supply the antifriction bearings with the proper amount of oil and at the same time prevent oil from escaping. Furthermore, prior bolsters of the antifriction type could not be used with cases intended for plain bearing bolsters.

It is accordingly one object of the invention to provide an improved spindle mounting of the anti-friction type which will permit operation of the spindle at very high speeds without appreciable wearing of the various parts or escape of the lubricating oil.

It is a further object of the invention to provide an improved antifriction spindle bolster so constructed that existing cases, originally made for plain bearing bolsters, can be readily altered to receive the antifriction bolsters.

It is a further object of the invention to provide an antifriction bolster and a case therefor, these parts being of a simple and inexpensive construction and so arranged that the bolster is firmly and accurately supported in the case and yet can easily be removed therefrom whenever desired.

With these and other objects in View, as will be apparent to those skilled in the art, the invention resides in the combination of parts set forth in the specification and covered by the claims appended hereto.

Referring to the drawing illustrating one embodiment of the invention, and in which like reference numerals indicate like parts,

Fig. 1 is a vertical section through a spindle mounting, the section being taken on the line Il of Fig. 2;

Fig. 2 is a section taken on the line 2-2 of Fig. 1;

Fig. 3 is a section taken on the line 3-3 of Fig. 1;

Fig. 4 is a section taken on the line 44 of Fig. 1; and

Fig. 5 is an elevation of a bolster, partially broken away.

The embodiment illustrated comprises a horizontal beam or so-called rail ID forming a part of a textile machine and having a series of spaced holes H extending vertically therethrough, one hole only being shown. Within the hole I 1 there is mounted a bolster case in the form of an upright tube 12- having a central bore l4 therein, the bore being open at its upper end and closed at its lower end. The upper end of the tube l2 is enlarged to provide a horizontal flange l5 which engages the upper surface of the rail II). From one side of the flange l5 there extends a horizontal portion [6 having an upwardly projecting boss 13 on its outer end. This boss has an upwardly open cavity l9 therein for the reception of oil, this cavity being connected to the upper portion of the bore M by means of a horizontal passage 26. A cover plate 22 is pivotally attached by means of an upright screw 23 to the top of the boss [8 in position normally to overlie the cavity I9. Screw threads 25 are provided on the outside of the tube l2 to receive a nut 26 which may be tightened to force a washer 21 upwardly against the lower surface of the rail 56. Thus the case l2 is securely fastened to the rail. As so far described, these various parts are old and of a well-known construction.

The bolster case I! is arranged to receive and to support a bolster comprising a vertically elongated upright member 29. This member includes a lower portion 30 having a substantially cylindrical outer surface of a diameter such as to fit loosely within the bore Hi. This portion 38 extends somewhat above the midpoint in the length of the bolster, and above the portion 353 the member 29 is slightly enlarged in diameter and formed with external screw threads 3|. The upper portion of the member 29 is in the form of an upright cylinder 33 somewhat larger in outside diameter than the screw threads 3| and terminating at its lower edge in a downwardly facing shoulder 34 located closely above the screw threads. A bore 35 extends longitudinally through the member 29, and a cylindrical counterbore 36 is provided in the upper portion 33 of the said member. Two diametrically opposed holes 33 extend through the wall of the lower portion 33 of the member 29, somewhat above the lower end thereof, two similar diametrically opposed holes 39 are provided somewhat below the screw threads 3%, and two similar diametrically opposed holes at are provided in the threaded portion.

A step bearing in the form of an upright cylindrical block t? fits loosely within the lower portion of the bore 35 and projects slightly below the lower end of the er A bearing socket i -5 is provided in the upper end or" block 52, and opening extends transversely through the block. A small horizontal pin it extends through the opening the ends or" this pin being supported suitable openings in the adjacent portion of the member As best shown in 4, the ends of the in are headed into countersunk portions of the ope The pin 56 is smaller in diameter than the ope; ing it in the block 2 so that the latter loosely held in place within the bore 35.

An antifrictional radial bearing is located within the counterbore in the upper portion 33 of the bolster member 28. This bearing col. prises a lower washer an annular outer race 5t above the washer it, a ring iii above the race 50, and a relatively thin upper washer 53 above the ring 5%. A plurality of circumferentially spaced vertical rollers E i are located between the lower washer and the 5i, these rollers engaging the inner surface of the race A suitable cage is rotatably mounted within. the ring 5i and includes fingers which extend downwardly between the rollers as to hold them in the proper relative positions. A cylindrical sleeve iii is pressed tigl: y into the portion of the counterbore to engage the upper washer and hold the various parts oi the bearing in place. An inwardly extending e vided on the upper end or" the slflange defining a central circular o,

In order that the bolster member may be firmly attached to the bolster case it, the latter is shaped to provide a smooth upwardly facing annular surface iii surrounding the upper end of the bore it, and the upper portion of this bore is provided with internal screw threads to receive the threads 3i on the member An annular groove is provided in the threaded portion or" the bore in communication with the passage and a vertical groove extends downwardly from the said passage 26 and along the bore it for a short distance. To facilitate assembly, recesses may be provided in the outer surface of the cylindrical portion 33 of the holster, so that a suitable spanner wrench or the like may be employed to tighten the screw threads EFL-ma and bring the shoulder 35 into firm contact with the surrace 61. An annular gasket y be provided between these parts if desired, but this is believed to be unnecessary in most instances. It will be noted that when the parts are assembled, the holes ill register with the annular groove the lower end of the vertical groove '55 is somewhat below the threaded portion 3% of the bolster, and the step bearing 52 rests on the bottom of the bore i i in the bolster case.

The invention is arranged to support an upright rotatable spindle 55 having a cylindrical portion Si located within and in contact with the bearing rollers Below the cylindrical portion 61 the spindle tapers downwardly, and its lower end is rotatably supported in the step bearing socket Above the cylindrical portion 6'! the spindle tapers upwardly, and it is adapted to receive a suitable bobbin (not shown). A downwardly flaring ring 89 is pressed tightly on the sp 'tion to lie within the sleeve 51 when This ring 69 serves has an outside diameter sl diameter of the hole be so th with the withdrawal A whirl i! of -known construction is fitted to tely above the cylindrical lster, the whirl including a ey which surrounds the said por- The cover plate 22 carries an upwardly o laterally extending ai it which normally overlies the pul ey to prevent upward withdrawal of the spindle. By swinging the plate 22 about the scr-w the arm it may be withdrawn from its normal or spindle-retaining position.

The operation of the apparatus will now be a parent fr in above disclosure. The cavity will be lzept iilled with oil, and the oil is free travel through the passage into the grooves a from the groove 65 will fi l the a n the bols er case it, and oil from the bore rrax t he bore 35 in the bolster 29 Oil from the groove through the holes 4i]. runs the step bearing 22 will be submerged in oil, wi l the spindle S idle the oil level in ill be the same as that in the cavwhich is slightly below the bearing washer W" on the spindle S is in rotation, the effect ta er on its lower portion, in

' ation, will be to rdly into contact T us the hearing If any oil should the bore 35 w ity ts}.

gally by this ring. provides a considt n of any oil which upwardly beyono t--e bearing, and since this or" course will lower the oil level or head the cavity is, it definitely limits the trd movement or the oil. Accordingly there danger of the oil overnowing the top of the the step bearing d2 is slightly t lower end of the bore it will align h the spindle. reads 34-52 and the cooperating provide a simple and effective the bolster to the bolster e as, w enting any leakage of oil between these inis construction also ensures accurate positioning of bolster, so that all the bolsters and s, indies along the rail will be supported. at the same height, which is very impori of the sleeve 5 The interi erabie for the reoep 10 a is r.

r bOiSLSi.

loose shoulders ti lmeans M bile Bolster eases originally made for other types of bolster can be easily re-inachined to receive bolsters of the novl type disclosed herein. She apparatus is relatively simple and inexpensive to manufacture, and thoroughly dependable in service. With the mechanism disclosed, it is feasible and practical to operate spindles at unusually high speeds.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

. 2i mounting for textile spindles comprising a vertically elongated bolster case having a bore therein which is closed at its lower end, the upper end of the bore being open and surrounded by an upwardly facing surface, internal screw threads within the upper portion of the bore, a vertically elongated bolster extending downwardly into the bore and having an enlarged upper portion providing a downwardly facing shoulder, the bolster having external screw threads thereon below the shoulder engaging the screw threads in the bore, the said surface and shoulder cooperating to limit downward movement of the bolster as it is screwed into the case and to provide an oil tight annular joint, the bolster having a bore for the reception of a spindle and a counterbore in the said enlarged upper portion, a step bearing in the lower portion of the bolster bore to support the lower end of the spindle, an antifriction radial bearing mounted in the counterbore to support the spindle intermediate its length and means to supply oil to the interior of the bolster case and thence to the interior of the bolster, the bolster case being provided with an oil passage leading to the internally threaded upper portion of its bore and with a groove which extends downwardly from the said passage and along the bore to a point below the external screw threads on the bolster.

2. A mounting for textile spindles comprising a vertically elongated bolster case having a bore therein which is closed at its lower end, the upper end of the bore being open and surrounded by an upwardly facing surface, internal screw threads within the upper portion of the bore, a vertically elongated bolster extending downwardly into the bore and having an enlarged upper portion providing a downwardly facing shoulder, the bolster having external screw threads thereon below the shoulder engaging the screw threads in the bore, the said surface and shoulder cooperating to 5 limit downward movement of the bolster as it is screwed into the case and to provide an oil tight annular joint, the bolster having a bore for the reception of a spindle and a counterbore in the said enlarged upper portion, a step bearing in the lower portion of the bolster bore to support the lower end of the spindle, an antifriction radial bearing mounted in the counterbore to support the spindle intermediate its length, and means to supply oil to the interior of the bolster case and thence to the interior of the bolster, the bolster case being provided with an oil passage leading to the internally threaded upper portion of its bore and with an annular groove intersecting the said passage and lying within the said upper portion of its bore, the bolster having a hole extending through its wall and registering with said annular groove.

HOWARD A. SIMMONS.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 906,197 Byrnes Dec. 8, 1908 1,253,351 Chapman Jan. 15, 1918 1,555,693 Mueller Sept. 29, 1925 1,911,329 Staufert May 30, 1933 1,928,525 Etheridge Sept. 26, 1933 2,351,951 Gleitz June 20, 1944 2,421,734 Kennedy June 3, 1947 2,514,157 Hilton July 4, 1950 FOREIGN PATENTS Number Country Date 228,417 Great Britain Feb. 5, 1925

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