US363425A - Island - Google Patents

Description

(No Model.)

A. R. SHERMAN. SPINDLE sUPPoRT P0P. sPINNlNGMAGHINEs.

No. 363,425. Patented May 24, 188?.

ATTORNEYS.

lUNITED STATES PATENT OFFICE.,

ALBERT B1. SHERMAN, OF PAWTUOKET, RHODE ISLAND, ASSIGNOR', BY MESNE ASSIGNMENTS, TO THE SAWYER SPINDLE COMPANY, OF BOSTON, MASSA- CHUSETTS.

SPINDLE-SUPPORT FOR SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No.363,425, dated May 24, 1887.

Application filed July 3, 1892. Serial No. 65,803. (No model.)

To all whom, it may concern:

Beit known that I, ALBERT R. SHERMAN, of Pawtucket, in the county of Providence and State of Rhode Island, have invented a new and Improved Spindle-Support for Spinning- Machines; and I do hereby declare that the following is a full, clear, and exact description of the saine, reference being had to the accompanying drawings, forming part of this specixo iication, in which Figure 1 is a vertical section of the bolster, bolster-case, whirl, sleeve, and rail, the spindle being shown in side elevation; and Fig. 2 is a detail side view of the bolster detached.

The objectyof my invention is to provide an improved construction and arrangement of the spindle, bolster, and bolster-casein a spinningspindle which will allow the spindle, when in action, to find its own center of rotation when zo unequally loaded, and which will insure easy ruiming with the least possible noise and highest speed.

To these ends my invention consists in the construction and arrangement of parts, which I will rst proceed to fully describe, and then explicitly indicate in the claims.

In the drawings, A represents the rail of the spinning-frame, which carries the spindles of the machine. B is the bolster-case of one of 5o the spindles, in which is suspended the bolster D, thatl forms a direct bearing for and carries the spindle E, with attached sleeve G and whirl F. The bolster-case B has a seat that rests upon the top of the rail, and has a closed bottom or socket portion that projects d ownwardly through the rail, which forms the oilreservoir, and upon the exterior of which socket portion is formed a screw-thread, upon which turns a nut, C, that clamps the bolster- .io case firmly to the rail. rIhe upper end of the bolster-case has an annular groove, c, the inner wall of which groove is lower than the outer one. oil that may rise from centrifugal action, and

its inner wall being ofless height than its outer one it also acts somewhat after the manner of a funnel to facilitate pouring the oil'into the case. From the seat of the bolster-case there rises a hook, d, which extends over the top of This groove serves to catch any the whirl and prevents the spindle from being 5o pulled out by its frictional contact with the bobbin when the latter is removed.

The bolster D, it will be seen, forms the direct bearing for the spindle. It is constructed in the form of a hollow socket with a ange or lip, a, at its upper end, which rests upon the inner wall of the top portion of the bolstercase, and by which flange the said bolster is suspended. The external portion of the bolster from the lip or iiange a to the point g bclow the whirl is a true cylinder, while from point f/ to its lower end it preferably tapers to a smaller diameter, as shown. rIhe bolstcrD has also at its top a lug or tooth, e, that drops into a notch in the top of the bolster-case and positively restrains the bolster from turning in its case. Now in fitting the bolster to the bolster-case the external diameter of the cylindrical portion of the bolster between lip a and pointg is made somewhat smaller than the corresponding inner periphery of the bolstercase, so that the bolster ts loosely in the bolster-case, and is capable of slight lateral movement throughout its entire length as a whole.

The described bolster is detached from the bolster-case, by which I mean to signify that the bolster is not a fixture in the case-that is, is nota permanent immovable part of the case, but rather has enough play therein to enable the bolster to have sufficient movement under the strain of the spindle to compensate for and take up the jar due to rapid rotation and unequal loading of the spindle, the said bolster being, however, restrained from rotation in the case with the spindle by means of a projection or pin, as herein described.

Then this bolster-case is lilled with oil, a lm of oil is distributed between the bolster and its case,that acts as a cushion to the slight lateral movement of the bolster throughout the whole length of the same, and effectnally prevents the vibratory contact and noise oceasioned by the parts, and permits the spindle to be run at a much higher rate of speed.

Now I am aware of the fact that a iibrous lining has been placed between the bolster and the case; but this rapidly wears away. I am also aware that the bolstcrhas been suspended in the bolster-case by a close-iitting ball-andsocket joint located in the plane of the whirl and also by a square shoulder, which joints had a loose tting above and below, which permitted the spindle to vibrate about the point of support as a center; but with this construction, if there is any variation in thelength of the sleeve G, the whirl might be above or below the close-fitting joint, and the strain of the band passing around the whirl would tend to pull the spindle out of its true axial position. Furthermore, this ball-and-socket joint, or any equivalent thereof,I which forms a center of oscillation,involves a close iitting at that point, which would preclude the free lateral movement of the bolster in its case through- .out its entire length.

The essential features of my invention,there fore, are the peripheral loose -fitting of the bolster in its case throughout the entire length of the bolster in connection with the closed bottom of the case, vwhich together forms an oilcushion between the bolster and its 'case throughout the entire length of the bolster, and in connection with this the means for positively restraining the bolster from turir ing, and also for supporting the bolster in its case, consisting of a shoulder that may be either located above the whirl, as shown in the drawings, or below the whirl, as shown in another pending application tiled by me January 25, 1882.

The cylindrical looseftting surface of the bolster with oil-cushion extending from a to g, it will be seen, extends asufiieient distance upon both sides of the whirl to allow for slight variations in the latter and still prevent the pull of 'the band from disturbing the proper aXial position of the spindle,which latter runs with a true, free, easy, and smooth movement.

The lower end of the bolster is provided with a hole, I), which permits the oil to pass through and lubricate the spindle. This end of the bolster, which is preferably tapered from the line g to asmaller diameter at its bot-tom, has a larger annular oil-space between'it and the bolster-case than the space above, and the oil in this not only acts as a cushion and assists in taking up the same movement as the oil-cushion in the space above line g, but this increased oil-space at the lower end allows the end of the bolster and spindle to vibrate about the suspending-lip a, and co operates with the lateral play of the bolster as a whole in permitting the spindle to find its own center of rotation when the center of gravity, or, rather, the running center, is changed by irregularity in bobbin.

Upon the inner periphery of the bolster I form a spiral groove, f, which serves to effect a better distribution of the oil throughoutthe bearing-surface of the spindle.

In regard to the feature of positively locking the bolster to the bolster-case, to prevent the former from turning, this I do not claim, broadly, but only said feature when combined with the bolstcr-case with a closed bottom,

chamber `of the bolster-case as the foot of the Y spindle wanders to seek its true center of rotation, the bolsterbeing restrained from rotation in the bolster-case by means of the stop or lug e.

Having thus described my invention, what I claim as new isl. The combination, with the bolster-case having a closed bottom, of the bolster having a step for the spindle and fitted loosely in the bolstercase peripherally throughout its Whole length, whereby when said case is filled with oil an oil-cushion is 'formed between the interior of the bolster-case and the exteriorl of the bolster throughout its length, and the bolster is left free to vibrate as a whole against said oilcushion laterally in all directions, substan'- tially as described, and for the purpose set forth.

2. The combination of a bolstcrcase having a closed bottom, a bolster having a step for the spindle and iitted loosely within the bolstercase throughout its length, forming a chamber between the two for oil and permitting free lateral motion as a whole, and means for posi tively restraining the bolster from turning, substantially as and for the purpose described.

3. The combination of a sleeve-whirl spindle, a bolster-case having a closed bottom, a bolster itted loosely within the bolster-case throughout its entire length and forming an oil-chamber between the two, in which the bolster and spindle are capable of motion in a lat eral direction as a whole, and means for posi tively restraining the bolster from turning, substantially as and for the purpose described.

4. The combination, with the bolstercase having a closed bottom, of the bolster having a lip or iiange, ct, at its top for suspending it in the bolster-case,and ttin g loosely throughout its length in the case to form an oil-cush- 'ion chamber, substantially as and for thc purpose set forth.

5. A spindle, a supporting-tube closed at its bottom and having a chamber to contain oil, and'a detached bolster placed in the chamber of the supporting-tube and moving with the spindle as its foot seeks its true center of rotation, combined with means to connect the tube and bolster and positively prevent the rotation of the bolster with the spindle, substantially as described.

The above specification of my invention signed by mein the presence of two subscrib ing witnesses.

l ALBERT R. SHERMAN. Vitnesses:

Enwn. W. Bran, SoLoN C. KEMON.

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