US739041A - Top roll for spinning-frames. - Google Patents

Description

No.v739,041. PATBNTED'SEPT. 15, 1903.

J. J. WEISS.

TOP ROLL FOR SPINNING FRAMES.

APPLICATION FILED JUNE 27, 1902.

R0 MODEL. 2 SHEETS-SHEET 1.

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PATEN-TED SEPT. 15, 1903.

3. J. WEISS.

TOP ROLL FOR SPINNING FRAMES.

APPLIGATION FILED JUNE 27, 1902.

2 SHEETS-SHEET 2.

N0 MODEL.

UNITED STATES Patented September 15, 1903,

PATENT OFFICE.

AND LOUIS F. 'VVEISS, OF WORCESTER, MASSACHUSETTS.

TOP ROLL FOR SPINNING-FRAMES.

SPECIFICATION forming part of Letters Patent No. 739,041, dated September 15, 1903.

Application filed June 27, 1902. Serial No. 113,439. (No model.)

To all whom it may concern:

Be it known that 1, JOHN J.WEIss, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Top Roll for Spinning-Frames, of which the following is a specification.

This invention relates to that class of top rolls which are employed on worsted-spinnin g frames; and the especial object of this inventionis to provide a construction of top roll for this class of machine which may more readily adapt itself to'different diameters or bunches of yarn and in which the operation of each top roll will not affect the operation of the top roll which is mounted on the same shaft therewith.

A further object of this invention is to provide for lubricating the bearings of the top rolls in such a manner that an abundant supply of oil will always be maintained within the bearing of each roll, but which will not permit the excess of oil to work out onto the surface of the rolls or to injure the stock.

To these ends this invention consists of the improvement in top-roll constructions and of the combinations of parts therein, as hereinafter described, and more particularly pointed out in the claims at the end of this specification.

In the accompanying two sheets of drawings, Figure l is a front view of sufficient parts of a spinning-frame to illustrate the application of my invention thereto. Fig. 2 is a transverse sectional view of the same. Fig. 3 is an enlarged front view of the top-roll construction, partly in-section. Fig. dis a transverse sectional view of the same. Fig. 5 is a detail view of one of the oil retaining washers. Fig. 6 is a detail view of one of the positioning-collars, and Fig. 7 is a detail view of the bushing-spool which fits into each of the top rolls.

In that class of machines to which this invention relates the yarn which is to be spun or twisted is drawn from its source of supply and is deliverd to the spindles by means of drawing-rolls. Upon the reliable action of these drawing-rolls depends to a considerable extent the success of operation and the uniformity of product of the entire frame.

In ordinary worsted-spinning frames the lower rolls are fastened upon a shaft which may be driven from any suitable source of power.

Cooperating with and resting upon the lower rolls are the workers or top rolls. In this class of machines as heretofore constructed the top rolls have been arranged in pairs rigidly secured upon shafts. This ordinary arrangement of parts is open to the objection that the action of one roll interferes with and changes the normal operation of the other roll. This is especially true when the rolls do not wear down with exact uniformity-that is to say, in the ordinary form of worsted-spinning frames if one of the rolls wears down so that it is smaller in diameter than the-roll which is connected therewith the tendency of the smaller roll is to increase the peripheral speed of the larger roll, so that the larger roll will tend to produce too heavy a drawing action, while the tendency of the larger roll is to retard the'peripheral speed of the smaller rollthat is to say, in the use of the ordinary worsted-spinning frame it has been found in practice that the influence of one top roll upon the other top roll produces an undesirable wear upon the roll-coverings, in some cases making flat places on the rolls and in all cases requiring the rolls to be kept substantially equal in diameter-that is to say, if one roll of a pair of top rolls required re-covering or turning down the other top roll had to receive the same treatment, whereas in the use-of a toproll construction assembled according to my invention a considerable variation may be permitted between the diameters of the rolls, which willeffect a saving in the wear of the parts, a saving of the coverings for the rolls, a production of a more uniform grade of work,

and a saving of power required to operate. the

framing. It is to be understood also that all these advantages are secured in applying my improvement to drawing-frames as well as to frames which may be considered spinningframes in the strict sense of the term. Furthermore, in the use of this class of spinningframes it is necessary to keep the parts well oiled, and if a considerable amount of free oil is applied the oil is apt to soil the stock and is also apt 'to rot out the surface of the top rolls, especially if rubber-covered rolls are employed.

The particular objects of this invention are, therefore, to provide a top-roll construction for worsted-spinning frames in which each of the top rolls will operate independentlythat is to say, the action of each top roll will not interfere in any manner with the operation of an adjacent top roll; and a further object of this invention is to provide means for lubricating the top rolls which will provide a sufficient oiling capacity, so that the same will need only occasional attention, and which will not permit free oil to injure the stock or the surface of the roll.

To these ends in a top-roll construct-ion for worsted frames made according to this invention instead of having the shafts rotate with the top rolls the shaft of each pair of top rolls is arranged to rest at its ends on inclined tables and is drawn down by a spring-pressed saddle, but is not arranged to rotate, each top roll being independently journaled upon its shaft. The shafts are also preferably bored to provide oil-channels, and an oil-reservoir is provided within the hub of each top roll of suflicient capacity to contain a considerable supply of oil.

Referring to the accompanyingdrawings for adetaileddeseription of atop roll construction made according to my invention, as shown in Figs. 1 and 2, R designates the roll-rail of an ordinary woolen-spinning frame. Secured upon the roll-rail R is a bracket 11,which rests at its upper end upon the top rail T. The inclined arm of the bracket 11 forms a support for the other drawing-rolls, which need not herein be shown or described at length, this invention relating especially to the manner of mounting the top rolls. Bolted to or otherwise secured to the bracket 11 is an angleiron 12, and fastened at intervals along the angle-iron 12 are the supports 13, carrying at their upper ends the inclined tables 14. On their upper surfaces the inclined tables 14. are provided with middle ribs 15 for separating the ends of adjacent roll-shafts; also, extending up and formed integrally with the angle-iron 12 are the hooks 16. Near its front the bracket 11 is shaped to receive a bearingbox, journaled in which is a driven roll-shaft 17, and secured on the roll-shaft 17 are the bottom rolls 18, which may be covered with leather, rubber, or other flexible material in the ordinary manner. The parts thus far referred to are shown as arranged in an old and well-known form of worsted-spinning machine, sufficient parts of such an old spinning-machine being illustrated in the first sheet of drawings to show the relation of my improved internally-lubricated top-roll construction thereto.

The top-roll construction which I preferably employ is most clearly illustrated in the second sheet of drawings. As shown in Fig. 3, the body 23 of each top roll consists of a casting 19, having coverings 20, of leather,

rubber, or other compressible material. Fitting tightly into the hub of each top roll is a spool shaped bushing 21. (Shown most clearly in Fig. 7.) The spool-shaped bushing 21 is provided with perforations, and the reduced section of the spool-shaped bushing 21 is sufficient to provide a considerable oilreservoir to which the oil may be supplied and within which a considerable supply may be retained. Fitting into the ends of the hub of each top roll 19 are felt washers 22 for preventing the ln bricating-oil from working out. Each top roll is held in place on the shaft 23 by retaining-collars 26. To supply oil to the oil-reservoir within each of the top rolls, the shaft 23 is preferably bored out longitudinally to provide an oil-channel 24, which may be supplied with oil through a filling-tube 25. By means of this construction it will be seen that the oil-reservoirs of each pair of top rolls may be filled from a common filling-tube and that sufficient oil may be contained in said reservoirs for lubricating the top rolls for considerable periods without requiring further attention, said parts being constructed so that no free oil will work out to injure the stock or the roll-coverings. The means for drawing each pair of top rolls down into engagement with the bottom rolls are most clearly illustrated in Fig. 2. As shown in this figure, a wire hook 27 fits through the eye of each hook 1G, and mounted on the wire 27 is a saddle 30, which is normally forced down by a spring 28 to engage the middle of the shaft 23, the tension of the spring being regulated by a wing-nut 29.

In the operation of a top-roll construction as thus assembled it will be seen that the shafts 23 are supported at their ends on the inclined tables 14, so that they may move up and down thereon or maybe lifted therefrom to compensate for inequalities in the yarn or so that the shafts may tip to allow for variations in the diameters of top rolls, while by mounting the top rolls so that they are independently rotatable each top roll will act independently and the top rolls will be driven by the bottom rolls at uniform peripheral speeds, which has not heretofore been the case when the top rolls of this class of machinery have been rigidly connected together.

I am aware that numerous changes may be made in practicing my invention by those who are skilled in the art without departing from the scope thereof as expressed in the claims. I do not wish, therefore, to be limited to the particular constructions I have herein shown .and described; but

What I do claim, and desire to secure by Letters Patent of the United States, is-

1. In a spinning-frame, the combination of a top-roll shaft with a top roll independently journaled near each end of said shaft, each of said top rolls having an annular inclosed oil-pocket with channels from said oil-pocket extending through the bearing-surface of the roll, and the shaft being provided with chart IIO nels for supplying said oil-pockets from the center of the shaft.

2-. In a spinning-frame, the combination of a top-roll shaft with a top roll independently journaled near each end of said shaft, each of said top rolls having a spool-shaped hub turning therewith and secured therein so as to form an inclosed annular oil-pocket, and the shaft having oil-channels for supplying oil to the oil-pockets from the center of the shaft. i

3. In a spinning-frame, the combination of a top-roll shaft with a top roll independently journaled near each end of the top-roll shaft, each of said top rolls having a transverselyperforated spool-shaped hub turning therewith and secured therein to form an inclosed annular oil-pocket surrounding its bearing,

I and the shaft being bored out to form oilchannels for supplying oil to said pockets from the center of theshaft.

4- In a spinning-frame, the combination of a top-roll shaft, a top-roll journaled loosely near each end of the shaft, a spool-shaped casting fitting into the hub of each top roll to form an oil-chamber therein, felt washers for preventing the oil from the oil-chambers from working out, collars for holding the top rolls in place on their shaft, and a central oil-tube for supplying oil to the oil-chambers through passages formed in the top-r011 shaft.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. i

' JOHN J. WEISS.

Witnesses:

PHILIP W. SOUTHGATE, JOHN F. GRoWELL.

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