US1475622A - Cloth roll for looms - Google Patents

Description

Nov. 27, 1923.

H. A. DAVIS CLOTH ROLL FOR LOOMS Filed Dec. 29, 1922 Patented Nov. 27, 1923.

UNITED STATES HARRY A. DAVIS, 01? HOPEDALE, MASSACHUSETTS.

CLOTH ROLL FOR LOOMS.

Application filed December 29, 1922. Serial No. 609,760.

To all whom it may concern:

Be it known that I, HARRY A. DAVIS, a citizen of the United States, and resident of Hopedale, county of Worcester, State of 5 Massachusetts, have invented an Improvement in Cloth Rolls for Looms, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to a cloth roll such as universally employed in looms and onto which the web of cloth is wound as the weaving operation proceeds. This cloth roll is usually positively rotated during the beginning of the winding operation and until the roll of cloth thereon has reached a sufficient diameter to be rotated by the frictional engagement of the take-up or sand roll with the periphery of the roll of cloth.

Such a familiar type of cloth roll is illustrated in the patent to Roy, 764,771 of I July 12, 1904.

The object of the present invention is so to construct a cloth roll that the end of the web of cloth first wound thereon will be held against slipping with respect to the roll so that the winding operation -may proceed without danger of the cloth slipping on the roll, becoming loose and winding about the take-up or sand roll, or otherwise becoming entangled in the loom,

The nature and object of the invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims.

As the present invention is concerned solely with the construction of the cloth roll it is only necessary here to illustrate and cerned with the operation of the cloth roll.

In the drawings:

Fig. 1 is a view in vertical cross section showing the breast beam, take-up or sand roll, guide roll, and cloth roll with the web of cloth wound on the cloth roll;

Fig. 2 is a plan view with the central section broken away showing a cloth roll embodying a preferred form of the invention;

Fi 3 is a view in vertical cross section showing a roll such as illustrated in Fig. 2 and the first few windings of the web in place thereon; a

Fig. 4 is a view in vertical cross section of describe those parts of the loom directly cona slightly different form of cloth roll em- 65 bodying the invention; and

Fig. 5 is a view similar to Fig. 4 of still another form of cloth roll embodying the invention.

The cloth roll of this invention is adapted for use in any type of loom wherein it may be found useful. The drawing illustrates an ordinary arrangement in which such a takeup roll may be employed. The finished web of cloth 1 passes to and extends about the periphery of a take-up or sand roll 2 journalled at 3 in the loom frame and extending across the loom adjacent the breast beam. The periphery of this take up roll is usually roughened or covered with friction material 7 which grips the cloth and insures it being held and taken up as the weaving operation proceeds. As illustrated the web passes from this take-up or sand roll over and about a guide roll 4c located at the rear of the takenp roll which thus maintains the cloth in contact with a greater portion of the take-up roll periphery. From this guide roll, and sometimes directly from the take-up roll, the web 1 is led to and wound about the cloth roll with which this invention is concerned.

The cloth roll serves as a temporary core for the roll of cloth and after the winding operation is completed this cloth roll is removed from the wound roll of cloth.

The cloth roll comprises a central body portion 5 of cylindrical form and of suflicient length to engage the cloth throughout its width. At its ends the cloth roll is provided with journals 6 which are mounted to slide in ways and is held up against the take-up roll but permitted to move away therefrom as the winding operation proceeds by suitable means which form no part of the present invention and which in varions forms are familiar to those skilled in the art.

At the beginning of the winding operation the cloth roll is usually positively rotated and for that purpose it is shown provided at one end with a gear toothed section 7 meshing with a gear 8 on the take-up roll 2. But as soon as the cloth has been wound sufficiently on the cloth roll to bring it to a diameter which will enable it to be driven satisfactorily by the frictional engagement of the take-up roll with the cloth, the cloth roll is forced away from the take-up roll and the gears 7 and 8 disengaged. Thereafter the winding operation is secured solely by the frictional engagement of the periphery of the take-up roll with the cloth all as illustrated for example in the patent to "Roy above referred to.

In starting the winding operation the operative wraps the end oi" theweb of cloth around the cloth roll, but it not infrequently happens that this end fails to grip the cloth roll so as to take care of the continually increasing web of cloth which often bulges and is caught by and wound around the take-up roll rather than around the cloth roll, or it may be wound around the guide roll or otherwise become entangled with the loom, thus injuring the cloth, interfering with the operation of the loomand delaying the weaving operation until the operative can properly restart the winding operation.

In this invention the cloth roll is provided with a groove extending longitudinally ot' 'the roll periphery through the clotl1engaging portion. In the form shown in F gs.

- 1 2 and 3 this groove 9 is tormed by cutting out a substantially semi-circular depression. The meeting edges 10 and ll between this groove and the roll periphery are sharply defined so as to catch and engage the cloth. In starting the winding operation the operative lays the end of the .web over the groove and wraps the cloth around the roll that at'least two layers lie over the meeting edges oi the groove. Thus the second winding oi the cloth tends to press the first winding ot the ciothagainst the meeting edges and down into the groove and as the winding operation proceeds this condition is repeated by the subsequent windings, so that the cloth is gripped and held and prevented from slipping with respect to the roll. I

As the cloth roll always rotates inthe same directiOmna-mely in the direction of:

the arrow in Fig. 3 the edge of the groove which is more effective in thus gripping and holding thecloth is that edge which points in the direction of rotation or the edge 10 of Figs. 1, 2 and 3. Consequently the invention may be embodied in grooves such for example as shown in Figs. 4 and 5 wherein only the meeting edge of the groove with theroll periphery which points in the direction of rotation as 12 in Fig. i and 13 in Fig. 5 is sharply defined.

The invention thus presents asimple and effective means for preventingthe slipping of the cloth on the cloth ,roll during the winding operation;

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

1. A cloth roll for looms having a cylindrical periphery provided with a groove extending longitudinally thereof throughout the cloth-engaging portion and with sharply defined meeting edges between the groove and the roll periphery whereby, after the cloth 1 as been wrapped around the roll and two or more ,times over the groove the cloth is held against slipping during the further winding of the cloth on the roll.

2. A clothroll for looms having acyli r drical periphery provided with a groove extending longitudinally thereof throughout the cloth engaging portion and in which the nieeting'ed'ge between the groove and the roll peripherypointing in the directionot rotation is sharply defined whereby, after the cloth has been wrapped around the roll and two or more times over the said ,meeting edge, the cloth isheld against slip- HARRY A. DAVIS.

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