US98738A - Improvement in circular-looms - Google Patents

Description

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N. PETERS. PNOTO-LITHOGRAPHER. WASHINGTON. D c.

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CAROLINE BRYANT, (ADMINISTRATRIX OF THE ESTATE OF MERTOUN C.. BRYANT, L DECEASED,) 'OF LOWELL, ASSIGNOR TO VILLIAM J. TOVNE, OF NEWTONVILLE,

MASSACHUSETTS.

Letters Patent No. 98,7 3S, dated January 1I, 1870.

lznvmnovnuvmwir IN CIRCULAR-Looms'.

The Schedule referred to in these Lettera Patent and making part of the same.

To all whom it may concern Be it known that MERTOUN C. BRYANT, (dcceased,)

formerly of Lowell, in the county of Middlesex, and

State of Massachusetts did invent certain Improvements in CircnlarWcaving Machines, of which the following is a full, clear, and exact' description, reference being had to the accompanying drawings, making part of this specication, in which- Figure 1 is a plan of a circnlar-weaving machine, with the said improvements applied thereto.

Figure `2. is a central vertical section, onthe linexa: of fig. 1. v

Figure 3 `is a horizontal section, on the line y y of jFigure 4 isa perspective viewof one of the improved shuttles.

The quality of cord now manufactured by the 0rdinary circular-weavin g machine is more or less imper- `feet, owing to the fact of the meshes of the covering of the central cord, or core, being laid on in an irregular manner, on accountyof the .filling-threads not being guided and supported up tothe weaving-point, some of the meshes being ne and compact,wbile others arefcoarse and open, or separated from each other.

To remedy this defect is the object of this invention, which consists in a shuttle or carrier, the upper extremity lof which is provided with an eye, situated close up to the weaving-point of the covering, by which means the lling-thread is guided and supported in, the eye up to this point, before comingin contact with the warp-threads, whereby all unnecessary friction, heretofore occasioned by the filling dragging upon the warp, isavoided, and a smoothly-laid covering,of uniform and even texture, is produced. 4The shuttle is also of otherwise vpeculiar construction, as will be explained hereinafter. c

To enable others `skilled in the art to understand and use this inveution,.the manner in which it is carried out will now be desciibed.

In the said'drawings- A is the fratrie-work of a circular-weaving machine,

from the centre of which rises a vertical tube, B,

`through whichpasses the core or central cord a.

Surrounding the tube is ashort shaft, B', to the top of which is secured a horizontal cani-plate, C, provided with circular grooves, b, and revolved by bevelgears, D E.

, Within the grooves I) rest the lower ends of a series of frames or carriers, G, provided with spools or bobbins H, which are free to turn upon their central pins d, when the thread is to be unwound therefrom.

Each spool carries a warp-thread, e, and its spool-carrierG is moved, by the revolution of the cam-plate C, to and from the centre, in one'of a series of radial slots, f, made in a horizontal plate, I.

Each warp-thread is conducted behind4 a standard,- K, on its carrier, and thence under a weight, L, tted to slide thereon, from which it is led through the top of the standard to the weaving-point g.

Above the weight L, and sliding on the standard K, is another weight, M, whichis provided with a projection, t', at its-top, which rests in one of a series of notchesin a horizontalratcl1et-wheel, H', on the top of the spool. f

As the warp-thread is drawn up in the formation of the cord.- the" weight L is raised, so as to elevate the weight M sudciently to lift the projection 'tout ofthe notch in the wheel H', when the -spool' will revolve, and let out the warp-thread until the projection falls into the next notch in the wheel H'.

The plate I, besides being provided with a series of radial slots, f, is'also" provided with a circular slot, h, through which project and in which revolve two carriers or shuttles N, the basesof which are secured to the revolving cam-plate C. Y

These shuttles N areplaced diametrically opposite each other, and are of the form shown in Iig. 4, ris'- ing vertically from the cam-plate C to 'a horizontal plane, a little above the top of the standard K'.

From this plane they incline upward to the weav?V ing-point g, the upper extremity of each shuttle terminating in a point, (slightly rounded,) which is provided with an eye, Z, through which the filling-thread m is conducted from its spool O, (under the cam-plate 0,) up through an opening, n, in the cam-plate, and through `the circular slot h, and a notch, o, in the outside ofthe shuttle, the thread being tb us guided and supported up to the weaving-point.

As the cam-plate G is revolved by the connections described,- the carriers, with their spools, are moved back and forth within the radial slots f of the plate I, while the shuttles revolve in the circular slot h in said plate, causing the filling to pass alternatelyv over and under the warp-threads, as desired. l

The front portion, 5, of the shuttle is rounded oi, to

facilitate its passage under the'warps, and prevent the` latter from dragging on and creating unnecessary friction with the filling before their union at the weavingpoint, by which arrangement, the meshes of the covering of the core or central cord are laid coinpactly thereon, with uniformity and regularity, thereby producing a smooth and evenly-nuished article, which passes over pulleys, and is taken up by .a weight, P, or other suitable device.

\Vhat is claimed as the invention of MERTOUN C. BRYANT, deceased, and desired to be secured by Letf ters Patent, isv The shuttle N, constructed with the eye l and rounded portion 5, substantially as and for the purposes set forth.

CAROLINE BRYANT,

Ezecutriz; Witnesses:

S. IV. STIGNEY, S. E. RAYMOND.

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