US1030575A - Reed and beating-up mechanism for looms. - Google Patents

Description

PARNWORTH & T. T. JACKSON. REED AND BBATING-UP MECHANISM FOR LOOMS.

APPLICATION FILED OUT. 28, 1911.

Patented June 25, 1912.

ROBERT FARNWORTH ANT) THOMAS TROUGHTON JACKSON, OF BOLTON, ENGLAND.

REED AND IBEATING-UP MECHANISM FOR LOOMS.

T 0 all whom it may concern:

Be it known that we, ROBERT FARNWORTH and THOMAS TROUGI-ITON JACKSON, subjects of the King of Great Britain and Ireland, and residents of Bolton, in the county of Lancaster, England, cotton manufacturer and engineer, respectively, have invented a certain new and useful Improved. Reed and Beating-Up Mechanism for Looms, of which the following is a specification.

Our invention relates to improvements in looms for weaving and while it is particularly applicable to tape looms of the Poyser type can be applied with advantage to looms weaving wider goods, the object of the invention being to provide an improved reed and beating-up mechanism adapted to provide a better cloth or fabric and to lessen the number of break downs.

As will be well understood the most common form of reed and beating-up mechanism of looms is that in which the reed is fixed in a lathe beam and hand rail and reciprocated through the arc of a circle to and from the fell of the cloth, by crank mechanism, while in narrow looms such as those of the Poyser type, a vertical divided reed has been employed and likewise a reed and beatingup mechanism consisting of a number of cam-shaped plates intermittently rotated so as to receive the weft and press it up to the fell of the cloth;

The reed and beating-up mechanism constituting our invention is of an entirely different and consequently novel type and will be fully described with reference to the accompanying drawings, indicating two constructions which may be adopted in carrying out our invention and in which,

Figure 1 is a side elevation of part of a loom of the Poyser type showing the application of our invention, Fig. 2 similar view showing a modified arrangement and Fig. 3 plan of Fig. 2.

Our invention consists essentially of a number of reed dents, plates, wires or the like a adapted to be reciprocated in a substantially vertical direction or at such an angle as to at one time recede to enable the weft to be thrown across the shed formed by the warp threads 5, by the shuttle c and at another time to gradually approach the fell (Z of the cloth so as to beat or press the weft up to it. With this object in view the reed wires, plates or the like a are carried Specification of Letters Patent. Patentgd J 11116 25 1912 Application filed October 28, 1911. 7

Serial No. 657,249.

by a reciprocable frame 6 which may be actuated by crank, lever and link mechanism f or other suitable mechanism to give sutlicient dwell to enable the weft to be placed across the shed and also move sufficiently quick afterward to press forward the weft. The reciprocable frame 0 is suitably supported for the purpose referred to such as by standards or pillars 9 carried by the main frame 72, of the loom and the reed wires or plates a are secured to it at 2' so that the portion j which actually completes the beating up of the weft is quite rigid at the time this act-ion takes place. To this end the wires or plates a may be secured firmly by their upper or forward ends at 2' to the outer end of an arm 70 which overhangs the warp threads or proj ects toward the fell of the cloth. The wires may be secured rigidly and be spaced in any suitable way and be of any convenient gage as with ordinary dent wires. From the point 2' at which they are secured to the frame 6 they recede in a backward direction toward the heddles of the loom and in the direct-ion of the lower staves of such. The dent wires in side elevation may lie more or less in the direction named, that is to say, they may be diagonal or bent somewhat from the diagonal position, the bending being sometimes necessary in order to give proper clearance for the shuttle when the shed is open and also at one point for the more gradual pressing forward of the weft to the fell of the cloth. An important feature of the reeds in front elevation is that they may be splayed outward so that at the point nearest to the heddles the spaces bet-ween them are very wide compared to the spaces at the beating-up point. In other words the spaces are wedge-shaped, thus giving great freedom of movement for the warp threads, considerably lessening chafing and likewise minimizing warp breakage. The dent wires may be splayed outwardly to the full width of the heddles while at the beating-up point they are so close together as to be equal to the width of the tape or other fabric being woven. On the other hand we would have it understood that the reed dent-s may be arranged parallel to each other. Further the lower ends of the dent wires may be rigidly secured to the reciprocable frame or be resiliently arranged to enable them to move transversely of the loom if required. In any case the arrangement is such that the weft is gradually forced forward to the fell of the cloth and beaten up firmly and-regularly and in such a way as to produce good, straight and clean selvages; The other parts of the looms may be arranged as usaul.

Figs. 2 and 3 indicate a modification of the arrangement already described in which the reciprocable frame 6 is composed of rods slidable in swivel bearings m pivoted at n to the frame, it of the loom. The upper ends of the rods are rigidly connected together and receive and hold the dent wires in the manner already described while the lower end of one of the rods is provided with an arm 0 carrying a bowl 2) operating in conjunction with a grooved or other suitable cam Q mounted on shaft 1* and driven directfrom the main shaft 8 of the loom by gearing z, such as is also employed in the arrangement shown in Fig. 1. The arrangement in Figs. 2 and 3 is therefore more direct and while the reciprocable frame moves through its bearings m it can also move about the pivots 42, both motions being obtained by the action of the cam. The result of this action is that the reed dents a are traversed backward near to the heddles when the shed is open, thus giving greatclearance for the shuttle while allowing the dents to be brought forward toward the fell of the tape or fabric at the point of beat-up, in an almost horizontal direction. As by this time the reciprocable frame is traversed to about its lowest point it will be seen that this and the motion about the pivots n give a firm beat-up while the reed is nearest the pivotal points. Another advantage of this modified arrangement is that the oscillation of the dents due to the swiveling motion referred to have a marked effect in preventing any broken warp threads from becom ing locked when the shed is being changed by the heddles. The ends of the reed dents nearest the heddles are perfectly free and may be splayed outward in the manner previously indicated and likewise be resiliently arranged as previously described.

lVhat we claim as our invention and desire to secure by Letters Patent is 1. A beating-up mechanism for a loom, comprising a guide, a slidable frame carried by the said guide and provided with an arm arranged above the shed of the loom, a se ries of reed plates having their upper ends secured to the said arm over the tell of the cloth and in front of the shuttle, said reed plates being curved downwardly and rearwardly at their upper or beating-up parts and having their middle parts inclined downwardly and rearwardly to clear the shuttle and having their lower parts projecting through the shed behind the shuttle, and means for sliding the said frame to move the reed plates up and down crosswise of the shed.

2. A beating-up mechanism for a loom, comprising a stationary support, a guide pivoted to the said support, a slidable frame carried by the said guide and provided with an arm arranged above the shed of the loom,

a series of reed plates having their upper ends secured to the said arm over the fell of the cloth and in front of the shuttle, said reed plates being curved downwardly and rearwardly at their upper or beating-up parts and havingtheir middle parts inclined downwardly and rearwardly to clear the shuttle and having their lower parts projecting through the shed behind the shuttle, 0 and means for sliding the said frame to move the reed plates up and down crosswise of the shed.

In testimony whereof we have hereunto set our hands in the presence of two wit- 5 nesses.

ROBERT FARNWORTH. THOMAS TROUGHTON JACKSON.

lVitnesses VILLIAM HENRY TAYLOR, AMY EVINS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Images