US1793144A - Shuttle box for weft-replenishing looms - Google Patents

Description

Fel.v 1'7, 1931. R\ `G. TURNER ,sHUTTLEBoX' FOR. wxFT REPLENISHING Looms Filed Feb". 19,' 1929 2 Sheets-Sheet 1 Feb. 17, 193i.

R. G, TURNER lS'IUTTLE BOX FOR WEFT REPLENISHING LOOMS Filed Feb. 19. 1929 2 Sheets-Sheet 2 Patented Feb. 17, 1931 UNITED STATES PATENT oFFlcE ,RICHARD G. TURNER, F WORCESTER, 'MASSACHUSETTS ASSIGNOR TO CROMPTON & KNOWLES LOOlv WORKS, OF WORCESTER, MASSACHUSETTS, A CORPQRATION OF MASSACHUSETTS SHUTTLE vBOX FOR WEFT-REPLENISHING LOOMS Application filed February 19, 1929.

T his invention relates to a shuttle box for a loom using two or more shuttles and in which two or more boxes are provided at the weft replenishing side of the loom.

More specifically, my invention relates to looms of thc type described, in which provision is made for transferring weft carriers by direct rearward and substantially horizontal movements. l

`t is the object of my invention to provide improvements in shuttle box construction by which the threading of the shuttles after transfer facilitated and the misthreading or breaking of filling is greatly reduced.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention 1s shown in the drawings in which Fig. 1 is a front elevation of my improved shuttle box construction;

Fig. 2 is a plan view thereof, partly in section, taken along the line 2-2 in Fig. 1;

Fig. 3 is an end view of the shuttle box, with certain parts omitted, and taken along the line 3-3 in Fig. 1; and

Fig. 4 is a sectional end elevation, taken along the line 4-4 in Fig. 1.

Referring to the drawings, I have shown a portion of a lay mounted on the usual swords 11 and designed for use in a double shuttle loom. An upper shuttle box and lower box 3() (Fig. 3) are provided inwhich pickers 21 and 31 (Fig. l) are slidable under the impulse of a picker stick 31.

Rigid frame members 4() extend upward at the Yrear of the lay 10, being preferably formed as continuations of a sheet metal frame or casing 41 enclosing the lay 10. A box member 42 is supported by the members and a top frame member 43 is secured to the box member 42 by bolts 44, the member 43 projecting over the upper shuttle box 20.

A bottom plate 32 is secured to the lay by screws 33Which plate forms an extension of the shuttle race. A partition of separating member 45 extends between the shuttle boxes 2G and 3() and is held in position by bolts 46 extending vertically through the bottom Serial No. 341,157.

tion `and rigidly disposed with reference to each other.

At its front end, the separating member `45 is extended both upward and downward, as indicated at 54 and 55. These upward and down-ward extensions are greatly reduced in width in the middle portion of the box, as indicated at 56, to permit horizontal transfer of weft carriers to the shuttles contained in the boxes.

The right hand end portions of the parts 54 and 55 are inclined or beveled, as indicated at 57 and 58, to facilitate entrance of weft into the openings 59 above and below the separating member.

Back binders 60 are pivotally mounted in the back vbox plates and 52 and are provided with longitudinal openings Y64, permitting rearward ejectionvof weft carriers from the shuttles. `Binder spr'ngs '55 (Fig. 2) of the usual type are also provided.

Reference to Fig. 4 will indicate that the bottom plate 32 is inclined downward and rearward and that the separating partition .45 is inclined upward and rearward. llhe object of placing the parts 32 and 45 at downward and upward inclinations isfor the accommodation of shuttles having` their lower surfaces disposed at angles substantially corresponding to the plane ofthe warp in the upper and lower sheds at the time when the shuttles are picked.

By thus forming the under faces of the shuttles at the angles of the sheds, all available space in the shed openings is utilized,

either for increasing the weft capacity of the shuttle or for increasing the-thickness of the upper or lower walls'of the shuttles. thereby increasing their strength and wear-l ing qualities.

The extreme out-er end portions of the separatingvmember 45 are extended upward and downward, as indicatedY at 70, but to a some whatless ext-ent than at the inner end portions 54 and 55. The portions 70 are again cutaway at 71 to permit Athe operation of a shuttle feeler and said portions are then again extended upward and downward, as indicated at 72, to provide front guides for the pickers 2l and 3l.

It is desirable that the pickers be separately adjustable, so that the upper and lower shutt es may each be boxed in the eXact desired position. F or this purpose, I provide a bracket 8O on the end of the lay l0, in which adju able stops 8l and 82 are threaded and adjusrably secured. By adjusting the stops 8l and SQ, the outer or boxed position of each shuttle may be established in an exact desired location.

As the front portions of the separating` partition Ll5 are entirely supported by said sep* arating partition and are entirely free at their upper and lower edges, the passing of a weft end orer or under said separatinl member is entirely unobstructed and there is much less probability of breakage than in the common construction where the weft end is drawn through the shuttle box after the shuttle.

I have thus provided an improved construction by which horizontal transfer of weft carriers and subsequent threading of the shuttles is greatly facilitated and also a construction in which the maximum available shuttle opening in the sheds is utilized.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what l claim is z l. ln a fly shuttle loom, double shuttle boxes having a T-shaped sepa-rating member between said boxes entirely supported from the rear wall of said double shuttle boxes and having upper and lower shuttle retaining projections at its front edge disposed in front of the upper and lower shuttles respectively and said boxes having unobstructed weft passages above and lbelow said separating; member at the front side of said boxes.

2. rlfhe combination in a loom as set forth in claim l, in which said projections are reduced in width at the middle portion of their length to permit weft bobbin transfer thereover and thereunder, the wider and narrower portions of said projections being connected by inclined portions.

S. ln a double shuttle loom, a pair of superposed shuttle boxes in which the bottom shuttle-supporting surfaces of said upper and lower boxes are inclined rearwardly npward and rearwardly downward with respect to a tangent to the path of swinging movement of the bones and corresponding substantially to the angles of the warp threads in the adjacent open sheds when the lay and bones are at back center.

1l. In Va double shuttle loom, a pair of superposed shuttle boxes in which the lower box is provided with upper and lower shut- RICHARD Cl. TURNER

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