US1212402A - Automatically-threading loom-shuttle. - Google Patents

Description

A. E. RHOADES.

AUTOMATICALLY THREADING LOOM SHUTTLE.

APPLICATION FILED ocr. I2, Isls.

Patnted J an. 16, 1917.

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ALONZO E. RHOAIDES, 0F HOPEDALE, MASSACHUSETTS, ASSIGNOR, BY LIESNE ASSIGN- MENTS, TO DRAPER CORPORATION, OF PORTLAND,.1VIAINE, A. CORPORATION OF MAINE.

AUTOMATICALLY-THREADING LOGHI-SHUTTLE.

Specication of Letters Patent.

Patented-Jan. 16, 1917.

To all whom t may concern Be it known that I, ALONZO E. RHoADns, a resident of Hopedale, in the county of Worcester and State of Massachusetts, have invented anew and Improved Automatically-Threading Loom-Shuttle of which the following isa specification.

In an accompanying application for Letters Patent of the United States, liled October 11, 1915, Serial No. 55,330, I have described an automatic weft replenishing loom wherein the weft carriers are held in the magazine with their tips toward the warp. This involves a shuttle having its eye and threading end toward the warp when at the replenishing side of the loom. It is obvious that such shuttle cannot be automatically threaded in the same manner as in well known weft replenishing looms wherein the threading and eye end of the shuttle is near the icker when in the shuttle box at the replenishing side of the loom, as exemplified, for example, in United States Letters `Patent of Northrop No.529,940, November 27, 1894. A novel shuttle is thus required, and such novel shuttle constitutes the present invention.

The new shuttle is illustrated in the accompanying drawings,- wherein- Figure 1, is aplanview of the threading end of the shuttle. Fig. 2, is a vertical longitudinal section in the plane indicated by the line 2-2 in Fig. 1. Fig. 3, is acrosssection in the plane indicated by the line 3--3 in Fig. 1. Fig. 4:, is a cross-section in the plane indicated by the line 1 -4 in Fig. 1.

The shuttle A., has its eye a, at its end which is near the warp when occupying the shuttle box at the replenishing side of the loom. That is to say, the eye is located at the front and left hand end or the shuttle, namely, the end of the shuttle which is the advancing end during the first iiight of the shuttle after replenishment, so that the shuttle may be called left-handed.7

Fig. 1, shows the tip end of .a bobbin B, in the chamber C, of the shuttle. There is shown a sheet metal threader D, whichv is similar to that set forth in United States Letters Patent of Stimpson No. 933,497, September 27, 1909, excepting Jfor the supplementary hook E, the recess F, in the rear wall G, of the sheet metal threader, and the foreshortening of the guard I-I.

The supplementary hook E, is located at the entrance end of the threading passage I, of the threader. In the illustrated sheet metal construction the hook is integral with the front wall J, of the sheet metal threader and is bent iirst rearwardly from the inner edge of said wall and thence both forwardly in the direction of the first iiight-,of the shuttle whenreplenished and rearwardly, so that it extends diagonally across the entrance to the thread passage of the threader. The upper edge of the supplementary hook extends downwardly from ront to rear. rI`he lower edge c, of the supplementary hook is sufficiently far above the upturned inner end K, of the sheet metal threader and above the tension pad L, (when employed) to afford ample room for the passage of the thread. rThe extreme forward and rear point al, of the supplementary hook enters partly within` the recess F, in the rear wall of the threader but leaving room for the passage of the thread between the iioor of the recess and the point d, of the supplementary hook.

rIhe inner edge e, of the guard I-I, which overhangs the beak M, of the threader eX- tends laterally of the shuttle above the threading passage I, and between the transverse plane of the eye c, of the shuttle and the neighboring tip N.

As explained'in the aforesaid co-pending application, the supplementary threading is eected by the aid of a thread placer which carries the weft end of the incoming weft carrier into the space O, between the end of the weft carrier and the threader and below the supplementary hook E. At the same time a thread finger carries the thread of the incoming weft carrier downwardly close to the top of the shuttle forward of the inner edge c, of the guard I-I. As a consequence the thread of the incoming weft carrier is laid inal position closely approximating the line P-PinF-ig. Y2. This line extends lengthwise of the shuttle and back of the center line of theshuttle. Accordingly, the thread placer and thread linger carry the thread downwardly against the upper downwardly and rearwardly inclined edge b, of the supplementary hook E, and toward the rear wall G, of the threader. The thread as it is pressed downwardly by the thread placer and thread finger rides readily over the point d, of the supplementhreaded weft.

tary hook, passing through the' recess F, in the rear wall of the shuttle. The thread is thus placed in the threading passage l, below the supplementary hook. T he thread cannot spring outwardly and above the supplementary hook E, because the supplementary hook passes entirely across the threading passage I, and into the recess F, in the rear wall of the sheet metal threader and the application of some force is required to lpass a thread into the said recess and around the point of the supplementary hook. By the action of the thread placer and linger the thread is thus passed below the supplementary hook on its way from the inserted weft carrier to the weft end holder. When, then, the shuttle makes its first flight through the shed with its eye end in advance, the thread reeves around the base f, of the supplementary hook which serves as an initial threading device. On the second or return flight of the shuttle back to the replenishing side of the loom the thread is drawn between the guardH, and the beak M, this action being insured by the supplementary hook which holds the thread down in the thread passage Then during the third flight of the shuttle following replenishing, as the shuttle travels with its eye end forward, the thread passes beneath the beak M, and into the side eye a, in thel same manner as in the shuttle of said Northrop patent when used in the former weft replenishing looms of the type illustrated, for example, in the aforesaid Northrop Patent No. 529,940. Y

Owing to the circumstance that the hook E, is at the rear of the threader, and the edge e, of the guard H, is forward of the eye a, ample space is afforded for the thread to occupy the path indicated at P-P in Fig. 2, which brings it below the hook.

A flaring entrance mouth Q, for the thread exists between the hook E, and the rear wall G, which facilitates the direction of the thread to the point of the hook.

The Vhook serves as a guard to aid in preventing the accidental escape of the fully lclainor- Y e l. left-handed loom shuttle having the eye in the front side of theleft-hand end and having a sheet metal threader with a front wall J a rear wallV Gr; a beak M; a guard H, with a transversely extending inner edge c between the transverse plane of the shuttle eye and the neighboringV tip of the shuttle; a recess F, in the rear wall G; and a supplementary hool: E, formed integrally with the front wall of the threader at the inner edge thereof and bent rearwardly and alsor forwardly in the direction of the first flight of the shuttle .when replenished with'its point extending into the Y said recess F, thereby providing a flaring entrance Q, for the thread, and the upper edge of said supplementary hook extending downward from front to rear and said hook extending above thethreading passage I, in the threader, said hook constituting the sole engaging means for the thread as it passes from the weft carrier on the first flight of the replenished shuttle.

2. A left-handed loom shuttle having a threading passage and an eye in the front side of the left-hand end; a guard overhanging the outer end of said passage with its transversely extending inner edge between the plane of the shuttle eye and the l ing the outer end of said passage with its inl ner edge between the transverse plane of the shuttle eye and the neighboring tip of the shuttle; a wall, and a hook extendingdiagonally across the entrance of said passage and forwardly Vin the direction yof the rst flight of the shuttle when replenished and downwardly to its point and constituting the engaging means around which the thread reeves as it passes from the weftfcarrier on the first flight of the replenished shuttle.

e. An automatically threading left-handed shuttle having the eye in the front side of the left-hand end and a hook extending across the entrance of its threading passage,

said hook extending from one vside for` wardly in the direction of the first flight of the shuttle when replenished with its lupper edge inclined downwardly toward 'the point,

thereby forming a Haring thread entrance f y Y between the hook and the opposite wall of said passage, and said hool; constituting -the engaging means around which Vthe thread reeves as it passes from the weft carrier on the first flight of the replenished shuttle.

5. An automatically threading left-handed shuttle with the eye in the front 'side and at the left-hand end having a hoolrexte'nding across its threading passage, said hook extending forwardly in thedirection of the first flight of the shuttle when replenished with its upper edge inclined downwardly toward its point, and4 terminating at Vits point in a recess in the rear wall'of said 'passage, and said hook constituting the'engaging means around which the thread reeves as it passes from the weft carrier on the iirst with its upper edge inclined downwardly flight of the replenished shuttle. toward its point and constituting the engag- 10 6. An automatically threading left-handed ing means around which the thread reeves shuttle with the eye in the front side and at as it passes from the weft carrier on the first 5 the left-hand end having a hook extending flight of the replenished shuttle.

across its threading passage, said hook eX- In witness whereof, I have hereunto tending forwardly in the direction of the signed my name. first flight of the shuttle when replenished ALONZO E. RHOADES.

Gopies of this patent may be obtained for ve cents each, by addressing the commissioner of Patente, Washington, D. 0.

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