US1212399A - Automatic weft-replenishing loom. - Google Patents

Description

Patented Jan. 16,1917.

2 SHEETSSHEET I.

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A. E. RHOADES.

AUTOMATIC WEFT REPLENISHING LO0M APPLICATION FILED OCT. 5. I915.

Patented Jan. 16, 1917.

2 SHEETS SHEET 2 I 1116 706077 JZZOILZ E. EhOddfiS.

'UNKTED orator...

ALONZO E. R'HOADES, 0F HOPEDALE, MASSACHUSETTS, ASSIGNOR, BY IYTESNE ASSIGN- MENTS, T0 DRAPER CORPORATIGN, 6F EOETLAND, MAINE, A CORPORATION OF MAINE.

Specification of Letters Patent.

Patented Jan. 16, 1917.

Application filed October 5, 1915. Serial No. 54,208.

To all whom it may concern:

Be it known that I, ALoNZo E.RHOADES, a resident of Hopedale'in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Automatic Weft-Replenishing Looms, of which the following is a specification.

In automatic weft replenishing looms wherein the replenishment is effected by ejecting a spent weft carrier from the shuttle and inserting a full weft carrier in the shuttle (as in the well-known Northrop or Draper loom, as exemplified, for example, in United States Letters Patent of Northrop No. 529,940, November 27, 1894:) it is important that no transfer of weft carriers should be made except when the shuttle is in the proper position in the shuttle box at the weft replenishing side of the loom. If the shuttle is not in the proper position when the transfer of weft carriers takes place breakage is apt to occur.

The object of the present invention is to insure the shuttle being in the correct position in the shuttle box at the replenishing side of the loom when the transfer of weft carriers takes place. If the shuttle is not in the correct position, mechanism is provided which prevents the action of the transferrer' so that no transfer of weft carriers takes place and consequently no breakage can occur.

The preferred embodiment of the present invention is illustrated in the accompanying drawings wherein- Figure 1, is a plan view of the shuttle box at the replenishing side of the loom. Fig. 2, is a front view of the said shuttle box. Fig. 3, is a vertical section through said shuttle box illustrating also so much of the transferrer and the magazine for filled bobbins as is necessary for an understanding of the present invention. Fig. 4, is an end view of the said shuttle box.

Referring to the drawings, A, is the lay; B, is the shuttle box at the replenishing side of the loom; C, is the shuttle; D, is a weft carrier in the shuttle; E, is a portion of the rotary magazine containing filled weft carriers F; G, is the swinging transferrer; H, is the transferrer dog pivoted on the lower arm of the transferrer and I, is the bunter on the lay which cooperates with the transferrer dog H. All of these parts are similar to those shown in the aforesaid Northrop Patent No. 529,940. During the normal running of the loom the transferrer G, occupies its elevated position shown in Fig. 3, ready to co-act with the spare weft carrier F, beneath it. The transferrer dog H, during the normal running of the loom occupies the position shown in full lines in Fig. 3, where it is beyond the reach of the bunter I, when the lay swings forward. When replenishment is required, the exhaustion or approaching exhaustion of the working weft is detected by one of the detectors such as are commonly employed in this class of looms, and the transferrer dog H, is swung upwardly so that its notched end J, is brought into the path of thebunter I, on the lay. Hence, when the lay swings forwardly the bunter encounters the dog H, and swings it to the position illustrated in the dotted lines shown in Fig. 3. This is accompanied by a downward swing of the transferrer G, which inserts a filled weft carrier in the shuttle C, and ejects the spent or nearly spent weft carrier D. This is the customary action of the Northrop loom and has long been well known.

The drawings also illustrate the usual picker K, and picker stick L, at the replenishing side of the loom.

When the shuttle has entered the shuttle box at the replenishing side of the loom it may not occupy the correct position, and the illustrated mechanism is such that in that event the transferrer dog H, will not be 0peratively encountered by the bunter I, and the transferrer G, will not act.

As shown in Fig. l, a horizontal lever M, is pivoted at a, to the shuttle box at the replenishing side of the loom and it extends forwardly outside of the picker K. The lever M, at its middle is provided with an abutment N, which is directly in the path of the outer end of the picker K. At its front end the lever M, is pivoted at b, to a fiector P, is downwardly and rearwardly in-V clined. The hunter 1, is provided with. a

downwardly extending projectionlt, which likewise has its front face 6, downwardly and rearwardly inclined. The hunter proper I, also has, as shown, a downwardly and rearwardly inclined face f. As shown in Pig. 3, the inclined faces d, e, and f, are all in the same plane. 7

Fig. 1, shows the shuttle at its proper position in the shuttle box to receive a fresh weft carrier. As here shown its outer end bears against the picker K, and the picker in turn bears against the abutment N, on the lever M. As a consequence the deflector P, occupies its extreme outer position with the inner end of the slot 0, against the shank of the screw stud Q. The shuttle cannot be driven outwardly any farther than is shown in Fig. 1. because the stud Q, prevents any' further outward movement of the shuttle.

V i Vhen the deflector P, occupiesthe position lifted as the result of the detection of ex haustion or approaching exhaustion of the working weft, the hunter 1, encounters the elevated transferrer dog and the transfer is effected.

hen the shuttle is driven out of the shuttle box at the replenishing side of the loom a spring S, swings the lever M, inwardly until the outer end of the slot 0, encounters the shank of the screw'stud Q3.

he deflector P, then covers the hunter 1.

Should the shuttle, on arriving at the shuttle box at the replenishing side of the loom when a transfer should take place, not enter the box far enough to swing the lever M, outwardly, the deflector P, will be left in a position covering the hunter 1, and with its inclined face (Z, in register with the uplifted transferrer dog Pf. Consequently, when the lay swings forward, the inclined face (Z, of the deflector encounters the transferrer dog and, as the result, the transferrer dog is swung downwardly, turning on its pivot g, instead of the transferrer G, being swung on its pivot 71,. During this downward swing of the transferr-er dog H, on its pivot y, it rides down the inclined faces (Z, f, and c, to the position shown in full lines in Fig. 3. I The-customary spring connections between the transferrer dog H, and its actuating mechanism permit this downward swing. Consequently, the transfor cannot take place until the deflector P,

is entirely removed from the path of the transferrer dog Pf. It is obvious that the deflector P, must he moved outwardly far enough to he out of reach of any portion of the rear face of the transferrer dog H, before the transferrer dog can he operatively engaged by the hunter 1. The organization of the deflector P, and its actuating devices is preferably such that the hunter I, cannot operatively engage the. transferrer dog H, unless'the deflectorrP, is moved to its extreme outer position with the inner end of its slot 0, against the shank of the screwstud Q, as'illustrated in Fig. 1. position of the shuttle in the shuttle box for the reception of the incoming weft car- This insures the exact proper rier. The shuttle cannot move outwardlyi any farther because the deflector P, is at its extreme outer position. Any failure of the shuttle to reach this extreme outer position results in the deflector P, obstructing the transferrer dog H, and Preventing its operative connection with the hunter 1. i

I claim 1. A weft replenishing loom having, in combination, a transferrer, a transferrer dog pivoted thereto, a lay, a hunter on the lay having a rearwardly and downwardly inclined front face and cotiperating with said transferrer dog, a projection exing a downwardly and rearwardly inclined front face. a picker, a picker stick, aslotted tending through the slot in "said deflector.

2. A weft replenishing loom'having, in combination, a transferrer, a transferrer dog, a lay, a hunter on the lay cooperating with said transferrer dog, a movable deflec tor alongside the hunter, a lever on the lay at the replenishing side of the loom 005perating with the picker to be moved thereby Q tending downwardly from the hunter havwhen the shuttle enters the neighboring shuttle box, a rod connecting said lever with said deflector whereby said deflector is moved away from the hunter when the shuttle is correctly located in the shuttle box, and means for limiting the movement of the deflector in both directions. 7

3. A weft replenishing loom having, in" combination, artransferrer, a transferrer dog, movable means located on the lay to control the action of the dog, and means located in the shuttle box and to render said governed by the position of the shuttle in transferrer operative when the shuttle is the shuttle box at the replenishing side of properly located in the shuttle box.

the loom cooperating With said transfer 0011- In Witness whereof, I have hereunto 5 trolling means so as to render said dog insigned my name.

operative When the shuttle is improperly ALONZO E. RHOADES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Estents,

' Washington, D. 0.

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