US1146147A - Automatic weft-replenishing loom. - Google Patents

Description

1. R. FITTON. AUTOMATIC WEFT REPLENISHING LOOM.

APPLICATION FILED JUNE 5,1913.

LIQGAQL Patented July 13, 1915.

2 SHEETSSHEET I.

COLUMIHA PLANOCIRAPH CO.,WASHINDTON, n. c.

i. R. FITTON. 7

AUTOMATIC WEFT REPLENISHING LOOM.

APPLICATION FILED JUNE 5,1913.

Patented July 13, 1.915.

2 SHEETS-SHEET 2 6 4 8 LMAQK COLUMBIA PLANUGRAP-H 120., WASHJAGTON, D. c.

ornron.

JOHN R. rrr'ron, on wonons'rnn, MASSACHUSETTS, AssIcnon T0 cnonr'ron & KNOWLES LOOM WORKS, A CORPORATION or MASSACHUSETTS.

AUTOMATIC WEFT-REPLENISHING- LOOM.

Specification of Letters Patent.

Patented July 13, 1915.

Application filed June 5, 1913. Serial No. 771,779.

the ordinary type, there is a'weft replenishing magazine at one end of the loom, either of the stationary, or rotary type, for holding the extra supply of bobbins or filling. carriers. Said magazine may contain bobbins or filling carriers of the same color or character, or of different colors or characters,

and from the magazine a bobbin or filling carrier of the desired color or character is transferred to the active shuttle, when the shuttle is in proper position below the transferrer, on the substantial or practical exhaustion of filling in the active shuttle, and the depleted bobbin in the shuttle is pushed through the central longitudinal opening in the shuttle, and through an opening in the bottom of the shuttle box, and dropped into a suitable receptacle, all in the usual and well known way. In this class of looms there is an opening through the shuttle binder, and also an opening through the front side or wall of the shuttle, for the entrance of the filling detector or feeler, which is adapted to enter through said openings and engage the filling in the active shuttle, to detect the substantial exhaustion of the filling, and on the substantial exhaustion of the filling put into operation the weft replenishing mechanism. c

For the successful operation of the class of looms referred to, it is necessary that the shuttle, after it has enteredthe shuttle box at the magazine end of the loom, should be properly positioned relative to the transferrer of the transfer mechanism, which transfers a bobbin from the magazine into the active shuttle, so that the bobbin will be properly transferred into the shuttle to take the place of the depleted bobbin therein, and cause the discharge of the depleted bobbin, and it is also necessary that the shuttle should be properly positioned in the shuttle box at the magazine end of the loom, so that the opening inthe front side or wall of the shuttle shall be in alinement with the opening in the shuttle binder on the shuttle box, to permit of the entrance of the filling detector on feeler through said openings, to engage the filling in the active shuttle.

In case the active shuttle is not properly positionedv in the shuttle box at the magazine end of the loom, the bobbin, transferred from the magazine into the shuttle, will not, at its butt end, pass between the holding jaws in the shuttle, or its tip end may engage with the shuttle body and tip the bobbin, to prevent the proper transfer thereof into theshuttle; and further, if the active shuttle 1s not properly positioned in the shuttle box at the magazine end of the loom,

the filling detector or feeler cannot enter through the opening in the shuttle'binder, and in the front side or wall of the shuttle,

to engage the filling, and put into operation the weft replenishing mechanism, on the substantial exhaustion of filling in the active shuttle. I p

The object of my invention is to provide a shuttle positioning mechanism, particularly for looms of the class referred to above,

.which mechanism is of simple construction, and can be applied to looms of ordinary construction, and is combined with the lay, and the picker stick, and the picker.

In the use of my improvements in shuttle positioning mechanism for looms, the ordinary shuttle binder may have less pressure on the'shuttle entering the box than o-rdi narily, and the picker stick and picker may move farther'toward the outer end of the shuttle box than ordinarily,to allow the shuttle to enter farther into the box than ordianism, and a shuttle box, and a shuttle, properly positioned under the transferrer,

and a detached part of the feeler mechanism. Fig. 2 is an end view of the parts shown in Fig.1, looking in the direction of arrow 'a,

same figure; some of the parts are left off in I this figure. Fig. 3 is a front view of the parts shown in Fig. 1, looking in the direction of arrow 6, same figure. Fig. 4 corre sponds to Fig. 3, but shows a different position of some of the parts, when the lay is in its back position, and, Fig. 5 is a plan view of the operating cam, detached.

In the accompanying drawings, 1 is a part of the loom side or end frame, 2 the lay, 3 the lay sword, 4 the hand rail, 5 the crank connector to the crank shaft, not shown.

6 is a stationary shuttle box, carried on the lay at the magazine end of the loom; 7 is the shuttle binder, on the front side of the shuttle box, and pivotally mounted at its outer end.

8 is the binder spring, attached at its outer end to the end of the lay.

9 is the picker stick, carrying the picker 10. The picker stick 9, carrying the picker 10, is allowed to move farther outwardly at its upper end than in the ordinary construction, so as to allow the shuttle to enter farther into the box and beyond its normal position.

11 is a stand bolted to the loom frame 1, and supporting, in this instance a magazine, partially shown in section at 12, for holding the extra bobbins, only one, 13, of which is shown.

14 is a rotary shaft supported in suitable bearings 11 on the stand 11, and having fast thereon the transferrer arm 15, carrying the transferrer 15, under which the bobbin from the magazine, to be transferred into the active shuttle to take the place of the substantially exhausted bobbin, is placed at the proper time.

16 is the filling detector or feeler. 17 is the shuttle, which has a central opening therethrough for the entrance and passage of a bobbin, also an opening 17 in the front side or wall thereof, see Fig. 4, for the entrance of the filling detector, which also passes through an opening 7 in the shuttle binder 7.

All of the above mentioned parts may be of the usual and well known construction in automatic weft replenishing looms, except that the picker stick and the picker are allowed to move farther outwardly at their upper end as above stated.

I will now describe my improvements for positioning the shuttle. In this instance on the cross girt l of the loom side 1, is secured, by two bolts 18, a stand 19, having on its upper end, and preferably made integral therewith, a plate 19, which is made inclined or cam shaped on its outer edge, the incline extending from the rear end to the front end of said plate. A bracket or stand 20 is secured to the front side of the lay sword 3, in this instance by two bolts 21. The outer end of the stand 20 carries a stud 22, on which is pivotally mounted the hub 23 of a lever 23. The lever 23 has on its lower end an offset arm 23", see Fig. 2, which carries a stud 24, on which is loosely mounted a roll 25, which roll travels on the cam shaped edge or face 19 of the plate 19.

The other end of the lever 23 carries a stud 24, on which is loosely mounted a rod head 25, which has secured thereto one end of an adjustable rod 26.

The rod 26 is supported and has a longitudinal movement in two guide stands 27, secured in this instance to the underside of the end of the lay 2. The outer end of the rod 26 is in this instance bent, and carries an extension or plate 26 thereon, which extends back of and engages the picker stick 9. On the rod 26 is mounted a helically coiled expansion spring 28, which extends between a collar 29, loosely mounted on the rod 26, on the outer side of the inner guide stand 25, and a second collar 30, adjustable on the rod 26 and attached thereto by a screw 31. The spring 28 act-s to move the rod 26 outwardly and hold the roll 25 in contact with the cam plate 19.

From the above description in connection with the drawings, the operation of my improvements in shuttle positioning mechanism will be readily understood by those skilled in the art. Then the shuttle is thrown from the opposite end of the loom, not shown, when the lay is on its backward stroke, it will enter the stationary shuttle box on the lay farther than the properposition of the shuttle, the tension on the shuttle binder permitting of this, and the further outward position of the picker stick and picker also permitting of this, as shown in Fig. 4. As the lay moves forward, the roll 25, carried on the lever 23, will travel on the inclined face 19 of the plate 19, and cause the lever 23 to be moved inwardly at its upper end, and cause the rod 26, pivotally attached to the upper end of said lever 23, to be also moved inwardly, against the action of the spring 28, and through the engagement of the plate or extension 26 on the rod 26, with the picker stick 9, cause said picker stick 9, carrying the picker 10, to be moved inwardly, from the position shown in Fig. 4, to the position shown in Fig. 3, and through the engagement of the picker 10 with the shuttle 17 move inwardly said shuttle to properly position it to receive a bobbin 13 from the magazine, which bobbin is placed below the transferrer 15 on the transferrer arm 15, and also properly position the shuttle to have the feeler opening 17 in the shuttle, in alinement with the opening 7 in the shuttle binder 7, for the entrance of the filling detector or feeler 16. On the return rearward stroke of the lay, the roll 25, traveling rearwardly on the plate 19, will allow the spring 28 to expand and hold the roll 25 in contact with said plate 19, and also move outwardly the rod 26 to its extreme outward position, as shown in Fig. 4, all as will be readily understood by those skilled in the art.

It will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 2 In a shuttle positioning mechanism for automatic weft replenishing looms, the combination with the lay, and the picker stick, of a longitudinally moving rod, supported in stands on the lay, and adapted to engage the picker stick at one end, and a spring connected with said rod to move it in one direction, a lever pivotally connected at one end to the other end of said rod, and pivotally mounted on a stand on the lay sword, and a roll on the other end of said lever, adapted to engage the cam shaped edge on a plate, and said plate, secured to a portion of the loom frame, the engagement of said roll with said cam causing the positive return of the shuttle to its normal position in the shuttle box, as the lay moves forward, after the shuttle has entered the shuttle box beyond its normal position.

JOHN R. FITTON.

Witnesses:

JOHN C. DEWEY, MINNA HAAS.

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

, Washington, I). C.

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