US1372315A - Setts - Google Patents

Description

E H. RYON.

WEFT REPLENISHINYG LQOM. APPLICATION flLED APR. f2. 1918.

Patented Mar. 22, 1921.

. 2 SHEETS-SHEET l.

7 Ev H.RYON. WEF'I REPLENISHING LOOM. APPLICATION FILED APR. I2, I918.

Patented Mar. 22, 1921.

-2 SHEETSSHEE'I 2.

UNITED STATES PATENT OFFICE.

EPPA H. RYON, OF WALTHAM, MASSACHUSETTS, ASSIGNOR T0 CROMPTON '& KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHC- SETTS.

WEFT-REPLENISHING LOOM.

T 0 all whom it may concern 1 Be it known that I, EPPA I-I. RxoN, a citizen of the United States, residing at Waltham, in the'county of Middlesex and State of Massachusetts, have invented a new and useful W eft-Replenishing Loom, of which the following is a specification.

This invention relates to a weft replenishing loom of the type in which a fresh weft carrier is inserted before complete exhaus tion of the active weft carrier.

Such looms are commonly provided with weft detecting mechanism of the so-called feeler type by which the weft carrier transfer is controlled. When a weft carrier is ejected before complete exhaustion aweft thread extends from the ejected carrier to the adjacent selvage of the cloth.

It is the general object of my present invention to provide devices effective to. prevent this trailing weft thread or any part thereof from being carried into the cloth by the shuttle as it leaves the shuttle box in which the transfer has occurred.

.With this general object in view, an important feature of my invention relates to the provision ofa continuously rotated roll disposed substantially beneath the shuttle box when the latter is in. forward position, and so rotated that the weft carrier will pass downward at the front of the roll intothe usual can or receptacle. Suitable provision is also made forguiding the weft thread to theroll and for preventlng slack thread between the roll and the selvage. This provision may include notches out in the lay to engage the thread and prevent the thread from slipping forward along the slot in the lay toward the selvage as it ispulled downward. j

A further feature of my invention consists in the provision of means for straightenmg the thread as it is drawn through and out of the shuttle box by the roll, so that loops or kinks in the threads may not be caught between the shuttle and the wall of the shuttle box, causing breakage of the thread and maybe woven into Specification of Letters Patent. P t nt d Mar 1921 Application filed April 12, 1918. Serial No. 228,135.

My invention further relates to arrange ments and combinations of parts which will be herelnafter described and more particularly pomtedout in the appended claims.

A preferred form of my invention is shown in the drawings, in which- F igure 1 is a side elevation of a portion of a loom embodying my invention, the lay being shown in section;

1* 1g. 2 1s a plan view of the parts shown in Fig. 1, and i F 1g. 3 is a plan view of the roll and its driving mechanism.

Referring to the drawings, I have shown a loom s1de 10 supporting a multicolor magazine frame 11 on which is mounted a transferrer 12 of the usual type. The magazine and transferrer form no part of my inven t1on and are shown only in fragmentary form. I

The lay 13 is supported in the usual way by swords 14 pivoted to a rock shaft not shown, and the forward portion of the lay 1s cut away below the shuttle box to provide clearance for a roll 15 fixed to a shaft 16 (Fig. 3) rotatable in a bearing 17 in the end of an arm 18 pivotally mounted on a stud 19 fixed in a bracket 20 secured to the loom side 10. A stop 21 (Fig. 1) on the bracket 20 l1m1ts the movement of the arm and roll toward the lay, and a spring 22 disposed be tween the stop 21 and a lug 23 on the arm 18 normally holds the roll in the position shown in Fig. 1. This yielding support permits the roll to swing forward if any obstaple finds lodgment between the roll and the A grooved collar or pulley 24 (Fig. 3) is fixed to the shaft 16 and is connected by a cord or belt 25 to a double-grooved collar 26 loosely rotatable upon the stud 19. A second cord or belt 27 connects the collar 26 to the crank shaft or to some other suitable rotating member, and through these connections the roll 15 is continuously rotated in the direction of the arrow at (Fig. 1) while the loom is in operation. forming the bottom of the shuttlebox is pro- The plate 30 from the receptacle while the cover is in position. The plate 34 is provided with deep notches 35 through which the weft 7 thread may be drawn by the roll 15 while the intervening teeth engage and prevent exit of the weft-carrier.

'The successful operation of the mecha nism necessitates the prompt severing of the weft thread at a point closely adjacent the selvage, and for this purpose I provide a thread cutter 36 of the type shown in my rior Patent No. 939,445, issued to me ovember 9, 1909. My cutter 36 cooperates with blades 37 mounted on the temple 38 and is operated at each weft carrier transfer through a rod 39 (Fig. 1) This rod 39 corresponds to the rod 32 in my prior patent and is controlled and actuated by similar mechanism. 7 The operation of themechanism thus far described is as follows: When a substantially exhausted weft carrier C is ejected from the shuttle, it passes downward past the roll 15 and the b'aflle plates 33 and 3 1 to the position indicated at C in Fig. 1. The weft thread W assumes the position shown in full lines in Figs. 1 and 2 and is promptly severed by the thread cutter 36. As the lay 1 moves back the thread W engages the roll 15 which is preferably covered with felt or other similar fabric, and the weft end extending to the thread cutter is drawn quickly downward. The notches 31 prevent the weft thread from slipping along the slot in the'bottom of the shuttle box toward the thread cutter, and thus prevent the occurrence of slack thread which might be carried into the cloth.

As soon as the thread is cut, however, it has a tendency to snarl or kink as indicated at 4.0 in Fig. 2. In order to prevent such snarls or kinks from being caught between the binder or box plate and the side of the shuttle, I provide soft wool or bristles 41 secured tov the binder 4:2 andv engaging the side of the shuttle adjacent its inner end. As the weft thread W is drawn past this wool or bristles, the snarls are easily removed therefrom, thus preventing catching and breaking of the thread as it is drawn from the shuttle box.

While the severed end of the weft thread is being drawn downward by the roll 15 the thread extending to the weft carrier is being drawnrapidly upward and is being wound about the roll 15. Such rapid unwinding of theweft'from the weft carrier would frequently causethe weft carrier to be jerked from the receptacle if it were not for the baffle plates 33 and 34:. The position of the weft after it has beencaught by the roll 157is indicated at W in dotted lines in Fig. 1. e

The roll 15 is provided with a groove 15 through which a knife may be passed to re? move the weft thread therefrom at suitable intervals.

It will appear, therefore, that I have provided simple and reliable means for quickly removing the severed weft end from the shuttle box and also for removing the waste yarn said shuttle, a receptacle for the ejected weft carriers, a weft-engaging roll sup iiorl'ed by the loom frame and adjacent the lay when the latter is in its forward position, and means to rotate said roll in a direction to advance ejected weft carriers toward said receptacle and to pull downward the trailing weft end.

2. A weft replenishing loom having, in combination, a lay, a shuttle, means to eject a substantially exhausted weft carrier from said shuttle, a weft-engaging roll mounted on the loom and adjacent the lay when the latter is in its forward position, means to rotate said roll, and a yielding support for said roll, whereby said roll is permitted to swing forwardly out of normal position, when the normal positions of the lay or the roll are obstructed.

3. A weft replenishing loom having, in combination, a lay, a shuttle, means to eject a substantially exhausted weft carrier from said shuttle, a roll mounted on the loom frame and adjacent the lay when the latter is in its forward position, means to rotate said roll in a direction to draw the thread downward out of the shuttle, a thread cutter, and thread-guiding devices on the lay adapted to guide the severed thread from the cutter to the roll.

4. A weft replenishing loom having, in combination, a lay, a shuttle, means to eject a substantially exhausted weft carrier from said shuttle, a receptacle for the ejected a substantially exhausted weft carrier from said shuttle, a receptacle for the ejected weft carriers, a roll mounted on the loom and adjacent the lay when the latter is in its forward position, means to continuously rotate said roll, said roll being effective to engage the weft end connected to an ejected weft carrier and to unwind the remaining weft from said weft carrier, and means to prevent removal of said weft carrier thereby from said receptacle, said means comprising coacting baflle plates forming a cover for said receptacle and one of said plates having thread guiding notches therein.

6. A weft replenishing loom having, in combination, a lay, a shuttle, means to eject a substantially exhausted weft carrier from said shuttle, a roll mounted on the loom and adjacent-the lay when the latter is in its forward position, means to rotate said roll, in such a direction that it will engage and draw downward the severed weft end, and means to straighten said weft end as it is drawn downward by said roll.

7. A weft relplenlshing loom having, in combination, a ay, a shuttle, means to eject a substantially exhausted weft carrier from said shuttle, a weft-engaging roll mounted on the loom and adjacent the lay when the latter is in its forward position, means to continuously rotate said roll, to draw the trailing weft end downward, and weft straightening devices mounted on the side of the shuttle box and adjacent the mouth thereof, adapted to engage and straighten the severed weft thread as it is drawn into said box and downward therefrom by said roll.

8. A weft re lenishing loom having, in combination, a ay, a shuttle, means to eject a substantially exhausted weft carrier from said shuttle, a weft-engaging roll mounted on the loom and adjacent the lay when the latter is in its forward position, means to continuously rotate said roll, a shuttle binder and weft straightening devices comprising flexible fibers secured to the end of said shuttle binder, and engaging and pressing the trailing weft end against the side of the boxed shuttle, thereby straightening said weift end, as it is drawn downward by said ro In testimony whereof I have hereunto affixed my signature.

EPPA H. RYON.

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