US1766830A - Weft-carrier magazine - Google Patents

Description

June 24, 1930. s. A. NELSON WEFT CARRIER MAGAZINE Filed Dec. 3. 1926 3 Sheets-Sheet 1 INVENTOP NELSQN 77 SAMUEL a y u 8 WEE-F V A-r TORNEYS 1m 24, 1930. s.,A. NELSON 1,766,330

IEPT CARRIER IAGAZINE Filed Dec. 3. 1926 3 Sheets-Sheet 2 INVENTOE 5AMUEL A. NELSON ATTORNE S June 24, 1930. s. A. NELSON v 1,766,830

WEFT ARRIER MAGAZINE Filed Dec. 5. 1926 3 Sheets-Sheet 3 INVENTO P SAMUEL. A NELSO N Patented June 24, 193i) UNITED STATES PATENT OFFICE AMUEL A. NELSON, OF, \VORCESTER, MASSACHUSETTS. ASSIGNOR TO CROMPTON & KNOWLES LOOM WORKS, OF WORCESTER, IIIASSACHUSETTS, A CORPORATION OF MASSACHUSETTS WEFT-CARRIER MAGAZINE Application filed December 3, 1926. Serial No. 152,489.

This invention relates to a weft carrier magazine for use in weft replenishing looms. lVhile capable of more or less general application, the invention is particularly applicable to a weft replenishing piclr andpick loom of the general type shown in my prior application, Serial No. 112,642.

t is the object of my present invention to improve the construction of the magazine therein shown, and particularly to provide a magazine which may be removed from the looi'n for replenishing by the operator.

A further object is to provide an improved end-holding device, by which the threading of the shuttle, after transfer, is facilitated.

I have also provided improved means for detaching the magazine from its support and for assisting the removal thereof.

A preferred form of the invention is shown in the drawings in which- Fig. 1 is a side elevation of portions of a loom embodying my improvements;

Fig. 2 is a detail sectional plan View, taken along the line 22 in Fig. 1;

Fig. 8 is a view similar to Fi 2 but showing the parts in a different position;

Fig. l is a plan view of the magazine and certain associated parts;

Fig. 5 is a detail sectional View, along the line 5-5 in Fig. 4; s

Fig. 6 is a. fragmentary side elevation, looking. in the direction of the arrow 6 in Fig. 4; V

Fig. 7 is a plan view of the mechanism for releasing and removing the magazine;

Fig. 8 is a front elevation of the magazine, detached from its support;

Fig. 9 is a sectional plan View, taken along the line 9-4) in 8;

Fig. 10 detail sectional view, taken along the line 101O in Fig. 8; p

11 is a detaii sectional elevation, taken along the line 1111 in 4; and

Fig. 12 is a detail plan view, looking in the direction of the arrow 12 in Fig. 8.

' Referring particularly to Figs. 1 and 4., I

arm 23. Fixed supports 2i and 25 are secured to the loom frame2O and constitute guideways for a movable magazine M. The magazine M comprises end members 26and 27 (Figs. 8 and 9) having recesses in their inner faces to receive the butts and tips of the weft carriers and to supportthe Weft carriers in vertically spaced groups, as clearly shown in Fig. 8. v

The magazine M rests upon an actuating member 30 by which it may be shifted vertically in accordance with certain pattern indications, all as fully set forth in my prior application. A transferrer or ejecting member 32 (Fig. e) is provided for advancing the weft carriers from a selected compartment of the magazine M to one of the shuttle boxes 22, the transfer being made through the front side. of the shuttle and the exhausted weft carrier being ejected through an opening in the rear Wall of the shuttle.

The transferrer has a pin 33 extending into a slot 34 (Fig. 1) in an actuating member 35 connected to the upper end ofa lever 36, mounted upon a hired pivot 37. The lower end of the lever is connected by an adjustable link 88 to a lever 39 having a cam' roll 40 engaged'by a side face cam 41 on the bottom or cam shaft 42 of the loom. By these connections the transferrer 32 may be actuated in any vertical position thereof.

The parts thus far described are in general, similar to those shown in my prior application, and for a more detailed description thereof reference is made to said application.

The construction of the magazine M is, however, somewhat different from that previously described and also the method of attachment to its actuating member 30. In my previous application, the magazine was firmly secured to the upper end of the actuating member, but in my present construction the magazine rests loosely upon the upper end of the actuating member 30 (Fig. 5) and is held from accidental displacement by a yielding spring hook 14.

Openings 45 (Fig. 8) may-be provided to. permit insertion of the tips of the bobbins, and L-shaped slots 46 (Figs, 1 and 6) are provided for the weft ends IV in the-end member 27. A handle 48 is also formed on the upper end of the magazine, and notches 4-9 in a rear lower face of the magazine M receive pins 50 (Fig. 4) in the actuating member 30 and assist in accurately connecting the magazine to its support.

For releasing the magazine and assisting in its removal from the loom, I have provided a plunger 55 vertically slidable in bearings 56 and 57 (Fig. 1) and adapted to engage the lower end of the magazine adjacent the spring hook l. When the plunger 55 is moved upward, the magazine is thus released from the hook and is raised to a position from which it may be easily removed by the operator.

A chain 58 (Figs. 1 and 7) passes over a guide bar or sprocket 59 and has its lower rear ends secured to a stud 60 projecting from the side of the plunger The lower front end of the chain 58 is secured to a second plunger 62 slidable in a bearing 64-. and having a foot plate or pedal 65 secured to its lower end. \Vhen the foot plate 65 and plunger 62 is depressed, the operating plunger 55 will be raised to release the magazine as above described and to assist in the removal thereof.

The transferrer-actuating lever 36 receives an operative movement at every rotation of the cam shaft 42, andthe connection of the lever 36 to the transferrer is controlled by a plunger (Fig. 1) and lever 71, the latter being pivoted at 72 and having its outer end connected by a stud 73 to an arm 7% mounted on a rock shaft 75, controlled by the weft detecting mechanism on the opposite side of the loom. These connections are shown in detail and fully described in my prior application.

It is desirable to prevent operation of the transferrer when the magazine is removed from operative position, and for this purpose I have formed the stud 73 as shown in detail in Figs. 2 and 3. The stud is provided with a shoulder or flange 76 seated in a recess 77 and confining a coil spring 78 therein. A pin 79 on the stud 73 is also seated in a corresponding recess in the arm 71.

\Vhen the pin is seated in. the recess, the stud 73 projects into an opening 80 in the arm 7 4, and the transferrer is under the control of the weft detecting mechanism. Whenever the magazine is to be removed, however, the operator will withdraw the stud 73 and turns it angularly, so that the pin 79 may rest against the outer face of the arm 71, holding the stud withdrawn from the opening 80 while the magazine is removed and replaced. I thus prevent any actuation of the transferrer when the magazine is not in operative position.

End holding device I will now describe the special provision which I have made for securing the ends IV of the weft, extending outward through the slots 46 from the weft carriers in the magazine.

For this purpose an L-shaped end holder (Fig. 8) is pivoted at 86 to a bracket 87 secured beneath the magazine M. A pin 88 (Figs. 11 and 12) is mounted in the holder 85 adjacent the pivot 86, and extends into a segmental recess 89 (Fig. 12) in the end of the bracket 87. The pin 86 and recess 89 thus act to limit angular movement of the end holder.

A spring 90 is secured beneath the bracket 87, with its outer end 91 hooked over the end holder 85. The spring acts to yieldingly swing the end holder rearward on its pivot 86, as far as is permitted by the stop pin 88 and recess 89.

Studs 93 are threaded into the front face of the upright portion of the end holder 85 and are each provided with springs 94L and segmental spherical washers 95, as clearly shown in Fig. 10. The washers 95 are pressed yieldingly against the end holder 85, and form convenient attaching points for the weft ends IV extending outward from the weft carriers in the magazine.

A vertically extending bar 96 is secured to the rear side of the end holder 85 and is engaged by a bar 97 (Fig. t) formed on the front of the lay 21. As the lay moves forward, the bar 97 engages the bar 96, and during the extreme forward motion of the lay the end holder swings about its pivot 86 in unison with the movement of the lay, thus keeping the end holder 85 and weft securing washers 95 closely adjacent the lay. IVith the ends held in this position the threading of the fresh weft carrier in the shuttle after transfer is much facilitated.

Having thus described the details of construction of my improved magazine and certain associated parts, and the operation thereof, the advantages which I have attained will be readily apparent. The entire magazine with its associated end holder may be easily removed from the loom, to be replaced by a filled magazine, and the operator can then refill the exhausted magazine at his convenience while the loom continues in operation without interruption.

lVhile the magazine to be refilled is detached from the loom, the ends W from the weft carriers may be drawn out through the slots 46 and secured to the end holder 85, so that the entire magazine is in condition for immediate use when it is replaced in the loom.

I have also provided means as above described for preventing operation of the transferrer during removal and replacement of the magazine.

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 I claim is:

1. In a weft replenishing loom, a loom frame, a magazine support fixed on said loom frame, a magazine removably mounted in said support, and an end holder mounted on said magazine and removable from the loom therewith, said end holder having forward and rearward movement with the lay.

2. In a weft replenishing loom, a loom frame, a magazine support fixed on said loom frame, a magazine removably mounted in said support, an end holder mounted on said magazine and removable from the loom therewith, said end holder having forward and rearward movement with the lay, and a spring to press said end holder yieldingly against said lay during the extreme forward motion of said lay.

In a weft replenishing loom, a loom frame, a magazine support fixed on said loom frame, a magazine removably mounted in said support, an end holder mounted on said magazine and removable from the loom therewith, said end holder having forward and rearward movement with the lay, a spring to press said end holder yieldingly toward said lay, and a stop to limit such movement of said end holder.

4. In a loom, a loom frame, a magazine having a plurality of vertically extended weft carrier compartments arranged one above another, means to support said magazine for vertical sliding movement on said loom frame, actuating means to raise and lower said magazine, a detachable connection between said magazine and said actuating means, an end holder pivoted to said magazine and having a separate attaching device for the weft ends from each compartment, and means to press said end holder rearward to a limiting position.

5. In a weft replenishing loom, a loom frame, a magazine support fixed on said loom frame, a magazine removably mounted in said support, a transferrer, operating means therefor, and readily detachable and replaceable connecting means by which said transferrer may be temporarily disabled when the magazine is to be removed from its support while preserving the adjustment of said transferrer operating means.

(5. In a loom, a loom frame, a magazine having a plurality of vertically extended weft carrier compartments arranged one above another and adapted to contain weft carriers of different kinds, means to support said magazine for vertical sliding movement on said loom frame, actuating means effec tive to raise and lower said magazine to bring a selected kind of weft carrier to SAMUEL A. NELSON.

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