US721206A - Filling tension device for looms. - Google Patents

Description

PA'TBNTED FEB. 24, 1903. B. F. LEE. FILLING TENSION DEVICE FOR LOOMS.

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APPLICATION FILED JULY 30, 1902.

r0 MODEL;

UNITED STATES PATENT (OFFICE.

BENJAMAN F. LEE, OF BELTON, SOUTH CAROLINA, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

FILLING TENSION DEVICE FOR LOOlVlS.

SPECIFICATION forming part of Letters Patent No. 721,206, dated February 24, 1903.

Application filed July 30, 1902. Serial No. 117,597. (No model.)

To aZZ whom it may concern: ed on the rear end of the slide, the shipper S, Beit known thatI, BENJAMANF. LEE,acitiknock-E lever-7, Fig. 1, and the weft-hamzen of the United States,and aresident of Belmer W may be and are all of usual or wellton, county of Anderson, State of South Carknown construction, the lay being provided 55 olina, have invented an Improvement in Fillwith a shuttle-box at each end, as usual, and

ing Tension Devices for Looms, of which the in Fig. 1 the top or cover plate 8 of the shutfollowing description, in connection with the tle-box B is broken 0% at its inner end to accompanying drawings, is a specification, show the back wall 9 thereof. The raceway like characters on the drawings representing of the lay is transversely recessed at 10 oppo- 6o 10 like parts. site the fork 6, as is usual; but no grating or This invention relates to looms for weaving; grid is employed in my present invention, as and it has for its object the production of I use other and novel'means fol-imparting to novel means for acting upon the filling at the the filling the requisite tension when pretime the latter, if properly laid, engages the sented to the filling-detector on the detecting 65 I 5 usual filling-fork, so that the operation of the beat of the lay.

latter is rendered more accurate and effective. Adjacent the guide 4 I mount on the breast- In order that the filling shall tilt thefork, it beam a stand 12, and for convenience it may is common to provide the lay with a rack or rest upon the offset 11 of the guide 4, Fig. 1, grid to support the filling in front of the fork andthe stand is held in place by set-screws 70 as the lay beats up, and sometimes this de- 13,'extended through a slot 14 in the stand, vice has been reinforced by putting more tenthe latter being transverse to the breast-beam. sion on the filling in the shuttle. Both of By means of the slot and set-screws the stand these devices are objectionable, because lint can be adjusted fore and aft relatively to the is liable to choke the grate and impair the lay. I have shown the stand as provided 75 proper action of the fork, and owing to the with a longitudinal upturned web 15, Fig. 2, closeness of the grate-bars to each other any having at its outer end an ear 16 and at its looseness in the lay or the fork-support will rear end a housing 17, (shown in section, Fig. cause the tines of the'fork to strike the grate 1,) the ear being higher than the housing, and prevent the detecting action of the fork, and in said two parts I mount a longitudi- 80 while the increased tension on the filling in nally-slidable member, shown as abar 18 19, the shuttle causes the filling to pull too hard having a collar 20 fast thereon. The part 18 on the selvage when the shuttle is going across is preferably made square in cross-section, the lay. By my present invention I'am ensliding in a correspondingly-shaped hole in abled to dispense entirely with the grate in the housing 17 to prevent any rotative move- 8 5 5 front of the filling-fork and to avoid putting ment, and between the collar and the car 16 any extra tension on the filling in the shuttle. the cylindrical part 19 of the slidable mem- The various novel features of my invention ber is surrounded by a suitable coiled spring willbe hereinafter described,and particularly s which normally maintains the parts in the pointed out in the following claims. position shown in the drawings. Atits rear exc Figure l'is a partial plan view of a loom, tremity the member 18 19 has mounted upon taken at the side on which the filling-fork is itbyaspecies of knuckle-jointahead, (shown located, with one embodiment of my invenseparately in Fig. 3,) the head comprising a tion applied thereto. Fig. 2 is an enlarged base 21, a projecting central web122, provided transverse sectional view on the line 2 2, Fig. with an enlarged extremity 23, and parts 24 95 1, looking toward the left. Fig. 3 is an en- 25 of a knuckle-joint. Felt, cloth, leather,

larged perspective detail of the thread-engagor other suitable non-metallic yielding mateing portion of the tension device to be derial is applied to the web, as shown atO, and scribed, and Fig. 4 is an enlarged plan view held in place by side plates 26, clamped to of a modification of the part shown in Fig. 3. the web by a suitable bolt 27. The end of the ma The lay 1,'breast-beam 3, guide 4 for the part 18 is oppositely shaped to the knuckle fork-slide 5,the filling-fork 6,pivotally mountportion 24. 25 of the head to cooperate therewith, and a combined pivot and clamp-bolt 28 connects the head with the slidable member, tightening of the bolt holding the head rigidly in adjusted position on the member 18 19.

Referring to Fig. 2, it will be seen that the slidable member isinclined to the horizontal in order that the head thereof may engage properly the back wall 9 of the shuttle-box as the latter beats up, and normally the head is so located that as the lay heats up the head and back wall of the shuttle-box will engage prior to the instant at which the filling will engage the detector or fork 6 on the detecting heat.

It is understood that in the structure herein shown the filling-detector operates on alternate beats of the lay, as is common in looms.

Remembering that when the shuttle is in the adjacent or left-hand shuttle-box B the filling t, Fig. 1, will extend from the edge of the cloth to the delivery-eye of the shuttle, it will be obvious that as the latter beats up on the detecting beat the thread will be caught between the covering or cushion C of the head on the slidable member and the back wall of the shuttle-box,and thereby clamped. This causes the thread to be held suificiently taut between the edge of the cloth and the point at which it is clamped to enable it to present sufiicient resistance to tilt the fork or detector, the spring s yielding as the forward movement of the lay moves the slidable member 18 19 toward the front of the lay. The collar 20 limits the rearward movement of said member as the lay swings back.

The object of the grid commonly used is to support the filling immediately in front of the filling-detector, so that the filling will act upon and tilt the detector. By means of my present invention it will be manifest that I entirely obviate the use of the grid or equivalent device, and thereby present a clear path for the tines of the fork or detector as the lay beats up, and yet I provide the requisite tension on the filling-thread to enable it to operate the fork properly. By making the covering 0 of the tension device non-metallic and of some soft or yielding material the thread is not damaged or broken no matter how soft or fine the filling may be, and so, too, the latter is firmly held between the covering 0 and the back wall of the shuttle-box at the time it is clamped. By my invention I also obviate the use of any device to vary the tension of the filling in the shuttle, which latter is objectionable, as hereinbefore pointed out.

In Fig. 4 the head 30 is connected by a knuckle-joint with the end 18 of the slidable member, substantially as hereinbefore described; but said head is cut away to leave a projecting check 31 and a recessed portion 32, while a removable cheek-piece 33 is adapted to rest in the recess and be clamped therein by a suitable bolt 34. A cushion or block 35, of felt or other suitable yielding material, is clamped between the cheeks 31 and 33 by means of a clamping-bolt 36,extended through the cheeks and the cushion 35.

By the adjustable connection between the head and the slidable member I am enabled to adjust the head so that the filling-engaging portion thereof will be practically in parallelism with the back wall of the shuttle-box when engaged thereby.

My invention is not restricted to the precise construction and arrangement herein shown, as the same may be modified or altered in various details by those skilled in the art without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a loom, the lay, a shuttle-box thereon, a filling-detector movable across the raceway of the lay adjacent the mouth of the shuttle-box as the lay heats up, and means to clamp the filling between the filling-detector and the shuttle when the latter is boxed.

2. In a loom, the lay provided with a shuttle-box, a shuttle, a filling-detector to detect presence or absence of the filling when the shuttle is in the shuttle-box, and means supported independently of the lay to clamp the filling adjacent and independently of the shuttle on the detecting beat of the lay.

3. In a loom, the lay provided with a shuttle box, a shuttle, a fillingdetector, and means independent of the shuttle to clamp the filling adjacent the mouth of the shuttlebox when the shuttle is therein, and between the shuttle and filling-detector, on the forward beat of the lay, to maintain the filling taut when engaged by the filling-detector as the lay heats up.

4. In a loom, the lay provided with a shuttle-box, ashuttle, a filling-detector, and yieldingly-mounted means independent of the lay and the shuttle to act upon and maintain the filling taut when engaged by the filling-detector on the detecting beat of the lay.

5. In a loom, the lay provided with a shuttle box, a shuttle, a filling detector, and means to cooperate with the back wall of the shuttle-box adjacent the month of the latter and clamp the filling on the detecting beat of the lay, to present the filling taut to the filling-detector.

6. In a loom, the lay, a shuttle-box thereon, a filling-detector movable across the raceway of the lay adjacent the mouth of the shuttleboX as the lay heats up, a fixedly-mounted stand, and a yieldingly supported fillingclamp on the stand, to engage and hold the filling adjacent the mouth of the shuttle-box on the detecting beat of the lay.

7. In a loom, the lay, a shuttle-box thereon, a filling-detector movable across the raceway of the lay adjacent the mouth of the shuttlebox as the lay heats up, a fixed stand, a lon gitudinally movable, yieldingly controlled member mounted thereon transverse to the lay, and a non-metallic head on said memher, to engage the filling and clamp it between the head and the back wall of the shuttle-box on the detecting beat of the lay.

8. In a loom, the lay, a shuttle-box thereon, a filling-detector movable across the raceway of the lay adjacent the mouth of the shuttlebox as the lay heats up, a yieldingly controlled member longitudinally movable transversely to the lay, an adjustable head on the rear end of said member, and a yielding, n0n metallic cover for the head, to engage the fill-

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