US1700664A - Filling fork and stop motion for oriental rug looms - Google Patents

Description

Jan. 29, 1929. 1,700,664

M. A. BAUER FILLING FORK AND STOP MOTION FOR- ORIENTAL R UG LOOMS Filed M y 18, 1927 5 Sheets-Sheet 1 Jan. 29, 1929.

M. A. BAUER FILLING FORK AND STOP MOTION FOR ORIENTAL RUG LOOMS Filed May 18, 1927 s Sheets-Sheet 2 Q W I I i N F 9 .:':':.l:.':{ ,H I

e. 0- O M \o v 2% 6: Q 4

a I Q3 h J23 I N 1 N k, N

.J I I Y l F O I I I i w R Q 1 L w a b 1% M/ZZAFA. E0 148% a, M -7s Jan. 29, 1929; 1,700,664

M. A. BAUER v FILLING FORK AND STOP MOTION FOR ORIENTAL RUG LOOMS F le y 18, 1927' I -5 Sheets-Sheet 3 Jan. 29, 1929.-

M. A. BAUER FILLING FORK AND STOP MOTION FOR ORIENTAL RUG LOOMS 5 Sheets-Sheet 4 Jan. 29,1929.

M. A. BAUER FILLING FORK AND 'STOP MOTION FOR ORIENTAL RUG LOOMS Filed May 8, 7

5 Sheets-Sheet Patented Jan. 29, 1929.

names BAUER, 0F WORoEsTER, MASSACHUSETTS, ASSIGNORTb 'M. J. vvvmr'rnnr.

ASSOCIATES, A VO-LUNT ARY.ASSOCIATION' OF MASSACHUSETTS. j

E ma. EORK AND sror MOTION OR ORIENTAL RUG :L'oOMs.

Application filed May is,

This invention relates to a filling fork and stop'motion particularly designed for use on an'oriental rug loom of the general type shown in the Renard Patent No. 894,287. I

These looms operate by inserting and heating'up two successive picks of filling, after which the lay' and reed remain stationary while a row of yarn tufts-are inserted and knotted about the warp threads. After a full'row of tufts is inserted, two more picks of filling are inserted and beaten up.

It is one object of my invention to provide 7 a filling fork and stop motion for such a loom,

so constructed that the loom willbe promptly stopped in the absence offilling. Provision is also made for stopping the loom upon fail ure of the shuttle to box. I

' A further object is to provide'means for clamping and t'en'sioning the filling thread by Fig. 7 is the filling fork while it is being beaten up, and for momentarily relieving the tension as the lay moves backward after the beating in Of the second pick of filling, so that the filling will remain close to the fell of the cloth, per: mitting the yarntufts to be inserted in the required position.

Myinvention further relates to. arrangements and combinations of parts which will be hereinafter described. and more particularly pointed out in the appended claims- 7 A preferred form of theinvention is shown in the drawings, in which Fig. '1 is a front elevation of a portion of a loom having my improved stop motion applied therto;

Fig. 2 is an end elevation of the parts shown in Fig. 1, taken along the line 22 in Fig. 1..

Fig. 3 is a sectional end elevation, taken along the line 3-3 in Fig. 1;

Fig. 4 is a detail plan view of a portion of the lay andlfilling fork, looking in the direction of the arrow 4 in Fig. 3:

Fig. 5 is a sectional elevation, taken along the line 5-5 of Fig. 4; r

Fig. 6 is an end elevation of certain parts of the stopmotion with the lay shown insection; V

an end elevation, showing certain of the parts in F 21m difi'erentoperative position;

Fi 8 is a sectional plan View, taken sub stantially along the line 8 8 in Fig. 2, and

Figs. 9 to 13, inclusive, are detail plan 1927. Serial N0. 192,445.-

views, illustrating successive steps in the operatlon of thefilling fork and stop motion. v Referring to. the drawings, I have shown a loom comprising a frame 20 ,(Fig. 2) on which a lay 21 is mounted to oscillate in the usual manner. A filling fork 22 is provided at each end of the lay 21, as indicated in Fig. '9, said filhng forks being connected .tomove simultaneously and to operate together. A

slots 29, through which the rods or fingers i i 26 will pass freely if-no filling F isinterposed beneath the fork.

'description of the operationof one of the forks Wlll apply equally to the'o'peration of When the fillingis in its normal position, as

shown in Figs. 14 and 5, the fork will remain in the position indicated in Fig. '5 but will ex' ertsubstantial tension upon the filling F whlle it is beingbeatenup to the fellof the cloth C. 7 Each sliding plate 25 (Fig. 6) is connected at its lower end to a link 30, which in turn is pivoted .to the forwardly project ing end of'an arm 31 fixed onaarock shaft 32. A spring 33 is connected at its forward end to each link 30 and'at its rearend to a "pin 34 (Fig. 3)v fixedo'n the shaft32 or on the pivotally Ward dotted line position :shown in Fig. 3v to the rearward" full'line position as the lay moves back. V

- An arm 38 2) projects forward from the rock shaft 32 and rests upon abent lever 39 (Fig. 1 pivoted at 40.0nthel0om'frame' 20, having a stud 41 resting upon a collar 42 or fixed on an intermittently. rotating shaft 43.

The collar 42 is .providedwith a series of cam lugs 44, 45 and .46 which successively engage thestud '41, momentarily raising the lever 39 and the arm :38, andgrockin-g .ltheshaft 32, thus swinging the arms 31 and [raising the filling for s. 11ft will be [noted that the lug 46 is of less heightthan the lugs44. and

- 45 and that it consequently does not raise the filling fork as high as the other twolugs for a reason to be explained.

An arm 50 (Fig. 2) pro ects rearward from the rock shaft 32 and is pivotally connected at 51 to an upright rod 52 projecting freely through an opening in the rear end portion of a stop motion lever 53 pivoted at 54 on the 100m frame. A nut 55.is threaded on the rod 52 and forms an abutment to engage the lever 53 when the filling fork drops through i the slots29- in the lay upon absence of filling.

A stud 56 (Figs. 2 and 8) on the lever 53 extendsthrough a long segmental slot 57 in a-lever 58 which is pivoted at 59 on an arm 60 secured'to a shaft 61., A handle 62 projects forwardfrom the lever 58 and normally I counterbalancesthe rear portion of the lever 58 and also the forwardly projecting portion of the lever 53. Adjustable weights 68' (Fig.

2) may be provided on the rea-r'end of the lever 53 for the same purpose. r

The lever 58is provi. led at itsrear side with a lug or projection 65 (Fig. 8) adapted to be engaged by a shoulder 66 (Fig. 2) on a disc 67.mounted to rotate intermittently on a shaft 68.

[The upper end of the arm 60 is notched as indicated at.68 in Fig. 7 and normally engagesa studor roll 69"(Fig. 2) in the rear end of a lever 70 mounted on a fixed pivot 71.

" A spring 72 connected by-a link 78 to the lever 70 causes the roll 69 to befirmly seated in the notch 68.

Theshaftfil (Fig. 7) is provided with an arm 75 having a stud 7 6 positioned in a slot I 77 in a lever 7 8 mounted on a fixed pivot 79. --The lower end of the lever 7 8 is connected by i a link80 to a clutch lever 81 having a fork 82 engaging a yoke 88 in a clutch collar 84. So long as the filling extends under one or the other of the filling forks 22, the fork will beheld in such a position that the nut on the'rod 52 (Fig. 2)cannot engage the. lever 53 and depress the stud 56. If, however, the

filling is exhausted, the filling fork will descend to the position indicated in Fig. 6, de-

pressing the stud 56, correspondingly de-.

pressing the lever 58 so that the projection on the lever comes into the path of the shoulder 66 onthe'plate 67 and'is moved rearward thereby, thus shifting the stop motion parts from theposition shown in Fig.2 to the stopping position shown in Fig. 7, and with drawing'the clutch 84 from engagement with its driving member;

Itis. also desirable to stop the loom when the shuttle fails'to box, and for this purpose Ihave provided a bell crank 90 (Fig. 2) pivoted at 91 on a bracket 92 on the rear of the. lay

wardly projecting arm"9 l of thebell crank 90 is provided with a pin 95 resting on top and engaging the back binder 93. A forof the lever 58 previouslydescribed.

When the shuttle 1s properly boxed, the pin 95 is raised and inoperativebut if the shuttle fails to box, a spring 96 will draw the bell.

crank 90 forward, thus depressing the lever 58 and causing the stopping of the loom as previously described.

The operation of the parts during the-ordinary running of the loom is'best indicated in Figs. 9to 13. The position of the parts duringthe insertion of a row of pile tufts is as indicated in Fig.9, with the shuttle S in the left hand shuttle box. After the row of pile tufts is inserted, the shuttle is picked to the right hand position indicated in Fig. 10,'the filling. forks-being raised by the cam lug 44 (Fig. 1) just at the time the shuttle is picked.

of the forks falls upon the filling F, clamping it against the lay end plate 28 and applying tension thereto as the lay moves forward to and the e11- the position shown in Fig. 11.

The lay then moves rearward ing forks are momentarily raised by the cam lug .5 (Fig. 1) while the shuttle is sent to the left hand box, The filling forks are again released, tensioning the filling during the forward movement of the lay as previously-described.

It isnecessary, however, to prevent therelatively heavy filling fork from dragging the filling rearwardas the lay moves back andis about to come to rest, as it is essential that the filling remain beaten in closely against the .fell, of the cloth while the next row of pile tufts is being inserted. Accordingly, the third'cam projection 16. (Fig.- 1) raises the filling fork slightly, allowing the filling to slip forward under the fork as the lay moves The forks are immediately released and one i as indicated in Fig. 12. r

rearward from the position shown inFig. 12 to the position shown in Fig. 13'. In this manner sufficient slack is provided to prevent the shuttle by the knotting-in of the that I have: also arranged said stop motion so that it will tension the filling during the beat-up, and that I have particularly arranged to relieve the tension during the final movement of the lay to idle or inoperative position.

Having V the advantages thereof 1 do not wish to be limited to the details herein disclosed otherwise thanas set forth in the claims, but what I do claim is thus described my invention and i 1. In a loom having alternate operative I and inoperative periods for the shuttle, a pair 1 of filling forks, means to raise said forks to permit passage of the shuttle, said forks be- 105 pulling the filling away from the fell of the j I filling to tension said filling during the beat ing up thereof, and means to raise said forks .to momentarily release the tension on the.

filling as'the lay moves rearward just prior to its inoperative rest period.

' 2. In a loom having alternate operative and inoperative periods for the shuttle, a pair of filling forks, means to raise saidforks to permit passage of the shuttle for two successive picks, said forks being released and resting by gravity on the filling to tension-said filling during the beating 'up thereof, and means toraise said forks to momentarily release the tension on the filling as the lay moves rearward after the second pick of filling is beaten up and just prior to the inoperative rest period of the shuttle.

3. In a loomhaving alternate operative and inoperative periods for the shuttle, a pair of filling forks, means to raise said forks to permit passage of the shuttle for two successive picks, said forks being released and resting by gravity on the filling to tension said filling during the beating up'thereo'f, and means to raise said forks to momentarily release the a tension on the filling as the lay moves rearward after the second pick of filling is beaten up and just prior to the inoperative rest period of the shuttle, said fork-raising means thereupon becoming inoperative and releasing said forks to hold the filling during the h period of rest of the shuttle.

4. In a loom having alternate operative and inoperativeperiods for the shuttle, a pair of filling forks, means to raise said forks to permit passage of the shuttle, said forks being released and resting by gravity on the filling to tension said filling during the beating up thereof, and means to raise said forks to momentarily release the tension on the filling as the lay moves rearward just prior to the inoperative rest period of the shuttle, said combination, a filling fork movable vertically through slots in said lay and resting freely by gravity on the filling to tension said filling during the beating up thereof,and means to momentarily lift said filling fork to relieve the filling tension and immediately thereafter to rele'asesaid filling fork just. prior to the beginning of said period of rest, of saidlay.

freely by gravity on the filling to tension said 6. In a loom for weaving tufted fabric, alay, and a filling fork movable vertically filling during the beating up thereof, and

of during rearward movement of said lay and fork, said fork being then released to tion, a filling fork normally resting by gravity on the filling to tension the same, means to twice raise said fork substantially to permit flights of the shuttle, and means to raise said an oriental rug loom in which two 'means to raise said fork and momentarily release the filling for forward movement therer r forkslightly to allow the filling to slip relarearward movement of the shuttle, said latter means immedlately releasing said fork as such rearward movement is completed.

tively forward under said fork during final 1 8. In a loom, a stop motion including a lever having a shoulder thereon, a rotating ff 7 member having a lug effective to engage said shoulder and stop the. loom, said lever being normally inoperatively positioned with said shoulder out of the path of said lug, a filling fork, and means controlled thereby effective to be stopped.

9. The combination in aloom as setforth in claim 8, inwhich said lever has a long arcuate slot and 1n which said controlllng means 1ncludes an arm having a pin extending into said slot and thus positioning said lever.

10. The combination in a loom as set forth 7 MARIUSA. BAUER.

Images