US1664005A - A corpo - Google Patents

Description

March 27, 192s.

R. G. TURNER LOOM T0 TRANSFER ON BACKWARD STROKE OF THE LAY Filed 0010.28, 1925 5 Sheets-Sheet 1 R/cH/web G. Tue/v Mmrgz f77-To /vEYsi March 27, 1928. 1,664,005

R. G. TURNER LOOM TO lTRANSFER 0N BACKWARD STROKE OF THE LAY Filed ooms, 1925 5 sheets-sheet 2 .Z'NvE/vrale 7?/CHAPD G? '7l/ENE?? Mmh 27, 1928.

R. G. 'rURNER LOOM TO TRANSFER 0N BACKWARD STROKE 0F THE LAY Filed Oct.28, 1925v 5 Sheets-Sheet 3 qq l .Tn/VEN TOE:

)mH/WPD Gt TURNER:

March 27, 1928. 1,664,005

R. G. TURNER LOOK T0 TRANSFER 0N BACKWARD STROKE OF THE LAY Filed 00u28, 1925 Z65 Sheets-sheet 4 D i5 O 45 a 53 o (7 7 f .H 7o A fg yz ll i i j 5 o i# fd l il. il O 1 ol'nllllill 4 p/ O IINI l l@- F ,MQW

/VTTORNE Much 27, 192s. l 1,664,005

R. G. TURNIER LOOM TO TRANSFER ON BACKWARD STROKE 0F THE LAY Filed 0ct.28, 1925 5 Sheets-Sheet 5 sa- 5 I gain/25' f L?? s? figg/2.

if 171%? y *i* 2f I/v VEN To@ Patented Mar. 27, 1928.

UNITED s'rArEs PATENT oF/FICE.

RICHARD GREEN'LEAF TURNER, OF XVORCESTER, IVItSSCHllTSETTS.` ASSIGNOR T0 CROMPTON 8L KNOVLES LOOM WORKS, OF VORCESTER. MASSACHUSETTS, A CORFO- RATION OF MASSACHUSETTS.

LOOM TO TRANSFER ON BACKWARD STROKE O1 THE LAY.

Application filed October 28, 1925.

This invention relates to improvements in automatic wett replenishing looms and it is the general object of the invention to provide means for transferring weft into any one of a plurality of shuttles on the backward stroke of the lay without stopping any normally moving' part of the loom.

In certain types ot' looms which employ a plurality ot boxes n each end of the lay to accommodate a plurality ot shuttles the movement ot' the boxes to bring successivo shuttles into active position takes place while the lay is torward and it is a difficult. matter to trans'ter a bobbin into a shuttle when the lay is in this position. In such looms. however. there is always at least one idle .shuttle which is at rest with respect to the lay when the latter is in its rear position and l propose to make use of this tact by providing` mechanism which will introduce a fresh Supply of wett into an idle shuttlewhen the lay is in backward position.

ln so-called piek and pick looms where it is necessary to lay single picks it is found that the boxes at each end ot the loom are likel)` to move every pick and my invention relates more particularly to this style of loom.

lt is a further object o-'l my invention to provide a wett replenishing mechanism at each side ot' the loom. one to supply one color ot weft and the other to supply another color ot wett. the specific embodiment of my invention set forth herein being a two color loom wherein the shuttles change their position each pick ot the loom.

lt is a Jfurther object ot my invention to provide wett detectors in relatively fixed positions which will cooperate. with the shuttles on the backward stroke ot' the lay, so that neither the replenishing` nor the detecting is accomplished on the tront center ot' the lay as is usual with looms having a single box on at least one side ot the lay.

1t is a still further object of my invention to provide a transterrer receiving a regular motion on every fourth pick to cooperate with the detecting mechanism so that when the latter indicates a bobbin will move under the transtcrrer and be inserted in the in- Serial No. 65,438.

dicating shuttle the next time it is in proper position for transfer.

It is a still further object ot my invention to accomplish the transfer of the weft. and also the detecting, while the boxes are in one or another of their normal positions, no abnormal motion ot the boxes being' required to accomplish replenishment.

lVith these and other objects in view which will appear as the description proceeds. my inventionresides in the combination and arrangement ot parts hereinatter described and set forth in the claims.

In the accompanying drawings, wherein the invention is illustra-ted in connection with a two-shuttle loom having two boxes at each end thereof which receive regular moven'lents on every pick o'l` the loom,

Fig. 1 is a side elevation ot' a loom having my invention applied thereto showing a portion ot the lay in section,

Fig. Q is a front elevation o1 theloom shown in Fig. 1, Y

Fig. 3 is an enlarged rear elevation of the upper part oitl one end oli the loom showing the relation ot one ot the wett replenishing mechanisms and the detector connections Jfor the other weft replenishing mechanism.

Fig. 4 is an enlarged top plan looking in the direction oi arrow 4l. Fig. 1,l o p Fig. 5 is an enlarged side elevation of one of the wett replenishing mechanisms,

Fig. 6 is a vertical section on an enlarged scale. on line (i-#G of Fig'. 5,

Fig. 7 is an enlarged viewyof the detector and lay showing the latter on back center and the boxes in down position,

Fig. 8 is au enlarged section on line 8-8 ot Fig. 1,

Fig. 9 is a detail vertical section on line 3*9 ot Fig. 5,

Figs. 10, 11. 12 and 13 are diagrammatic views indicating the relative positions of the boxes and shuttles tor tour successive picks when the lay is on back center,

Fig. 14 is a` vertical transverse section on line 11i-14; ot Fig. 4, and l Fig. 15 is a vertical longitudinal section on line 15 15 ot Fig. 4. y

The loom set forth herein is provided with duplicate weft changing mechanisms on each side thereof, each mechanism having a wett detector, a magazine actuatingr device, a onecolor magazine which is under the joint control of the detector and actuatingl device, and a regularly moving transterrer arm. The vdetector oil? each mechanism is on one side oil the loom and the other devices are on the opposite side. Each end ot' the lay is provided with a pair of separated boxes so controlled that when the boxes at one side are down the boxes at the opposite side are up, the boxes receiving a motion every pick. TWhen the boxes are up the upper box is operatively positioned with respect to the associated magazine and when the boxes are down the lower box is in operative position with respect to the corresponding wett detector. The box controlling,r and weft changing mechanisms are identical yexcept t'or the settings ot' the operating cams and a description of one will suiiice for both.

Boa; motion.

Referring to the drawings it will be seen that I have provided a loom 2O having a lay 2l supported on lay swords 22 and rocked back and forth by means of connectors Each end of the lay is provided with box guides 24C which receive verticallyT moving boxes 25. By referring to Figs. l, 2, and 7 it will be seen that each end of the lay is provided with two boxes, the upper box 26 being spaced from the lower box 27 so as to aiTord anopening 28 through which an expelled bobbin. may pass.`

Each set of boxes is mounted on a box rod 29 operatively connected to a box lever 30 pivoted as at 3l to av lixed part ot the loom and having at the rear end thereof a roll 32 which is in contact with cam 33 secured to the bottom shaft The shaft 34 makes one revolution every two picks and each cam 33 has a low dwell 35 and a high dwell 36, the dwells being connected by inclined surfaces 37 by means ot which the lever 30 is moved from one to the other ot' its positions. The cams 33 are set oppositely to each,` other so that when the boxes on one end ot' the lay are going up those on the other end are going down, the movement of the boxes occurring when the lay is approximately in the forward half of its stroke.

By referring to Figs. 10 to 13 the positions the boxes assume on successive picks with the lay in rear position will be undertoocl. As seen in l() the lett hand boxes are down and a shuttle Sr is traveling from the upper of said boxes toward the lower right hand box, the right hand boxes being up and the upper right hand box being occupied by a shuttle Sg. As the lay moves forward the boxes will change to the position shown in Fig. 1l, shuttle Sg moving to the left and Shuttle S"` being in lower position. On the neefnoca next beat of the loom the boxes return to their starting positions (see Fig'. l2) but shuttle SI is now moving to the lett and shuttle is in lower position on the left hand side. On the fourth beat the boxes again change as seen in Fig. 13. shuttle Sg moving` to the right and shuttle S" being in lupper position. This the end of the repeat and the next moveinent oit the boxes returns them to the position shown in Fig. l() and the sequence will be repeated. lt will be noted that shuttle S" is in' an upper box on the left side only and that shuttle Si; is in an upper box on the right side only. Furthermore, it will be seen that when each shuttle is in a lower box it is on that side of the loom opposite to the side where it occu- -pies .an upper box. Also, it takes tour picks tor each shuttle to return to any given position.

The wett changing mechanisms to be described hereinafter depend tor their proper operation upon the sequence ot shuttles just described, the detecting mechanisms cooperating with the shuttles when they are up. I will now describe one oi the detecting.; mechanisms, namely, the one lo ated at the lett hand side ot the loom.

We# detecting '/Jzeo/ifmmt.

Reterring to Figs. l, fi, .7, and iii 'it will be seen that I have secured :iy stand i() to the frame 2O and have secured therein i'or vertical. adjustinenta post il the upper end et which. is threaded into the base 4t2 ot the detector D. Said base l2 has a slightly inclined guide 43 having a slot i-ltlierein to receive a detector slide is shown in Fig. 4 the slide has pivoted thereto as at 416e laterally swinging` teeler jaw fl? having,"` a roughened yarn. engaging surface and has secured thereto a yarn penetrating wedge 4:8

the small end of which projects slightly be` yond the jaw 4-7.

The i'eeler jaw has extending' lat: therefrom an arm 19, (see l*1 ie'. at) th ward face of which is eng: l rod 50 located in the siide rearwardly to receive a stop screw Jl. screw 5l normally enga-p; .-i the zguide il-ii aut serves to hold the jaw fifi a the wedde i8 when thc slide is held rorwardly in usual position. A. second rod extends through the slide and pressed against the rear face o'l arm 49 by a lover 5.53 second to rod 54 rotatable in i'ixed structure. sion spring 55 is interposed between a .fitted pint and an extension on lever 53 and serves to hold the said lever against rod 52. in order that springmay not more jaw ai? away from wedge 1.8 under normal conditions. l secure to the upper :tace ol' slide et? a clip 56, (See Fig. and pass tl'iercthrosurli a pin 57 adjustably mounted in cap held to the guide 43. A. compression spring lUU around pin 57 engages clip 56 `and holds the slide 45 yielding in forward position, maintaining engagement between screw 51 and guide 43 to hold the j aw and wedge as shown in 4.

Then suflicient yarn is present the slide and feeler jaw move .rearwardly without relative movement and push lever 53 rearwardly to give rod 54 a countercloclnvise motion as viewed in Fig. 7. lhen insufficient yarn is present to resist lateral movement of jaw 47, wedge 48 will engage the bobbin B and move the slide rearwardly, but as the aw is free, it will move to the side under action of rod 52 and the lever 53 will remain at rest. The detector is substantially the same in construction and operation as that shown in Patent No. 1,352,536. I will now describe the magazine actuating device at the opposite side of the loom.

Magazine actuating mechanism.

lVhen the rod 54 is not oscillated ou a detecting beat it is necessary to initiate replenishment. this being accomplished through the intern'iediary of the actuating mechanism A, (see Figs. 3, 5, and 6). As seen in Fig. 8 rod 54 has secured thereto an upstanding linger the upper end of which is connected to a controller pin 71 extending forwardly through aI stand 72 held in' fixed position, An actuator lever 7 3 has the left end freely movable in the stand but normally7 held above the controller' pin. Said lever 73 is floated intermediate its ends on a rod 74 connected at its lower end to one end of a cam lever 75 movable about a fixed center and having the other end in engagement with a cam 76 secured to a stub shaft 77 passing through a fixed bearing 78.A Secured to the other end of shaft 77 is a gear 79 which meshes with a second gear 80 having half as many teeth as gear 79 and secured to the bottom shaft 34. As the bottom shaft rotates once in two picks it will be seen that cam 70 receives a complete revolution once in four picks.

The cam 76 has a single projection 81 to give the floating or actuating lever 73 a downward motion every fourth pick when the shuttle corresponding thereto is in lower position and on the opposite side ofthe loom cooperating with its detector. The detector may therefore enter an empty box or it may remain below the boxes when they are raised wit-hout giving a false indication due to the four pick motion of the actuating lever.

If rod 54 is rocked on a detecting beat the controller pin will be withdrawn and level' 73 will descend without interruption, but should said rod remain at rest due to a depleted shuttle thocontroller pin will remain under the actuator lever and as the latter descends the left end as seen in Fig. 3 will remain up and the right end will be depressed to lower an actuating connector rod attached to lever 7 8. The actuating mechanism is similar to that shown in Patent No. 1,030,748, and it will be understood that the down motion of rod 82 sets the magazine for replenishment on the second subsequent pick. l will now proceed to a description of the magazine.

W e't magasine.

l employ two single color weft replenishing magazines, one on one side of the loom for one color and the other on the opposite side for a different color. The right and left hand magazines will be designated Mr' and M", respectively, and a description of magazine Me' will follow.

Referring to Figs. 2, 5, (i, and 9 it will be seen that the magazine comprises inner and outer plates and 91, respectively, between which extend the bobbins B to be transferred. The bobbins are arranged in a single vertical stack by means of guide flanges 92, (see Figs. 5 and 9) and are held in place by a slide cradle 93 formed of two parts 94 and 95 which are movable relatively to each other. Each part has an upper shelf 90 and a lower shelf 97, shelves 96 being normally in outer position and shelves 97 being in inner position to retain and support the bobbins. The parts have diagonal oppositely extending slots 98 through which extends pin 99 carried at. the bottom of a vertical slide 100 guided in boxes 101 on the frame 90. The lower end of the vertical slide is forked to receive the cradle parts 94 and and as the slide is raised the parts undergo opposite movements to cause the upper shelves to move inwardly under the next. to the bottom bobbin and to cause the lower shelves to move away from each other to release the bobbin normallyin the cradle.

The movementl of the slide is accomplished by a rock shaft 102 rotatably mounted on the plate 90 and having an arm 103 secured thereto and Connected to the connector' rod 82. As the latter is depressed at indication of weft exhaustion shaft 102 rocks and causes a finger 104 rigid with the rock shaft to raise slide by lifting lug 105 thereon. After projection 81 passes the lever 75 spring 100, which is connected lo slide 100 and a boss 101, will pull the slide 100 down and restore shaft 102 and rod 82 to normal position. The return of slide 100 will also restore the cradle to normal position and a fresh bobbin will fall therein.

Vhen the lowermost bobbin is released by the cradle it will fall on yielding supports 107 and will remain there until transferred two picks later. inasmuch as the sequence of the boxes is definite and it is known in advance that the boxes will rise to present the upper one operatively under the magazine two picks after an indication, the transferrer mechanism can be operated at regular intervals four picks apart and 'lf will new describe how this result is accomplished.

Tre/)infer mec/rollito.

Secured to and moving with stub shaft 'il' is a earn ll() (see Figs. l, Q, and tl) ha ving` a single projection lll to cotrperate with a transferrer Cani lever 112. Il. connector l'l'l attached to lever 112 is pivoted at the pper end thereof to a transi'errer arm. lll and causes the arm llaY Vto descend every fourth beat of the loom at a time when the boxes on that side of the loom are in raised position and when Vthey are at Vthe 1' 'ir end of the to and fro stroke of the l the arm llaL descends it will :nove the csh bol loin resting on the yieldingsupportv l?- into the shutle, the expelled hobbin paV 'ne' out through the opening 2S between the boites.

Snflmnery.

From the foreigoingl description it will be apparent that l have provided a lay having aty each end thereof a 1 hirality of bor-res each ofv which may assume an operative position with respect to the lay and that the trans fer of weft will take place into one of the bones while it is in a normal position, that is, it is not necessary to give the bones an abnormal motion in order to e'liiect lt is to be understood, as previously that l have provided duplicate i 't ing mechanisms, one for each of the shuttles and that both the detecting and the transferring operations are accon'iplia--ahed while the lay is in its backward position and that these operations talre place in connection with the shuttles which are idle. l believe l am the lirst to provide means for transferring into an idle shuttle on thel aclrward stroke of the lay, this being the only point in the cycle of a loom having hores on both ends where the shuttle momentarily at rest. The shuttles previously described are of opposite hands, the shuttle which is replenished by magazine Mg l'iavint;` the eye on the right hand end and the other shuttle having the eye on the left hand end.

Having thus described `my invention 'itwill be apparent that changes and modifications may be made therein by those skilled in the art without departine,l from the .spirit and scope of the invention, and l do not wish to he limited 'to the details herein disclosed but what l claim is:

l. In a. loom, a lay movable haclwardly and forwardly therein, shifting; shuttle boxes on the lay movable relatively .to the lay when the latter is in its forward posi tion and stationary with respect to the lay when the latter is in its rear position, said boxes accommodating a plurality of shuttles all but one of which are idle when the lay is in backward position, and. means to effect replenishment of weft into an idle naanoo@ shuttle while 'the lay is in its liaelrward position. l

.ln a loom, a lay movable bachwardly and forwardly and having a plurality of boxes to accommodate a plurality of shutties, said boxes being` niovaliile normally with respect to the lay when the latter is in its forward position and beingi stationary with respect to the lay when the latter is in its rearward position, and means 'to effect a chantre of filling in one of the shuttles in one of the boxes when the lay is in its rear position.

3. In a loom,V a lay movable bacluvardly and forwardly in the loom, shifting shuttle boxes carried by the lay and movable with respect to the lay when the latter is in its forward position and stationary with .respect to the lay when the latter is in its rearward position, and means to ell'ect weft rellenishment when the boxes and lay are in rearward position.

4t. ln a loom, a. lay movable. liiacltwardly and forwardly in the loom, a set of shifting shuttle boxes carried by the lay movable with respect to the lay when the latter is in its forward position and normally stationary with respect to the lay when the latter is in its rearV position, said boxes lieine; capable of assuming any one of a plurality of normally stationary positions with respect to the lay when the latter is .in its rerrwa rd position, and means to effect a change of lilling in one of the shiftingv boxes when the latter assumes one of the normally stationary positions it may have with respect to the vlay when the latter is in its rear position.

5. ln a loom, a lay moi'able baclrwinfdly and forwardly therein, a set of shifting;r shuttle boxes on. the lay movable with respeet to the lay when the latter is in its for ward position and at rest with respect to the lay when the latter is in its rearward position, a transfert-er mechanism movable in a lifted path, and means cooperating with the transferrer to elleet a change of weft when the lay is in its rearward position.

6. lin a loom, a lay movable baclnvardly and forwardly therein and havingv a plurality of shuttles all of which areinorable with respect to the lay when the latter is in its forward position and all of which with the exception of the active shuttle are at rest with respect to the lay when the latter is in rearward position, and means to effect a change of iilling` in one of the shuttles other than the active shuttle when the lay is in its rearward position.

7. ln a loom, a lay movable hacirwardly and forwardly therein and havingv a plurality of .shuttles all of which are movable with respect to the lay when the latter is in its forward position and at least one of which is idle when the lay is in its rearward position, and means to effect replenishment 1 lll of an idle shuttle when the lay is `in rearward position.

8. In a loom, a lay movable backwardly and forwardly therein, a set of shifting shuttle boxes on the lay movable with respect to the lay when the latter is in ferward position and at rest with respect to the lay when the latter is in rearward position, weit replenishing' mechanism operatively positioned with respect to one ot the boxes on a changing' beat of the loom when the lay in its backward position, and means to elieet replenishment when the lay is :in its rearward position and the replenishing mechanism is operatively positioned with said one of the boxes.

9. ln a loom, a lay having a regular cycle ot' movement as the loom operates, a set of shifting shuttle boxes and shuttles therefor, the boxes being' movable relatively to the lay during' a portion ot the cycle of the lay, one of the shuttles being in [light during another portion ot the cycle of the lay, and

another shuttle being at rest relatively to the lay during said other portion of the cycle when one shuttle is in flight, a magazine to hold a reserve supply of bobbins and means to etleet a transfer of a bobbin from the magazine to the shuttle at rest relatively to the lay while the lirst named shuttle is in Hight.

lO. In a loom, a lay having a regular cycle of movement every pick of the loom, a magazine having a reserve supply of weft earriers, a plu 'ality of shuttle boxes and shuttles, one o'l which is in flight during a portion ol the cycle et movement of the lay while another shuttle is at rest relatively to the lay when the first shuttle is in flight, and means to move a weft carrier from the magazine into the shuttle box corresponding to the shuttle which is at rest relatively to the lay while the first named shuttle is in flight.

In testimony whereof I have hereunto a'ffixed my signature.

RICHARD GREENLEAF TURNER.

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