Патент USA US2135155код для вставки
NOV. 1, 1938. R~ G_ TURNER 2,135,155 LOOM WITH SHUTTLE CHANGING AND LOOM STOPPING MECHANISM Original Filed March 6, 1935 - 6 Sheets-Sheet l Richard ,Greemeai Turner A‘Horney Nov. 1, 1938. R. G. TURNER 2,135,155 LOOM WITH SHUTTLE CHANGING AND LOOM STOPPING MECHANISM Original Filed March 6, 1935 6 Sheets-Sheet 2 Richard Greerúeaf Turner ATTORNEY Nov. l, 1938. 2,135,155 R. G. TURN ÉR LOOM WITH SHUTTLE CHANGING AND LOOM STOPPING MECHANISM Original Filed March 6, 1935 6 Sheets-Sheet 3 MI wr , @l _ë IN VEN TOR. Rich ard Greemen‘í Turner A TTORNEY Nov. l, 1938. 2,135,155 R. G. TURNER` LOOM WITH SHUTTLE CHANGING. AND LOOM STOPPING MECHANISM Original Filed March 6, 1935 6 Sheets-Sheet 4 ma) 155 ‘ INVEN TOR. Richard Greerúea? Turner BY î l ATTORNEY Nov. 1, 1938. 2,135,155 R. G. TURNER LOOM WITH SHUTTLE CHANGING AND LOOM STOPPING MEGHANISM Original Filed March 6. 1935 6 Sheets-Sheet 5 N@ÜN 1N VEN TOR. Richard Greenkeaî Turner BY a@ .fù wat A TTORNEY Nov. 1, 1938. R. G. TURNER ' 2,135,155 LOOM WITH SHUTTLE CHANGING AND LOOM STOPPING MEGHANISM original Filed March @[19:55 ' e sheets-sheet e F1514 Z BB INVENTOR. Rìçhard Gveemeaì Turner ATTORNEY Patented Nov. 1, _1938- > 2,135,155 l PATENTl >2,135,155 `WITH SHUTTLEA CHANGING AND sLOOM- STOPPlNG` MECHANISM Richard 'GQ Turner, Worcester, Mass., assignerI i to Crompton & Knowles Loom Works, Worces- _ . ter, Mass., a corporation of Massachusetts ’ `f_or'ignmi application Mai-ch s, 1935, serial No. 9,645. Divided and this application December t a ,"27, 1937, Serial 'Nor 181,754 A . . , i 12 Claims. ' ' This isa division of myco-pending application Serial No. 9,645 ñled March 6, 1935. . ’ This invention .relates to improvements in fancy or multishuttle box looms `and it ls the gen 6 eral object of the invention to provide such a loom which is capable of replacing 4certain, of the weaving shuttles when their'weft supplies are practically exhausted and to stop the loom when the weaving supplies of certain other of the shut 10 tles'are substantially exhausted. , In the Weaving of certain fabrics which cal for several kinds of weit it «frequently occurs that twocolors predominate while one or two other colors are used infrequently for decorative 15 purposes. _ In such a loom there is less need for automatic renewalof the running weft in the infrequently used yweaving shuttles than is the case with those shuttles which are in more fre quent action. My present invention provides an 20 eflicient and comparatively simple loom which changes a part only of the running shuttles auto matically and stops the loom when exhaustion approaches in the other shuttles, so that they may be replenished by hand. 25 ’ It ~is a further object of my present invention to provide a single weft detector on the magazine end of the loom to detect the condition of each running shuttle when at that end _of the loom. By such a feeler I am able to keep any shuttle 30 in action as long as desired and am not re stricted to any deñnite or limited sequence as is the case with certain multishuttle shuttle chang ing looms heretofore proposed. The detector gives the indication which initiates either shut 35 tle changing or loom stoppage, depending upon which of the several shuttles is empty. -It is a further object of my present invention to provide two'separate loom- controllers, one a 40 (ci. 13s-_232) It is a further object of my invention to pro vide a loom as already described wherein an in dication for a shuttle change can be stored and retained during and after a period Vin which the loom is stopped for hand replenishment of some of the shuttles. In this way a. very active shuttle carrying a white weft, for instance, can indicate exhaustion when at the magazine .end of the loom and then upon arriving at the drop box end of the loom be moved out of action by a control 10 exerted through the pattern mechanism, where upon an infrequently active shuttle comes into » action and acts through the detector to stop‘ the loom. Upon resumption of weaving the shuttle ñrst to indicate will ultimately become active 16 again and will be replaced by a similar reserve shuttle uponits arrival at the magazine end of the loom, the indication for such a change having been retained. ' When the weft feeler is on the magazine end it must be Withdrawn at the time of exchanging shuttles to prevent breakage and a repeated indi cation. Since certain of the shuttles in myim- , proved loom do notcoact with the shuttle chang ing mechanism but‘are replenished by hand the 25 feeler will not` be withdrawn in such instances and in order to prevent a continued ñow of cur rent through a detector circuit during loom stop page I arrange to box those shuttles which act to stop the loom on the side opposite the feeler 30 when the loom is stopped. In this way an ex hausted loom stopping shuttle- is out ofl contact with the feeler to prevent burning of the latter, _l and a repeated indication cannot be given. - It is another object of my present linvention to 35 employ the shuttle changing and loom stopping means `together with a warpl stop motion and so shuttle changer: and _the 'other loom stopping time the parts that when the loom is stopped be cause of approaching exhaustion ¿the shuttle mechanism,l both of which arev under control of needing replenishmentwill be at thev4 drop Lbox side of .the loom'whereas .when-ythe-.loom is` " a single weft detector, together with a part mov ing in timed relation with `the box motion which -controls the Yshiftingïc'r drop boxes. The shuttle stopped because ofr a warp fault it will .come on changing controller may‘in'clude selector mecha the intervening pickA or .beat` of .the yloom when the; active shuttle islonìthe opposite .or magazine ‘ a choice of changing operations, while the`v stop tell at a Íglance `whether rtheloom was stopped by 45 nism -for the ‘shuttle changing magazine to a'iïord ping controller will have but one _mode Aof opera tion,> with' the ¿sameir'esuln namely stopping whenever lthe less lfrequently vused vshuttles are 50 exhausted. `~ By this arrangementïthe single _weft detector initiates alli'of the 'changes'which‘are' to bring „about yan ‘alteration in loom operation' either ‘~ changing or stoppingQwhile the part mov 5.5. ing'in >timedt relation with'the box motion‘de-r termines which kindî ‘ci n alteration is to' occur. s side of the loom. _ Bythis relation the weaver can' weft` or warp fault.. a _ " ` ‘ " »Y 45, ' y ‘a been vproposed hereto-j. I am aware thatit has fore to u_sje" multiboxjlooms-_withvbobbinchanging attachments, but practical~ experience shows that> 50, such looms -are' vnot >entirely 'satisfactory in. the weaving ofî'certai? `fabrics„because „oi the fact> pick after transfer, and. also'jthe .thread end _ex-` tending `from the; outscmglfbohbm~1surea-io be» that the shuttle is not 'fullykthreaded onthe ñrst 2,185,155 drawn back into the shed to form a double pick. That part of my present invention which relates to renewal of the weft employs shuttle changing mechanism which places in action a shuttle which is fully threaded and completely removes front and back stacks of reserve shuttles I6 and. „ the trailing weft end with the old shuttle. oted to the magazine and operated by Aa rod 22 which extends down toward the lower part of the loom and has adjustably secured thereto a g Th’e warp stop motion is ordinarily capable of giving an indication of warp fault at any time including that period in the cycle of the loom 10 when the weft detector gives its indication. Where the loom stopping control for both the warp stop motion and the detector is exercised through asingle solenoid there is an opportunity for the warp stop motion to excite the solenoid A15 at the time the feeler is detecting on a full bob bin and a false indication for weft stopping might therefore result with the shuttle boxed in the shifting boxes. It is a further object of my in vention to prevent such improper stopping by .25 interrupting the circuit of the warp stop motion so that it cannot give an indication to the com mon controlling solenoid at the time the weft de tector is having its detecting action. » With these and other objects _in view which will appear as the description proceeds, my in vention resides in the combination and arrange ment of parts hereinafter described and set forth in the claims. In the accompanying drawings wherein a con venient embodiment of my invention is set forth, Fig. 1 shows the forward part of one end of the loom having my invention applied thereto, ’ Fig. 2 is a view of a part of the opposite end of the loom showing four shifting >shuttle boxes 35 together with the box motion, Fig. 3 is a plan taken in the direction of arrows 3---3, Fig. 2, with the parts in a diñerent position, ' Fig. 5- is a view on an enlarged scale of certain of the structure shown in the lower >part of Fig. 1, Figs. 6 and 7 are diagrammatic views showing the structure of Fig. 5 in different positions,l Fig. 8`is a transverse section on line 6_6, Fig. 45 5 on an enlarged scale, ' Fig. 9 is a diagrammatic view of the electric circuits, _ _ ' Fig. 10 is a transverse section trough the lower interior part of the loom, 50 hook 23. Fig. 11 is a plan view in the direction of arrow Il, Fig. 10, - Fig. 12 is a horizontal detailed section on line I2-I2 of Fig. 10, Fig. 13> is an enlarged vertical section on line 55 I3-I3 of Fig. 5,. „ Fig. 14 is a plan view of the parts shown in Fig. 13 taken in the direction of arrow I4, and Fig. 15 is a detailed horizontal section on line I 5-_I 5 of Fig. 5. ß In the drawings I have shown several known mechanisms which cooperate with themselves and other new parts to carry my invention into eiïect. These known parts comprise the multishuttle magazine, the shuttle changing boxes and their 65 lifter motion, selector means to determine which type of reserve shuttle is to replace-theV empty ' The back stack of shuttles rests on a floor 24 10 and a plunger 25 is arranged to move the bottom rear shuttle >forwardly into the compartment C located under the bottom front reserve shuttle. This plunger 25 is moved by a lever 26 operative ly connected to a second downwardly extending rod 21 having a hook 28. A spring 29 may be used to return the plunger to its rear position. The magazine may have other parts not shown here in but set forth more specifically in my United States Patents Nos. 2,054,171 and 2,054,172. It is sufficient for the purposes of the present inven tion to statethat if rod 22 be depressed by mech anism to be described a front reserve shuttle will be released to fall into the space C and that when rod 21 is depressed the bottom rear reserve shuttle is moved forwardly into the compartment. Any shuttle arriving in the compartment is ready to be moved to the lay and into action. ' 'I'he means for actuating the rods 22 and 21 may comprise a changing box lever 30 having a lifting ledge 3| and pivoted abouta fixed stud 32. lI‘he forward end of this lever 30 is connected by means of a two-part yielding link 33 to an up wardly extending box rod 34 to support upper Weaving box 35 normally in active position and lower auxiliary-box 36 belowl the race and un occupied. Fig. 4 is a view similar to a portion of Fig. 2 40 I1, respectively. The front stack of shuttles is supported in' part by a lever I8 having a finger I9 to pass under the bottom front shuttle. A link 20 connects lever I8 with a second lever 2| piv l y ` ` A lifting lever 3_1 is also pivoted to stud 32 and is rocked by means of cam 42 -so that the forward end thereof moves upwardly every sec 40 ond beat of the loom shortly after the active shuttle is boxed on the shifting shuttle box side of the loom. A dagger v38 is movably mounted on the lifter- lever 31 and normally clears the ledge 3| when rising, but is movable under ledge 45 3I by either of two trips r39 and 40, see Fig. 5, so as to raise lever 30. The rear end of lever 30 is provided _with a lugA 4I which moves down whenever the latjch 38 raises the forward end of lever 30 and this lug has engagement with one 50 or the other of the hooks already described. The .selecting mechanism for determining which of the hooks is to become operatively re lated with the stud 4I comprises a selector lever 43 pivoted as at 44 to a bracket 45 secured to 55 the stud 32 in fixed position. 'I'he upper end of this lever is arranged to. guide the hooks so that the same move backand forth with thev rocking of the lever 43. When the lower arm 46 of lever 43 is pulled >to therleft by a. cable 41 moved by the shifting boxesthe forward hook 28 is under the stud-4*,I'ghbut when the cord or cable 41 is slack enedair coil spring "482. attached to the lever 43 rocks the latter so that- thel hook 23 moves for . wardly and'under tlieïstud 4I. ' Rocking 'of the lever. >43> is operative through shuttle, weft detector mechanism, loom stopping' a rod 49 to move a slide‘50 on aguide rod 5I to mechanism, and box motion parts together with a vary the position of the trips 39 and 40 so that four-cell gang of shifting shuttle boxes at the 70 side of the loom opposite the magazine. These` parts. will be described after which the manner in which they are associated with my present in vention will be set forth. ' Referring to the drawings, the loom frame I5 75 supports a reserve shuttle magazine M having but one of them can be positioned at a time to throw the latch 38 toward the ledge 3|. A sole 70 noid 52 is mounted on lever 30 and has a core 53 connected to a ro'cking trip 54 movable in a vertical plane ñxed with respect to lever 30. The parts are shown more'clearly in Fig.~ 13, where the hub 55 of a carrier 5I! is shown as mounted 75 3 2,135,155 for sliding movement on rods 8| carried by lever 30,. 'I‘he carrier supports the latches 39 and 40 and when moved by rod I9 places one or the other of the latches in vertical alignment with 5 the trip. 'I‘he solenoid acts to rock the latches softhat the lower end of the latter will swing from the normal inactive position at the right over toward the edge to direct dog 39 into lifting relation with the lever 30. The carrier .50 isnot 10 limited to the two positions corresponding to the ` two stacks of reserve shuttles in the magazine, but is capable of additional sliding motion for a " purpose to be described. ` The detector mechanism in this instance is illustrated as a double prong electric feeler D, see Fig. 1, fastened to a lever 60 and pivoted as at 6| to a bracket 62 secured to and extending forwardly from the magazine frame. Lever 60 1 and 10 where it will be seen that the usual form of shipper handle 90 on shipper shaft 9| has the lower end thereof connected with aknock-ofl’ rod The latter is attached to -the upper end of an arm 93 pivoted as at 94 to a knock-off housing 95. A rocking actuator arm 96 is moved by a cam 81 on bottom shaft 81 to have a risingand falling motion on alternate beats of the Aloom to give a ñnger 98 thereof >first a working and then a non-working stroke. Arm 96 may move about 10 a pivot' 99 also carried by the housing 95. , A solenoid |00 located in the housing has a core |0| which4 is normallyA down and opera tively- connected to a transmitting link |02 piv oted as at |03 to the arm 93 and having the 15 left end thereof normally below the path of the iinger _98 when the latter has a working stroke. Upon energization ofthe solenoid the core is has a finger 63 which is connected to a tension raised to lift th‘e link |02 so that the same lies spring 64 operative normally to hold the detector in the path of the finger 98, and as cam 91 20 gives the arm 06 a working stroke, the link in rearward detecting position with a stopv screw 65 adjustable to determine the correctA position of the prongs 66 and 61 of the detector. v The prongs 66 and 61« are normally so placed is given a longitudinal motion to rock arm 93 forwardly and act through rod 92 to move the shipper handle rearwardly or to the right in forwardly with the active shuttle on the magazine the position shown in Fig. 1 to stop the loom. 25 'I'he mechanism for stopping the loom just de scribed may be similar to that shown in patent side of the loom in box 35. to Payne No. 1,873,465. that they enter the active shuttle which is in the upper box on alternate beats as the lay L moves The detectors may if desired move through- a binder 69 mounted on » 30. the lay and not sharing the vertical motion of - ' An upright lever |05 pivoted to the loom- frame carries a rod |06 which extends rearwardly to 30 the boxes. - The object in mounting the detector have connection withr a spring |01 that nor on a movable support is to permit the same to be moved forwardly at the time of shuttle change so that it will clear the incoming and outgoing mally acts to hold said lever |05 rearwardly. A clipl|08 adjustably mounted on the rod |06 is connected by means of a spring |09 to the stem ||0 of a switch ||| to be closed when 85 the shipper handle is in vdriving position but shuttles.v At the opposite end of the loom provision is made for accommodating a series of weaving shuttles, four being set forth „herein of which but one only will be active at a time. These cells are shown at 10, 1 I, 12 and 13 and accommodate shuttles CS' CS2, SS' and‘SS’, respectively. As contemplated at present each of these weaving shuttles will return tothe same cell at the shift ing shuttle box side of the loom and will ordi 5 narily enter the upper cell 35 at the opposite side open when the shipper handle is in stopping posi A tion. Reference to Fig. 11 shows that the arm 96 is forked at its rear end, fork |16 cooperating 40 with the cam |15. The latter is adjustable angularly on the bottom shaft so that the loom can be stopped with the lay about in pro tection position when the active shuttle is on the magazine side of the loom or in box 35. 45 except on shuttle changing beats of the loom. The several mechanisms just described of These cells are mounted on a rod 15 which is themselves form no part of my invention and connected as indicated in Fig. 2 to the lower end of a link 16 in any approved manner. 'I‘he latter may be operated andconstructed in the usual manner. g . ' - r. y box lifter lever 1'|- pivoted as at 18 to an arm'19 movable about a ñxed stud 80. Stud 18 there--v fore constitutes a floating pivot for the lever 11 As previously stated my present invention re 50 lates to means for replacing either of two of the weaving shuttles when vexhausted and stop ping the loom when one or "the other of the two and by combining various movements of lever remaining shuttles- is depleted. nu' is adjustably connected to the forward end of a. 55 11 and arm 19 the llnk'16 is given four diiferent positions. Any well-known means may be used to _ac complish this result, but I have shown herein a pair of links 8| and 82 which are connected at 60 their upper ends, respectively, to lever -11 and arm 19. ` These links are connected at their lower ends to cranks 83 and 84, respectively, which move about stub shafts 85 and 86, respectively. 'I'hese latter shafts are movable independently of each other by a force derived from the bottom The controls to determine whether the shuttle changing 55 mechanism or the loom stopping mechanism shall operate are exercised primarily by the pat tern mechanism acting in the present- instance through the box motion. ` By referring to Figs. 2, 3 andf4, the box mo 60 tion shown therein is capable of.giving four po sitions to the shifting shuttle boxes which are determined by the positions of links 8| and 82. Shuttles CS’ and CS2 are those which are shaft 81 and they are controlled as to the time to be changed or replaced by fresh shuttles, while shuttles SS’ and SS2 eiîect loom stoppage. of their operation by pattern mechanism not Whenever box 10 or 1| is opposite the race the se shown and also sliding teeth on mutilated gears. rear link 8| will be in high position, link 82 `For further details of the box motion reference _ being down when box 10 is in'picking position 70 may be had to patent to Lundgren No. 1,679,616. and up when box 1| is in picking position. When 70 By relations which `are well understood the up boxes 12 or 13 are to be aligned with the race the ' >and. down motions of the two links 8| and 82 can . link 8| will be down as shown in Fig. 4, and link 75 be combined to give the shifting shuttle boxes any 82 will also be down when box 12- is active and up Ione of four positions. . as shown in Fig. 4 when the lowest cell or box 13 '- ‘ The loom stopping mechanism is shown in Figs. is in picking position. A simple control can be 75 4 2,185,155 pressing ñnger holds the‘latter yieldingly in rear exercised because of the fact that link 8| is in one position whenever the upper two boxes are active and down when either of the lower two boxes is active. » position to cause seating of hook 28 against the _ rear of. slot |34. The connections are such that when either of the upper two shuttle boxes is active the hooks will move back and forth as previously described ~The cable 41 which rocks the lever 43, see Fig. 1, extends from the shuttle changing to the shift ing shuttle box side of the loom and is led up wardly as shown in Fig. `2 to have adjustable con nection with a positioning lever -|20. This lever so that one or the other of them will be in op A- disabling lever |24 has a forward arm pro lever 43, holding the'hook 28 against the pin 4|. erative relation with respect to the stud 4|, but when the lever 43 is given its additional motion has a rear arm |2| with a roll |22 to be held due tothe activity of either shuttle SS’ or SS“, against a rotatable cam |23 moving with the the lever 43 will rock from the position shown 10 crank 84 by 4means of spring 48 acting through> in Fig. 6 tothat shown in Fig. 'l and the yielding lever 43. ` 15 vided with a rollk |25 to coact with a cam |25. secured to arm |2|. Lever |24 also has an ec centric follower |21 to be guided in angular ad justed position to coact with a second rotatable ' cam |28 moving with crank arm 83. Cam |23 20 has a high dwell |29 and `a low dwell |30, while cam |28 has a high dwell |3| and a low dwell |32. Followe;` |21 can be adjusted to vary the position of lever |24 by means of nut |21a. on screw |21b 25 carried by the disabling lever, see Fig. 3. y`When either of the upper two cells is to be active the link 8| will be raised and the cam |28 given such a position that roll |21 is on its low dwell, thereby permitting roll |25 to move away from the cam |26 by gravity. In this position 30 therefore roll, |22 and the positioning lever can respond to lcam |23, being on the low dwell |30 when the boxesare in their lowest position and on the'high dwell |29 when shuttle box 1| is in pick ing position. With link 8| raised therefore the lever 43 can have the same character of select ing motions as have been heretofore described in my United States Patent No. 2,054,171 and 2,054,173. ~ ~ From the description it will be seen that when 40 ever the shifting is conñned to boxes 10 or 1| the carrier 56 will slide to place one or the other of the latches 39 or 40 under the trip 54 and the loom will operate as a two-color shuttle chang ing loom, the shuttle changing mechanism being 45 in timed relation with the active shuttle CS’ or CS2, as the case may be. _ When either of the lower shuttle boxes 12 and 13 is to be active, however, link 8| is down in the position -shown in Fig. 4 and cam |28 takes such 50 a> position as a result of the reversal of crank arm 83 asto place follower |21 on the high dwell |3I.- 'I'his causes >roll |25 to push cam |26 and the positioning lever to the third or neutral po finger |35 ywill move' forwardly relatively to the ' In this way the hooks are able to-accommodate the third position of the lever 43. As will be apparent fromFigs. 2 and 4 the positioning lever |20 maintains its third position due to the fact that link 8| is down and roll |22 is away from cam |23. 'I'he link 82 can there fore rise and fall to render either of the lower pair of shuttles active without disturbing the position of the disabling or positioning levers. The control circuit has two branches, one of which goes to the shuttle changing solenoid 52, and the other of which goes to the stopping sole noid |00. In order to determine which branch cf the circuits and therefore which of the sole noids 52 or |00 shall be energized I provide a controller positioned by lever 43. 'I'his controller comprises a box |40 carried by the fixed bracket 45 and having pivoted thereto as at |4| two circuit closing arms |42 and |43 carrying rolls |44 and |45, respectively, to con tact with rocking camsl |48 and |41, respectively. Each cam has a high dwell |48 and a low dwell |49, but the dwells are staggered as shown in Fig. 5 so that when 'a high' dwellof one cam is elevating its corresponding roll the low dwell of the other cam permits its roll to assume low position. The two cams are rigid with a depend ing arm |50 connected by an adjustable rod |5| to the rocking `control lever 43. The con nection between rod |5| and the lever may in clude stud |52 adjustable along a slot .|53 in 45 lever 43. By means of this adjustment 'the proper throw of the cams |46 and |41 may be derived from the lever 43. As seen in Fig. 8 the arm |42 carries Va con tact screw |54 while the other lever | 43 carries a similar contact screw |55. These contacts are connected to wires |56 and' |51. respectively, and are each adapted for engagement with' a contact sition shown in Fig. 4. This additional move plate |58 insulated from and supported by the ment of the positioninglever gives an increased 55 motion to cable 41 and a corresponding shift housing |40. A wire |59 is connected to the contact plate |58 and depending upon the posi to the' lever 43. The hooks 23 and 28 will occupy one of two tion of arm |50 one or the other of the contacts positions when either of the upper pair of shut - |54 and |55 will be in electrical engagement with the plate |58. "The relation of the parts is such, 60 tle boxes is in picking position and these hooks however, that but one contact can be made with together- with the control lever 43 will under the plate |58 at a time.y ' ' those conditions operate as in my aforesaid Pat When the parts are in the shown in ent No. 2,054,173. When the lever 43 is given Fig. 6 and the loom is set to position exchange one or its additional motion incident to the activity of the other of the shuttles CS’ or CS2 contact |55 65 shuttle SS' or SS2 provision must be madey to will be elevated by cam |41 while ,contact |54 prevent damage to the hook. This result I ac complish by means illustrated in Figs. 5, 6 and 7. will be down and touch plate |58. The dweil |48 of the cam |41 is suflicient to maintain this po Hook 23 will ordinarily pass through'a hole |33 sition whether box 10 or 1| is in picking position. in the lever 43, see Fig. 15, and will therefore be When either of the shuttles SS' or SS»2 is in 70 vpositively positioned by the latter when said lever action the parts will take the position shown in ‘ rocks in either direction. Hook 28, on the other Fig. 7, where it will be seen that contact | 54 is 70 hand, lies in a 4slot |34 which is open at the iront raised by cam |46 and contact |55 is down on end thereof to receive a pressing ñnger |35. The plate |58. It will be seen thereforcthat the box latter is pivoted at |38 to lever 43 and a tension motion shown in Fig. 2 not only selects which of 75 spring'l31 interposedbetween lever 43 and the two shuttles CS’ or CS2 shall be replaced by 75 5 2,185,155 reserve shuttles, but also determines whether. electrical connection between the bars |85 and wire |56 and |51 shall be connected to platek |58. |86. For a further understanding of the struc It is customary in those types of looms which vture and operation of the warp stop motion refer are supplied with shuttle changing mechanisms ence may be had to prior patent to Payne No. to employ an electrical warp stop motion. As 1,852,024. The operation of the several parts may be un already stated a warp stop motion is ordinarily always capable of giving its indication and might derstood from the diagrammatic layout o1' the therefore excite solenoid | 00 at the instant of various circuits shown in Fig. 9. It will be un contact between the detector and a full shuttle derstood that the pattern mechanism not shown it) should a warp thread break at that time. ' There would result a misindication, which I prevent by interrupting the warp stop motion circuit pe riodically and during the interval that the weft detector is in contact with the weft supply being 15 controls the box motion so that one or another 10 of the shuttle boxes may be opposite the race on the lay L. Assuming that either of the shut tles CS' or CS2 is active, the contact |54 will rest on contact plate |58 and current will flow through the following circuit when uncovered . Referring to Fig. 10, I have shown the loom . ferrule F of a bobbin B in the active shuttle is detected. frame I5 as provided with a bracket |60 on the upper end of which is located a housing |6| sup~ porting two insulated spaced contacts |62 and 20 |63. These contacts may be of resilient mate-~ presented to the detector: ground, wire |82, the detector prong 61, ferrule F, prong 66, wire |59, plate |58,'contact |54, (contact |55 being raised), w'ire |56, shuttle changing solenoid 52, Wire |80, 20 rial and are mounted as set forth particularly in Fig. 12 to be in vertical alignment with a con-y binding post |90 of the switch |I|, closure |89 of the switch, binding post |91 of the switch, tact closer |64. The closer is vertically adjust wire |83, source of electric power P, and wire able on a block |65 sliding between the blocks |86 25 of insulating material on which the contacts |62 and |63 are mounted. The block> derives its vertical reciprocating motion from a lever |61 pivoted as at |68 to the bracket |60 and having a roll |69 .which contacts with a cam or eccen 30 tric |10 on the bottom shaft 81. It is to be understood that in the normal o-p eration of the loom the active shuttle will be on the magazine side every other beat of the>` lay, and since the bottom shaft has a complete revolu 35 tion every other beat of the lay, the cam or eccentric |10 will act to raise lever |61 once r`for every alternate non-detecting beat of the lay and will act to lower the block |65 on the intervening detecting beats of the lay. The low point of the |84 to the ground. Current flowing in this cir cuit will energize the solenoid 52 to throw the 25 latch 39 or `40 corresponding-to the indicating shuttle preparatory to an operation of the shut» tle changing mechanism.` So long as either of shuttles CS' or CS2 is in action the contact |54 will be on plate |58 and if either of these shuttles 30 should present a depleted bobbin to the detector the circuit just traced will be closed and an in dication will be given through the selector mech anism shown in Figs. 13 and 14. The slide of the selector which is positioned by the rod 49 will 435 be either in the dotted or full line position shown in Fig. 14 when the circuit alreadytraced is closed. 'I'he relative positionv of the several parts associated -with lever 43 will be in the po 40 cam or eccentric |10 is so set as to" eifect loweringl sition shown in Fig. 6, where the showing in full 40 lines `is for shuttle CS2 and in dotted lines for the feeler is in contact with the active shuttle and the latter is on the magazine side of the loom. At other times the contact closer |64 is 45 raised to complete a circuit between wires |1| shuttle CS'. of block |65 during thedetecting interval when ' . When the pattern- mechanism calls for a change so that one of the shuttles SS’ or SS’. is to b^e active there will be a reversal ofthe con-` 45 -and |12 which are connected, respectively, to the tacts contained in the box |40 and upon presenta contacts |62 and |63. VA >pin and slot connectionl tionl of an exhausted shuttle to the detector the designated generally at |13 may be employed to - following circuit> will be closed: ground, wire |82, , eifect reciprocation of the block |65 as the lever the weft detector, wire |59, plate |58, contact |61 rises and falls. ' A ' . The bottom shaft 81 has secured thereto a cam |15 which isipositioned for cooperation with a fork |16 formed integral with the arm 96. The latter may therefore be raised either by cam 91 55 for the normal warp stop operation of the loom, or by cam |15 at a different point in the cycle of loomI operations and responsive to the weft de tector. Asseen in Fig. 10 the high points of >these two cams are separated by a considerable 60 angle and it is for this reason that the rod 92 |55, (contact |54 now being up), wire |51, sole- . noid |00 of the knock-off device, wire |8I, switch | | I,? wire |83,> source of electric power P, and wire |84 back to the groundf Current flowing in this circuit does not energize the yshuttle chang ing solenoid Ibut does excite the solenoid |00 which -controls the link |02. At a later timein 55 the operation ofthe loom this link will be actu-l ated as already described to stop the loom with the shuttle on> the drop box side. During the clo sure of the second circuit the parts will be in can be acted upon to stop the loom by a warp the position shown in Fig. '7, and the carrier will ~ 60 fault with the lshuttle onthe magazine side of be in the dot and dash position of Fig. 14, the the loom or by a- weft~ indication through cam |15 when the depleted shuttle SS’ or SS2 is on structure being modified to permit the extra mo tion where the latches are out of possible engag the shifting shuttle box- side of the loom. The warp stop motion isj not shown structurally in the drawings but the essentiall parts thereof ing position with the dog 38. ` . It -is to be understood that at the time the de tector can close either of the two preceding cir are indicated dîagramrnatically in Fig. 9, where cuits,`the circuit closure |64 willl be Vspaced from it will be seen that a contact electrode |85 is 70 inclosed by but insulated from a second contact electrode |86. The latter is connected by wire the contacts |62 and |63, and operation of the |81 to the ground and both contacts extend warp stop control will be temporarily prevented. 70 If a warp fault should occur at anytime when the contacts. |62 and |63 are connected, that is, through a slot in the upper part of a drop wire at some time other than the detecting interval, |88 which is Anormally held elevated by the warp the following circuit will be closed: ground, wire |81, bar |86, drop Wire |88, bar |65, wire |1I, con 75 W. Upon warp fault the drop Wire falls to eñ'ect 65 6 2,185,155 tact |62, circuit closure I“, contact |83, wire |12, solenoid |00 of the knock-oi! device, wire out loss of the indication, the return of the in dicating shuttle to action immediately eñecting a' shuttle changing operation of the magazine with out the necessity of a repeated indication.' When |8i, switch |||, wire |83, source of electric power P, and wire |84 back'to the ground. Current flowing in this circuit will set the knock-.off de A the shuttles SS’ or SS2 become active the latches vice to stop the loom with the active shuttle on are moved o_ut oi' register with the dog so that the magazine side of theloom. had either latch been set by one of the shuttles It is to be understood that switch ||| is in the CS' or CS2 no premature indication of the mag position shownl in Fig. 9 so long as the loom is ‘ azine could result. 10 running but when the shipper handle moves to Having thus described my invention it will be 10 stopping position spring |01 acts to permit open seen that changes and modifications may be ing of switch ||| so that whether the loom be made therein by those skilled in the art without stopped by the warp stop motion or the detector, departing from the spirit and scope of the-in current will not ‘flow through their respective vention and I do not wish" to be limited to the de 15 circuits after the loom has come to rest. tails herein- disclosed, but what I claim is: From the foregoing it will be seen that I have 1. In a loom having a plurality of shifting provided a loom operating with a plurality of shuttle boxes, a box motion to move any one of shuttles certain of which are replaced by a shut the boxes to active position, a multi-color shut tle changing mechanism and others of which tle changing mechanism, a cam movable by the 20 eñect loom stoppage upon depletion and that a box motion, a lselector for the shuttle changer 20 single detector cooperates with all the weaving controlled by the cam when certain of the shut shuttles. It will further be seen that provision tle boxes are active, and a second cam movable is made for stopping the loom with an active de by the box motion to interrupt control between pleted shuttle in the shifting shuttle boxes, there the first cam and the selector when certain other by giving the weaver a visual indication as to the cause of loom stoppage. It will also be seen that I have provided a warp stop motion effec tive to stop the loom upon warp fault when the active shuttle is on the magazine side of the 30 loom. In this connection it should be noted that three conditions exist in the loom, namely, a depleted weaving shuttle of one group will ef fect stopping of the loom upon arrival at the shifting shuttle boxes, a depleted shuttle of an other group will be replaced at the magazine side while the loom continues to run, and the loom will come to rest with an active shuttle on the magazine side upon occurrence of a warp fault. Furthermore, it will be noted that the warp stop 40 motion is so controlled that it cannot act through the knock-off device during the weft detecting interval, provision thereby being made to prevent the warp stop motion from effecting loom stop page should eitherof shuttles SS’ or SS2 present a full supply of weft to the detector. Another feature of the invention is the provision of means actuated through a pattern mechanism controlled device, such as a box motion, to deter mine which of two circuits can be closed by the 50 ' weft detector to effect either shuttle replacement or loom stoppage. The hooks which coact with the shuttle changing mechanism are modiñed with respect to their previous arrangement so as to permit movement of the control parts to a 55 third or neutral position when either shuttle SS' or SS2 is active. The cams 91 and |15 are so disposed angularly with respect to the bottom shaft 81 that they give the knock-off device two working strokes for each two pick cycle of the 60 loom, one cam to assist stoppage effected by the weft detector and the other acting in conjunc tion with the warp stop motion. Furthermore, the selector mechanism for the shuttle changer shown more particularly in‘Figs. 12 and 14 has 65 provision for no additional motion beyond that heretofore employed to permit the latches to move out of possible operative relation with re of the shuttle boxes are active. 25 2. In a loom having a plurality of shuttle boxes, a lever connected to said shuttle boxes, a pair of actuators for the‘lever, a cam moving with each actuator, a multicolor shuttle changing mecha nism, a selector for the shuttle- changing mech 30 anism controlled by one of said cams and mov able thereby to any one of a plurality of posi tions less than the number of shuttle boxes when certain of said shuttle boxes are active, and means `actuated by the other cam to move said 35 selector out of control of the ñrst cam when certain other of the shuttle boxes are active. 3. In a loomhaving a plurality of sluiting shut tle boxes, a multi-color shuttle changing mecha nism, a pair of actuators for the box lever, a cam 40 moving with each actuator, each cam having a high and a low dwell, a selector for the shuttle changing mechanism controlled by one of said cams when the shuttle boxes controlled by the corresponding actuator are active, and means op 45 erated by the other cam to move the selector out of control of the first cam when other of the shut tle boxes are active. 4. In a loom having a plurality of shifting shuttle boxes, a box motion including a lever ca 50 pable of moving any box to active position, a pair of independently movable actuators for the lever, movement of the lever by one of the actuators rendering certain of the shuttle boxes active and movement of the lever by the other actuator mak 55 ing certain other of the shuttle boxes active, a cam connected to each actuator and moving therewith, a multicolor shuttle changing mecha nism, a selector for the shuttle changing mecha nism controlled by one of the cams when the ac 60 tuator corresponding thereto moves the lever to position certain of the shuttle boxes actively, and means moved by the other cam when the other actuator corersponding thereto moves the lever to render certain other of the shuttle bo'xes ac 65 tive, said means moving the selector out of con trol of the first cam. ` spect to the dog which causes rising of the shut 5. In a loom having a plurality of shifting shut tle changing boxes at the magazine end of the tle boxes, a box lever connected to the shuttle boxes capable of moving any shuttle box to ac 70 70 loom. In connection with the selector mecha `nism it should be noted that either of shuttles -tive position, a pair of actuators movable inde CS' or CS2 can give an indication of weft ex pendently of each other and each capable of haustion while on the magazine side of the loom and then become inactive for a period during 75 which either of shuttles SS’ or SS2 is active with causing motion of the lever, one of said actuators capable of moving the lever to two different po sitions, and the other actuator capable of mov - 2,135,155 ing the lever to two other positions, a cam con nected to and moving with each actuator, a mul said elements movable from non-indicating to ticolor shuttle changing mechanism, a selector for the shuttle changing mechanism controlled by one actuator to the selector mechanism to give said of the cams, and means moved by the other cam to move said selector out of control of the first out of control of the shuttle changing mechanism cam. 6. In a loom having a plurality of shifting shuttle boxes, a lever connected to the boxes and 10 capable of moving any box to active position, a multicolor shuttle changing mechanism, two ac tuators for the lever, each actuator capable of giving the lever two diiïerent positions and the ac tuators together capable of giving the lever four 15 different positions, a selector for the shuttle actuator additional motion to move the elements when certain of the shuttle boxes are active, and means to return the selector to the control of the iirst actuator after control of said selector by the second actuator is relinquished. 10. In a loom operating with a plurality of 10 -shuttle boxes any one of which may become ac tive, said boxes cooperating with a plurality of weaving shuttles, a weft detector to detect the condition of weft in any active Weaving shuttle, a shuttle changing mechanism to replace certain 15 changing mechanism, means moving with one of of said Weaving shuttles in the shuttle boxes, con said actuators to control and move the selector to either of two positions, and other means nections between the detector and the shuttle changer to cause the latter to replace any one moving with the other actuator to move the se of a given number of weaving shuttles less than 20 lector out of control of the iirst means, the first means moving the selector when certain of the shuttle boxes arefactive and the second means moving the selector out of control of the first means when other of the shuttle boxes are ac 25 indicating position, connections from the second tive. ' 7. In a loom having a plurality of shifting shut tle boxes, a box shifting lever capable of moving the total number of weaving shuttles in said 20 shuttle `boxes when indicating weft exhaustion through the detector, loom stopping mechanism, and connections between the detector and said stopping mechanism to render the latter eiîe’c tive to stop the loom when the detector indi -25 cates exhaustion of weft in the other weaving shuttles which are not replaced by the shuttle changing mechanism. any shuttle box to active position, a pair of ac 11. In a loom having a plurality of shifting tuators for the lever, each actuator capable of 30 moving the lever to two positions, multi-color shuttle boxes cooperating with a plurality of dis shuttle changing mechanism, a selector for the tinctive weaving shuttles, multicolor shuttle changing mechanism to supply reserve shuttles shuttle changing mechanism, and two cooperat corresponding to certain of the weaving shuttles ing levers one of which is connected to and capa ble of moving the selector mechanism, means only, loom stopping mechanism, a weft detector 35 moving with one of the actuators'to move one o1 _ to detect the condition of weft in any active 35 the levers and cause motion of the selector, and means moving with the other actuator to cause the other lever to move said one lever out of con trol of the ñrst means when certain of the shut 40 tle boxes are active. ` 8. In a loom having a plurality of shifting shuttle boxes, a box lever capable of moving any shuttle box to active position, a pair of actuators for the lever, a multicolor shuttle changing mech 45 anism, a selector for the shuttle changing mecha nism, cooperating levers one of which is con nected to and capable of moving the selector, a cam.moving with each selector,`each cam hav ing .a high and a low dwell, one of said cams to 50 move said one of the levers While the other lever is on one of the dwells of the other cam when certain of the shuttle boxes are active, said other cam to move said other lever when the latter moves to the other dwell of said other cam to 55 move the first lever out of control of the ñrst cam when certain other of the shuttle boxes are active. 9. In a loom operating with a plurality- of shuttle boxes any one of which may become ac tive, a multicolor shuttle changing mechanism to 60 supply a plurality of types of reserve shuttles less in number than the number of shuttle boxes, a shuttle box motion having two independently movable actuators to move any shuttle box to ac tive position, selector mechanism for the shuttle 65 changing mechanism movable to a plurality of control positions with respect to the shuttle weaving shuttle, connections between the de tector and the' shuttle changing mechanism to cause the latter to replace any of said certain weaving shuttles when depleted, and other con nections between the detector andthe stopping 40 mechanism to cause the latter to stop the loom when the shuttles other than those replaceable . b_y the shuttle changing mechanism indicate ex haustion. ` 12. In a'shuttle changing loom having a plu 45 rality of shifting shuttle boxes any one of which may become active and operating with a plu rality of distinctive weaving shuttles, a weft de tector to determine the condition of and indicate exhaustion of weft in each weaving shuttle, a box motion to move any active shuttle box to active position, loom stopping mechanism, a mul ti-color shuttle changing mechanism to replace certain of the‘weaving shuttles, selector mecha nism for the shuttle changing mechanism to de 55 termine the type of reserve shuttle to be supplied thereby, distributor means connected to the de tector and operated by the shuttle box motion, a control from the distributor means to the stop ping mechanism, and a second control from the 60 distributor means to the selector, all indications of exhaustion given by the weft detector being communicated through the distributor means, the latter when in certain positions effecting loom stoppage by the first control means when cer 05 tain of the weaving shuttle boxes are active, and the distributor means when moved to diiïerent changing mechanism, means to connect one of positions by the shuttle boxes communicating the actuators to the selector mechanism to move the latter to a plurality of positions, indicating 70 elements carried by the selector mechanism to the indication of the weft detector through the second control means to the selector when other. shuttle boxes are active. control the shuttle changing mechanism, one element for each position of said one actuator. RICHARD G. TURNER.