Патент USA US2126060код для вставки
Aug. 9, 1933, R. G. TURNER MULTISHUTTLE SHUTTLE CHANGING LOOM Filed Sept. 27, ‘1935 2,126,060 7 Sheets-Sheet 1 . 1715.1’ R40 Inventor Richard Greerdeai Turner Aug“ 9, 1938.. R. G. TURNER 2,126,060 MULTISHUTTLE SHUTTLE CHANGING LOOM Fivled Sept. 27, 1935 7 Sheets-Sheet 2 l HI mm ‘ ma?a’; a - Inventor Richard GreemeaiTumer MW‘;:r# ‘ Attbrneys Aug. 9,1938. 2,126,060 R. G. TURNER MULTISHUT'I‘LE SHUTTLE CHANGING LOOM Filed Sept. 27, 1955 '7 Sheets~$heet 3 m Inven‘loi Rhzhard breenhai Turner M vxklorneya Aug. 9, 1938. R. G. TURNER 2,126,060 MULTISHUTTLE SHUTTLE CHANGING LOOM Filed Sept. 2'7, 1935 ‘7 Sheets-Sheet 4 1715.] FIEIL‘I Rio R37 Fla. 6 FIG. 5 Invenk or _ Richard Breemea'i Turner Amer-us Aug. 9, 1938. ‘R. e. TURNER 2,126,060 MULTISHUTTLE SHUTTLE CHANGING LOOM Filed Sept. 27, 1935 7 Sheets-Sheet 5 iQ U Inventor Richard Greevdea? Turner Aug. 9, 1938. R G_ TURNER 2,126,060 MULTISHUTTLE SHUTTLE CHANGI'NG LOOM Filed Sept. 27, 1935 F1 2-‘; I 7 Sheets-Sheet 6 nven or 1 “ I? R‘whard Greerdea’r Turner " “mg/WWW Aug' 9, 1938. R. G. TURNER 2,126,060 MULTISHU'I'TLE SHUTTLE CHANGING LOOM Filed Sept. 27, 1935 7 Sheets-Sheet 7 F1516 on 7 q H) Position Lay .C. Inventor Patented Aug. 9, 1938 UNITED STATES PATENT OFFIQE _ 2,126,060 MnLrisnUTrLE SHUTTLE CHANGING 1.00M Richard Greenleaf Turner, Worcester, Mass, as signor to Crompton & Knowles Loom Works, Worcester, Mass, a. corporation of Massachue setts Application September 27, 1935, Serial No. 42,375 14. Claims. and the color selector to cooperate with a shuttle changer looms and it is the general object of the invention to provide a loom which is preferably releasing mechanism and capable of retaining the setting which will call for replacement of an exhausted shuttle which has passed out of action immediately after giving indication of weft _ continuously running and capable of replacing any one of several weaving shuttles upon exhaus tion of weft. ‘ So far as I am aware shuttle changing looms 10' exhaustion. . A further object of the invention relates to im which have been used commercially have been proved means for advancing a reserve shuttle limited to two-color work so far as the shuttle from the magazine to the shuttle changing box structure. 10 When the loom operates with a Knowles head motion to control the boxes and harness the set— ting of the color selection chain a whole pick ahead of the box chain would result in movement of the selector mechanism during the detecting changing features are concerned. Certain pat terns call for a greater variety of color than can be obtained‘ with two shuttles and it is an impor tant object of my present invention to provide a loom which will automatically exchange a de pleted shuttle for a fresh shuttle with reserve weft, the loom to operate with more than two shuttles, four being shown in the drawings attached hereto. In a continuously running loom it is essential that the time intervals allowed for the various operations be su?iciently long to render them commercially dependable and in providing a loom wherein the intervals are of proper length I find it ,‘ desirable to secure the indication of weft exhaus tion and operate the color control comparatively early in the shuttle changing operation. It is a further object of my present invention to provide a pattern mechanism wherein the indication for the shuttle changing mechanism will be at least one pick earlier than the indication for the ordi nary box lifting mechanism. It is a further object of my present invention to provide the reserve shuttle receiving mechanism with a box constructed somewhat differently from those heretofore employed in that it includes in its construction a rear wall which assists in prop erly placing a shuttle which is moving from the magazine toward active position. As a continua tion of this idea it is a further feature of my 40 invention to provide a box cover which shall have a shuttle grasping wall or lip to engage a rear surface of the shuttle and positively move the latter forwardly as the lay leaves shuttle chang ‘ ing position. 45 (01. 132F232) This invention relates to multi-color shuttle It is another object of my present invention to interval, thereby preventing correct cooperative relation between the active shuttle being detected and the selector. It is a further object of my invention to effect a delay in the selector move ment until time has been given the detector to 20 indicate exhaustion. The speci?c means for ac complishing this result shown herein includes a selector gear cylinder set late with respect to the box _ gear cylinder, the late setting permitting cooperative relation between the selector and 25 active shuttle during detection, but causing selector movement immediately after detection. With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of 30 parts hereinafter described. In the accompanying drawings, wherein a con venient embodiment of my invention is set forth. Fig. 1 is an end elevation of a loom having my invention applied thereto, Fig. 2 is an enlarged detailed view of the indi cation storing and reserve shuttle releasing mechanism shown at the bottom of Fig. 1, Fig. 3 is a plan View of the structure shown in Fig. 2, Fig. 3, Fig. 5 is a fragmentary view showing the lower end of the magazine shown in Fig. 1, but on an , enlarged scale, illustrating the shuttle release 45 provide an improved form of reserve shuttle re leasing mechanism which shall include in its con mechanism, struction an element capable of having two differ Fig. 5, ent motions, one of which is normal and the other of which occurs on shuttle releasing beats of the loom and is dependent for its operation on inter shuttle magazine for shuttle changing boxes, ruption of the ?rst movement. A still further object of my present invention is to provide an improved indication storing mecha 55 nism under the joint control of the weft detector 40 Fig. 4 is a detailed vertical section on line 4—4 of Fig. 6 is a horizontal section on line 6-6 of Fig. '7 is a vertical section through the reserve showing the mechanism for advancing a reserve shuttle from the magazine toward the shuttle receiving mechanism, Fig. 8 is a front elevation taken in the direction of arrow 8, Fig. '7, 2 2,126,060 Fig. 9 is a view similar to certain parts shown in the lower part of Fig. 1, but indicating different positions, Fig. 10 is a rear elevation of the head motion located at that end of the loom opposite the mag azine end shown in Fig. 1, Figs. 11 and 12 are diagrammatic views show ing parts of the color indication in different posi tions, 10 , Fig. 13 is a plan view of a representative type of pattern chain to be used with the mechanism shown in Fig. 10, Fig. 14 is a diagrammatic front elevation of the organized loom. showing the connection between 15 the color indication at the left end and the magazine at the right end, Fig. 15 ‘is a top plan view of the head motion, Fig. 16 is a side elevation of the driving gear for the head motion, Fig. 17 is a detached perspective diagrammatic 20 view of the box and color cylinder gears, Fig. 18 is a diagram showing the time relations of the several parts of the invention, and Fig. 19 is a detail plan view in the direction of 25 arrow I9, Fig. 7. In the following description I will set forth acceptable forms of the color selecting mecha nism in Figs. 10 to 13, the weft detecting mech anism at the top left part of Fig. 1, the indication storing mechanism under the joint control of the color selector and weft detector in Figs. 2, 3 and 4, the reserve shuttle selector controlled by the color selector in Figs. 5, 6 and 14, the reserve shuttle release mechanism and magazine in Figs. 1, 5, 6 35 and 9, the reserve shuttle advancing mechanism in Figs. 1, '7 and 8, and the shifting boxes adjacent the magazine, shown in Fig. 1, which constitute the reserve shuttle receiving structure. In general, it may be stated that the type of 40 loom to which I have applied my invention em ploys shifting shuttle boxes, four in the present instance, at the left end of a loom, while the shuttle changing mechanism and the weft de tector are both located at the opposite or right hand end of the loom, see Fig. 14. As the lay reaches approximately its mid position when mov» ing forwardly, or at bottom center, with the ac tive shuttle at the drop box end, the box motion will start the shifting of the drop boxes, and 50 shifting is completed when the lay has reached approximately its mid position on the rearward stroke thereof in time for picking, or at top cen ter. Approximately one-quarter of a pick later when the lay is in back center position the re— 55 serve shuttle will be placed in a temporarily raised shuttle box under the magazine, while the active depleted shuttle will approach a lower box which has been raised into alignment with the shuttle race for the purpose, boxing occurring 60 approximately at bottom center or shortly there after. There will then occur a downward shift of the temporarily raised pair of shuttle boxes so that at the time of picking, half a beat after the shift starts, the lay will be on top center 65 with the fresh reserve shuttle in picking position, the exhausted shuttle having been expelled from its box when the lay started its backward move ment after reaching front center and prior to picking of the fresh shuttle. Referring particularly to Fig. 1, the loom frame 70 F supports a rocker shaft R about which the lay L swings. The lay has a lay end I provided with being shown in front center position in Fig. 1. Shaft 5 is geared in the usual manner to the bot tom shaft 6 in a 2 to 1 ratio, the top shaft making a revolution for each beat of the loom, While the bottom shaft rotates once in two beats. The frame supports a magazine M which in turn carries a weft detector W and there are also pro vided supports for the various mechanisms here inbefore enumerated for coordinating the move ments of the magazine to the end that a reserve 10 shuttle may be supplied to correspond with the depleted shuttle which is about to be picked from the drop box end of the loom toward the maga zine. As shown in Fig. 14 I provide a gang of boxes G 15 having four cells I, II, III and IV any one of which may be aligned with a shuttle race ‘I of the lay for as many pairs of picks as desired. While there are two shuttle boxes at the right hand end of the loom, as will be set forth more 20 in detail hereinafter, yet only one of these boxes is normally active. Head motion Referring to Fig. 16, the loom frame F supports 25 an upright shaft 8 carrying at its bottom a bevel gear 9 meshing with a similar gear ID on a stub shaft ll suitably supported. An eccentric gear l2 on the stub shaft meshes with a second eccentric gear I3 on the top shaft, and since the crank 30 shaft turns at a constant rate, the stub and up right shafts will turn with variable speeds. The upright shaft has top and bottom bevel gears l4 and I5, respectively, meshing with sim ilar gears rotating with top and bottom cylinder gears H and K, respectively, and hence the latter 35 share the variable rate of rotation of the upright shaft. Each cylinder gear has a box mutilated gear section I 6 and a similar color section II, the box section having teeth l8 and a blank area 40 [9, while the color section has teeth 2|] and a blank area 2!. The blank area of the color sec tion has a zone 22 extending a space equal in this instance to six teeth beyond the corresponding area of the box section, having respect to the di 45 rection of rotation, so that the color section is later in coming to operative position than the box section by a time corresponding to six teeth, see Fig. 17. Each cylinder gear, with its box and color sections, rotates once for each beat of the 50 loom, although this is not a necessary relation. The head frame 25 supports a heel pin 26 on which are pivoted two box vibrator levers 21 and 28, respectively, and each vibrator lever carries a vibrator gear 29 attached to a connector 30. 55 The connectors operate box lifting levers 3i and 32 operatively connected to vibrators 21 and 28, respectively, and lever 3| carries a sheave 33 for chain 34 connected to lever 32. Levers 3| and 32 are pivoted at 35 and 36, respectively, and operate 60 in well known manner to give the boxes G four different positions by the chain 34 which is at tached to them. The box vibrators are operated as usual and can place any one of the shuttle boxes in picking position. The eccentric gears are set so that the cylinder 65 a plate 2 slotted at 3 to receive a sliding picker not shown. The lay moves back and forth in the sections are moving at their slowest rate when the lay is on bottom center and fastest at top center, and furthermore, the box tooth section I8 is in position to start moving the boxes at approxi 70 mately bottom center, that is, slow time for this particular setting of the head. By this relation a relatively large amount of lay motion is pos sible with a small angular motion of the color 75 loom by connectors 4 operated by the top shaft 5, section, and this timing, coupled with the color 75 2.126,oco pattern chain to be described, insures correct 00 operative relation between the exhaustion indi cating shuttle and the magazine control parts while at the same time affording a relatively long interval in which actual exchange of shuttles can be effected. . > Color selector If shifting of the color selector. and indication 10 storing controllers were synchronous with box shifting, the indication would be too late, since it would not be completed until picking from the box end, or only one-quarter of a pick before the back center position where the reserve shuttle should be ready to drop into the temporarily 15 raised box. The selection must therefore come earlier, but if the time be set ahead one whole pick, the indication, storing mechanism would be shifting at front ‘center when the feeler detects, 20 with resultant confusion of colors in the shuttle change. It is necessary therefore to delay shift ing of‘ the indication storing mechanism until after the feeler has had a chance to indicate exhaustion and set a storing indicator corre 25 sponding to the shuttle giving the indication. The color selector and storing mechanism must remain in cooperative relation with the active shuttle being detected until the feeler has had a chance to effect indication of exhaustion, after 3 Bl as shown in Fig. 14, across the loom, upwardly to the right of sheave 62, and over to the right of a third sheave 63. The connector is attached as at 64 to the upper arm of a bell crank lever 65 pivoted to the magazine frame and having a horizontal arm 66, see Fig. 6. A tension spring Bl’ having one end attached to a supporting bracket 68 rigid with the loom frame is attached to arm 64 and normally exerts a pull on the con- ‘ nector 66. The latter is therefore constrained to move to the left of Fig. 6 by forces derived from levers 41 and 48, and to: the right by the spring 6‘! when permitted to have such motion by the positions of said levers 41 and 48. Spring 61 also moves a color slide to be described by a force transmitted through lever 65. In Fig. 13 I show a continuously running pat tern chain P having four spaces for rolls. The chain comprises cross bars 69 connected by links 10 and fed over‘ a chain shaft ‘H shown in Fig. 15. The chain is assumed to move in the direction of arrow a in Figs. 10 and 13 and‘ longitudinal rows 12 and T3 are occupied by the rolls ‘M and 15 which position vibrators 21 and 28 to control the usual box motion of the loom. The high rolls 14 and low rolls ‘[5 in these two rows 12 and '13 have been set forth to give a varied sequence of motions for the gang of boxes G to produce a desired pattern. . movements preparatory to release of a re 30, which serve shuttle can take place, such movements in The other auxiliary rows 16 and 11 which I 30. have added comprise high color rolls ?8 and low ‘volving possibly a’ changed setting of parts due color rolls 19 in the same order as the rolls in to anticipated return to action of a shuttle which ' rows 12 and 13 except that the rolls on the auxil indicated exhaustion just before becoming inac iary added rows ‘I6 and TE will have the same se tive. as those in rows 12 and 13, respectively, 35. 35, The desired timing may be obtained by building quence but will be one bar ahead thereof. In other the chain so that the selectorrolls are one pick words, the ?rst high color rolls 18 at the right and ahead of the corresponding box controlling rolls, bottom of Fig. 13 in rows 16 and ‘ll and located on and then delaying effective engagement of the the second cross bar correspond to the high box rolls ‘M in rows 12 and 13 which are to become 4:0 40 selector cylinder gear with the selector vibrator gear until the feeler has had time to indicate. operative one pick later. By this phase displace- ' The vibrator gear must have a certain motion to ment the rolls of the auxiliary rows give their unlock the connector during which there will be indications to their corresponding vibrator gears no appreciable motion of the color control parts, 45 and 46 one pick before the corresponding box and furthermore, the eccentrics maybe set so rolls indicate the box motion. 45 45 “ that the slowest part of the vibrator gear motion The high rolls ‘l8 and low rolls 19 on rows 16 comes before the detector operates. These various and ‘H are capable of giving the levers 41 and 48 delays added together give the time required to four different relative positions with correspond allow the 'feeler to set a storingindicator before the color selector has had any considerable mo tion. I wish it to be understood, however, that I am not limited to the particular timing due to the setting of the eccentrics shown, since I have demonstrated that the slow time for the head may ing rocking of the color control lever 50 to as many diiferent positions. In Fig. 10 both levers 50 4'! and 48 are thrown to the left and the ?oating lever 53 is therefore in its left-most position cor responding to the low position for connector 60 with the drop boxes down and cell I active as indicated in Fig. 14. In Fig. 12 lever 48 has been 55 moved to the right while lever 4'? remains to the left, these positions being indicated in full lines, from which it will be seen that the pivot 56 has been moved to the next position to the right from the one shown in Fig. 10. Also, in Fig. 12, cer occur when the lay is in other positions than that 55 ‘ speci?ed. The color selector on the head motion will now be described in connection with Figs. 10, 11 and 12. ’ Two other vibrator levers 45 and 45 for the color indication are operatively connected by 60 means of vibrator gears 3'! and connectors 38 to levers 4'5 and 48, respectively, moving about pivot 36. Each of the levers 41 and 48 is capable of moving to either of two extreme positions, as. indicated in Fig. 12, depending upon the direction 65, . of rotation of the associatedvibrator gears. A color selector control lever 50 is pivoted at 5| to the head framerand has a depending arm 52 which is pivoted to a floating lever 53 at 54. The 70 upper end of lever 53 is attached by top link 55 to selector lever ll‘! at 56, while a bottom link 51 connects the‘lower end of the lever to the other color selector lever 48 at 58. An upper arm 59 of the lever 50 is attached to a depending con 75, nector 60 which extends downwardly under sheave tain parts are indicated in dotted lines to as sume reversed positions for levers 41 and ‘38, the ?oating lever 53 thereby being given its next step to the right. In Fig. 11 both levers Q’! and 48 have been thrown to the right and the center 54 65 is therefore in its right-most position with the result that the color control lever is given its ex treme counter-clockwise position to move con nector 60 to its upper limit. This corresponds to the placing of cell IV in active position. The 70 advance movement of lever 59 effected by the re versal of the‘position of the levers 41 and ‘38 in dicated in Fig. 12 is due to the fact that the links 55 and 5'! are connected to said levers at different distances from the common axis 36. The full line 75 l 4- . 2,126,060 position of Fig. 12 coincides with the activity of box II while the dotted position corresponds to action on the part of box III. The indication given by the high and low box rolls on rows ‘I2 and ‘I3 must be completed before the time in the loom cycle for commencement of box shifting. The latter ordinarily starts with the lay at bottom center on the pick which car ries the active shuttle into one or another of the 10 cells of the drop boxes, that is, indication from the pattern chain is completed before the shuttle is boxed "at the box end. of the loom. Inasmuch as the color rolls on the rows ‘I6 and, ‘II are a pick ahead of the box rolls they complete their 15 indication when the active shuttle is boxed on the plain or magazine end of the loom opposite the drop boxes. The color vibrators and gears are therefore placed when the lay is moving forwardly and the active shuttle is boxed under the maga 20 zine. The previous indication corresponding to the active shuttle must be retained, however, until the detector can'operate, arid this short delay is effected by the location of tooth section 20. The box cylinder picks up the box vibrator gears 25 at a bottom center, or at protection, and this would be the time the color cylinder would en gage the color vibrator gears, but as previously explained, this would interfere with the weft de tector. By having the zone 22 of sufficient length 30 it will be passing by the color vibrator gears while the lay moves the active shuttle forwardly to the detector, and the tooth section 20 will not en gage the color vibrator gears until after the de tector to be described has had an opportunity to indicate weft exhaustion. This engagement will begin with the lay at or near front center, and will continue during approximately half a beat, so that the lever 50 will be given its full throw by the time the lay reaches back center with the 40 active shuttle traveling toward the drop boxes. At this time, therefore, the arm 66 will have had time to assume a new position and give rod 8| a new vertical setting. Rod 8| rises when the boxes are to have an up shift and descends when the boxes are to drop. given in connection with the color selecting mech anism that the detector indicates exhaustion of weft with the lay on its front center position be fore the color selecting mechanism has moved appreciably, after which the selector moves. It will be seen that this result is accomplished by a single feeler mounted to permit selective shuttle change as distinguished from previous construc tions wherein the detector mechanism was unable to detect the active shuttle. The weft detector 10 shown herein may if desired be substantially the same as shown in my co-pending application Se rial No. 667,464 where the detector is claimed. Indication storing mechanism Lever 94 carries a second rod I 0| parallel to for a sliding yoke I02 pivotally connected to a positioning rod I03, see Figs. 2, 3 and 4. The latter is connected to a bell crank lever I04 piv oted as at I05 to a stand I06 ?xed to a station ary stud I 0'! which serves also as a pivot for lever 94. As shown in Fig. 1 the lever I04 is connected to the lower end of rod BI and it is by the con nection just described that the yoke slides along rods I00 and IOI in response to changing posi~ 25 tions of rod 8| induced by the altering positions of the parts shown in Fig. _10. In other Words, the yoke has positions corresponding to those of the cells of the drop boxes illustrated in Fig. 14. 30 The yoke carries a pivot rod I08 on which are mounted four indication storing elements I09, IIO, III and H2. These elements are similar and each includes a depending ?nger II3 for en gagement with a dog H4, and each element fur ther has a head II5 slotted to receive a setting latch I I6 pivoted to the head at I I ‘I. One end of each latch as indicated at I I8 is capable of moving into vertical alignment With the bent end I I 9 of the trip 99, while the other end of the latch 40 is formed with an abutting surface I20 to engage a stop rod I2I carried by the sliding yoke. A Weft detector mechanism spring plunger I22 is operative to hold each in dication storing element yieldingly in the posi tion shown in full lines in Fig. 4, a stop bar I23 limiting movement of the heads. The weft detector mechanism W is mounted on the magazine and therefore is in a position to de with the movements of the pattern chain one or , tect the active shuttle when the latter is on the 50 magazine side of the loom. A forwardly extend ing arm 85 secured to the magazine frame has pivoted thereto a lever 86 as at 87, the lever be ing held against an adjustable stop screw 88 by a tension spring 89. The lower end of lever 86 car ‘ ries a two-prong electric detector 90 from which lead tWo wires 9| and 92. The shuttles are pro vided with bobbins having metallic ferrules nor mally covered by weft, but upon approach of weft exhaustion the ferrules are uncovered to 60 permit electric connection between the prongs 93, whereupon wires 9I and 92 are electrically con nected. A changing box lifting lever 94 carries an up standing horn 95 on which is mounted a solenoid 65 96, one side of which is connected to wire 92 and the other side of which is connected by a wire. 91 to a source of electric power E which is also connected to wire 9|. It is apparent that upon exhaustion of weft in a shuttle S, solenoid 96 will be energized with the lay in front center posi tion. Energization of the solenoid'will lift arma ture 98 pivoted to a trip 99. The latter is pivoted to move around rod I00 supported as indicated in Fig. 3 on the lever 94. 75 It will be seen with reference to the description 15 rod I00 and together these rods afford support 45 The yoke slides with respect to the trip so that another of the elements I09, IIO, III or II2 be comes operatively relatable to the trip, and upon energization‘of the solenoid as already described 50 the trip will be raised to engage the end II8 ver tically aligned therewith and corresponding to the weaving shuttle which happens to be at the magazine side of the loom and depleted. Energization of the solenoid will rock the se 55 lected member II6 about its pivot to unseat the corresponding surface I20 from the stop rod I2I, thereby unlocking the associated element, and further upward movement of the trip moves the 60 selector element from the full to the dotted line position shown in Fig. 4 against the yielding action of the spring plunger I22, where the lat ter will hold the tripped setting element as long as needed. If the indicating shuttle should 65 move out of action upon its return to the drop boxes, the indication storing element will remain set but will be shifted laterally with respect to the trip 99. The indication storing. mechanism thus far described may be similar to the structure 70 set forth in co-pending application ?led by Cederlund and Holmes Serial No. 665,157. In carrying my invention into effect I have added a stop shoulder I 24 to each of the latch members I I 6, the shoulder being moved by the 75 5 2,126,060 solenoid to the dotted line position shown in Fig. 4 to be supported by the stop rod I2I for the pick up the roll I36 and depress the latter, there purpose of cooperating with a stud I25 longitudi nally .adjustable in a short lever I26 for purposes to be described more in detail hereinafter. Each latch carries a surface concentric with pivot rod I08 to engage stop rod I2I for the purpose of I52 and cause lifting of arm I45 to raise the rod I 41. The inner end of incline I 38 is located with in the projection of concentric dwell I33 far enough to permit a limited descent of stud I25 to shoulder engaging position without causing too holding the tripped latch in set position as the indicating. element associated therewith moves to indicated position shown dotted in Fig. 4. abrupt engagement with roll I36. Rod I2I therefore holds the indicated latch the part of stud I25 are the raising of rods I 41 and I52 which control the shuttle releasing mech anism of the magazine and the shuttle advancer, respectively. The upward movements of rods I41 against displacement. The effect of the mechanism described thus far in connection with Figs. 2, 3 and 4 is to store an 15 indication of weft exhaustion which may be given by any depleted weaving shuttle when on the magazine side of the loom and to throw the stop shoulder I24 corresponding ‘to the depleted shut tle into a position where it can interrupt the 20 normal downward movement of stud I25. The shifting of the yoke I32 will carry an indicated shoulder out of alignment with stud I25 if the corresponding shuttle passes out of action upon its arrival at the box end of the loom. 25 Reserve shuttle releasing mechanism The bottom shaft 6 has secured thereto a cam plate I30 which has two alternately operative cams I3I and I32, respectively, see Figs. 1, 2, 3 30 and 9. Inner cam I3! has a long dwell I33 in terrupted by a flat section I311 which constitutes rising and falling surfaces. Outer cam I32 is separated from. the flat area I 34 by a space I35 slightly greater in width than the diameter of a 35 roll I36 carried by a cam lever I31. Cam' I32 has a steep rise I33 and a dwell I39 extending part way around the plate I 35, as shown in Fig. 2. Lever I31 rocks around a stud I 46 carried by 40 45 50 .55 the rear end of box lifting lever 94 and has piv-, oted thereto as at I ill the previously described lever I26. A compression spring Hi2] surrounds a headed bolt I21 which ?ts into- a socket I28 and is loosely guided by a lug I29 on leverl31, as shown in Fig. 2, hold the small lever against an ad justable stop screw I43 on lever I31. A lifting arm I45 also pivoted as at I40 has an adjustable screw M6 to engage the left end of lever I31 as viewed in Fig. 2, and has pivoted thereto an upwardly extending rod I 41 which controls the releasing of shuttles from the maga zine to be described hereinafter. Lever I31 has 2. lug I5!) extending laterally therefrom through the slotted lower end 55! of a second upwardly extending rod I52. The up per end of this last rod extends to the shuttle ad vancing mechanism to be described. During normal operation rotation of the bot tom shaft 6 will result in roll I36 following cam I3I because of the greater weight of the left end 60 of lever‘l31, Fig. 2. Stud I25 is normally‘held in by raising the left end of lever I31 to elevate rod The two conditions therefore which result from interruption of normal downward movement on 1O . and I52 are preferably limited to cause proper op plate I63 having vertical'guide ribs ISA-against ' which lie adjacent surfaces of the shuttles in the 30 inner stacks. The inner vertical edge of plate I63 is spaced from the adjacent part of the mag azine to afford a thread passage, as shown at 83, Fig. 6. The thin partitions are also spaced from magazine plate I60 to de?ne thread passages 84. 35 The back of the magazine has a brace I65 with shuttle guiding ribs I66, while a front brace I31 is provided with other vertical guide ribs I56. The parts I62, 163 and I61 are supported from the outer magazine plate I6I as suggested in Fig. 6. ‘ The magazine has four shuttle releasing rock ing shafts I69, I16, Ill and I12 corresponding re spectively to stacks A, B, C and D. Each shaft has secured thereto a shuttle supporting and re leasing ?nger I13 and a reserve shuttle holding pad I14 of friction material, such as rubber. Normally the supporting ?ngers are in the posi tion suggested in Fig. 5 so that all of the shut tles in the stacks are ‘supported, but when the 50 shaft of a stack from which a reserve shuttle is to be drawn rocks, the supporting ?nger moves from under the lowermost shuttle to permit the same to fall on supports 22!)‘ and at the same time the supporting pad I14 moves into position to prevent descent of the superposed reserve shuttles. These parts may be similar to the cor responding features of my copending application Serial No. 460,746 to which reference may be had for a more complete description of the shuttle 60 the raised position shown in Fig. 2 by the dwell I33, but at the desired time in the cycle of loom operation the ?at surface I34 arrives under the releasing and supporting mechanism. Each rocking shaft has an operating trip ?n~_ roll and ‘the lever rocks to cause a periodic nor sion by one or another of two depressing arms I16 secured to a color slide I11 capable of slid 65 mal descending movement of the stud I25. This downward movement imparts no lift to rod I41 or arm M5 and these last named parts will therefore remain ineffective to alter the shuttle releasing mechanism. In like manner the lug I55 moves 70 down in the slotted end I5! of rod I52 without 15 eration of the parts which they move, and should this motion be less than that which would other wise be imparted to them by lifting of lever 94, the small lever I26 can yield‘ against the action of spring I42 to relieve said rods of undue strain. Magazine and shuttle release The magazine M has inner and outer plates I66 and I 6| between which are arranged four stacks A, B, C and D of diverse reserve shuttles. 25 The stacks are aranged in two pairs with a thin partition I62 between the stacks of each pair, and the pairs may be separated by a vertical ger I15 and said ?ngers are adapted for depres ing and rocking. An elongated rib H8 is secured to the slide I11 and is located between a pair of ?ngers 1119 on a rocking lever I80 pivoted about the slide I11. The upper end of lever I83 is con conditions roll I36 does not engage cam B32. Should one of the shoulders I24 be in a posi tion to interrupt the normal downward movement nected to a rod I8! the inner end of which is 70 attached to a bell crank lever 1B2 movable about a ?xed axis and operatively connected to the up per end of rod I41. Normally the rod I41 is down as already described but when it is raised 75 of stud I25, however, the steep incline I38 will during the shuttle changing operation it rocks 75 operatively altering the latter. Under normal 6 2,126,060 levers I82 and I80 to cause turning of the slide I11 in such a direction as to depress the arms I16 by a force transmitted through the web I18. It will therefore be seen that upward move shuttle from the magazine, since downward movement of an arm I16 will depress a ?nger I15 to rock one or another of the shuttle releas shuttle changing operation the pin 22I will ele ing shafts. is raised as already described preparatory to a vate the actuator arm so that the shoulder 201 Reserve shuttle selector The lever '65 has extending outwardly there from a rod I85 attached to the rear end of a bell crank color slide moving lever I86 pivoted as at I81 to a ?xed bracket 68, see Figs. 5 and 6. This connection permits rocking and sliding of part I11. The relation of the arms I16 and the fin gers I15 is set forth in Fig. 6, from which it will be understood that the spacing of these ?ngers and arms is such that rocking of the slide I11 can cause depression of but one ?nger I15 at a time. The connection 60 which is operatively related to lever 65 operates in timed relation with respect to the shifting of the boxes at the opposite end 25 of the loom and therefore the longitudinal po sition of the color slide I11 is determined by the head motion shown in Fig. 10 and in coordina tion with but prior to shifting of the gang of boxes-G. The color slide rocks in bearings I9I 30 and I92 supported on the outer end of the maga zine. It will be seen that the'structure shown in Figs. 5 and 6 operates to select a stack corre sponding to the depleted shuttle by mechanism coordinated with the shifting of the drop boxes and effecting longitudinal motion of slide I11, will be horizontally aligned with the pin 2I0, 10 whereupon forward motion of said arm 204 by the cam will rock the actuator arm in a counter— clockwise direction about axis 209 as viewed in Fig. 7. There results a tendency to compress spring 2 I 5 which is communicated to the advancer 15 arm and the latter, unless obstructed by an im properly positioned shuttle, will move from the full to the dotted line position shown in Fig. '7. Upward motion of rod I52 is timed to occur when cam 20I is in such position that notch 206 20 is under pin 2I0. The advancer head is normally behind the rear most stack of the magazine so that a shuttle dropping from said stack, as indicated in Fig. '1, will fall in front of the head. The guide rod 2I8 and eye 2 I 9 serve to hold the head in correct posi tion with respect to the fresh reserve shuttle as the latter slides along the supports 220. The pin 22I will ordinarily be held up by surface I39 of cam I3I long enough to maintain driving relation 30.. between the shoulder 201 and the pin 2I0 throughout the shuttle advancing operation, but I do not wish to be limited to this arrangement for maintaining operative connection between the shoulder and actuator pin. The cam 20I accompanies the forward motion and also that after the selection is made the color slide is rocked by rod I41 to effect delivery of the lowermost shuttle in the magazine stack corre sponding to the shuttle which is to be replaced. the cam also has a high dwell 224 which main tains the head and therefore the reserve shuttle Reserve shuttle advancing mechanism to be described for a su?ioiently long time to in sure correct boxing. As the cam 20I continues Pivoted on stud I01 is a lever 200 normally urged against a cam 20I by a compression spring 202 interposed between, the lever and the stand 45 I06, see Figs. 1, 7 and 8. Cam 20I is secured to the top shaft of the loom and makes a revolution each loom beat to move the upper end of the lever forwardly, or to the left in Fig. '1, by a force exerted through roll 203. An actuator arm 50 204 is pivoted as at 205 to the leverand has an elongated arcuate slot I99 the forward end of which communicates with a notch 206 extending downwardly and de?ning a shoulder 201. An actuator arm 208 moves about ?xed pivot 209 and carries a pin 2I0 which extends into the slot I99. A rod 2II is pivoted as at 2I2 to a part of the arm 208 and extends through a web 2I3 on one of two connected advancing arms 2I4 pivoted about axis 209. A compressing spring 2I5 lim ited by nuts 2I6 exerts a yielding force between the arms 208 and 2M tending to move the latter forwardly or to the left in Fig. '7 whenever arm 208 is moved forwardly by shoulder 201. The arms 2I4 have an advancing head 2I1 piv oted thereto from which extends rearwardly a guide rod 2I8, passing through a ?xed guide eye 2I9. The lay has a pair of the previously men tioned arcuate shuttle receiving supports 220 ex 70 tending rearwardly therefrom along which the advancer head 2I1 moves during a shuttle chang ing operation. Under normal conditions the actuator arm 204 is down, being supported by‘ pin 2I0. A lifting :pin 22I on the upper end of rod I52 extends 7/ actuator arm moves back and forth each beat of the loom, the slot I99 having an idle motion with respect to the pin 2I0, with the result that the head 2I1 is normally at rest. When the rod I52 ment of rod I41 operates to release a reserve 65 through a guide slot 222 in the advancer arm and into slot I99. Under these conditions the of the advancing head by an incline 223, and in proper position to drop into the shuttle box 40 to turn the spring 202 returns the actuator head to its rear position and the rod I52 is. released to fall so that arm I45 can again drop to permit slot I99 to be aligned with the actuator pin 2I0. It should be noted that when the head which moves the incoming shuttle is in its extreme for ward position it is substantially aligned with the front center partition of the magazine as indi 50 cated in dotted lines in Fig. 7. While this is desirable, yet I do not consider it an essential relation. Movement of a reserve shuttle from the front stack toward the lay in a manner to be described hereinafter is facilitated by having the head in the dotted line position in Fig. '1 to serve as a guide and continuation of the aforesaid front center partition, but it will be understood that so far as this front cell is concerned the advancing head does not move the shuttle for 60 wardly by any appreciable amount as is the case with the cells behind the front stack. Reserve shuttle receiving mechanism That end of the lay adjacent the magazine will be provided with upper and lower shuttle boxes 230 and 23I, respectively, see Figs. 1 and 7, the boxes being normally down so that the upper box is active and opposite a shuttle binder 232 which is substantially ?xed with respect to the 70 lay and does not share the rising and falling move ments of the boxes. It will be noted with respect to Fig. 7 that the box structure comprises a back wall 233 which is in front of the lay plate 2 and it will further be seen that the forward ends of 75 7 2,126,060 the supports 220 extend forwardly as at 235 beyond the front surface of the guide plate 2 after the weft detector has had an opportunity downwardly to engage the rear wall of a shuttle to operate. The color selector at the magazine being inserted into box 230, and this rib aligns andthe group of indication storing elements will therefore remain in register with the active shut tle when the latter is at the magazine endsuiii the cover up to the dotted position shown in Fig. ciently long to permit the detector to set the 10 storing element ‘corresponding to the. detected shuttle. .Immediately thereafter, however, the color selector and storing elements begin to shift. Fig. 18 shows the time relations of the several parts of the invention, two complete beats of the loom being represented. The top tier represents 7 in time to receive the incoming shuttle at back the positionv of the active shuttle with reference The cover 236 has a lug I83 to engage a sta tionary cam I84 carried by the magazine during the rearward motion of the lay on a shuttle changing beat. The box 230 will rise soon enough 1.5. to effect this engagement and the cam will throw center. Furthermore, the box structure has an abutment I93 to engage a detector withdrawing 20,, arm I94 pivoted to lever 86 and resting normally ‘ ‘ against a stop I95 on. said lever. When box 233 is descending after receiving, a reserve shuttle and the lay is advancing, the abutment will strike arm ,I94 and rock lever 86 to carry the detector 25.. forwardly far enough to clear the moving box ‘and fresh shuttle. 'I'he‘previously described dog H4 is pivoted to an actuator lever 240 moving about the ?xed pin In‘! by means of a cam Hi. This cam may be formed as indicated in Fig. 1 and operates in substantially the same manner as does ‘corre sponding structure‘ shown in my aforesaid ap plication Serial No. 585,564. When one of the indication storing elements directs the dog under the ledge 238 of lever 94, see Fig. 4, the latter ‘will be raised by upward vmovement of the forward to the lay positions indicated by the bottom tier #10. In the latter, F. C. standsfor front center position of the lay; Top C. for the top center;v B'K. C. for back center; and, Bot. 0.. for bottom center. The vertical :lines represent 15 degrees of angular position of the crankshaft, and the shaded areas represent periods of motion‘ of the several mechanisms identi?ed. , ‘ At the left F. C., Fig. 18, with the active shuttle boxed at the magazine end, the detector will be _ detecting, as represented by the shaded area in tier #2. Shortly after this F. C. position the effective movement of the parts represented in tiers #1, #3 and #4 will start and continue until the lay is nearer back center than top center. The area in tier #2 shadedin dotted lines rep resents entry of the feeler into the shuttle box 230 when the active shuttle is at the drop box 35 end and no detection is possible. The color vi end of actuator 240 with resultant upward move- ‘ brator position is shown in tier #8 and the period ment of a boxlifter rod 242 whicliis operatively of engagement for the color vibrator gear is connected to the box lifter lever 94 by structure shown by the shaded area in tier #9. The dif 40, indicated in‘ Fig. 1. When the boxes rise and ference ‘in length between the ‘shaded area ‘of the lay moves rearwardly the cover 236 will be tier #9. and those of tiers #1, #3 and #4 repre 40 raised from the full to the dotted line position sents the unlocking of the vibrator connector,_as shown in Fig. 7 by mechanism not set forth herein already explained. but shown in aforesaid application Serial No. The selected reserve shuttle is released as in 460,746, the result of which is to leave the top of dicated by the shaded area in tier #5after the 45'. box 230‘ open so that a shuttle which has been selector has come to rest, and thereafter the re 45 moved forwardly by the advancer head will be serve shuttle advancer comes into ‘action at a able to drop into the upper box 230 by gravity, time indicated. 'by the solid line shaded area in falling along the wall 233. As cam 24! con tier #6, the‘ time interval between ‘these areas tinues to turn the boxes will descend and the. permitting the shuttle to cease vibration due to “incoming shuttle will be brought into engagement falling. The dotted line area in the latter‘ tier 50 with the stationary binder, being caught between represents the forward motion of head 204 oc the latter'and the back wall of the shuttle box. curring during part of the time the active shuttle The frictional contact ‘between the box back and is boxed at the‘rmagazine end and is moving toward the drop boxes, this motion of head‘2il4 5.5. the shuttle assists materially in moving the in coming, shuttle down as the boxes fall, this mo being without effect, since it starts before reserve tion further being aided by the cover 236 which shuttle release. Head 284 is preferably back in moves back to the full line position shown in rearmost position before reserve shuttle release, see tiers #5 and #6, to insure placing of the Fig. 7 as the boxes descend. For a further de 60 scription of the mechanism for raising the boxes pusher head 2I‘I behind the rearmost stack of “230 and 23I, reference may be had to the last reserve shuttles. named application. ‘ > Since lever I31 controls head 204 as well as the shuttle release, there is a further reason for Operation ‘315. 7 being one pick in advance the box motion, and the being delayed so that it color vibrator gears until sufficiently to direct a reserve shuttle downwardly into the top’ box when the cover 236 for the latter is raised. The cover has. a rib 234 extending with the wall 233. The cover and its rib are notched as at 231, Fig. 19, to permit raising of the 10 cover without interference with the overhand 235. 30 for the color vibrators of the indication for color cylinder section does not pick up the delaying shuttle releasing, namely, to permit un , In normal operation, the pattern chain will loom and the boxesv will shift according to the obstructed up motion of head 204 if necessary. This is apparent from Fig. 18, where the dwell 65 between shaded areas suggests that the advancer desired pattern to render active any one of the head is back before the reserve shuttle is re weaving shuttles S’, S2, S3 and S4. The pattern leased. . While I have shown a one-pick cam for have an advance movement each beat of the 7 chain will be built with the bars in pairs since there is no shifting on that beat of the loom when the active shuttle is at the magazine side. With each shift of the boxes there will be a corresponding motion of lever 50, which occurs, however, before box movement, the indication operating the advancer head ZI'I yet I do not 70 wish to be limited to this construction. The reserve shuttle advancer completes its for ward motion and places the reserve shuttle in correct vertical position for change before the lay reaches back center when the active shuttle 75, 8 2,126,060 is moving toward the magazine end, and the box ing from the spirit'and scopev of the invention and 230 is also up by action of cam 24I, dog H4 and I do not wish to be limited to the details herein disclosed, but what I claim is: 1. In a multicolor shuttle changing loom oper ating with a plurality of weaving shuttles any one of which may become active, a plurality of groups of reserve shuttles, a pattern surface to determine which weaving shuttle is to be active, lever 94 before the same back center, as shown by the shaded areas in tiers #6 and #7. As the lay reaches back center, therefore, the incoming shuttle, being backed by head 2!", falls into the raised box 230. Box 230 is represented as up at top center to permit cover lug I83 to engage cam. v I84 and raise the cover. ' ' Head 2!‘! then recedes, but the boxes 23!! and 23! remain raised until the ensuing bottom cen ter, or slightly thereafter, to permit the outgoing depleted shuttle to enter box 23L After boxing, the boxes descend to permit the depleted shuttle to be ejected under the stationary binder by lay motion when the lay is at front center, as indi cated at the right end of Fig. 18, where the shuttle changing boxes are represented as down, per a set of movable reserve shuttle selectors depend ent for their position upon the pattern surface, 10 Weft detector controlled means to move the se lector corresponding to the active shuttle from normal to abnormal position, a plurality of re serve shuttle releasing means, an operating cam having two different surfaces, a lever rendered 15 capable by one of the surfaces to move into co The timing suggested in Fig. 18 is desirable, but I do not wish to be limited to the exact relations operative relationship with a selector in abnormal position, the latter selector thereupon holding the lever inthe path of the other surface to cause the lever to become operatively related to the second surface, and operative connections be tween the lever and the reserve shuttle releasing or intervals represented. means operated by the second surface of the cam. mitting picking of the freshly inserted reserve shuttle. , ' The various parts al ready described will be set to give the sequences illustrated. ' The control exercised by the indication storing mechanism is such that a shuttle giving'indica tion of exhaustion and on the magazine side can effect setting of its corresponding storing element and then move out of action when next arriving at the drop box end, after which another shuttle may become active and which during its period of activity may be replaced without loss of the indi cation given by the first shuttle. From the foregoing it will be seen that I have provided a multicolor shuttle, changing loom ca pable of operation with more than two shuttles and wherein the weft detector is on the maga zine side. It will also be seen that the pattern ~ , control is so constructed that the shifting of the 2. In a shuttle changing loom operating with a plurality of weaving shuttles any one of which 25 may become active, a plurality‘of groups of re serve shuttles, a pattern surface to‘determine which weaving shuttle is to be active, a plurality of reserve shuttle releasing mechanisms, a set of movable reserve shuttle selectors, one for each 30 weaving shuttle, said selectors dependent for their position upon the pattern surface, weft de— tector controlled means operative upon exhaus tion of the active shuttle to move the selector corresponding to the active'shuttle from normal 35 to abnormal position, a lever having a normal movement toward and beyond the abnormal po sition of the selectors and having its motion in— terrupted by a selector in abnormal position, means to give the lever a working stroke when its 40 color selector and indication featuring vmecha motion is interrupted, and operative connections nisms is delayed until the weft detector has had between the lever and the reserve shuttle releas ing mechanism effective when the lever has a working stroke to release a reserve shuttle cor time to operate, thereby insuring registry between the active shuttle being detected and its corre-. 'hsponding indicating element. This result as ac. complished by the specific means set forth herein includes a pattern chain having an auxiliary sec tion built like the main section but one pick in. advance thereof, together with the modi?ed form of mutilated cylinder for the vibrator gear which will effect the desired delay to be exercised by responding to the shuttle which renders the weft detector controlled means operative. 3. In a multicolor shuttle changing loom oper ating with a plurality of weaving shuttles any one of which may become active, a plurality of groups of reserve shuttles, a pattern surface to 50 determine which weaving shuttle is to be active, the color selection. Furthermore, the cam which a plurality of reserve shuttle. releasing mecha controls lever I3‘! is capable of giving said lever , nisms, one for each weaving shuttle, a set of two different motions one of which is normalrandr reserve shuttle selectors, one for each weaving the other of which is due to interruption ofthe normal motion byone or another of the indi shuttle, dependent for their positions upon the 55 pattern surface, weft detector controlled means cation storing elements. operative upon exhaustion of weft in an active The shuttle advancing shuttle to move the selector corresponding thereto tain a more or less parallel relationship with re- 7 from normal to abnormal position, a member spect to the back wall of the reserve shuttle bei'ng having a regularly recurring motion toward and 60 advanced toward shuttle changing position. beyond the abnormal position of a selector and movable in a ?xed path with respect to which Also, the shifting box 230 which receives the in coming shuttle is provided with a rear wall, and the selectors move, motion of the member to be its cover is correspondingly formed, so that the interrupted by a selector in abnormal position head 2 I‘! is preferably so constructed as to main and lying in said path, means to move the mem 65 changing operation than has been the practice , ber away from a selector in abnormal position when movement of the member is interrupted heretofore. The shuttle changing mechanism herein, shown _ by a selector in abnormal position, and connec and described is not claimed in this application’ tions operatively related to the member and effec tive when the latter moves away from the selec-. 70 but forms the subject matter of a divisional ap shuttle is under better control during the shuttle plication Serial No. 88,649, ?led by me July 2, 1936. Having ‘thus described my invention it will be seen that changes and modi?cations may be made tor to operate the reserve shuttle releasing mech anism corresponding to the selector in abnormal position. ’ ' 4. In a shuttle changing loom operating with a l- ‘therein by those skilled in the art without depart- ‘ plurality of weaving shuttles any one of which 75 2,136,060 may become active, a-weft detector, a reserve shuttle releasing mechanism for each weaving shuttle, a selector for each reserve shuttle re leasing mechanism, a member moving regularly toward the selectors along a path with'respect the loom cycle, a multicolor reserve shuttlemag: 'azine, a selector to determine the type of reserve shuttle to be released by the magazine, shifting shuttle boxes, a box pattern surface for'the shift ing‘shuttle boxes, indicators for the‘ box pattern surface operatively related to the shuttle boxes, to which the selectors move so that each selector is movable to a position adjacent said path, weft ‘ a selector pattern surface similar to the main detector operated means to move the selector pattern surface but having its indications stepped corresponding to an active depleted shuttle from , ahead of those of the main pattern surface by an 110 normalto abnormal position and into said path ' interval corresponding to one beat of the loom, ,10 to interrupt the motion of said member, means to move the member away from the selectors ‘ when movement of the member is‘interrupted by a selector,‘ and operative connections between $15 the member and reserve shuttle releasing mech anisms effective when the member moves away indicators for the selector pattern surface oper atively connected to the selector, a regularly moving actuator for the indicators of the box pattern surface to engage the indicators for the latter at a given box point in the loom cycle, a from the selectors to ‘actuate the release mecha nism corresponding to the selector lying’in the second actuator, and means to operatively relate the indicatorsof the selector pattern surface to the vsecond actuator after said detecting point path of the member. and a substantial interval of time before said ~ ' 5. In a multicolor shuttle changing loom, a multicolor reserve shuttle magazine, shifting shuttle boxes, a reserve shuttle selector for the box point inthe cycle of loom operations. 20 ‘ 9. In a multi-shuttle shuttle changing loom, a reserve shuttle selector, an actuator therefor magazine, a pattern surface to control the shuttle boxes, a pattern surface to control the selector :25 similar to the boxsurface but set ahead of the stroke and having an operative stroke when the latter by an interval of one beat of the loom, and means cooperating with the selector pattern sur ing shuttle boxes, a set of indication storing ele ments moving in timed relation with respect to face‘to effect movement of the selector‘prior, to motion of the shuttle boxes by an interval sub-v the boxes so that but one element at a time is aligned with the actuator, a weft detector, an in terrupting member carried by each element nor 30 '30 stantially'less thanv one beat of the loom. , 6. In a multicolor shuttle changing loom, a weft detector to operate at a given detecting point in the loom cycle, 'a multicolor reserve shuttle magazine, a selector to determine the type of re 35 serve shuttle‘to be released by the magazine,’ shifting shuttle boxes to cooperate with a plu rality of weaving shuttles, a box pattern surface having a regularly recurring non-operative regularly recurring stroke is interrupted, ‘shift mally out of the path of the actuator, and means ‘ controlled by the detector when giving indication of weft exhaustion in an active shuttle to move the interrupting member corresponding to the active shuttle into interrupting position with re 35 spect to the actuator. 10, In a multicolor shuttle changing loom ‘for the shifting boxes, a selector pattern surface operating with shifting shuttle boxes and oper ‘for the selector similar to the ?rst pattern sur face but giving its indications one beat of the ating in a cycle having a period of calling and shifting the shuttle boxes, a multicolor reserve magazine at one end of the loom, a weft detector loom prior to the indications of the box pattern surface, indicators for both pattern surfaces, an actuator’ for the box pattern surface indicators effective to move the latter at a given box'point in the cycle of loom operations, a second actuator for the indicators of the selector pattern surface effective to actuate the indicators corresponding to the selector pattern surface later than said‘ detecting point and prior to said box point in the 50 cycle of loom operations, and operative connec ‘ tions between the selector indicators and the se lector. '7. In a multicolor shuttle changing loom, a weft detector operating at a detecting point in the loom cycle, a multicolor reserve shuttle mag azine, shifting shuttle boxes cooperating with a ‘plurality of weaving shuttles, a selector for the magazine to determine the type of reserve shuttle ‘ to be released by said magazine, a pair of rotary actuators having blank and operating areas, one for the boxes and one for the selector, the blank area of the selector actuator overlapping the operating area of the box actuator, a box pattern surface for the shifting boxes and box actuator, 465 a selector pattern surface for the selectors and the selector actuator, the selector pattern surface being similar to the box surface but giving its indication, one beat‘ earlier than said box sur face, and means cooperating with the selector 70 ‘actuator effective to move the selector after the detecting point and in advance of‘ a shift of the shuttle boxes by an interval substantially less than one beat of the loom. ‘ l 8. In a multicolor shuttle changing loom, a 75 weft detector operating at a detecting point in 25 at the same end of the loom, a selector to deter mine the type of reserve shuttle to be released by the magazine, a lay to move forward to present the active shuttle to the detector, and control .45 pattern means for the'yselector effective when the active shuttle is on the magazine side of the loom to effect a shift of the selector immediately following operation of the detector, said shift to occur b?fore said period and anticipating and .50 corresponding to a box shift to occur during said period when the active shuttle is in the shifting boxes on the next beat of the loom. 11‘. In a multicolor shuttle changing loom operating with shifting shuttle boxes and oper 55 ating in a cycle having a period for calling and shifting the shuttle boxes, a multicolor reserve shuttle magazine, a selector to- determine the type of reserve shuttle to be released by the mag azine, a lay having back and forth movements in 60 the loom, a detector on the magazine side‘ ofthe loom rendered operative to detect the condition of the active shuttle by forward movement‘of the lay, a pattern surface to control the selector, and means to render the pattern surface for the se 65 lector operative to remove said selector imme diately after the detector has operated and before said period in anticipation of a shift of the shuttle ’ boxes to occur during said period. 12. In a multi-shuttle shuttle changing loom, 70 a shuttle selector, an actuator therefor, means to give the actuator periodic normally non-operative movements and effective when a periodic move ment of said actuator is interrupted to give the latter an operative movement to move the se 75 i0 2,126,666 "lector‘, a ‘weft detector, a member normally out of the path of the actuator, and means controlled by, the detector to move the member into inter rupting relation with respect to the actuator when the detector indicates exhaustion of weft in the active shuttle and cause the actuator to move the selector. 13. In a multi-color shuttle changing loom, a 14. In a multi-shuttle shuttle changing loom, shifting shuttle boxes operating with a plurality of distinctive Weaving shuttles, a set of indicat ing elements, means to move the elements in timed relation with the shifting of the boxes, 5 there being an element for each weaving shuttle, a projection operatively related to each element, a reserve shuttle magazine having groups of re weft detector, a multi-color reserve shuttle mag az‘ine, a shuttle selector therefor, connections be ‘tween the detector and selector to set the latter serve shuttles corresponding to the weaving shut for control of the magazine when the detector indicates weft exhaustion, shifting shuttle boxes, .for the selector, means to move the actuator rela tively to the groups and in timed relation with the elements, means to move the actuator toward the elements, means to cause the actuator to 515 operate the selector and cause the latter to re leasea selected reserve shuttle when the actuator a selector pattern surface having a sequence of elements to control the selector, a box pattern surface having a similar sequence of elements to control the shifting shuttle boxes, actuators con trolled by the pattern surfaces to actuate the se lector and the shifting shuttle boxes, support means for the pattern surfaces tohold the two surfaces with their sequences offset with respect to each other a distance corresponding to less than ‘one beat of the loom, and means to move the support tocause the selector pattern surface to move the actuator corresponding thereto im mediately after indication of weft exhaustion of the detector and prior to movement of the box actuator by the box pattern surface. tles, a reserve shuttle selector for the magazine to release a selected reserve shuttle, an actuator engages any projection, said’ projections being normally out of operative relation with respect to the actuator, a weft detector to initiate a shuttle 20 changing operation of the loom, and connections between the detector and‘ elements to move the projection of an element corresponding to the depleted shuttle into position for engagement by the actuator and thereby cause the actuator to operate the selector. RICHARD GREENLEAF TURNER.