US1450942A - Machine for operating upon warps - Google Patents

Description

Apr. 10, 1923. v EASULMZ H. D. coLMAN MACHINE FOR OPERATING UPON WARPS Filedl Apr. 18, 1919 l0 sheets-sheet 1 mmmm V l Apr. 10', 1923.v 11,45%942 H. DT coLMAN MACHINE FOR OPERATING UPON WARPS I Filed Apr. 18,

Apr. l0, 1923. 11,450,942

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1,450,942 H. D. coLMAN MACHINE FOR OPERATING UPON WARPS Fil'ed Apr. 18, 1919 10 sheets-sheet 5 49 /V/f a A j m11 Il 5 :Il 7 4 l l" WI' 5X/ f l u? j( EE: (101 E; E /j E' 55% 4 5|' I /ff l Apr. 10, i923. HASQlZ H. D. CQLMAN MACHINE FOR OPERATING UPON WARPS Filed Apr. 18, 1919 lO Sheets-Sheet 6 @50 v /79 /gg Qzwzf f 67 y 607772472 l MACHINE FOR OPERATING UPON WARPS Filed, Apr. 18, 1919 l0 Sheets-Sheet '.7

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Apr. 10, 1923.

HASULMZ H. D. COLMAN MACHINE FOR OPERATIG UPON WARPS Filed`ApI. 18, 1919 wil- @um Q lili 1liI Q l0 sheets-sheet 9 Apr. w, 1923. I www@ H. D. COLMAN MACHINE FOR OPERATING UPON wARPs Filed Apr'. 18, 1919 1o sheets-sheet Jo Patented Apr. 1Q, 1923.

@NEFF FTTFS tra HOWARD D. COLMAN, OF ROCKFORD, ILLINOIS, ASSIGNOR 10 BARBER-COLMAN COMPANY, OF ROCKFORD, ILLINOIS, .A CORPORATION OF ILLINOIS.

MACHINE FOB OPERATING UPON WARPS.

Application filed April 18, 1919.

T 0 all w 710m. t may concern Be it known that I, HOWARD D. ComrAN, a citizen of the United States, residing at Rockford. in the county ot lllinnebago and State ot illinois, have invented certain new and useful Improvements in Machines for Operating upon VVarps, ot which the following is a specification.

'lhs invention relates to improvements in warp-drawing and other machines for operating upon warps. Among the salient objects of the invention are to provide Jfor an adjustment of the position of the threadselecting` mechanism to enable said mechanism to select threads, and to transport threads selected by said adjustable mechanism to a point where they can be taken by the needle or other element intended to receive them.

In the accompanying drawings, Figure 1 is a fragmental front elevation of a warpdrawing machine embodying the features of my invention, a portion only oi' the warpsupporting frame being shown and the harnesses being omitted from the harness and reed frame. Fig. 2 is a ragmental sectional view taken in the plane of dotted line 2 2 of Fig. 1. Fig. 3 is a Jragmental vertical sectional view taken approximately in the plane of dotted line 3-3 of Fig. 1. Fig. 4 is a tragmental plan view of the harness and reed carriage and adjacent parts'. Fig. 5 is a fragmental front elevation of the main carriage and its supporting means, showing also portions of the harness and reed frame and the warp frame. Fig. G is a fragmental end elevation ot the machine as viewed 'from the left hand side ot Fig. 1. Fig. 7 is a fragmental View showing the reed, the reed hook and the thread-holding wheel in top plan view. Fig. 8 illustrates the operation ot the needle and the reed hook. 9 is a fragmental top plan view of the machine. Fig. 10 is a fragmental horizontal sectional View illustrating a portion of the automatic throw-out mechanism controlled by the eye facer. Fig. 11 is a. fragmental left-hand end elevation of the machine. 12 and 13 are views to illustrate the operation oi. transferring the thread from the needle to the reed hook, Fig. 12 being a view taken in the planes indicated by lines .l2-12 in Figs. 8 and 13. Fig. 14 is a horizontal sectional View illustrating a certa'n clutch.

serial Nazaici.

Figs. 15 and 16 are views of portions of said clutch. Fig. 17 is a detail view of the means for operating the reed opener and feeder. Fig. 18 is a'detail of the means for throwing into and out oit operation the Jfeed for the main carriage. Fig. 19 is a front elevation ot the thread-selecting, separating. severing and clamping mechanism, the means 'for transferring` selected threads to the needle and the means for suspending operation ot the harness and reed handling mechanism while the thread-selecting mechanism continues to endeavor to take a thread. 2O is a fragmental front elevation ot the mechanism shown in Fig. 19. 'c'. 21 is a section on line 21-21 of Fig. 20. 22 is a 'fragmental detail view of the warp-thread deflecting bar. Fig. 28 is a tragmental view of. the thread-selecting and adjustnient-controlling devices.

ln the embodiment herein shown of the invention. the warp W, the harnesses H and the reed F. are caused to travel past the operating mechanism. The warp, the harnesses and the reed are mounted upon a carriage 1. ln the form selected for illustration the Vcarriage 1 consists of two end brackets 2, two longitudinal bars 3 uniting the lower portions of the end brackets and a bar -1- (Fig. 2) joining the upper ends of said brackets. The carriage 1 may be supported in the machine in'any suitable manner: in the construction herein shown the lower ends oit' the end members 2 are provided with feet 5 that rest upon a guiding and feeding member G rotatably mounted in the machine trame. The carriage 1 is further supported by means of rollers 7 mounted upon the bar 4 and running in a groove 8 formed "in the upper edge of a rail 9. Said rail is rigidly secured in the machine trame.

The beam containing the warp to be drawn in may be supported in any suitable wai', as. ior example, in the manner shown in my application Serial No. 557,859, filed April 27. 1910. (Patent No. 1,304,661, dated May 27. 1919) or it may be supported and ted n the manner described in Patent No. 1.190.245, granted July 4, 1916, upon an application filed by Burt A. Peterson. The portion of the warp to be acted upon by the machine may be held in any suitable way, as, for example, in a frame 10 (Fig. 2) consisting of a plurality of yokes 11 rigidly secured together by means including longitudinal bars 12. Theupper portions of the yokes 11 are broken away in F ig. 1. At the upper ends of the yokes are two longitudinally extending thread clamps, the clamp 13 at the rear side of the frame 10 being fixed with relation to said frame, while the clamp 14 at the forward side of the frame is pivot-ally connected with the yoke arms in order that the clamp 14 may be moved away from the clamp 13 'to place tension upon the threads held in said clamps. The clamps 13 and 14, the means for inserting threads therein, and the means for moving the Vcla-mp 14 may be of any suitable character, as, for example, that fully disclosed in said Peterson patent. V

Near the fixed clamp 13 is a longitudinally extending metallic bar 15 having a roughened upper edge (see Figs. 21, 22 and 23). The bar 15 is susceptible of being moved longitudinally for a slight distance, as explained in the Peterson patent, for the purpose of deliecting the threads laterally after they have been clamped and tensioned. In passing from the warp beam to the clamps upon the warp carriage7 the threads extend over a red 16 (Fig. 3) loosely mounted in pockets 1'? carried by brackets 1 8 fixed to the bars 3. The threads extend behind a shield 19 secured to the frame 10. The frame 10 is removably supported upon the carriage 1 in any suitable manner, as by providing notches 20 in the upper edges of the brackets 13 to receive the bars 12.

The harnesses and the reed are supported in a frame 21 (Fig. 1) adapted to be removably mounted in the carriage 1. rPhe frame' 21 consists of two end members 22 rigidly united at their upper ends by means of two parallel rods 23. Projecting rearwardly from the end members 22 are 'two brackets 24 2 and 4). The rear ends of the brackets 24 are connected together by a bar 25. A. bar 26 extends from one end member 22 to the other and parallel with the bar 25. As shown in Fig. 3, the bar 26 is grooved to receive one of the bars of the reed R. The harness and reed frame 21 is supported in the carriage 1 by mean-s of arms 27 (Fig-s. 4 and 5) fixed to the end members 2 and having sockets 23 to receive the ends of one of the rods 23. Upon the bar 4 are mounted sockets 29 to receive the ends of the other rod 23.

The harnesses herein shown are of ordi nary construction7 each consisting of an upper bar H (Fig. a lower bar H2 and heddles H3, each heddle having an eye H4. The harnesses are suspended from the rods 23 by suitable means such as hooks 30 like those fully illustrated and described in Patent No. 1.115399 granted to me on October 27,1914. Said hooks engage the upper bars H of the harnesses. The heddles are held under control with the eyes lying in approximately the proper planes by means of two bars 31 and 32. The upper and lower portions of the bar 31 are beveled on oppo- 1 site sides, and the upper portion of the bar 32 is likewise beveled on opposite sides to accommodate the crossing strands of the heddles. The ends of the heddle-controlling bars 31 and 32 are removably supported by the end members 22 in the manner described in said Patent No. 1.115,399. Expansion springdevices 33 inserted between the bars 32 and H2 place. a slight tension upon the heddles HP'. The bars 31 and 32 for each harness are inserted into the harness se that one strand from the lower end of each heddle eye crosses a strand from an adjacent eye at point between the bars 31 and 32. rThis arrangement places adjacent eyes at opposite sides of and slightly above the upper bar 31.

The reed R is not secured to the harness and reed frame, but merely rests upon the bars and 26.

The means for feeding the carriage 1 includes a shoe 34 (Fig. 1) attached to an arm 35 which is pivoted at 36 to the carriage 1. Rigid with the arm 35 is an 37 having an elongated opening in which is mounted an eccentric 38 (Fig. 13) pivotally mounted upon the carriage 1. 39 is a hand lever fixed te the eccentric. rPhe guiding and feeding element 6 is screw-threaded for a portion of its lengt-lu andthe shoe 34 is threaded to engage said screw. By means of the hand lever 39 the shoe 34 may be moved into and i out of engagement with the screw-threaded portion of the member 6.

The means for rotating the feeding element 6 comprises a spur gear wheel 40 mounted upon one end of said element and meshing with a pinion 41 on one end of a shaft 42' (Fig. 3). On the opposite end of the shaft 42 a spur gear wheel 43 that meshes with a gear wheel 44 (F 6). The gear wheel 44 is rotatably mounted in the machine frame and is rigidly connected to a beveled gear wheel 45 that meshes with a bevel pinion 46 fixed to the lower end of a shaft 47. On the upper end of the shaft 47 is a bevel pinion 43 that meshes with a similar pinion 49. The pinion 49 is rotatably mounted upon the drive shaft 50. Said shaft carries a tight and a loose pulley 51 and 52, respectively (Pig. 49 is operatively connected to the shaft 50 by suitable means.J as, for exampley the clutch shown in Fig. 14. Said clutch comprises a flanged member 53 which is rigidly connected to the pinion 49. Keyed to the. shaft is a clutch member 54 carrying a clutch pin 55 (Fig. 15) which is normally projected beyond the periphery of the clutch member 54 by means of an expansion spring 56. The clutch member 53 carries a projection The pinion 57, which is arranged to be engaged by the clutch pin 55. A clutch-operating member 58 is pivotally supported in a bracket 59 (Fig. 9) attached to the machine frame. The member 58 comprises an annular fiange adapted to surround a portion of the member 5st, said flange having a cam portion 60 (Fig. 16) which is adapted to be engaged by the clutch pin 55 to force said clutch pin radially inward and thus out of engagement with the projection 57. Normally the clutchoperating member 58 is in idle position. The means for swinging said member 58 into' position to throw out the clutch will be described hereinafter.

The thread-selecting and separating mechanism may be of anyl preferred type. That herein shown is similar to the construction fully disclosed in the Peterson patent, and comprises a selector 61 (Fig. 19) provided with a minute hook or barb near its forward end of a size suitable to hook or spear one of the warp threads of the size upon which the machine is being operated. The selector is arranged to be reciprocated across the plane of the warp at a point close to the deflecting bar 15. A torsion spring 62 yieldingly moves the selector toward the foremost thread of' the warp. "When the selector lifts the thread from the deflecting bar 15, the thread springs into a straight line between the clamps 13 and 14, thus moving away from the body of the warp. The selector is mounted in the forward end of an arm 63 pivotally mounted in a bracket 64. The arm 63 is rocked by means of an eccentric 65 upon a shaft 66 (Fig. 9), motion being communicated from the eccentric to the lever 63 through a bar 67.

The selected thread is separated from the remaining threads by means comprising a curved plate 68 fixed to arms 69 (Fig. 3), said arms being secured to a shaft 70 pivotally mounted in a bracket 71. The operating edge of the plate 68 is beveled or inclined at an angle of about 300 with said shaft, as shown most clearly in Fig. 9. At its rear end the plate 68 is provided with a separator linger 72. The plate 68 is oscillated by means of a crank 73 fixed to the shaft 70, which crank is connected b v a connecting rod 7-l to a crank arm 75 on the shaft 66. To the forward end of the separator plate 68 and at one end of its beveled separating edge is fixed a shear blade 76 (Fig. 19) adapted to coact with a stationary shear blade 77 fixed to the bracket '71. As the separator plate 68 is oscillated, the finger 72 enters between the selected thread and the body of warp threads, and the plate, following said finger, separates the selected thread from the adjacent threads substantially throughout its length between the clamps 13 and 14. When the operating edge of the platev 68 has passed the selected thread, the

latter has been raised from the body of warp threads so that it is cut between the two shear blades 76 and 77 as they come together. To clamp the thread before it is severed in order that it shall not jump or become slack atv the rear end of the separator plate, I provide an arm 78 pivotally mounted upon the shaft 70 and arranged to clamp the thread between itself and the outer end of the forward one of a number of stationary fingers 79. A block 8O fixed to the arm 78 and having an inclined face raises the selected thread into proper position for clamping, if it has not already been so raised by the separator plate. A spring 81 tends to move the arm 78 into clamping contact with the forward finger 79, and a pin 82 fixed in one of the arms 69 withdraws the arm 78 upon the return movement of the separator plate.

Directly behind the fingers 79 is a stationary plate or bar 83 having` at its free end an inclined surface 841: up which the separated thread is pushed by a shoulder 85 on the separating finger 72. The incline 8a C assists to raise the separated thread to the proper height to be taken by the transfer device hereinafter described.

The rate of movement imparted to the main carriage 1 by means of the screw 6 is proportioned as closely as conveniently practicable to the sley of the harnesses. Such proportioning may be effected in any suitable way, as, for example, by the use of change gears connecting the screw 6 tothe shaft 42, the gears el() and 41 (Fig. 6) being typical of such change gears.

lnasmuch as the warp is somewhat wider than the harnesses, the movement imparted to the warp by the screw 6 is not quite sufficient to maintain a supply of threads within the range of action of the selector 61. l therefore, provide means for adjusting the. position of the thread-selecting and separating mechanism from time to time as required to keep the selector sufficiently close to the unselected threads. Referring to Fig. 19: The brackets 64 and 71 which support the selecting and separating mechanism are fixed to a slide 86 which is mounted for 'movement parallel with the direction of movement of the carriage l upon a guide 87 (Fig. 2) in the machine frame. The shaft 66 is carried in bearings upon a bracket 88 (Fig. 9) fixed to the slide 86. rear end of the shaft 66 is a bevel ,gear 89 that meshes with a similar gear 99 whi. h is splined upon the shaft 50. The 7e'ear wheel 9() has a hub or sleeve 91 which is rotatably mounted in a bearing 92 on the bracket 88,

the sleeve 91 being yheld against endwise movement with reference to the hearing 92 (see 1a.).

T he means for moving the slide 86 upon its guide 87 comprises a rack 98 (Fig` 2) llpon the l!" imi ill)

fixed to the machine frame. Meshing with the rack 93 is a pinion 9e.- iixed to the upper end or' a shatt 95 which is mounted in bearings en the slide 86. Fixed to the lower end ot the shaft 95 is abevel pinion 96 that meshes with a similar pinion 97 lixed to one end oi a shaft 98. riaiiil shatt is supported in a bracket 99 that is fixed to the bracket (SI1. On the other end of the shaft 98 is 'fixed a ratchet wheel 100 (Figs. 19 and 21). rin arm 101 is pivotally supported upon the axis ot the shait 98 and carries a pawl 102 adapted to eng.Y` ge the ratchet wheel 100.. Upon the upward movement of the selector lever 63, a finger 103 rigidly attached thereto engages a lug 10a on the hub of the arm 101 and thus moves said arm to give the pawl 102 a 'feed movement. A. spring 105 restores the arm 101 and said pawl upon the downward movement or the selector lever 63. ln order that the slide S6 shall not move through momentum, l provide a brake for the sha-tt 98 comprising a band 106 encircling a brake disk 10T lined on said shaft. The band 106 is held from rotation by means of a pin 108 (Fig. 20) engaging lugs 109 on said band.

`When the warp threads are in position to be engaged by the selector 6l, the pawl 102 is prevented trom causing movement ot the slide 80. rFhe means for thus controlling the slide-adjusting pawl comprises a lever 110 pivotally mounted at 111 on a bracket 112 {ixed to the bracket 64. The upper portion of the lever 110 is curved to extend across the detlecting bar 15, and the end ol` the lever lies in the plane ot the warp threads. A torsion spring` 113 (Fig. 23) normally holds the lever 110 in contact with the foremost warp thread. Rigid with the lever 110 is an arm 1111 (Fig. 19), the rear end of which is movable into and out oi'Z the path of a stud 115 on the arm 101. 1When warp threads are present at the selector 61 the end of the arm 114 lies in the path of the stud 115 and `thus prevents the spring 105 Yfrom imparting a complete restoring movement to the arm 101 and pawl 102. When no thread is in position to be taken by the selector 61, or when the suppl;Y of threads accessible to the selector is reduced to a certain extent, the spring 113 will have raised the arm 114 so that said arm is out of the path ot movement o'i the stud 115, whereupon the pawl 102 is enabled to impart one or more adjusting movements to the slide 86.

T he means 'for positioning the heddles and facing the heddle elves .may be of any suitable character; herein is shown the same mechanism that is employed for that purpose in said Patent No. 1.115.399. 1n view oi the fact that the heddle-positioning and eye-facing mechanism is fully disclosed in said patent it has been deemed unnecessary to illustrate it in detail herein. The eye pullers, the eye holders and the eye-detainiiorks F are actuated by means of cams D2, D3 and D7 respectively (Fig. 1), mounted on the shaiit 42 in the manner described in said Patent No. 1,115,399.

Before starting a pair of harnesses through the machine it is necessary to separate the two sides of the heddle-positioning mechanism, and in order to accomplish this said mechanism is mounted on movable supports E2 and Eg as explained in said Patent No. 1,115,399. The supports E2 and E3 (Fig. 3) are mounted on rock shafts E and l0 which are connected for synchronous movement by gear segments E4. The shafts E and E are arranged to be rocked by means of a bell-crank lever fixed to o-ne end ot' the rock shaift E. One arm E3 (Fig. 2) of this bell-crank lever. is arranged to be moved by means of a hand lever E13 as eX- pla-ined in said patent. The arm E11 of the bell-crank lever carries a tooth E11 adapted to enter a notch D21 in the periphery o' a cam D13. The tooth E11 normally lies almost in contact with the periphery of said cam, and therefore the throw-out mechanism can be actuated only when the notch and the tooth coincide, viz, when the needle and the heddle-handling mechanisms are in the proper position 'for the throwing out of said heddle-handling mechanism. The lever E1, the tooth E11 and the notched disk D13 also constitute a safety device to prevent actuation of the machine while the heddle-handling mechanism is in thrown-out condition.

The eye-facer includes the two elements G5 and (w1 (Figs. 3 and 10). The eye-facer is swung from one harness to the other b means of an arm G1 and a connecting rod i extending from said arm to one arm of a bell-crank lever G3. The other arm of said bell-crank lever carries a roller that lies within the groove of the cam D11 (Fig. 1).

The movement of one of the eye-facer jaws with relation to the other is caused by means fully described in said Patent No. 1,115,399, a portion only of said means being shown in the present drawings. Among the parts shown are the lever arms G13 and G15 (Fig. 9), the link G11' (Fig. 2), the bell-crank lever G1G and the cam diskDla.

Means may be provided for automatically stopping the entire machine if the eye-facer fails to grasp a heddle eye. This means may be of any suitable character; for example, the devices that sense the absence of a heddle eye may be like those fully disclosed in said Patent No. 1, 115,399. The trigger lever G2 shown in said patent is indicated in Figs. 3 and 10 of the present drawings. Said trigger lever engages a lever O1 which is fixed upon a shaft 116. A. tension spring 117 tends to swing the lever O4r upwardly. Rigid with the shaft 116 is an arm 118. 119 is a latch pivoted at 120 and lying in the path of movement of the ar1n118. The latch 119 en gages in a notch 121 formed in abelt shifter rod 122. rl`he rod 122 carries a belt shifter fork 123. tension spring 124 (Fig. 1) tends to slide `the rod 122 in the direction to shift the belt from the tight to the loose pulley. It will be seen that when the trigger lever G11 is disengaged from the lever O4, the spring 117 will cause the latch 119 to be withdrawn from the notch 121, `whereupon the spring 124 will cause the drive belt to be shifted to the loose pulley 52. The rod 122 may be manually actuated to shift the belt to the tight pulley by means of a hand lever 125 (Figs. 2, 4 and 5), said lever being pivoted to the machine frame at 126 and having a suitable engagement at its rear end with the rod 122. The machine may be stopped at will by pushing the hand rod 127 inward to disengage the latch 119 from the belt shifter rod. WV hen restarting after such manual stoppage, the spring 119n places the latch' 119 1n engagement with the belt shifter rod.

Preferably means is provided to arrest the movement of the mechanism when the belt is automatically shifted as just described. This means may be of any suitable form, as, for example, that described in said Patent No. 1,115,399. In the present construction there is an arm 128 (Figs. 3 and 10) that is rigid with the shaft 116. Said arm is connected by means of a link 129 to an arm 130 (Figs. 1 and 2 which is fixed upon a shaft 131. Rigid with theshaft 131 is a dashpot N18. `When the trigger lever G21 releases the lever G4 to the action of the spring 117, the dashpot N11 is swung so as to place the plunger ofthe dashpot in the path of movement of two diametrically opposite teeth D22 upon the cam D11. The engagement of one of said teeth with the plunger causes the machine to be yieldingly stopped.

Means is provided for manually actuating the eye-facer to grasp a missed heddle. In order that this may be accomplished the cams D11 and D13 which actuate the eyefacer are not secured directly to the cam shaft 42, but are fixed upon a sleeve (not herein shown) rotatably mounted upon the cam shaft 42 and capable of being locked in engagement with said shaft by means of a dog D1G pivotally secured to the side of the cam D11 and adapted to engage a notch D11 in the periphery of a disk D18 fixed upon the shaft 42. The dog D16 is held in engagement with the notch D17 by a spiral spring D19. Fixed with relation to the dog :D16 is a lever D26 provided at its ends with crank handles. In case the eye-facer fails to grasp a heddle the machine stops, as hereinbefore described. The operator then reaches under the screw 6, grasps the crank handle which is within reach, operates said handle to withdraw the dog D16 from the notch D17, and by means of said handles turns the cams D11 and D13 through one revolution, thereby actuating the eye-facer to grasp the missed heddle. The operator then swings the dashpot N18 out of the path of the teeth D12, thereby causing the lever O1l to become engaged by the trigger lever G19. The machine is then restarted by swinging the hand lever 125 ,in the appropriate direction, the spring 119a (Fig. 3) causing the latch 119'to move into the notch 121 to lock the belt shifter rod.

The means for drawing the selected threads through the heddle eyes and reed spaces may be of any preferred type. Herein is shown a needle 132 (Fig. 3) secured to an arm 133, said arm being fixed upon a rock shaft 134. rIhe shaft 134 is supported by bearings carried by machine frame. Rigid with the arm 133 is a gear segment 135 that meshes' with a similar segment 136 Xed upon a rock shaft 137. Fixed to the shaft 137 is a gear segment 138 that meshes with a segment 139 which is pivotally mounted upon the shaft 134. Rigid with the segment 139 is an arm 140 having a roller stud that runs in the cam groove 141 of the cam D1. The cam D4 is rigid with the shaft 42. As the cam D4 is rotated the arm 133is oscillated to project the needle through a facedheddle eye and into position to receive a selected thread. In the continuing rotation of the cam D1 the needle is retracted, thereby drawing the thread throughthe heddle eye. v

Rigidly mounted in the machine frame is a block 142 (Fig. 8) located relatively close to the path of movement of the harness eyes, said block having a guide opening 143 for the needle 132.

The needle 132 reciprocates in an invariable vertical plane. The thread-selecting and separating mechanism, however, is adjusted in position to compensate for localized irregularities in the spacing of the threads and the greater width of the warp as compared with the harnesses. In order to bring the selected threads to an invariable point where they can be taken by the needle 132, mechanism of any suitable nature may be employed. That herein shown comprises a transfer bar 144 (Fig. 19) mounted for substantially horizontal reciprocation by means of two levers 145 and 146. The lever 145 is pivoted t0 the stationary framework of the machine at 147. The lever 146 is Xed to a rock shaft 148 that is supported in the stationary framework. Rigid with the shaft 148 is a crank arm 149 having a roller stud that runs in the groove of acam 150 fixed on the shaft 50 (see Fig. 9).

On the lower edge of the bar 144 is a hook 151 (1F ig. 19). In the rotation of the cam 150 t e hook 151 is moved into engagement with the selected thread held by the yielding clamp member 78, and draws the thread across the needle 132 just rearwardly of the hook 152 of the needle. As the needle starts if on its return stroke, the thread springs into the needle hook. ln such return movement of the needle, the thread is drawn out from between the clamp members 78 and 9, and is drawn in the form ofva loop through the Y heddle eye that is held by the eye facer.

yA reed hook 153 (Figs. 3 and 8) is pivotally supported in the machine frame at 154 and is oscillated by means of an arm 155 fixed with relation to the hook and a rod 156 connecting said arm to an arm 157. The arm 15,7 is rigid with a sleeve (Fig. 1) which is pivotally mounted upon the shaft 134. Rigid with the sleeve 158 is an arm 159 carrying a `roller stud that lies in the cam groove 141. Near the end of its forward or thread-taking movement the reed hook -153 enters, a pocket 160 in the block 142. This occurs after the needle 1824has drawn a loop of thread into said pocket. Upon its inner or concave side the reed hook 158 is provided withahook 161. 11s shown in Fig. 12, the hook 161 is located in a vertical plane at one side of the path of movement of the needle 132.v As the reed hook is completing its-forward movement the point 162 of the reed hook enters the loop `which 'has been drawn into the pocketby the needle 132, thereby spreading the two strands of the loop as indicated in Figs. 12 and 13. r1`he path of movement of the point of the hook 161 is slightly to the rear of the hook 152 of the needle. Consequently,as the reed hook is completing its forward stroke the hook 161 slightly distends the loop of thread. As soon as the point of the hook 161 has passed inside the loop, the loop springs back so that upon the ensuing reti-acting movement of the reed hook the hook 161 engages the loop of thread and draws it off the hook 152 of they needle and through the reed.

When the needle 132 is in its rearward position (as shown in Figs. 2 and 8) it is out of the way when the harness and reed frame 21 is to be initially positioned, but the reed hook 15,3 is then in its forward position and consequently in the way of the leading bracket 24. The reed hook is therefore pivotally mounted with respect to the cam L8 and thearm 155, and is releasably secured to the side of said cam by suitable means such as a spring plunger 163.` When a new set of harness and reed is to be positioned at the mechanism, the spring vplunger is pulled out, thereby allowing the reed hook to swing backout of the way of the leading bracket 24 and the reed, the thread `hook being afterward returned to operative relation to the proper space of the reed.

To hold the drawn-in threads temporarily there may be provided means similar to that described in Patent No. 1,115,399, said means including a wheel L11 having radial plushlined slots L12 through which the reed hook passes and'through which it draws the warp intacta threads The lwheel L11 is rotatably mounted is similar' to that fully illustrated in Patentv The reed-feeding and open-4 No.v 1,115,399. ing plunger is actuated by means including crank arms Ms anelli/110 (Fig. 7) rigidly secured together, a link M11 connecting the arm M10 to an` arm M12 (Figs. 2 and 17), and a crank arm lV 13 rigid with the arm M11'. The arm M13 has a roller stud that lies in the cam groove D10 of a cam D0 fixed on the shaft l/Vhen the throw-out lever E11 is operated,lthe movement of the arm E2 on which thebell crank lever M11 M13 is mount ed causes the reed detent pawl (not herein shown) to be disengaged from the reed, as explained in said Patent No. 1,115,399.

r-hould the selector 61 fail to take athread. it is desirable' to stop the heddle-handling mechanism,A the needle 132, the reed hook 153 and the reed feed while the selector mechanism continues to endeavor to take a thread. For this purpose, means has been provided for interruptingthe application of power to the heddlediandling mechanism, the drawing needle, the reed hook and the reed feed without suspending the operation of the thread-selecting and separating mechanism and the transfer device 144. l1t will be remembered that the thread-selecting and separating mechanism .is actuated through the shaft G6, said shaft being driven from the drive shaft through the gears 89 and 9,0, and thatthe transfer device 144 is actuated by the cam 150 on the drive shaft 50, whereas the heddle-handling mechanism, the needle, the reed hook and the reed feed are actuated through the cam shaft 42, said cam shaft being driven from the drive shaft 50 through the clutch 53. lin order, therefore, to suspend the action of the heddle-handling mechanism, the needle, the reed` feed and the reed hook, 1 provide means for throwing out the clutch 53, said means being automatically operated upon the failure of the selector 61 to take a thread. T his mechanism will now be described.

rThe devices that sense the absence of a selected thread may be of any suitable character. as.y for eXample,-that fully disclosed in the Peterson patent hereinbefore mentioned. and therefore, it has lbeen vdeemed unnecessary to illustrate such mechanism in detail herein.

The arm 163 shown in Figs. 19 and 2O of the present drawings corresponds to the arm 159 of the Peterson patent- This arm is connected by means of a rod 164 to a crank arm 165 having a hub which is spline'd to a shaft 166. Said hub is mounted in a bearing 167 which is attached to the slide 86. The shaft 166 is mounted in a bearing 168 carried by the stationary portion of the machine frame. Fixed to the shaft 166 'is a crank arm 169 (Fig. 9) which is connected by means of a rod 170 to a crank arm 171 which is fixed with relation to the clutchoperating member 58. During the return movement of the separator' plate 68, after a failure to take a thread, the arm 163 is swung downwardly, thereby causing the clutch-operating member 58 to be moved into position to disengage the clutch pin from the clutch member 53.

The operation is as follows: Assuming that the heddle-positioning mechanism is in the separated or thrown-out position, the needle 132 in its rear position, the reed hook 153 swung back out of operative position, the slide 86 in its starting position, the reed detent hook in its elevated position, and the main carriage 1 in itsI starting position, namely, at the extreme right. hand end of its range of' movement. A pair of harnesses and a reed having been properly positioned in the harness and reed frame 21, said frame is placed in the main carriage 1. A Warp having been clamped, stretched and deflected in the warp fra-me 10, the frame 10 is placed upon its supports 18 in the main carriage 1. The harnesses and the reed are then adjusted upon their supports into proper register with the devices that operate upon the harnesses and the reed, and the warp frame 10 is moved to bring the foremost thread into operative relation to the selector 61, the main carriage 1 being also moved if that be necessary to the proper positioning of the harnesses, reed and warp. The heddle-positioning mechanism is then thrown in, the reed hook secured to the cam LS, the screwthreaded shoe 34 is placed in engagement with the feed screw 6, and the hand lever 125 operated to shift thebelt to the tight pulley 51. As the selection of threads proceeds, the'slide 86 is adjusted upon its guide 37 to the extent. required by localized irregularities in the spacing of the threads and the difference between the widths of the warp and the harnesses. In any position of the slide 86 the transfer device 144 brings the selected thread to the needle 132. lVhen the warp-'drawing operation is completed the operator stops the machine, throws out the heddle-positioning mechanism, disconnects the reed hook from the cam LS, disengages the member 34 trom the feed screw 6, and moves the main carriage 1 as far as may be necessary to permit of the withdrawal of the harness and reed frame and the warp frame from the main carriage 1. The carriage 1 is then slid back to starting position to receive another' warp frame and harness and reed frame which have been loaded in the meantime.

Certain features 01"' this invention are applicable to various types of machines tor operating upon warps.

l claim as my invention:

1. warp-drawing machine having, in combination, an operating mechanism, means l'or supporting the warp, means for supporting` the harnesses, means for supporting the reed, means for causing relative traversing movement between the operating mechanism on the one hand and the several supporting means on the other, said movement being approximatelyY proportionate to the sley of the harnesses, and means for adjusting the position of a. portion of the operating mechanism with reference to the remainder of said operating mechanism to compensate tor the difference in the width of the warp and the harnesses.

Q. ii machine for operating upon warps having, in combination, a reciprocatory drawing needle, a thread selector, a support for the' thread selector, a warp support. means Afor causing relative traversing movement between the needle and the selector on the one hand and the warp on the other, and thread-controlled means :for adjusting the position of the selector support toward the warp.

3.. A machine for operating upon warps having, in combination, a supporting structure, a drawing needle on said structure, a support on said structure, a thread selector on said support, and means to adjust t-he position of said support on said structure in order toshiiit the field of operation of the selector relatively to the field of operation of the needle.

el. A machine for operating upon warps having, in combination, a supporting structure, a drawing needle on said structure, a support on said structure, a thread selector on said support, and thread-controlled means to adjust the position of said support on said structure.

5. A machine for operating upon warps having, in combination, a reciprocatorv drawing needle, a thread selector, a support for the thread selector, and means for adjusting the position of said support relatively to the needle in order to shift the field of operation of the selector relatively to the field of' operation of the needle.

6. A machine tor operating upon warps having, in combination, a reciprocatory drawing needle. a thread selector', a support for the thread selector, and thread-controlled means for adjusting the position of said support relatively to the needle.

7. A machine for operating upon warps having, in combination, a warp support, a thread selector, a drawing needle, means controlled by the warp threads for adjustil l) ing the position ot' the selector in order to shift the ield of operation of the selector relatiif'ely to the field of operation of the needle, and means tor placing selected threads in position to be taken by the needle.

8. A machine for operating upon warps having, in combination, a thread selector, a warp support, means for causing relative traversing movement between the selector and the warp support, and automaticallyactuated means lor iurtl er adjusting the position ot the selector relatively to the warp.

i). A machine tor operating upon warps having, in combination, means for holding a series or' warp threads; means for separating threads singly and succ ssively from the series, means for feeding the warp-holding means across the path ot movement ot the separating means; and means bearing against the foremost thread of the series for adjusting the position of the separating means.

l0. A. warp-replenishing machine having, in combination, means for supporting two series of elements, said series being of unequal widths, means to select the elements of the narrow series, means to select the elements of the wider series, means to cause relative feed movement between the two series on the one hand and the two selecting means on the other, said feed movement being approximately proportional to the sley of the narrow series7 and means to adjust the position of the selecting means for the wider series to compensate for the difference in the widths of the two series.

ll. 'i. warp-replenisliing machine' having, in combination, means for supporting two series of elements, said series being of unequal widths, means to select the elements ot' the narrow series, means to select the ele'- ments of the wider series, means to cause relative 'lieed movement between the two se ries on the one hand and the two selecting means on the other, said feed movement loeing approximately proportional to the sley of one ot the series, and means to adjust the selecting means for the other series tocompensate for the diilerence in the widths ot the two series.

In testimony whereof, l have hereunto set my hand.

nowann D. ooLMAN.

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