US1035081A - Machine for running on knitted webs. - Google Patents

Description

W. D. BUTZ. MACHINE FOR RUNNING 0N KNITTED WEBS.

Y APPLICATION FILED \TULYQ, 1908. I 1,035,081 Patented Aug. 6,1912.

W. D. BUTZ. MACHINE FOR RUNNING 0N KNITTED WBBS.

APPLICATION FILED JULY 9, 1908.

' Patented Aug. 6, 1912.

14 SHEETS-SHEET 2.

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Patented Aug. 6, 1912 14 SHEETSSHEET 3.

W. D. BUTZ. MACHINE FOR RUNNING ON KNITTED APPLIOAITION FILED JULY 9, 1908. 1,035,081

W0 mu W /ll/l/I I w? a 0 ll y III-Illa" IIIII/llIIlIIIII/Illlllt W. n. BUTZ. I I MACHINE FOR RUNNING 0N KNITTED WEBS., APPLIOATIION FILED JULY 9, 1908.

14 SHEETS-SHEET 4.

Patented ug. 6, 1912.

w. 1). BUTZ. MACHINE FOR RUNNING ON KNITTED WEBS.

APPLIOATION FILED JULY 9, 1908.

Patented Aug. 6, 1912.

14 SHEETSSHEET 6.

w. 1). BUTZ. I MACHINE FOR RUNNING ON KNITTED WEBS.

APPLICATION FILED JULY 9, 1908. 1 ,O35,081 I Patented Aug. 6, 1912.

14 SHEETS-SHEET I.

l3 Illllllil W. D'. BUTZ. MACHINE FOR RUNNING 0N KNITTED WEBS.

. APPLICATION FILED JULY 9, 1908. 1,035,081. Patented Aug. 6, 1912.

14 SHEETS-SHEET a.

W. D. BUTZ. MACHINE FOR RUNNING ON KNITTED WEBS.

APPLICATION FILED JULY 9, 1908. 1,035,081 Patented Aug. 6, 1912.

14 SEEETS-SHHET 9.

W. D. BUTZ. 4 MACHINE FOR RUNNING 0N KNITTED WEBS. APPLIOATION FI LED JULYQ, 190s.

Patented Aug. 6, 1912.

14 SHEETBSHEET 10.

W. D. BUTZ.

MACHINE FOR RUNNING 0N KNITTED WEBS. APPLICATION FILED JULY 9, 1908.

Patented Aug. 6, 1912.

14 SHBETSSHBET 11.

WW2 I z: 7 4f H I 200 as 113, 0D '6 W. 1).BUTZ.

MACHINE FOR RUNNING 0N KNITTED WEBB. APPLICATION FILED JULY 9, 1908.

1,035,081. Patented Aug. 6, 1912.

14 SHEETS-SHEET 12.

W. 1). BUTZ. MACHINE FOR RUNNING 0N KNITTED WEBS.

Patented Aug; 6, 1912. I

APPLICATION FILED JULY 9, 1908- 14 SHEETS-SHEET 13.

Illllllllrl! w c mmdu W. D. BUTZ.

MACHINE FOR RUNNING 0N KNITTED WBBS.

APPLICATION FILED JULY 9, 1908.

Patented Aug. 6, 1912.

14 SHEETS-SHEET 14.

260 51 y b as us 267 I I1 L 1 i in o S k 5.5 254 296 2 2 I f L 0 I II II II UNITED STATES PATENT enrich.-

WALTER D. BUTZ, OFNDRRISTOWN, PENNSYLVANIA, ASSIGNOR TO THE KILBOURN KNITTING MACHINE COMPANY, OF NEW' BRUNSWICK, NEW JERSEY, A COBFOBA- TION OF NEW JERSEY.

MACHINE FOR RUNNING N KNITTED WEBS.

To all whom it may concern:

i I No. 670,308; dated Marchlt), 1901.

The present machine, while similar in its general operation to that forming the subject of my former patent, embodies many changes in the construction and operation of those parts which it possesses in common-with the former machine, and also many added parts, the general purpose of the present invention being to facilitate and perfect the operation'of the machine.

The novelfeatures of construction of the present machine, the novel functions performed thereby, and the manner in which such functions are performed will be fully set forth hereinafter, and the various novel constructions and combinations of parts embodied in the claims.

f In the drawings Figure 1 is a side view which I have devised will be specifically of part of the machine; Fig. 1 is a view partly in elevation and partly in section, of another part. of the same; Fig. 2 is a top or plan view of that part of the machine shown in F ig. 1; Fig. 3 is a central vertical section of part ofthe machine; Fig. 4 is a central vertical section of another part of the machine which cooperates with that i illustrated in Fig. 8; Fig. 5 is a central vertical section illustrating parts of the machine shown in Figs. 3' and 4, certain of these parts however bearing a different, re-

lation to each other from that shown in Fig. 3; Fig. 6 is a transverse section on the line a,-a, Fig. 5; Fig. 7 is a transverse section on the line bZ1, Fig.3; Fig. 8 is a view. partly in elevation and partly in transverse section on the line 0-0, Fig. 4; Fig. his a transverse section on the line (Z-d, Fig. 4;

Fig. 1O is a transverse section on the line 3; Fig. 11 is a central vertical e-e, Fig.

owing some of the parts in a more section B Specification of Letters Patent.

Application filed Ju1y s, 1908. Serial No. 442,705.

Patented Aug.6,1912.

advanced position than that represented in Fig. 5; Fig. 12 is a view partly in side elevatlon and partly in longitudinal section on the line f--f, Fig. 7 Fi 13 is an elevation of the base of the trans er cup; Fig. 14. is a similar view of the receiving portion of the transfer cup holder; Fig. 1 4 is a detail View 1n cross section of a portion of the transfer cup holder; Figs. 15 to 40, inclusive, are views of various parts of the machine, intended to show features of construction or operation not suiiiciently illustrated in the preceding views, and Figs. 41 and 42 are longitudinal sectional views in different positions, of'a hand-operated transfer cup carrier embodying certain features of my invention; Fig. 43 is a rear view of part of the same in the position shown in Fig. 41;

Fig. 44 is a sectional plan view illustrating a modification of one of the features of my invention; Figs. 45 and 46 are, respectively,

a plan view and an end view of a supporting arm sometimes employed in connection with the guide or mandrel for the knitted tube, and Fig. 47,is a sectional view illus trating a special construction of a portion of said guide or mandrel which is sometimes resorted to.

Figs. 1, 1*, 2 and 44 are on the smallest scale, Figs. 3, 4., 5, 7, s, 10, 11, 12, 13, 14, 23 and 28 to 43 inclusive are on a large: scale, Figs. 6 and 24 to 27 inclusive are on a still larger scale, and Figs. 15 to 22- inclusive, and Figs. 45, 4G and 47 are on the largest scale.

The fixed frame of the machine is represented at 1, and this frame carries the 11o -cssary bearings, supports and guides for the operative members of the machine.

The driving shaft of the machine is represented at 2, said shaft-being mounted in transverse hearings 3 secured to the depending portions of u segmental frame 4". which is mounted upon the side members of the main frame, as shown in Fig. (l, and said shaft 2 has secured to it as shown in Figs. 3 and 5a belt pulley 5, a ratchet wheel (3,

and a bevel pinion 7. whereby all of (he other parts of the machine are driven. Svcured to or forming part of. thohelt pulley 5 is aspur wheel t), and mounted so as to turn freely on the hub of said pulley 5 is a loose pulley lO bearing such relation to the pulley that the driving belt can be readily shifted from one to the other-when.

it is desired to start or stop the machine.

Secured to theframe 4 is an annular hearing ring 11, and within the latter are mounted three rings 12, 13 and 14, which are free to slide longitudinally in said annular'bearing l l'but are incapableof anyrotary motion therein, the outermost [ring 12 havingsecured'to ita spline 15 which engages with a groove in the bearing 11, as shown in Fig. 6, and said outermost ring being connected to the innermost ring .14 by means-of-one or more connecting screws .16, -each passing through a slot in the intermediate ring 13, as shown in Figs. 3 and 5.

-Mounted so as to be free to slide longitudinally" and to turn on the annular bearingl1 is a tubular sleeve 19, which is provided witha spline 20, free to turn'in a counterbored portion of a ring 21, and engaging a is a bracket 36, which is'bolted to a slide 37' groove in the face of the hub 22 of a cup 23,

the ring 2l-being fixedly mounted upon the annular bearing 11 and the hub of the cup being longitudinally confinedto'the annular portion 24 of a carriage 25 which is adapted to suitable-guides 25 'on theside ineinbers'of the fixed frame 1, as shown in F 1g. 7. The annular sleeve 19 terminates at its 'forward end ina ring 26 of greater di ameter than the sleeve and connected thereto by a flaring grid 27, as shown in Figs. 3, 5, 15 and 16; The outer end of each bar of the grid is slotted as shown in Fig. 17 for the reception of the outer portion of a finger 29 whose inner portion projects inwardlybeyond the grid bar, these fingers being re-- tained'in position radially by engagement of a projecting portion 30 of each finger with a] groove in a ring 31, which is secured to the outer face-of the ring 26 (see Fig. 15) The cup 23 has secured to its flanged outer face a slotted ring 32, and each slot'of the ring contains a swinging hook 33, which is pivoted to the ring 32- by means of trunnions 34 adapted to a groove in'the ring 32,

hook and'rep lac1ng the same with a perfect one.

-Securedt'o-or forming part of the ring 31,

mounted in guides 37 on the carriage 25, (as shown in Fig. 7) so as tobe free to move longitudinally on the latter, the removal of the bolt 39, whereby" the bracket is secured to the slide 37, permitting rotationzof the grid 27 and cup 23 in order to bring to the top a defective hooklo'cated in any art of the series, said hooks being more rea ily accessible when t-hus brought to the top of the machine than when otherwise located.

.The parts 25 and 37 constitute a tw0part carriage, and secured to the undersideof the 511(16'37 1s a rack 40, which is engaged by a spur wheel 41 on a transverse shaft 42 mounted in suitable bearingson the side members of the fixed frame of the machine,

whereby, when said shaftfis rotated' in one,

direction or the other, the slide37 .will be moved forwardly or'rearwardly, and will,

consequently, cause like forward or rearward movement of the sliding sleeve. 19, the grid 27 the ring 26, and the p irts carried thereby. Certain of the IIlOVGIIl its of the slide 37 are also transmitted to the carriage 25, the latter, however, failing to partake of the movement of the slide when it is beginning:

either its forward or itsrearward' travel? When the slide 37 begins ,its forward that-shownin Fig. 5 the carriage 25 is locked against forward movement by engagement 1 travel from the position shown in Fig. 3 to of a. lug 43 on said carriage with alug 44 on an arm 45 which'is pivoted to thefixed frame, as shown in Fig. 12, and has a downwardly projecting pin'46 acted upon by a spring 47 in a hollow stud '49, whereby said I pin and the arm 45 have a con'stanttendency to rise. On. the arm 45'is a double-inclined.

cam' block 50, and on the slide 37 is a proairfof set jecting arm 51 which carries a screws 52 and 53. Aftert-he slide-37 hascompleted a certain portion of its forward;

movementrthe set screw 52 acts upon the and depresses the same sufficiently tofree' the I rearward inclination of the cam' block 50 lug 44 from engagementwith the lug. 43 of 1' the carriage 25, whereupon the latter partakes of the further forward movement of the slide, On theibackwardmo vement of the slide and carriage the set screw 53 acts upon the forward inclination of the cam block 50 to depress the arm 45 and carry its lug 44 out of the path of the lug 43 on the carriage, and the rearward movement of said carriage is, therefore, notarrested; a When the carriage 25 and slide 37 are in the retracted position shown in Fig. 3, the points vjot the hooks '33 engage with the stitchesof, a sleek course w of the knitted tube which surrounds the central guideor I support therefor, this slack course constituting the stitches'which are tobe transferred to the receiving device, and being usually formed. within a short distance ofa raised :1 on theweb, ,;(.SeeFigs. 20 and21.) I

the same diameter as the receiver, the presin contact with an inclined shoulder 61 on Mounted on the'annular slide 19 is a ring 54 with a flange or rib 55 around its periphcry, and during the early part of the forward'movement of the slide 37, independently of the carriage 25, said ribbed periphery of the ring 54 acts upon the rearward faces of the hooks 33 and causes said hooks toswing upon their pivot trunnions to such an extent as to carry their hooked inner ends from a substantially vertical position, as shown in Fig. 3', where they engage with the stitches of the slack course of the normal or contracted tube of knitted web, to substantially a horizontal position, as shown in Fig. 5, in order to stretch or expand the tube to sure of the ring 54 upon the hooks then causing the hook-carrying cup 23, and with it the carriage 25, to move forwardly with the slide 37 during the further forward movement of the latter, and thereby draw the knitted tube forward over its guide or support. When thus projected, the pointed ends of the hooks register with the quills 56 of a transfer cup 57, or other receiver, which is held in proper relation to the hooks in the manner hereinafter described. When the swinging hooks are projected they stretcha coiled spring 60 surrounding the series of hooks, this spring therefore tending to start the inward swing of the hooks as soon as the pressure of the ring 54 is removed, 'or relieved, the spring 60 normally resting in a groove formed by recessing the outer portions of the bars of the grid 27, as shown in Figs.'3 and 15. After the hooks 33 have been fully projected and engaged with the quills of the transfer cup, a still further forward movement of the slide 37 takes place, in order that the fingers 29 may strip from the hooks the stitches hanging thereon and apply said stitches to the quills of thetransfer cup, and during this transfer movement the hooks are slightly retracted by the pressure of the spring 60, owing to the fact that the ribbed periphery of the ring 54 travels the back of each hook, as shown in Fig. 11 During this transfer movement, when the forward movement of the carriage 25 is arrested by contact of the hooks 33 with the quills 56, the slide 37 depresses a pin (32 which is free to slide in a box 63 on the carriage 25, as shown in Fig. 5, and is acted upon by a spring 64 tending to project it, consequently the recoil of this spring will force the slide 37 rearwardly, and withdraw the transfer fingers 29 as soon as the forward movement of the shaft 42 ceases. ()n the backward movement of said shaft 42 the slide 37 moves independently of the carriage 25 .until the ring 32 of the hook-carrying cup is engaged by the ring 26 at the end of the sleeve 19, the hooks 33 being thereby fully retracted, and the further backward movement of the slide 37 imparted to the carriage 25. This movement continues until the parts reach the position from which they originally started, (see Fig. 3) and the points of the hooks enter the stitches of a new slack course which has meantime been adjusted to receive them.

In ordcrto insure the proper relation of the carriage 25 and slide 37 to effect the full expansion of the hooks 33 at the time that they are applyingtheir stitches to the quills of the transfer cup, l employ a registering device which is showh in Figs. 3 and 5, and is as follows: The slide 37 has a beveled notch 65 for engagement with. a beveled hook 66 the latter being pivotally mounted upon a stem 67 free to slide ina box 68 on the carriage 25 and normally projected by means of a spring 69 contained in said box 68. \Vhen the slide 37 is moving forward inde endently of the carriage 25 the end of the 00k 66 travels on an incline 65 in advance of the notch 65, and, by the time the slide has fully completed its independent movement, the hook has seated itself in the notch 65, and, with the hook in this position, the slide and carriage are in their proper relation to each other to effect the full outward swing or expansion of .the hooks 33. If, through any cause, however, the siide and carriage do not occupy this proper relation to one another, the hook 66 will not seat itself in the notch 65, but, before the hooks 33 reach the quills ofv the transfer cup, the hook 66 will be acted upon by a depressing device, described hereafter, and will be forced down to the bottom of the notch 65, thereby insuring proper adjustment of the slide and carriage in respect to one another.

The guide or support over which the tube of ribbed web is drawn consists of a tube 70 with a forward portion 71 of lesser diameter, said forward portion terminating at its inner end in a plug 7'12 which is secured to the forward end of the tube 70, as shown in Figs. 3 and Mounted upon the rod 71 is a slide '73 whose inner end is normally maintained in contact with a shoulder on the plug 7 2 by means of a coiled spring Tet-contained in a recess in the slide 73 and bearing against a collar 7 secured to the rod 71 as shown in Figs. 3 and The slide 7 3 constitutes a movable member of the web support and its inner end is en larged in diameter in order to completely till or slightly expand the knitted tube as it is drawn over the same and said enlarged end of the slide contains a brush 76 which as a support for the knitted web when the cutting knife, hereinafter described, is acting upon the same, the inner end of the enlarged portion of the slide being'beveled as shown invFigs. 3 and 5, and being connected by means of screws 77 to a rod 7 9, guided in the tube 71 and having a slight longitudinal movement im- -parted to it by the means hereinafter de- The ring 14'has, at its forward end, bits 94 betweenwhich and the beveled face of the slide 73 the knitted Web is caused to pass, the bits fitting between the ribs of the outer surface of the web, and bits 94 (see Fig. 21) on .the beveled face of the slide fitting between the ribs of the inner face of the web, in order to guide said ribs 15 into proper registry with the stitch-engaging hooks 33. The forward end'of the outer ring 12 is'also' provided with bits 95, be-

tween which the inner ends of the hooks 33 rest when said hooks are in their retracted position, as shown in Fig. 3,. there being twice asmany of these hooks 33 and bits 95 as there are bits 94, owing, to the fact that there is a hook for each wale of the knitted web, b0th face and back, while there is only one bit 95 for each of-tli'e face wales of the web. (See Fig. 22.) After the proper length of the ribbed web has been drawn forward by the hooks 33,

that portion of theweb which has been thus drawn forward is severed from the remaining web by cutting mechanism-hereinafter described, the slack course'stitches at the forward end of the severed w'eb being then applied to the quills of the transfer cup and the carriage 25' being retracted in order that its hooks may engagewith the-stitches of the next slack course. As, however, it is important to provide for the accurate placing or adjustment of the welt "and slack 40 course in order that the cutting knife may act at the proper point between them, and

said slack course may register properly with the points of the. hooks 33 when the carr age 25 is retracted, forwardmovement is imparted to the bits 94 and the parts cooperating therewith before the cutting operation and while the carriage 25 is at rest after having completed the first portion of its forward movement. This movement is imparted by means of a cam segment96 interposed tween the'outer ring 12 and the annular bearing 11,"as shown in Figs. 3, 5, and 10, such" segment having a slot 97 (Fig. 23) for the reception of a pin 99 pro- I jecting from the ring 12, as shown in Fig.

10, whereby,v when said cam segment is moved in one direction the ring 12 and its bits 95 will be moved forward and when the cam segment is moved in the opposite direction'said ring 12and'its bits 95 will be drawn rearwardly, corresponding movements being imparted to thering 14 and its bits 94 by reason of the connection 16 between the two rings which I have before 66 described./ At the same time the slide 73 subsequently acting cutting knife, the bits 94 and 95 and the slide 73 being then again moved rearward as shown in Fig. 21, in

order to permit the cutting knife to act, and

also to expose the slack course a for the 25is again retracted. (See dotted lines Fig. 21.) During this rearward movement -the tension on the web between the welt course y and the hooks 33 tends to prevent rearward movement of the knitted web,'and the retention of the latter is further aided by its contact with the brush 76 which is 'operated in the manner hereinafter described, and does not follo'w'the bits 94 in their retreating movement. v

The bits 94 areslotted and the outer por-' tion of each bit constitutes an elastic tongue having a beveled outer face,-- as shown in Figs. 20 and 21, and upon such beveled outer face of each of said tongues bears the beveled endof the ring 13 which can be entrance of the hooks 33 when the carriage adjusted longitudinally in respect to the rings 12 and 14 by means of an adjusting screw 100,, adapted to a threaded opening in the rear end of the ring '13 and having collars 101 and 102 upon opposite sides of a slotted lug 103 at the rear end of the ring 14, as shown inFigs. 3 and 5. By this means the spring fingers of the, bits 94, whose forward ends engage and push forward the welts of thesuccessive sections of the web, can be'accurately adjusted to accord with the thickness of said web and proper engagement of the successive welts .by said spring fingers is thereby insured.-

It is advisablealsoto press the knitted web against the rear faces of the bits 94 before the same passes between said bits and the beveled end of the slide 73, and for this reason I mount upon the guide 70 a tubular slide 104, with annular flange 105 at its forward end, this slide being connected by means of a pin or screw 106 to a rod 107 contained within the tube 70 but having a pin 109 which passes through a slot 110 in said tube -and engages an annular groove 111 on the inner faceof an adjusting nut 112, the latter being adapted to an ex- 5 ternally threaded boss or enlargement on the tube 70, as shown in Fig. 3, whereby,

as said nut is turned "in one direction orthe,

other, the fiangeof the slide 104can be moved towardor from the inner faces ofthe' bits 94 to accord with the thickness of: the

web which is bein acted upon. As the stitches in a tubular lmitted web I follow a spiral course, I pref r, in order to secure the desired degree of accuracy .in th adjustment of the we toso dispose the bits lso 116 is a spur-wheel 130 which is in mesh 94, that their outer ends, which act upon the welt g to push the web forward, shall present an offset or shoulder 94 (Fig. 22") the ends of the ribs being preferably disposed in a spiral plane, as shown in said figure.

In order to cut from the main web, those portions of the. same which are drawn out by the successive forward movements of the carriage 25, I employ a rotating knife and operating mechanism therefor as follows, ref erence being bad to Figs. 3, 5, 6,24, 25, 26 and 27: The spur wheel 9 isco-nnected to the belt pulley 5, and meshes with a spur pinion 115, which, therefore, rotates constantly on the hub of a disk 116, said hub being rotatably mounted on the bearing ring 21, and the disk being provided with a projecting boss 117, in which is mounted, so as to be free to rotate, the trunnion 119 of a swinging frame 120, the latter also having. a projecting boss 121 containing a longitudinally adjustable sleeve 122, which provides a bearing for the spindle 123 of the constantly rotating cutting knife 124, the knife spindle having secured to it a spur. pinion 125, and the latter meshing with a spur wheel 126 secured to a spindle 127, which is free to turn in the trunnion 119 and is provided at its rear end with a: spur pinion 129, meshing with the pinion 115 Secured to or forming part of the disk with a spur pinion 131 secured to the hub of the disk 132, the latter being free to turn on the driving shaft 2 but carrying a pawl 133 adapted to engage with the teeth of the ratchet wheel -6 on said driving shaft. W'hen, therefore, the pawl 133 is in engagement with the teeth of the ratchet wheel 6, thedisk 116 will be rotated and the cutting knife will be carried in a circular path around the axis of the machine, and, if said knife has been previously depressed so as to act upon the web which has been drawn forwardly over the brush 76 it will cut the forward portion of said web from the remaining portion or body of the web. K

The pawl 133 is normally moved to engage the teeth of the ratchet wheel 6, by means of a spring 134, but atall times except when a cutting operation is to be performed, said pawl is held free from engagement with the teeth of the ratchet wheel by Contact of the tail of the pawl with a tripper arm 135, which is pivotally mounted between lugs 136 on the face of the disk 116 but can be swung outward from the face of said disk by a cam 137 on a bar 139, the lat er being transversely guided on the fixed frame of the machine and operated in the manner hereinafter described. \Vhen the ii-ippor 135 is thus swung out-ward the :ag 134 causes the pawl 133 to engage the sun of the ratchet-wheel 6 and rotating motion therefore imparted to the disk 116,

the parts being shown in this relation-to each other in Fig. 6.

The number of teeth in the pinion 131 is so proportioned in respecttothe' number of teeth in the spur wheel 130 that the pinion 131 will make a certain number of complete revolutions for each single revolution of the spur wheel 130. During the time that the tripper 135 is being carried around by the spur wheel 130 the bar 139 has been restored to its original position, shown in Fig. 24, and the tripper 135 has resumed its normal position, consequently, when the wheel 130 has made a complete r'evolution the lower end of the tripper 135 will act upon the tail of the pawl 133 and will again lift said pawl from engagement with the teeth of the ratchet wheel 6, thereby stopping the rotation of the wheel 130 and the parts carried thereby.

By so proportioning the number of teeth in the pinion 131 and spur wheel 130, that two or more revolutions of the latter will be required before the tripper 135 contacts with the tail of the pawl 133, two or more revolutions of the knife 124, around the tube of knitted web will be permitted, the 1 bar 139, in that case, not being restored to its retracted position, until the spur wheel 130 is making its last revolution.

In order to prevent sudden strain upon and jarring of the parts when the pawl 133 is suddenly moved into engagement with the rapidly. moving ratchet wheel 6, said pawl is not-"hung directly to the disk 132 but tov a. ring 310 rotatably mounted on said disk, as shown in Fig. 27, a spring 311 being inter-posed between an internal shoulder 312 in the ring and an external shoulder 313 on the hub of the disk as shown-in Fig. 26', whereby the movement of the ring is transmitted to the disk through the medium of the spring and any sudden shock upon the driven parts is avoided.

At alltimes, except during the cutting operation, the rotary knife 124' occupies the position shown in Fig. 3, but when it is desired to swing the knife down into cutting relation with the fabric resting upon the brush 7 6 as shown in Fig. 5 a spur pinion 140 on the trunnion 119 is actuated by means of a toothed segment 141 on a disk 14.2, whose hub is rotatably mounted upon the hub of the disk 116, as shdwn in Figs.

and 6. The disk 142 is normally retained in such relation to the" spur pinion 140 as to maintain the cutting knife 124 in the position shown in Fig. 3, this result being effected by means of a coiled spring 143 contained in a recess 144 in the hub of the disk 142 and bearing against a lug 145 which pro ects into said recess from the hub of the disk 116, as shown in) Fig. 6.

Hung between suitable lugs' on the face of the disk 142 is a'trigger 146, which is segment 141 to by means of the I (see Fig '25) to engage the outer end of the trigger 146 and move the same, and with it,

the disk 142, in the direction of the arrow shown in Fig. 6, the result, owing to the engagement of the segment-141 and pinion 140,.being to swing the trunnion 119 ofthe knifemounting frame 120 in its bearing 117 to such an extent as to carry the knife from the outer position shownin Fig. 3 to the inner position shownin Fig. 5, the trigger notch 151 in the.

146 then snapping into a flange 147 so as to lock the disk 142 and spurwheel 130 together and cause them both to rotate in unison, as soon as the pawl 133 has, by the outward movement of the tripper 135, been permitted to engage with the teeth' of the ratchet wheel 6. The

segmental flange 147 is adjustable circumferentially on the spur wheel 130, as shown in Fig. 6, in order to determine the extent of the downward swing of the knife mounting 120, and the-depth of cut of the knife 124, the swing of the knifebeing decreased as the flange 147 is moved to bring its notch 151 toward the position of rest of the trigger 146, and increased as said flange is moved to carry its notch 151 away from such position of rest.

As soon as the spur wheel 130 and disk 116 have completed a full revolution the trigger 146 will be forced out of engage ment with the notch .151 in the by the action of a cam-152 on (see Fig. '25) the latter having meantime been moved to its rearward position, as shown in Fig. 24, sons to bring said cam into position for acting upon the trigger 146 when a full revolution of the disk 116 has been effected. As soon as the trigger'146 clears the notch 151 the spring 143 acts upon the hub of the disk 142 to restore the same to its normaljposition, thereby causing the partially rotate the pinion 140 and raise the knife from its cutting position, (shown in Fig.- 5) to' its inactive position (shown in Fig. 3), the trigger 146 then contacting withthe lug 150 on the bar flange 147 139 preparatory to the next cutting opera- The knife, being rotated constantly gear wheels 9, 115 and 129, is shielded in,all of its various positions by means ofa segmental hood 153, secured to the'member 4 of the fixed frame of the machine. v

The longitudinal position of the knife 124 can be varied, as desired, by longitudinal adjustment of the sleeve 122 in the boss 121 of the swinging knife-mounting frame 120, the pinion 125 being longer than the tion.

the bar 139 face of the spur wheel 126, in order to .permit of such adjustment, which may be rendered necessary by the fact that in some webs the slack course may be farther from forward,'I provide an independent feeding I means (see Figs. 1

and 28 to 31) compris;

ing a pair of clamping jaws constituting parts of levers 154 pivotallymounted upon a slide 155, the latter being mounted to move ,longitudinally upon a bar 156 located midway bet-ween the side members of the main frame at a point in the rear of the segmental frame member '4. (See F igs.'28 to'3l inclusive.) The levers arenormally held, by means of a spring 157, in such position'that their jaws are free from contact with the tubular web on the guide 70, .as shown in Fig. 28', but said levers maybe operated so as to cause their jaws to engage the tubular web,'as shown in Fig. 29, when the dic pending arms of the levers are acted upon" I v a wedge 159 secured to or forming part of a slide 160, which ismounted on the top oft-lie bar 156 and is provided also with lugs 161. (See Figs. 30 and 31.) The slide 160 is connected by means of an ,arm 162 to a sliding bar'163, the, latter being mounted upon the top of one of the side members .of

the fixed frame, and being moved at the v proper times by the carriage 25 through the medium of an 1 desired connection between the two, as, for instance, by means of a projection 164 on the carriage enteringan opening in an arm 165 projecting from the slide 163, as shown in Fig. 32.

When the carriage 25 is retracted, as

shown in Fig. 3, the wedge 159 and lugs T 161 occupy the relation to thelever arms 1545mm in Fig. 30, but as soon as the carriage 25 begins to move forwardlythe wedge 159 acts to separate the lower arms of the, levers and thereby cause their jaws to engage the webon the guide 70, (see Figs. 29 and 31).- As soon as this has been effected the slide 160 causes the bearing 155 to move forward with it, carrying the levers 154 and causing their jaws to pull the tubular web forward over the guide 70. at the same rate ofspeed as the travel of the carriage 25. As soon as said carriage begins-its backward movement the wedge 159 is withdrawn from between the leverJarms 154, the spring 157 acts upon said arms so as to open thejaws of the same and release the tubular web, and the lugs 161 contact with the lower arms'of'the levers to cause the same, together with the-bearing to move backward with the/slide 160, these

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