US838065A - Knitting-machine. - Google Patents

Knitting-machine. Download PDF

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Publication number
US838065A
US838065A US25307105A US1905253071A US838065A US 838065 A US838065 A US 838065A US 25307105 A US25307105 A US 25307105A US 1905253071 A US1905253071 A US 1905253071A US 838065 A US838065 A US 838065A
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shaft
cam
machine
plate
needle
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US25307105A
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William C Whitcomb
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GEORGE D WHITCOMB Co
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GEORGE D WHITCOMB Co
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B7/00Flat-bed knitting machines with independently-movable needles
    • D04B7/04Flat-bed knitting machines with independently-movable needles with two sets of needles

Definitions

  • PATENTES DEC. llE 1906.
  • PATENTE DEG. 11, 190s.
  • PATENTE DEG. 11,1190-5..
  • the invention relates to knitting-machines, and particularly to those which produce a fabric comprising a' succession of articles adapted to be separated.
  • One of the objects of the invention is to provide improved means for the formation of a lock-stitch, and, as the machine is organized, particularly for forming a locke stitch as the connecting-web between successive articles, so that when vseparated each may have a selvage edge.
  • a further object is to provide -improved means for forming a half cardigan-stitch and for changing from this to other forms of stitches.
  • FIG. 4 L1 is an inclined elevation as viewed from the line 5 5 of Fig. 2.
  • FIG. 6 is a bottom plan view of one of the cam-carriages.
  • Fig. 7 is a sectional view of the same on the line 7 7 of Fig. 8.
  • Fig. 8 is a detail cross-section of the machine on the line 8 8 of Fig. 5.
  • Fig. 9 is a detail section on the line 9 9 'of Fig. 8.
  • Fig. 10 is a section taken on the line 10 10 of Fig. 2.
  • ig 11 is a detail end elevation ofthe machine as viewed from the line 11 l1 of Fig. 1 ⁇ 0.
  • Fig. 12 is a detail of Fig. 2, showing the parts in a different position.
  • Fig. 2 is a detail of Fig. 2, showing the parts in a different position.
  • Fig. 13 is a sec- ]4 is similar to Fig. 10, but showing the arts lin a different posit-ion.
  • Fig. 15 1s a etail section on the line 15 15 of Fig. 14.
  • Figs. 16 and 17 are sectional viewsl on the lines 16 16 and 17 17, respectively, of'Fig. 3.
  • Fi ..18 is a detail section on the line 18 18 of 2Fig. 3.
  • Fig. 19 is a sectiona view taken on the line 19 19 of Fig. 18.
  • Fig. 20 is a detail section on the line 20 20 of Fig. 2.
  • Fig. 21 shows a modification in the construction, and
  • Fig. 22 shows in detail some of the parts illustrated in Fig. 3.
  • l 1 shows a modification in the construction
  • the machine is carried by a .frame com- -prising uprights, 51,.and 52, the ioorplate 53, lower side rails 54 55, and upper side rails 56 and 57.
  • Cam-carriages are shown at ,58 and 59 and a frame for a yarncarir at 60, these parte being adapted to re. ciprocate over the needle-plates 63 and 64.
  • rods 61 and 62 are joined to the cani-carriages and are 'united by a crosshead 65, which travels in ways 66, formed in thel upper side rails 57.
  • This cross-head is driven by a mechanism which in its simplest formmay consist cfa swinging lever 67, pivoted to the cross-head and fulcrumed at the base of the machine.
  • a mechanism which in its simplest formmay consist cfa swinging lever 67, pivoted to the cross-head and fulcrumed at the base of the machine.
  • the lever 67 is i actuated by means of a pitman 70, driven by l a crank 7l on a shaft 72, journaled in the i lower side rails 54 55.
  • -counter-shaft 75 is extended through to the front of the machine and provided with a hand-wheel 77, which finds coiwenicn t use in setting up the machine.
  • the needle-plates 63 and (54 are provided with the usual transverse slots or ner-uile- ⁇ Ways 78, in which are fitted needles 79 of usual forni, each'having a cani-engaging lug 80 extending upwardly into the path of the cam-carriage and resting upon.
  • a needle-supporter 81 which is provided with a downwardly-projecting finger 82, riding upon a pattern-cylinder S3, having elevated and deressed portions, as 84, for raising and lowering the needle into and out 'of action
  • Each of the earn-carriages 58 and 59 is )rovided with an advancing cani-plate 85, which has double-inclined cani-surfaces 86 and.
  • each carriage two retracting-cams 88 and 89, which, as their position determines the tension of the knitting, are niovably attached to the cam-carriages by means of pins 90, moving in slots 91 in the floor of the carriage.
  • Each of these retraeting-eams is slotted as usual, as shown at 92, this slot receiving a wrist-pin 93 upon a crank-disk 94 at the. base of an upright shaft 95, journaled in the frame ofthe carriage.
  • This shaft is provided at its upper end with a worm-wheel 96, meshing with a worm 97, journaled in ya bracket-arm 98, rising from. the back of the carriage and "running upon a square shaft 99, extending over the needle-plate for its entire length and journaled in brackets 101, rising from the frame of the machine.
  • the square shafts 99 and the pattern-cylinder 83 are intermittently driven, as may be desired to produce the required pattern. in the fabric, by means of a pattern mechanism carried by the 'end vupright 50 of the frame of the machine.
  • the pattern-cylinder 83 is extended in either direction by. shaft-sections 102 and 103, which are journaled, respectively, in the end plate 50'and in. a hanger 104, depending from theinner end of the needle-plate, the cylinder being free to rotate independently of the shalt-section 103,' but movable longitudinally tlmrewith.
  • ApaWl-arin .105, Fig'. 16, carrying a springlpawl 106 is rotatably mounted on the outer end of the' shaft 102 and col'ierates with a -ratcliet-wheel 107, fixed to such shaft.
  • a dog 108 is pivoted to the fra-nie of the inachine and engages the teeth ol' the ratchetwl'ieel 107 to prevents its turning in the opposite direction.
  • a cani-plate 109 is provided for swinging the paul-arms so as to advance the patterii-cylinders 8S. This cam-plate is mounted upon a hollow sleeve 111, supportl ed-by a stud 112, securely fixed. in the frame of the machine.
  • a spring 110 reacts between the pawl-arins 105.130 insure their engagement with the face of the cam-plate 109.
  • the hollow sleeve 111 and its cam-plate 109 are driven from the main driving-shaft of the machine.
  • a shaft 113 extends along the machine from the u right 51 and projects through the face of tie end plate 50. This shaft is driven from the shaft 72 by means of a pinion 115, which. through the medium of an idler 116 drives a gear 117 keyed to the hollow shaft 1.11.
  • Each of thesqua e shafts 99 carries on its forward end a pinion 118, which meshes with a gear-rack 119, extending across the end of the machine and supported by guides projecting from the brackets 100.
  • This gearrack is joined by a link 120 to a bell-crank lever 121, pivoted to the frame of the .machine at 122 and operatively connected by a tension-rod 123 to a swinging lever 124.
  • a cam-engaging linger 126 projects into the path of cani-blocks 127, secured vto the face of a pattern-ring 12S andadapted. to swing the lever Le and reciprocate the gear-rack 119 when they come into engagement with the finger 126.
  • a spring reacts between the frame of the machine and the lever to return it to its normal position when its forward end becomes disengaged from the cam-block.
  • the pattern-ring 128A is driven in the following mairner: 'A beveled gear. 129 is formed upon the inner face of the gear 117, carried by the hollow sleeve 111, and meshes with a gear 130, carried by a vertical shaft 131, running in suitable boxes secured to the inner face of the end plate 50 and carrying at itsy lower end a worin 132, actuating a worinwheel 133, mounted upon the inner end of a short horizontal shaft 134, journaled in and extending through. the plate 50. A pinion is secured'to the outer end of this shaft surface of the pattern-ring 128.
  • This crescent-plate is secured by a bolt 13S to a bar 137, mounted on the end plate 50 :1nd having a T-slot for receiving the head of the bolt 1.38.
  • the crescent-plate is provided with a shoulder 139, between which pattern-ring 12S runs.
  • a lock-stitch is formed by reciprocating one of the needleplates longitudinally a distance equal to the spacing of the needles, so that each of its needles is advanced alternately on opposite sides of the coperating needle of the other bank.- To this end oneof the plates, as 63, is mounted in longitudinal Iways 141, Fig. 3, formed .in the upper side rail 56 ofthe frame of the machine.
  • a shaft 142 is journaled within the shaftsection 102, which is made tubular for its accommodation, and projects loosely through the pattern-cylinder 83 and enters the shaftsection 103. It is so joined to the shaftsccas to permit independent longitudinal reciprocation of the latter. but insure its rotating ⁇ with the shaft.
  • a drum 145 There is mounted upon the extreme end of the lastnamed shaft-section a drum 145, carrying' two annular series and relatively staggered sets of radially-projecting studs 146.
  • a cam-block 147 secured, by means of suitable bolts, as 148, to a bracket-arm 150, attached to the frame of the machine, cooperates with the studs 146.
  • This cam is substantially diamond-shaped, having at both ends oppositely-inclined faces 151 152, and the cani is, so positioned as to engage the inner faces of both series of studs.
  • These two sets of studs members of each series are constantly in contact with the opposite faces of the cam, whereby the shaft 103 is caused to reciprocate longitudinally as it rotates.
  • the width of the cam 147 determines, of course, the extent of this reeiprocation and is shown as being suilicient to move Vthe shaft a distance equal to the spacing of the nee-
  • the shaft is provided with shoulders 143 1,44, engaging, respectively, the opposite ends of the bracket 104 within which the shalt is journaled, whereby the reciproreci rocation of the needle-bed63, to which the bracket 104 is attached.
  • the shaft 103 is comprised of two sections united by a coupling member 103, having oppositely-directed threaded shanks which screw into the two parts of the shaft, the body of this coupling member constituting the shoulder 143.
  • the trunk of the pattern-cylinder isv shown as being provided with a radiallyrojecting iiange 83, which is seated within a chamhered head 103 at the inner end of the shaft 103, and an annular cap.83, screwed upon the head 103b, overhangs the iiange 83".
  • the rotation of the shaft 142 is controlled by the pattern-ring 128 by the following described means: A u spring-pawl 154, swings upon the outer end of the shaft 142 ratchet-wheel 149, secured to the shaft.
  • annular groove ,156, Fig. 3 is cut in the shaft 102 adjacent its end and loosely receives the oint of a screw 157, set in the ratchet-whee 149, so as to maintain a uniform relation of the parts l when the pattern-cylinder 83 is reciprocated i upon the shaft 142.
  • a l disk 159 is fixed to the sleeve 111 adjacent to the cam-plate, and is provided with a plurality of recesses 161, Figs. 10, 15, intended j to receive a pin 160, reaching through the i cam-plate 153 and forced inwardly by means of a spring 162, extending over the end of the shaft and Asecured to a plate 163, also loosely mounted on the shaft and having a segmental recess through which the pin projects.
  • his plate 163 carries a wedge 164, Fig. 11, the point of which. may pass under the overturned head of the pin 160 and also radiallyprojecting studs 165, which are intermittently engaged by a stop-arm 166 toprevent the rotation of the plate.
  • This stop-arm is pivoted to the frame of the machine at 167, Aand its forward end rides on the periphery of the pattern-ring 12S land is held thereto by a spring 166.
  • the vracking may be produced at any desired point in the formation oi the fabric and continued during as many rows of knitting as may be required.
  • elevated portions 168 and 169 are formed on the pattern-ring to swing the stop-arm 166, so as to produce the racking during several successive strokes of the niachine just previous to the raisinv' of the swinging lever 124 and just after allowing it tofall.
  • the rotation ol the cani-plate 158 which swings the pawl-arin 153 to produce the racking of the needle-plate when in operation, bears a deiinite relation to that el the driving-shaft 72, the two are then positively connected by as system ot hearing, including the spur-wheel 117,l mounted on the sleeve 11.1, the idler 116, the pinion 115, and the skew-gears 114. These gears are so proportioned that the shifting o1E the needleplate always occurs at the end of a stroke ol.t the cams-carriage over the plate.
  • the needles of' one bank preferably the front bank, are only partially advancedby the cams of the cani-carriage as it moves in one direction, but are completely advanced by the same cams moving in the opposite direction.
  • the advancing cani-plate of one oi the cam-carriages, as 58, is movably attached to the lieorof the carriage, having pins 17() ln'olieeling through slots 171 in the iloorplate, and third pin 17 2 extending up ture in the ody ol" the to a point in line with the warnt Wheels 96.
  • This cam-plate is maintained in its advanced position by nieans of a small coil-spring 173; but the incline of the slots 171 being normal to the ca1n-face86 the needle-lugs 80, bearing against this 'face as the carriage moves forward, depress the caniplate to a position indicated by dotted lines in liig.
  • the stop 174 is adjustably secured to the arm 175 by means of set-screws 176, passing through slots 177 in the arm, so that it may be set to come in contact with the pin 172 when the worin-wheel 96 is in the position corres )ending tothe setting of the retractingcams tor the desired tension of knitting.
  • the stitch may be ol" any form, in which all the needles in action cast oil' a sin-- gle loop el" yarn at each stroke of the earncarriege, the Vietnameseailarjk ariety ol ⁇ Y stitch be- IOO IOC
  • T e lock-stitch produced by t 's rackin movement forms a more closely knitted abric than the half-cardigan stitch reduced without the rackin and is a suitab e 'gradation between this an the taut is again swung stitches of the cuff portion of the garment.
  • the fabric produced b the machine comprises aplurality of close y-knitted portions and intervenin portions of more open knitting ,j oined to t e closely-knitted portions at either end b connecting-webs of interlocked stitches.
  • T e fabric may be divided as desired -by cuttin through an of such ,webs, which prefcrab y are not ess than three courses of stitches in length, whereby if the cut is made through an intermediate one of such courses a sclvage ed fe at one side and a series of lock-stitches at the other side of the yshift the gearpattern-ring 128 and swung ins 165 by the action of crank-shaft.
  • Rotative connection is established between thc shaft-section 102 and the patterncylinder 83 by pins12, projecting from a flange 1132* on the end of the shaft-section into suitable sockets in the end of the trunk of the pattern-cylinder.
  • the cam-plate 158 takes the form of a star having three points and is so driven as to swing the paWl-arm 153 and shift the needie-plate 63 between each complete cycle (advance and return stroke) of the cam-carriages.
  • the pattern of thc knitting may be changed by substituting for this cam one of different form which will shift the needleplate more or less frequently.
  • Fig. 21 is shown such a cam 17 8, having six points and which may be employed to shift the needleplate at the end of cach stroke of the carriages.
  • a needle-bed in combination, a needle-bed; a cam-carriage co erating therewith; a yielding spring-returne needle- Aadvancing cam anda movable needle-retracting cam carried by the carriage; a crank-shaft having a wrist-pinyin engagement with the retracting-cam, and a stoparm for cngagingan appurtenance of the advancing-cani; a'nd means for oscillating the 2.
  • a needle-bed In a-knitting-machine, in combination, a needle-bed; a cam-carriage co erating therewith; a yielding spring-retorno needleadvancing cam, and a movable needle-retracting ⁇ cam carried by the carriage; a crank-shaft having a wrist-pin in engagement with the retracting-cam; an arm carvtoo ried by the crankshaft; :L stop for engaging an alaurtenanee of' the advancing-eani adjiista y secured to the arm; and means for oscillating the rank-shaft.
  • a needle-bed 3 a sliiitable needle-plat e mounted on the bed; :L shaft joiimalod in the needie-plate and longitudinally movable therewith; :L cam-wheel mounted on the shaft; :L fixed cannbloek cooperating with the eamwlieel; and means for rotating the shait.
  • a needle-bed in combination, a needle-bed; a shifteble needle-plate mounted on the bed; a eam-earriage eoperating therewith; u hanger secured to the plate; a longitiidinally-extensible slnilt comprising a pair of coaxial members connected to revolve t0- getlier, one thereof being journaled in the hanger :ind the other in the frame ofthe Inaehine, shoulders on the 'first-named shaft member for engaging the hanger, means for longitudinally shifting said shait member, an independently ievoluble pattern cylinder mounted on the shaft :md connected to shift with the shiitnble shai't member, a sleeve inv closing the seeoni'l-nan'ied shaft member and operatively eonneeted with the pattern-oy inder to impart i'otatioiLthereto; and means for turning the sleeve.
  • a reeiproeatory needle-plate g a reeiproeatory pattern-eylinder; and means for causing the simultaneous and uniform n'iovement of Said members.
  • a knitting-machine in efnnbination, a pattorn-eylindei; a pair of eoaxial shafts carrying the eylinder; means for independently rotating sue-li shafts; and means aetn- :Lted by one of the shafts l ⁇ or causing its reeipioeiLtion.

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  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Description

PATENTES) DEC. llE 1906.
' W. C. WHTCUMB.
KNITTING MACHINE.
APPLIGATION FILED MAR.31,1905.
7 SHEETr-SHBET l.
1,838,065 PATENTED DEG. 1L; 1906.
W. C. WILTUUMBs Y KNTTNG MCHNB,
APPLIUATION FILED MAR. 31, 1905.
LTA 7 SHEETS-*SHEET 2.
PATENTE) DEG. 11, 190s.
7 SHEETS-SHBET 3.
W. C. WHTGoMB. KNITTING MACHINE.
APPLIOATION FILED MAR.31.1905.
PATENTE) DEG. 11,1190-5..
W. C. WHTGOMB. KNTTING MACHINE.
APPLIUATION ULEB MAR.31.1905.
APPLICATION FILED MAR.31,1905,
7 SHEETS-SHEET m, 338,965. PATENTEDDEG. l1, 1906.
W. C. WHITGGMB. -KNXTTING- Mmmm. APPLIUATION PILED MAB. 3].. 1905.
Lamm
Imran sTArns PArENT OFFICE.
WILLIAM C. WHTCOMB, OF CHICAGO, ILLNOS, ASSIGNOR TO GEORGE D.
WHITCOMB COMPANY, A CORPORATION or ILLINOIS.
KNiTTiNG-MACHINE.
Specification of Letters Pat ent. Application ned March 31,1905. serial n. 253,071.
Patented Dec. 11, 1906.
illustrated in the accompanying drawings,
forming a part thereof. v C
The invention relates to knitting-machines, and particularly to those which produce a fabric comprising a' succession of articles adapted to be separated.
One of the objects of the invention is to provide improved means for the formation of a lock-stitch, and, as the machine is organized, particularly for forming a locke stitch as the connecting-web between successive articles, so that when vseparated each may have a selvage edge.
A further object is to provide -improved means for forming a half cardigan-stitch and for changing from this to other forms of stitches.
Further minor objects will be in the descri )tion of the machine.
' The inteiilocked stitches are formed by what is known in the art as rackin lt consists in alternately shifting one oft Ie nee- (lle-plates back and forth longitudinally with developed reference to the other between several suc-- ceedingforward and return strokes of the camcarriages. lIn this way each of the needles of one set is advanced to receive the yarn alternately into each of two adjacent interspaces of the other set of needles. ln the machine to be described this racking movement is produced during the formation of several rows of knitting in the formation of the body of each garment, as well as at the point where the articles are to be separated, in order to give a more finished appearance to the fabric.
The invention. consists in the construction and arrangement of parts to be hereinafter described, and which are illustrated in the accompan ying drawings, in which-` Figure 1. isa side elevation of the machine. Fig. 2 is a detail cnd elevation of the same. vertical section Fig. 4 is a detail on the line 3 3 of Fig. 2.j y
of Fig. 3. Fig. 5
cross-section on the line 4 L1 is an inclined elevation as viewed from the line 5 5 of Fig. 2. Fig. 6 is a bottom plan view of one of the cam-carriages. Fig. 7 is a sectional view of the same on the line 7 7 of Fig. 8. Fig. 8 is a detail cross-section of the machine on the line 8 8 of Fig. 5. Fig. 9 is a detail section on the line 9 9 'of Fig. 8. Fig. 10 is a section taken on the line 10 10 of Fig. 2. ig 11 is a detail end elevation ofthe machine as viewed from the line 11 l1 of Fig. 1`0. Fig. 12 is a detail of Fig. 2, showing the parts in a different position. Fig. 13 is a sec- ]4 is similar to Fig. 10, but showing the arts lin a different posit-ion. Fig. 15 1s a etail section on the line 15 15 of Fig. 14. Figs. 16 and 17 are sectional viewsl on the lines 16 16 and 17 17, respectively, of'Fig. 3. Fi ..18 is a detail section on the line 18 18 of 2Fig. 3. Fig. 19 is a sectiona view taken on the line 19 19 of Fig. 18. Fig. 20 is a detail section on the line 20 20 of Fig. 2. Fig. 21 shows a modification in the construction, and Fig. 22 shows in detail some of the parts illustrated in Fig. 3. l 1
In the drawings there is shown a straight type of knitting-machine having vtwo copernot included in the invention are shown conventionally, and others which have no bearing at all upon the operation of the parts inentirely.
The machine is carried by a .frame com- -prising uprights, 51,.and 52, the ioorplate 53, lower side rails 54 55, and upper side rails 56 and 57. Cam-carriages are shown at ,58 and 59 and a frame for a yarncarir at 60, these parte being adapted to re. ciprocate over the needle-plates 63 and 64. For this purpose rods 61 and 62 are joined to the cani-carriages and are 'united by a crosshead 65, which travels in ways 66, formed in thel upper side rails 57. This cross-head is driven by a mechanism which in its simplest formmay consist cfa swinging lever 67, pivoted to the cross-head and fulcrumed at the base of the machine. As the cross-head 65 moves in a straight line,- it is important that the fulcruin for the lever 67 be movable, and to this end a link 68 is pivoted to the lower end of the lever and to a floor-hanger 69, secured to the 'floor-plate 53. The lever 67 is i actuated by means of a pitman 70, driven by l a crank 7l on a shaft 72, journaled in the i lower side rails 54 55.
At theback of the machine a large gear is ating banks of needles;y Some of the partsv volved in the invention have been omitted tionalview on the line 13 13 of F ig.,10. Fig.
mounted-upon this shaft, which -meshes`with a pinion 74 upon a counter-shaft 75, which provided with the usual belt-pulleys 76,. The
-counter-shaft 75 is extended through to the front of the machine and provided with a hand-wheel 77, which finds coiwenicn t use in setting up the machine.
The needle-plates 63 and (54 are provided with the usual transverse slots or ner-uile-` Ways 78, in which are fitted needles 79 of usual forni, each'having a cani-engaging lug 80 extending upwardly into the path of the cam-carriage and resting upon. a needle-supporter 81 which is provided with a downwardly-projecting finger 82, riding upon a pattern-cylinder S3, having elevated and deressed portions, as 84, for raising and lowering the needle into and out 'of action Each of the earn-carriages 58 and 59 is )rovided with an advancing cani-plate 85, which has double-inclined cani-surfaces 86 and. S7 for engaging the needle-lugs when moving in either direction. There are also provided for each carriage two retracting- cams 88 and 89, which, as their position determines the tension of the knitting, are niovably attached to the cam-carriages by means of pins 90, moving in slots 91 in the floor of the carriage. Each of these retraeting-eams is slotted as usual, as shown at 92, this slot receiving a wrist-pin 93 upon a crank-disk 94 at the. base of an upright shaft 95, journaled in the frame ofthe carriage. This shaft is provided at its upper end with a worm-wheel 96, meshing with a worm 97, journaled in ya bracket-arm 98, rising from. the back of the carriage and "running upon a square shaft 99, extending over the needle-plate for its entire length and journaled in brackets 101, rising from the frame of the machine.
The square shafts 99 and the pattern-cylinder 83 are intermittently driven, as may be desired to produce the required pattern. in the fabric, by means of a pattern mechanism carried by the 'end vupright 50 of the frame of the machine. The pattern-cylinder 83 is extended in either direction by. shaft- sections 102 and 103, which are journaled, respectively, in the end plate 50'and in. a hanger 104, depending from theinner end of the needle-plate, the cylinder being free to rotate independently of the shalt-section 103,' but movable longitudinally tlmrewith.
ApaWl-arin .105, Fig'. 16, carrying a springlpawl 106, is rotatably mounted on the outer end of the' shaft 102 and col'ierates with a -ratcliet-wheel 107, fixed to such shaft. A
dog 108 is pivoted to the fra-nie of the inachine and engages the teeth ol' the ratchetwl'ieel 107 to prevents its turning in the opposite direction. A cani-plate 109 is provided for swinging the paul-arms so as to advance the patterii-cylinders 8S. This cam-plate is mounted upon a hollow sleeve 111, supportl ed-by a stud 112, securely fixed. in the frame of the machine. A spring 110 reacts between the pawl-arins 105.130 insure their engagement with the face of the cam-plate 109.
The hollow sleeve 111 and its cam-plate 109 are driven from the main driving-shaft of the machine. As the mechanism for transmitting the motion forms no part of the present invention, it is conventionally shown to be as follows: A shaft 113 extends along the machine from the u right 51 and projects through the face of tie end plate 50. This shaft is driven from the shaft 72 by means of a pinion 115, which. through the medium of an idler 116 drives a gear 117 keyed to the hollow shaft 1.11.
Each of thesqua e shafts 99 carries on its forward end a pinion 118, which meshes with a gear-rack 119, extending across the end of the machine and supported by guides projecting from the brackets 100. This gearrack is joined by a link 120 to a bell-crank lever 121, pivoted to the frame of the .machine at 122 and operatively connected by a tension-rod 123 to a swinging lever 124. From the forward end of this lever a cam-engaging linger 126 projects into the path of cani-blocks 127, secured vto the face of a pattern-ring 12S andadapted. to swing the lever Le and reciprocate the gear-rack 119 when they come into engagement with the finger 126. A spring reacts between the frame of the machine and the lever to return it to its normal position when its forward end becomes disengaged from the cam-block.
The pattern-ring 128A is driven in the following mairner: 'A beveled gear. 129 is formed upon the inner face of the gear 117, carried by the hollow sleeve 111, and meshes with a gear 130, carried by a vertical shaft 131, running in suitable boxes secured to the inner face of the end plate 50 and carrying at itsy lower end a worin 132, actuating a worinwheel 133, mounted upon the inner end of a short horizontal shaft 134, journaled in and extending through. the plate 50. A pinion is secured'to the outer end of this shaft surface of the pattern-ring 128. plate 1.36, recessed to receive the pinion 135 and having a smooth riln, forms a bearing for the apexes of the gear-teeth of the patternring 128. This crescent-plate is secured by a bolt 13S to a bar 137, mounted on the end plate 50 :1nd having a T-slot for receiving the head of the bolt 1.38. The crescent-plate is provided with a shoulder 139, between which pattern-ring 12S runs.
For knitting garments of different sizes it necessary to provide pattern-rings, as 128, of greater or iess circumference, and this construction permits the interchanging of rings skew-gears 114' and carries on its forward end` IOO and engages gear-teeth formed on the inner A crescentand a large washer 14.0 on'the bolt 138 the seance .For each patterncrescent-plate 136 of various dimensions. ring there 1s provided a are spaced apart so that j. cation of the shaft causes the desired tion by a key 142a 'dles the bar 137 at any such point as will be found necessary for the proper engagement of the teeth of the pinion 135 and the internal gear of the pattern-rin 'As so far described the machine presents no new features, the automatic means for shifting the'retracting-cams of the cam-carriages for changing the tension of the knitting and the nieansfor rotating the patterncylinder 83 being shown and described in Letters Patent No. 670,159, granted to William K. Millholla'nd and Ulysses G. Lee.
As previously described, a lock-stitch is formed by reciprocating one of the needleplates longitudinally a distance equal to the spacing of the needles, so that each of its needles is advanced alternately on opposite sides of the coperating needle of the other bank.- To this end oneof the plates, as 63, is mounted in longitudinal Iways 141, Fig. 3, formed .in the upper side rail 56 ofthe frame of the machine.
A shaft 142 is journaled within the shaftsection 102, which is made tubular for its accommodation, and projects loosely through the pattern-cylinder 83 and enters the shaftsection 103. It is so joined to the shaftsccas to permit independent longitudinal reciprocation of the latter. but insure its rotating` with the shaft. There is mounted upon the extreme end of the lastnamed shaft-section a drum 145, carrying' two annular series and relatively staggered sets of radially-projecting studs 146. A cam-block 147, secured, by means of suitable bolts, as 148, to a bracket-arm 150, attached to the frame of the machine, cooperates with the studs 146. This cam is substantially diamond-shaped, having at both ends oppositely-inclined faces 151 152, and the cani is, so positioned as to engage the inner faces of both series of studs. These two sets of studs members of each series are constantly in contact with the opposite faces of the cam, whereby the shaft 103 is caused to reciprocate longitudinally as it rotates.
The width of the cam 147 determines, of course, the extent of this reeiprocation and is shown as being suilicient to move Vthe shaft a distance equal to the spacing of the nee- The shaft is provided with shoulders 143 1,44, engaging, respectively, the opposite ends of the bracket 104 within which the shalt is journaled, whereby the reciproreci rocation of the needle-bed63, to which the bracket 104 is attached.
F or convenience in assembling the parts the shaft 103 is comprised of two sections united by a coupling member 103, having oppositely-directed threaded shanks which screw into the two parts of the shaft, the body of this coupling member constituting the shoulder 143.
It being essential that the 83 shall rotate independent section 103 but reci rocate longitudinaliv therewith, in order 't at itsrelation to the needles be not disturbed in making the lockattcrn-cylinder f of the shaftstitch, the trunk of the pattern-cylinder isv shown as being provided with a radiallyrojecting iiange 83, which is seated within a chamhered head 103 at the inner end of the shaft 103, and an annular cap.83, screwed upon the head 103b, overhangs the iiange 83". The rotation of the shaft 142 is controlled by the pattern-ring 128 by the following described means: A u spring-pawl 154, swings upon the outer end of the shaft 142 ratchet-wheel 149, secured to the shaft.
portion of the ratchet-wheel is cut away,
as indicated at 155, Fig. 3, to receive the end of the hollow shaft 102. n annular groove ,156, Fig. 3, is cut in the shaft 102 adjacent its end and loosely receives the oint of a screw 157, set in the ratchet-whee 149, so as to maintain a uniform relation of the parts l when the pattern-cylinder 83 is reciprocated i upon the shaft 142.
The free end of the pawl-arm rides upon the periphery of a cani-plate 158, Figs. 3 and 17, which is loosely 4mounted on the constantly-driven sleeve 111, but may be made to rotate with it in the following manner: A l disk 159 is fixed to the sleeve 111 adjacent to the cam-plate, and is provided with a plurality of recesses 161, Figs. 10, 15, intended j to receive a pin 160, reaching through the i cam-plate 153 and forced inwardly by means of a spring 162, extending over the end of the shaft and Asecured to a plate 163, also loosely mounted on the shaft and having a segmental recess through which the pin projects. his plate 163 carries a wedge 164, Fig. 11, the point of which. may pass under the overturned head of the pin 160 and also radiallyprojecting studs 165, which are intermittently engaged by a stop-arm 166 toprevent the rotation of the plate. This stop-arm is pivoted to the frame of the machine at 167, Aand its forward end rides on the periphery of the pattern-ring 12S land is held thereto by a spring 166. v
Normally the free end of the arm projects into the path ofthe lugs 165,' but the patternl ring is provided with elevated portions 168 160, Figs. 2, 12, which swing it out of their path. When rotation of the plate 163 ,l is prevented by contact of the stop-arm with th'c ,pins 165, the forward movement of the cani-plate 153 carries the head of the' pin 16() up the inclined face of the wedge 164, so as to withdraw its inner end from one of the repawl-arm 153, having a and cooperates with a IOO Wedge-block and insert thebpoint ofthe pin thro gh a slotted apf- 160 into one of the recesses o1' the disk 159,
and so cause the cam-plate 158 to rotate With the sleeve 111. v
By giving the periphery ol the patternring 12S the necessary conformation the vracking may be produced at any desired point in the formation oi the fabric and continued during as many rows of knitting as may be required. In the machine as illustrated elevated portions 168 and 169 are formed on the pattern-ring to swing the stop-arm 166, so as to produce the racking during several successive strokes of the niachine just previous to the raisinv' of the swinging lever 124 and just after allowing it tofall.
The rotation ol the cani-plate 158, which swings the pawl-arin 153 to produce the racking of the needle-plate when in operation, bears a deiinite relation to that el the driving-shaft 72, the two are then positively connected by as system ot hearing, including the spur-wheel 117,l mounted on the sleeve 11.1, the idler 116, the pinion 115, and the skew-gears 114. These gears are so proportioned that the shifting o1E the needleplate always occurs at the end of a stroke ol.t the cams-carriage over the plate. Furthermore, te insure an instantaneous shitting o1' the needle-plate While the cam-carriage is at the end of its stroke the 'forward cam-faces of the cam-plate 15S have a sharp incline or Pitch, whereby the outward or e'll'ec-tive stroke of' the paWl-arm 153 is exceedingly rapid. 1
As before mentioned, provision is made `for knitting a halt-cardigan stitch duringr thel formation. of a part el' each articleI and for changing to another lorm ol stitch from that used m the inaJor part ol' the garment. lVhen.
knitting the half-cardigan stitch, the needles of' one bank, preferably the front bank, are only partially advancedby the cams of the cani-carriage as it moves in one direction, but are completely advanced by the same cams moving in the opposite direction. To
this end the advancing cani-plate of one oi the cam-carriages, as 58, is movably attached to the lieorof the carriage, having pins 17() ln'olieeling through slots 171 in the iloorplate, and third pin 17 2 extending up ture in the ody ol" the to a point in line with the warnt Wheels 96. This cam-plate is maintained in its advanced position by nieans of a small coil-spring 173; but the incline of the slots 171 being normal to the ca1n-face86 the needle-lugs 80, bearing against this 'face as the carriage moves forward, depress the caniplate to a position indicated by dotted lines in liig. 6 and ride over its up er edge 85a Without being completely a vanced. As soon, however, as all of the needle-lugs have passed over the cam-plate it is advanced by the action of the spring 173, and as the slots 1.71 are parallel to the cam-face 87 the camplate is not depressed during the return stroke. By this arrangement ol the advancing-cam the needles of one side of the machine are advanced only far enough during the forward stroke to receive a new strand of yarn without passin the loops already held in their hooks over tghe latches. No stitches are therefore cast oil when the needles are depressed by theL retracting-cam 8S, but tWo strands of yarn are held in the hooks to be `stroke of the carriage.
When the retracting-cains 88 and 8'9 are shifted to the forward osition (indicated by dotted lines in Fig. 6) tor increasing them tension of the stitches incident to the formation ot the more closely knitted partsof the garment, a contacting piece 1711, Fig. 9, carried by an arm 175, projecting from one of the worm-Wheels 96, is brought into the path of the pin 17 2 to prevent the depression et the advancing-cam plate-S5 by the pressure of the needle-lugs against its forward tace. lVith'the cams in this position the needles ci' both sides of the machine receive a single strand of yarn eac-h time they are advanced and cast ell a single stitch each time they are retracted. This relative arrangement of the mechanism for shifting the retracting-canis and that for locking the'advancing-cam is of course not essential to the operation of either.
The stop 174 is adjustably secured to the arm 175 by means of set-screws 176, passing through slots 177 in the arm, so that it may be set to come in contact with the pin 172 when the worin-wheel 96 is in the position corres )ending tothe setting of the retractingcams tor the desired tension of knitting. l
The operation of the machine as illustrated is as follows: While the cam-engaging linger 126 et the swinging lever 124 rides upon either of the cam-blocks 127, the lretractingcams S8 S9 are yshifted to the dotted-line position ofFig. 6, and the stop 174 is thrown into the path ol" the pin 172 to prevent the retraction of the cam S6. A fabric is new `formed composed of closely-knitted stitches, and which may be the cuill portion o l" a garment. The stitch may be ol" any form, in which all the needles in action cast oil' a sin-- gle loop el" yarn at each stroke of the earncarriege, the partirailarjk ariety ol`Y stitch be- IOO IOC
swings the lever 124, so as to eeaocs rack 119. This by rotating the shafts 99 and 100 changes the setting of the parts of the cam-carriz'iges to that shown in full lines in the various figures of the 'drawings' and removes the stop 17 4.- from the path of the pin 112. The earns now operate uplon the needies and are acted on by them in such a way as to produce the half-cardigan stitch previously4 described and` a more openI fabric. During the formation of this part of the garment, and preferably immediately after the change is made to this form of stitch, the stop-arm 166 is engaged by one of the elevations 168 of the out of the path of the pins 165. This causes the racking movement to begin, and it Icontinues during the formation of severalrows of knitting or -until the elevated portion y168 passes out from under the point of the stop-arm 166, and this arm i'nto the path ofthe the s ring 166". T e lock-stitch produced by t 's rackin movement forms a more closely knitted abric than the half-cardigan stitch reduced without the rackin and is a suitab e 'gradation between this an the taut is again swung stitches of the cuff portion of the garment.
After the elevation 168 passes out of en agement with the sto -arm 166 and until t is is reached by one ol the elevations 11,69 of the pattern-ring a loosely-knitted fs; fc ccmnosed of half-cardigan stitches is produced. cveral other rows of interlocked stitches are formed when the stop-arm 166 is swung out of the path of the pins 165 by the elevated portion 169 of the pattern-ring, and in the machine organized, as shown, immediately after this elevated portion passes beyond the point of the stop-arm the lever 124 is swging y the cam-block 127 to'change the setting of the parts of the cam-carriages for again forming the more closely knitted stitch.
It Will be understood from the foregoing that the fabric produced b the machine comprises aplurality of close y-knitted portions and intervenin portions of more open knitting ,j oined to t e closely-knitted portions at either end b connecting-webs of interlocked stitches. T e fabric may be divided as desired -by cuttin through an of such ,webs, which prefcrab y are not ess than three courses of stitches in length, whereby if the cut is made through an intermediate one of such courses a sclvage ed fe at one side and a series of lock-stitches at the other side of the yshift the gearpattern-ring 128 and swung ins 165 by the action of crank-shaft.
cut results. It has been found convenient to separate the fabric by cutting through all of those connecting-webs of interlocked Y stitches is of course determined by the conformation ofthe pattern-wheel, which may be changed as desired.
Rotative connection is established between thc shaft-section 102 and the patterncylinder 83 by pins12, projecting from a flange 1132* on the end of the shaft-section into suitable sockets in the end of the trunk of the pattern-cylinder. When the cylinder 83 isjlongitudinally reciprocated, there is a movement of the cylinder-trunk on the pins; but the reciprocation of the cylinder is not sufficient to cause these parts to be separated. v 4
In the preferred construction of the machine the cam-plate 158 takes the form of a star having three points and is so driven as to swing the paWl-arm 153 and shift the needie-plate 63 between each complete cycle (advance and return stroke) of the cam-carriages. The pattern of thc knitting may be changed by substituting for this cam one of different form which will shift the needleplate more or less frequently. In Fig. 21 is shown such a cam 17 8, having six points and which may be employed to shift the needleplate at the end of cach stroke of the carriages. When the needle-plate is so shifted, a fabric of interlocked stitches is produced, the form of the stitches having a peculiar ornamental effect.
I claim as my invention- 1. In a knitting-machine, in combination, a needle-bed; a cam-carriage co erating therewith; a yielding spring-returne needle- Aadvancing cam anda movable needle-retracting cam carried by the carriage; a crank-shaft having a wrist-pinyin engagement with the retracting-cam, and a stoparm for cngagingan appurtenance of the advancing-cani; a'nd means for oscillating the 2. In a-knitting-machine, in combination, a needle-bed; a cam-carriage co erating therewith; a yielding spring-retorno needleadvancing cam, and a movable needle-retracting `cam carried by the carriage; a crank-shaft having a wrist-pin in engagement with the retracting-cam; an arm carvtoo ried by the crankshaft; :L stop for engaging an alaurtenanee of' the advancing-eani adjiista y secured to the arm; and means for oscillating the rank-shaft.
3. In a knitting-inaehii'ie, in conibiinit ion. a needle-bed; a eannearriage cooperating therewith; a yielding 'pring-retiirned needleon and turning with such shaft :ind carried by the cani-carriage; :L pinlion on the shalt; a rack engaging the pinion; a swinging lever for reciprocating the rack having :L eem-engaging toe.; a pattern-wheel having eam- -surfaoe for swinging the lever g and means for rotating the petternwheel- 4. In a knitting-machine, in `combination, a needle-bed 3 a sliiitable needle-plat e mounted on the bed; :L shaft joiimalod in the needie-plate and longitudinally movable therewith; :L cam-wheel mounted on the shaft; :L fixed cannbloek cooperating with the eamwlieel; and means for rotating the shait.
5. In a knittingmmehine, in eombinaLtion, a needlebed; :L shiitnble `needle-plate mounted onthe bed; a shalt journnled in the needle-plate and longitudinally movable therewith; a drinn mounted on the shall.; cam-engaging pins secured to the drinn; :L eambloek adjustably fixed and eoi'iperatiug with theI pins; and means` for 'rotating the simil',
6. In a knittin(1f-machine, in eombination, a needle-bed; :L sluitable needle-plate mount ed on the bed; :L shaft jouinaled in the needle-plate and longitudinally movable therewith; a drinn mounted on the shaft ram-engaging pins secured to the drum; :L caniblock ai'ijustably fixed in position; a ratchet'- wheel .fixed to the shaft; :L pLLwl-arm rotatable on the shalt g a si i'ii'igp:iwl carried bythe arm and engaging the 'rateiiet-wheel; a cani for swinging the iniwbarin; and .means for rotating the eam.
7. lin :L knitting-nmolline, in combination, :L need le-bed a shiftable, needle-plate mount ed on the bed; :L shalt iournaled in the needle-plate and limgitudinallymiovable therewith; a drum mounted on the shalt; eamengaging pins seenred to the drum; :L eambloek. adjust-ably fixed in posit ion; :L ratelieiwheel iixed to the shaft; a 1parti-arm rotntable on the shaft; a spring-pawl carried by ilie arm and engaging the ratehet-wheel; :L slial't journaled in the frame ol' (he marlilne and driven from iis rotating paris; :i ram loosely mounted on tbe slia'l't vl'or swinging the pawlarm; :L disk seen red to the shalt adjai-ent llie ses, eee
wedge-plate for iii-.drawing the pin; and :Ln
atop-a rm i or engaging tle wedge-pini: e.
8. ln :L knitting-machine, in eoinbination, :i needle-imi; a shii'table needleqihLt-e mounted on the bed; :i shaft joinnaled in tlie needleplate :ind longitudinall)T movable therewith; :i drum mounted on the Shaft; eem-engaging pins seein-ed to the drinn; :L cam-block adjustably iiXed in position; a ratehet-wheel fixed to the shaft; :L pawl-nrin rotatable on the shaft; a spring-paxil carried by the arm and engaging the ratchet-wheel; a shaft jonrnaled in the frame of the machine and driven from its rotating parts; :L eani loosely moiint ed on the shaft for swinging the pawl-arin; a disk secured to the shaft adjacent the eain; a pin mounted in the eem for engaging the disk; a spring for seating the pin; :i wedge- )late for withdrawing the pin; a stop-arm l'or engaging the wedge-plate :L Cam-ring for swinging the stop-arm; and means for rotating the comming.
9. In :L knitting-machine, in combination, a needle-bed; a shifteble needle-plate mounted on the bed; a eam-earriage eoperating therewith; u hanger secured to the plate; a longitiidinally-extensible slnilt comprising a pair of coaxial members connected to revolve t0- getlier, one thereof being journaled in the hanger :ind the other in the frame ofthe Inaehine, shoulders on the 'first-named shaft member for engaging the hanger, means for longitudinally shifting said shait member, an independently ievoluble pattern cylinder mounted on the shaft :md connected to shift with the shiitnble shai't member, a sleeve inv closing the seeoni'l-nan'ied shaft member and operatively eonneeted with the pattern-oy inder to impart i'otatioiLthereto; and means for turning the sleeve.
10. In a knitting-machine, in combination, a reeiproeatory needle-plate g a reeiproeatory pattern-eylinder; and means for causing the simultaneous and uniform n'iovement of Said members.
11. in a knitting-maehine, in combination, a needle- )lato :L pattern-eylindei'; means Jfor causing tlie simultaneous and vuniform reciproeation of such members; and means for rotating the eylinder independent of its reciprooation.
12. ln a knitting-machine, in efnnbination, a pattorn-eylindei; a pair of eoaxial shafts carrying the eylinder; means for independently rotating sue-li shafts; and means aetn- :Lted by one of the shafts l`or causing its reeipioeiLtion.
13. ln :L linil lii'ig-maehine, in eombiiiation, :L reciprocalory needle-plate; :L constantlydriven member; means l'or reviproeating the needle-plato :nid being normally engaged with the driven member; n pnl tern-ring and IOO mafias 111021115; a-oziifited by the patteribring for dismmiimtiiig tlm plii1.oi'ecip1ocaling n'ioolmuism from ille lrivoii member.
H. .ln a lmiLLiug-mmfliine, in combination, n noodle-bwl; n mun-carriage cooperating llimmx'iizli; fi. yielding spring-roturned noedlw advancing' com mui n. noodlo-reti'actiiig @um carried by tho ourriiigo; :L shaft mounteilon the carriage and having a. Stop-arm movable imo the. piitli of :in appurteinonce of the aclvmioing-ceini; a Wi'irni-Wlwol ixxountod on the sha1" L; i slial'ty supported over the needle-bed 5 i worin sliding on :incl turning Wirh the. lasti'iaimod shaft. and carried by the cmu-carriage g a, pinion oli the .last-rimmed shaft; a-rack enl @aging tho pinion; a Swinging lever for reciprocating the mok having a, Gmibergagmg toe; a pattern-wheel haring a cam-surface for swinging 'tho lever; and means for rotabing the. patteri1-iiflioo-ll5. ii L knitting-machine, in oorribiiotion, a needle-bed; a. reoiprocatory iieefllelate ii'iounterl on the bed; a cam-@anlage coperating therewith; :i longitudinally-extonsible sha-ft comprising a pair of coaxial members connected to revolve together, one thereof being journalod in the neoclleqalate and the other in tho bed an actuating-Cam carried by the first-.named shaft member; and means carried by lle bed for revolvinj the shaft.
` WILLIAM C. W {ITCOMB iti'iesses 1 W. S. TURNER, CHARLES B. GILLsoN.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052108A (en) * 1961-05-03 1962-09-04 Lumsden George Method of and machine for making knitted fabric
US3869881A (en) * 1971-07-28 1975-03-11 Sentis Anfruns Method and machine for making toe pieces for socks and stockings
US4022033A (en) * 1975-03-26 1977-05-10 Universal Maschinenfabrik Dr. Rudolf Schieber Kg Shift device for the needle bed of a straight knitting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052108A (en) * 1961-05-03 1962-09-04 Lumsden George Method of and machine for making knitted fabric
US3869881A (en) * 1971-07-28 1975-03-11 Sentis Anfruns Method and machine for making toe pieces for socks and stockings
US4022033A (en) * 1975-03-26 1977-05-10 Universal Maschinenfabrik Dr. Rudolf Schieber Kg Shift device for the needle bed of a straight knitting machine

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