US1661085A - Knitting machine - Google Patents

Description

Feb. 2s, 192s.

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N. J. PERRY KNITTING IACHINE Original Filed Dec. 22. 1919 11 Sheets-Sheet l1 5mm/woz 1 hapqleanJ Perry M www Patented Feb. 28, 1,928.

, UNITED STATES 11,661,035 PATENT(l OFFICE.

NAroLEoN J. PEEEY, or NASHVILLE, TENNESSEE, Asslenoa To" MAY nosTEnY MILLS,

OF NASHVILLE, TENNESSEE, A CORPORATION 0F TENNESSEE,

` KNITTING MACHINE.

`Application inea December 22, 1919, serial No. 346,651. Renewed my 22, 1927.

My said invention relates to a pattern mechanism forknltting machines and consists 1n the combinations and arrangements of elements hereinafter described and par-k ticularly set forth m the` accompanying claims. l

The invention has for its purpose to provide a knitting machine convertible to `knit plain, ribbed 1, or` plain and ribbed` tothe end that articles of apparel (particularly hosiery) may be completely knitted fromthe toe to the top of the leg without requiring ,the transfer ot the articlefronn one machine Vto another, as is now the practice. l

The invention has for its further purpose to provide an attachment for plain knitting machines adapted to be brought into operation as required to supplement plain knitting with rib knitting, or to be used independently for rib knitting alone; and wherein the attachn'ient is operable through the mechanism which actuates the plain knitting. 4 i i l Another purpose of` thelinvcntion is to equip a plain knitting machine with appa# ratus for rib knitting wherein said ribbing apparatus is automatically set to be 4worked through that means which automatically operates the plain knitting machine `to change from circular to reciprocable knitting,` Ior vice versa. l A

.The invention further contemplates the provision ofa pattern form that` is actuated through the aforesaid control. of the 'plain knitting machine, that will bring the rib knitting mechanism into operation to knit ribbing at the proper periods in the manu-` facture of the article, and which is-adapted to be altered or changed at'will.' V l l The invention further proposes to provide the machine with devices which will automatically operate to. disconnect the means operating the knitting head from the drive in the event ot breakage of one or more of. the needles, or by theaccumulation of yarn in the knitting headvrom whatever cause. y

The invention, as disclosed herein, is adapted for attachment to any` standard type of circular knitting machine, and the range ot adjustment, timing, and combinations ot the several elements, 'is such that the equipped machine is capable ot manufacturing a wide variety of lstockings byplain ribbed circular or reciprocable knitting, or any combination of these. i l

The machine embodies the construction dlsclosed in my co-pending application'tor U. S. Patent Serial No. 146,917, dated Feb. 6, 1917, of which this application is a continuation as to a portion of all common subject mattei' and proposes further improve- `ments on the construction `shown therein.

The invention is disclosed by way of illus-V l tration `in the accompanying drawings, wherein i f i Figure 1 1s a front elevational viewot'i` the machine complete.

Figure 2, a top plan View ot the same,

Figure 3, a plan view of the rotatinghead i taken on line 3-8 of Figure 1,

Figure 4, a `transverse sectional view taken on the line 4-4 of Figure 1, i i l Figure 5, a sectional view on the line 55 of Figure 1,

Figure 6, a horizontal sectional view taken on the line 6-6 of Figures 1 and It, and with certain parts omitted,

Figure 7 a fragmentary plan view `otthe head showing the automatic stop device,

Figure 8, a cross section through a portion of the head showing the automatic stop device and apart of the fabric take-up device, Figure 9, a side elevation of the operating mechanism of the fabric take-up,`

Figure 10, the operating pawl for the pat; tern wheel,

Figure 11, a central sectional view of the dial and dial cap taken on the line 11e-11 of Figure 13,

Figure 12, a similar view taken on the line `12-12 of Figure 13.

Figure 13, an inverted planview of the dialcap, 4

Figure 14,11 diagrammatic view, partly broken away,` of the dial and showing the needles in different positions of operation,

, Figure 15, a detail view of a cam element of the dial cap, i

Figure 16, a detail sectional view showing the tensioning device for the movable guide cams, y i

Figure 17, an enlarged view otone of the dial cap cam actuating devices, i

Figure 18, a similar view of the other dial cap cam actuatingdevice,

Figure 19, a top plan view of the device shown in Figure 18` Figure 20, a detail. perspective view of the controlling portion of the automatic stop device of the machine, and

. journalled on the shaft 36.

Figure 21, a detail view of the operative portion of said stop device.

Referring to the construction in further detail, and wherein like reference characters indicate corresponding parts in the lseveral figures, 25 designates the frame of a standard plain knitting machine of the type illustrated in the patent to Mayo No. 726- 178, grant-ed April 21, 1903, having a driving shaft 26 journalled therein and adapted to be driven from a suitable source of power by a pulley arrangement 27. Said driving shaft is vfitted withclutch elements 28 and 29, for rotating the knitting head 30, for circular knitting through the bevel gears 3l (only one being shown); or said knitting head may be oscillated for reciprocable knitting, through the clutch elements 29 and 33. The transmission for operating the knitting head, to knit by reci n'ocable knit-ting, comprises a pinion 34 coup ed to rotate with the shaft 26 through the clutches (29 and 33) and meshes With a larger pinion 35 Said pinion'35 carries a wrist-pin 37 connected with the connecting-rod 38 to operate the gear-segment 39; and said segment meshes with the gear wheel 40 to impart oscillation thereto and this being connected With imparts like motion to the bevel gear 31 and operates the knitting head for reciprocable knitting. The clutch element 29 is actuated to connect with either of the clutch elements 28 or 33, both normally free to rotate on the shaft 26, for imparting -rot-ation or oscillation to the knitting head for circular or reciprocable knitting, through the clutch arm 41 fulcrun'ied on the frame at 42 and operated through engagement With the cam Wheel 43 which is fixed to aV cam shaft 44 mounted on the frame 25.

The cam Wheel 43 is adapted to be operated with a. step-by-step movement from the driving shaft, through the following mechanism; a hub 46 on the :am shaft 44 has a ratchet wheel 45 loosely mounted thereon and a sprocket Wheel 47 is fixed to Ythe ratchet, as in the Mayo patent. A chain 48 travels on this sprocket and said chain constitutes the timing element ot' the machine. The ratchet wheel 45 is intermittently turned by the pawl 49, actuated by the crank arms 50, forming a part ot the hub 53 ot the segment 39, the pawl being mounted between them on a pivot 252. The mechanism thus far described operates only the ratchet wheel 45 and the sprocket wheel 47, carrying the chain 48, While the shaft 44 and the cam Wheel 43 remain stationary.

The pattern Wheel or form 133 is loosely mounted on hub 46. `This Wheel is intermittently rotated by the pawl 249 mounted on the pinion 25() by means of a Wrist pin, and said pinion gears with the relatively larger pinion 35 and thus said pattern wheel is moved atan accelerated speed With reshaft 44 has a notched disc: ilixed thereon which is engaged by a pawl 56 pivoted to the.

lever 57, fulcrumed to the trame at 58, deriving movementl from the hubV 53 of the segment gear 39, through the veam52, tor

moving the arm in one directiomand tlievl retraction spring 60 operating to return said arm. The paWl 56 is normally held inoperative by the dogA 6l pivoted on the frame 25v see Figure 6) andsaid dog is tensioned, by the spring 59, to vengage with one edge of the chain and is formed with a tail-piece 62 (see Figure 4) normally coacting with the pin or stud 63 of the pavvl 56, to hold the latter out of engagement with said notched disk 55. Several of the shiftable units of the chain 48 are provided with lugs 64, Whose function is to engage with dog 6l and lift the latter to release the pawl 56, when said pawl may engage with a notch on the disk and impart movement thereto. Said disk 55 is fixed to thc cam Wheel 43 and thereby imparts movement to .said cam wheel to actuate the clutch-.shifting arm 4l to engage with one or the other clutch elements 28 and 33, accordingly as the machine is to operate by circular knitting or reciprocable knitting, and this is predetermined by the number and location of lugs 64 on the chain 48 which may-be arranged as required to effect the pattern to be knitted;

A second cam wheel 65 is fixed en the sha-ft 44 and has for its function to .-:hiit the cam plate of the knitting head and to manipulate the yarn carrier,as in the Mayo machine. A notched disk 6G is secured to said cam wheel 65 and is engaged and operated by a pawl 67 pivoted on the lever 68 which, in turn, is moved through engagement with the roller 268 journaled on the gear segment 39. VA retraction spring 69, anchored tol the frame returns said lever 68. The notches on the disk 66 arev disposed to supplement the notches on the disk 55, to the end that the latter disk 55 will be moved during those periodsvihen its own operating paivl is inactive, the tivo disks and 66 having blank spaces separating individual notches or groups of notches and having their respective notches so located as to form virtually a single disk notched about its periphery. The disk 55 has in the exact struct-ure shown in the drawingsl only four llt) lBO

Leonesa" notches and by this arrangement, the can disk 55 must be moved upnotwithstandin'g its blank periphery, and this isdoneyby the notches inthe disk 66 which are located an* guiar-ly with respect to thc blankperiphery of said disk 55 because of the dierent points of contact of. their respective `pawls; andV where there are notches on the disk 55, there are none on the disk titi.` In other words, the disk and pawl (66 and 67) provide an auxiliary device for insuring the running of the machine in proper timed relation. The foregoing structure is substantially that of theMayo machine, andthe present invention provides an attachment consisting of a knitting head having dial needles mounted on the cylinder canbring of the knitting head of the machine proper and various connecting and cooperating mechanisms. The support for the head consists of an arm 70 secured tothe frame 25 of the machine in any suitable manner, having an annular portion 71 supporting ar series of inwardly disposed and cani operated' slidable bolts 7 2. Each of said slidable bolts at its inner cud engages a notch in a ring73`mountcd on shaft disposed concentric with the cylinder 7610i the cylinder needles (see Figures 1 and 2). The several bolts 72 engaging the shaft supporting disc are toprcvent ro tation of the disc and aledisplaced in succession by the respective cams. at opposite sides of the yarn guide 74 according to the direction of movement (see Figure 2) and said yarn guide is in turn carriedby thc revolving head after the usual manner. A` dial `"(7 constructed to receive a plurality ot dial needles 78, is fitted on the shaft A75 and located within the cylinder 76, and remains stationary therein by reason of the arms 72 as hercinbefore described.y

r A dial cap 82'is secured to the shaft 75 and carries the elements for actuating the dial needles at the periods redeterlnined by the pattern formsl hereto ore referredA to. Saidelements consist of a pair ot' plates 83 and 84 mounted tor slide radially in the ways 85 formed ontlie underside of said dial cap, and are adapted to be actuated by the links 86 and 87 engaging pins 88 secured to the plates 83 and 84 and `working in slots 89 formed in the body of the dial cap 82 The plates 83 and 84 are constructed with cams 90 and' 30I` which act to project the needles of the dial through the rotaryiuotion of the dial cap. Other cam elements` 91 and 91v forlned on each of the slidnble plates, operate to limit the movement of the projected needles, forming a cam Way 92 to receive the butts 93 of the dial needles 7 8 (see Figures` 11, 12 and 13) to move said needles inwardly and outwardly as required.

rscribed).and a guard cam 197 Two pairs of guide members or wing cams 95 `pivotally mounted "on studs or f pins 96 `tFigureslQ, 13 and 14) are tensioned each against its adjacent projectingcam 00 by the pair of springs 97, to the ond of forming a continuousadjustable cam and cammay 92 through which the butts 93 of the dial needles may `freely move. Said pair of guide` members 95 are made inorablc to. the end that they will contact with the surfaces of the cams 90, 90 in any position of said cams in their operation.

Ret-meting cams 197 (Figs. 11 and 13) are positioned to act ontho needles shortly after theyha-ve been advanced by the projecting cams 90, 90. A- gate 99` (hereinafter dci'ollow in succession after each retracting cani and serve with guard cams 91, 91 to complete the outer wall oiy the cam-path. The cams 197J and 1,97 are secured to the cap by screws 98. i

It sometimes happens that the dial needles 78beco'n1e broken, and lin order to facilitate their removal in such instances, with the least trouble, an access passage, closed Vby the piece 99, is Vprovided and said piece is dctachably secured to the underside of the dial cap 82 by a spring-pressed stud 100 that. works within a chamber 101 formed in said dial cap 82. Said stud` has a swivcled head 94 for drawing and retaining the piece 99`within the recess 101 giving access to the needles.

The slide 83 is adapted to occupyvarious positions according to whether the needles are to knit, tuck or remain inactive in the welting position. In the last position the needles are idle and substantially stationary, but may either be empty, or be holding previously knit loops for making a welt. i

The slide 84 also occupies different positions, depending on Whether or not the needles are to be projected, as to clear the latches for castingof the work, or 5to open the latches prior to commencement oi' knit ting on the dial needles, or opened prior to `knitting on the dial needles.

` The movement of the needles forrcasting oil"` and latch opening is accomplished by the `cam, 90 connected to the link 86, and said link is connected to the arm "102on the post or shaft 103 pivotally mounted in the block 71. A pinion 104, secured to the shaft 103 meshes with a similar pinion 105 on `tho .sha-ft .106, likewise jonrnalcd in said block 71, tothe end thatthe movement of either shaft 103 or 106 Will cause a like movement of the other in the opposite direction. An arm 107 is mountedr on theshaft 106 and acts, when engaged by the obstruction or trip 108, to movevcam 90 to its outermost` llo llt)

position, when thebrusli 109 onthe su port 110 will engage the latches 111` o ythe needles to open the same. In this position of the-cam, the dial head makes a suitable number of revolutions to insure that the extension 115, being engaged by the trip 1111,

moves the cams all the way in. rlhe function of the arms 107, 1.18, and 115, is to co act with the trips 108 and ,1l-it for the purpose of positioning the cam 90 lto project the needles to have the latches 111 opened, When knitting is to begin on the dial needles and to move said needles fully yin with said latches opened, thus leaving the needle hooks 112 in condition to receive the thread at the proper time; also to project and retract the needles to throw-off the stitches when the fabric is to be cleared from the needles.

The mechanism for controlling the knitting cam 90 (see Figures 2, 14 15 and 16) consists of a. shaft 110 journaled in the blocks 71', the shaft being vnormally moved in a direction to move the cam 90 into knitting posit-ion. A pair of latches or detent pawls 117 and 118, mounted on supports 119, are adapted to engage with a rockarm 120 to hold the cam against the stress of the spring 11G in a half-way position, or fully in, as required. 1n their half-Way position, i. e. when held by the pawl 118, the hooks 112 of the needles receive the thread as for forming tuck stitches. An arm 121, fixed to shaft 116, is actuated by the trip or stop 114 to move the cams all the Way in. The two latches 117 and 118 are provided respectively with extended portions 122 and 123 that may be engaged in succession by the trip 1141 to permitthe shaft 116 to actu-4 Awhich there is a ribbed leg anda plain foot.

The stocking may have, near its top a round welt or a flat Welt in half cardigan stitch, the welts in the stocking here discussed being merely for purposes of ornament, and indicating` some of the possibilities inherent in the machine.

y The process of making such a stocking is as follows: beginning at the toe, first, a toe pocket is knitted on the cylinder needles only, then the machine changes to a. rotary of plain fabric are knitted roundand roundfollowing the heel. l

To change trom plain fabric 1n the foot to rib fabric for the leg, the dial needles are now advanced to open their latches, disk 108 being raised to engage arm 107 and move out cam 90. rlfhe needles Vengage brush 109 as they advance, and the machine makes one or more revolutions so that all latches may be opened, the knitting cam 90 being at this time in retracted position. Disk 1111 now engages arms 113 and115 to return cam 90 to idle position and the dial needles are advanced at the knitting side of the machine to tuck position, disk 114 beingV raised to engagemember 122 to release'lhook 117, when .the cam 90and its plate Will be moved by spring 116 toward knitting position, hook 118 engaging arm 120 on the shaft 116 to prevent the needles going all the Way to knitting position. The dial needles now take the yarn and afterall are supplied disk 108 engages arm 121 to return the needles to inactive or Welting position. the hook 117 again engaging arm 120 on shaft 11G to hold the cam in place.- The machine now makes one or more revolutions and then disk 114: is raised and successively releases hooks 117 and 118 to permit spring 116 to swing the post 116 to extreme position carrying cam 90 to knitting position. The purpose of taking the yarn by the dial needles a. little prior to beginning rib knitting is to close the eyelet holes which other- Wise result at this point.y

Rib knitting now continues throughout the leg up to the point Where a tuck Welt is to be made. At this point the-disk 108 moves arm 121 so as to be caught by hook 118, the cam 90 being moved half Way in and the dial needles now tucking While the cylinder needles knit as before. vWhen each dial needle has taken one or more' extra loops of yarn, the Whole is knit voll1 to form a course of dial tuck stitches by raising disk 151l1`to release hook 118 so that cani 90 'can knit, and this sequence of operation is repeated so long as tucking is to continue. A tuck Welt or section of desired Width having been made, plain rib knitting'is resumed, and thereafter a round ivelt is made by raising disks 108 and 114 to release both hooks 117 and 118 in close succession, thus throwing the dial needles out of action but Without casting on' f their loops.

One or more courses are nowj knitted on the cylinder needles and the dial Disk 108 is raised tofstrilre arm 121 and move the cam 90 and thedial needles to tucking position. After an `additional revolution or two disk 114 strikes arm 121 and moves the cam 90 and the dial needles all the wa in to inactive position, the shaft 116 being held by hook `117. The dial needles have now ceased knitting, but hold their loops. To castoii these loops, cam 90 is now operated, disk 108 actuating arm `107 to move casting oil' cam 90 all the Way out to clear the, latches of the dial needles, and disk 114 then returning the cam by two steps by striking arms 113 and 115 in succession( Plain knitting is nowgresumed, the movement of the machine again being changed from rotary to oscillatory to begin the toe ofthe next stocking. i

Many variations may be made in the product of the machine bythe use of my improvements, as such use ,is `not limited to the making of stockings,`being equally applicable to machines for making underwear, sweater sleeves and other articles. Changes in the design of the article may also be made in numerous Ways, by varying the pattern devices to produce `such eliects as may be desired. y tis to be noted that my machine isada `ted .to start knitting on the bareneedles.` n the ribbers commonly in use it is `necessary to thrust the stitches of a piece of fabric on both sets of needles to form a foundation on which knitting may begin, one reason therefor being that the knitting Waves of dial and cylinder needles are not simultaneous. v y

The presence in my machine of sinkers or webholders such Vas are used in plain `knitting machines enables me to start knitting on the bare needles without resorting to a transfer or stabbing-on offabric.` y e A rod 124 has vertical movement inthe bearing 125 on the plate 126 secured to the frame 25. The upper end of this `rod, carries rotary disks 108 and 114 forming abutments adapted to be lifted into the pat-h of movement of the several arms 107, 113, 121, 122 and 123 of the abovedescribed mechanism, in proper timed relation, through the rod 127 working in the sleeve 128 and having a lateral portion 129 that. engages the underside of the disk ,114. The lower end of said rod 127 rests on lever 130 pivotally mounted on the frame 25 and which lever-has a depending member 131 that (zo-operates with projections 132 carried on the pattern Wheel 133 which is journalled loosely on the hub 134 ot theratchet 45. The ratchet Wheel is intermittently operated after the manner heretofore described; and said ratchet Wheel operating means `simultaneously moves the pattern Wheel. The pattern wheel is nconstructed virtually as a mutilated ratchet Wheel onwhich they pattern screvvs132 and teeth 135` are located, leaving blank spaces. While pawl 249 reciprocates idlylonfsuch a space the wheelstands still and to start the Wheel again after the desiredfinterval, a plurality of lugs 136 are formed on. the pattern Wheel andengage with lugs 13,7 `carriedby the chain 48. v

In the ordinary process of knitting `hosiery, the toe and heel portions of` the foot are knitted with three threads, while the foot portion is` knitted with only two threads; and for bringingthe third thread into and out of operation, knitting machines have the yarn carrier adapted to be automatically actuated through a cam slot 138, formed in the cam Wheel on the shaft 44 Figures 1 and 6). Said cam slot 138is usually provided with` two salients, one for controlling the machine to knit the toe portion with three threads, and move the yarn carrierout `knitting machines by reason of the dial needles, which must beara definite ratio thereto. By reason of this lesser number of needles on the cylinder, it is proposed `to knit the entire `foot of the stocking, the heel, toe and that portion between the `heel and toe,=of uniform texture or tension throughout to compare with the rib portion of the stocking. j i

To carry out the foregoing, it is therefore necessary to move the yarn carrier but once into position, or when the `foot of the stocking is to be formed. To this end` the cam wheel 65 has but one salient 139, which acts on the shaft .140 of the yarn carrier (not shown) to move the latter into position for vknitting the entire foot portion of the stocking, and then to move the same out of posi- `ion when the remainder of the stocking is being knitted. ,i

`The presentinvention further contemplates the provision of an automatic release for the drive in the event of breaking of either a cylinder needle or a dial needle, which would cause an` accumulation of thread or yarn and result Vdisastrously to the machine. The apparatus for producing this result (see Figures 1,' 2, 3, 7, 20 and21) consists of an arm 141 pivotally mounted at 142 to the revolving head and normally held in inactive position. by the lug 143 engaging the notch 144. A `stud 145 carried at the free end of said arm 141 is adapted to en- 'gage with the lever 149, and movethelattei to `disengage the end 150 latched in the notch 151 of the rod 152 that is normally 'longitudinally by the spring 157, Vcarrying with Vit the belt guide 158 fixed thereto to shift the driving belt from the driving pulley on to the idler pulley. It will therefore be seen that any accumulation of thread, due toa broken needle, or from other cause, will act against the immediately adjacent sinker 159 and thereby radially displace said sinker as indicated in Figure 8 to engage the cam portion 160 of the lever 141 and move said lever to the position shown in full lines in Figure 6 when the aforesaid operation will occur.

The take-up apparatus for the machine consists of the usual pair of corrugated rollers 161 journalled in the frame 162 that is swingingly mount-ed on the shaft 168 which is in turn journalled on the bracket 164 secured to the frame 25 of the machine. Said corrugated rollers 161 have inter geared pinions 165, and a pinion 166 on the roller shaft 167 is connected to be driven from the smaller pinion 168 on the shaft 169 that carries the pulley 170. A belt 171 connects the pulley 170 with the driven pulley 172 on the shaft 26. This apparatus is a well known type and no claim thereto is made in the present application.

An auxiliary feeding or take up apparatus Figures'l, 6, 8 and 9 is employed in connection with the take-up just described and is adapted to be operated for continuously feeding the stocking when the same is knitting the toe or heel portions, and at such times the take-up rolls 161 are in effect inactive. The annular take-up consists of a belt 17 8 carrying cross pieces 174 and traveling on two notched/pulleys 175 and 176 that are journalled in the frame 177. Said frame is'in turn mounted on a shaft 178 carried by a bracket 179 that is secured to a vertical post or shaft 225, herein shown beingI that shaft of the Mayo machine which is moved up and down to vary the stitchlength, and is oscillated to operate the yarn changing devices. f

The belt 178 Vis connected to, be continuously driven by means of a gear wheel 180 fixed to the shaft 178 and meshing with a similar gear wheel 181 on the shaft 182 in the frame 179. A ratchet 188 fixed on the shaft 182 is intermittently rotated through the medium of a pavvl 1811 on the arm 185 fulcrumed on the shaft 182, and said arm 185 has an extended portion 186 that carries a rod 187 having its free end movable in an apertured portion 188 formed with the bracket 179.1 lThe rod 187 is reciprocated in one direction by the arm 189 mounted on thepivot 258 of the hub 58 and the segment 4gear 39 and the reverse movements of said rod 187 are effected by the spring 190 mounted thereon and seating against a stop 191 and an anchorfpiece`192. It will therefore be seen that the operations of the arm 189 will cause the pawl 181`to be moved in a counter clockwise direction and will at the same time compress the spring 190, so that said spring will in turn cause the pawl 18st to be advanced in a clockwise direction and turn the ratchet wheel 18,3 which through the gearing 180 and 181 will cause thev belt 178 to be continuously driven. y

It is obvious that those skilled in the art may vary the details of construction'and form and arrangement of parts without departing from the spirit of my invention, and therefore I do not wish to be limited in any such features except as maybe required by the claims.

Having thus fully described my said invention. what I claim as new and desire to secure by Letters Patent, is:

1. In a pattern mechanism for dial .and cylinder knitting machines a pattern wheel having ratchet teeth at spaced intervalsl about its periphery, and a plurality of concentric series of projections on one side of the Wheel, one or more of said series operating dial cam controlling means, substantially as set forth.

2. In a pattern mechanism a pattern wheel having ratchet teeth at spaced intervals, about its periphery, anda plurality of concentric series of projections on one side of the wheel, one of said series forming driving means supplementary to the ratchet teeth.

3. In a pattern mechanism, a pattern device having ratchet tecth at spaced intervals about its periphery, a driving pawl co-acting therewith, a pattern chain havingmeans engaging said device to act as a supplementary drive, a lever pivoted adjacent said device and means projecting laterally froml said device for engagement with said lever.v

l. In a pattern mechanism, a pattern form having driving devices at spaced intervals on its periphery, supplementary driving devices projecting laterally therefrom and means also projecting laterally therefrom for engagement with elements tobe controlled by the pattern.y

5.111 a pattern mechanism, a pattern wheel having teeth at spaced intervals on its periphery, means` for' co-acting therewith yto drive the pattern wheel, a plurality of f series of projections at one side of the pattern wheel, and a vpattern chain cofacting lwith one setof projections to drive the wheel.

6. In a dial and cylinder knitting machine having dial and cylinder needles and operiso ating means therefor includinc1r movable dial cams, a pattern mechanism fpor controlling the operation of the needles to produce' ribbed plain circular and reciprocating Work in predetermined order said pattern mechanism comprising a vertically movable dialcamaidjusting abutment, a main camshaft, a pattern Wheel freely rotatable thereabout, and connections from the pattern Wheel to said abutment, substantially as set forth.

7. In a dial and cylinder knitting machine having dial and cylinder needles and operat ing means therefor including movable dial cams, .a pattern mechanism for controlling the operation of the needles to produce ribbed plain circular and reciprocating Work in predetermined order said n'iechanism comprising a vertically movable dial-cantadjusting abutment, a main camshaft, a pattern Wheel freely rotatable thereabout, means for actuating the camshaft and the, pattern Wheel independently of each other, and connections from the" pattern Wheel to said abutment, substantially as set forth.

8. A knitting machine as in claim 6, With main and supplementary driving means for the pattern Wheel, substantially as set forth. i

9. In a knitting machine having a dial cap and movable cams thereon, means for 'adjusting said cams comprising aimovable abutment, a main cam shaft, a pattern Wheel rotatable on the cam shaft, a vertical rod carrying said abutment, a lever in contact with the rod and. projections on the pattern Wheel adapted to engage the lever and thus move the rod and the abutment, substan tially as set forth.

l0. In a knitting machine having a dial cap and movable cams thereon, means for adjusting said cams comprising movable abutments, a `pattern mechanism comprising a canrshaft, a hub loose thereon, a sprocket on the hub, Va chain on `the sprocket, a pattern Wheel loose onthe hub, means for driving the cam shaft, the hub and the pat tern Wheel independently of each other, said means for Vdriving .the pat-tern Wheel in- `cluding intermittently operating connections between the chain` and the pattern Wheel,

and connections between the pattern Wheel and said movable abutments, substantially as set forth. Y

11. In a knitting machine havingv a dial cap and movable cams thereon, and means on the dial for controlling the positions of the cams, a pattern mechanism comprising movable disks for engagement with the controlling ineans for said cams, a main cam shaft, a hub loosely mounted thereon, a 1atchet and a sprocket fixed to the hub, a

pattern chain on the sprocket having lugs` lat one side of certain links,.a pattern wheel loose on the hub, means for driving the pat. tern Wheel including ratchet teeth thereon with blank spaces between certain teeth, a

series of lugs on the pattern Wheel adapted to be engaged by the lugs at the side of the pattern chain, another series of lugs at the side of the pattern wheel, a lever for engagement'by the last named lugs, a slidable rod resting on the lever having a lateral extension at its upper end, said extension operating said disks, substantially as set forth.

12. In a knitting machine having a dial cap andmcvable cams thereon, and means on the dial foi-controlling the positions of the cams, a pattern mechanism comprising movable disks for engagement with the controlling means for said cams, a main cam shaft, a hub loosely mounted thereon, a ratchet and a sprocket fixed to the hub, a pattern chain on the sprocket having lugs at one side of certain links,l a pattern Wheel loose on the hub, means for driving the pattern wheel including ratchetvteeth thereon With blank spaces between certain teeth, a series of lugs on the pattern Wheel ada ted to be engaged by the lugs at the side of the pattern chain, another series of lugs at the side of the pattern wheel, a lever for engagement by the last named lugs, a slidable rod resting on the lever, and connections from said rod to said disks, substantially as set forth.

13. A pattern mechanism for knitting machines comprising a main cam shaft, a ratchet thereon, a hub loose on the shaft, a ratchet and a sprocket fast to the hub, a chain on the sprocket, a pattern Wheel loose on the hub, a rockingmember on the machine, pawls actuated at each oscillation thereof to drive the cam shaft and the hub, a aWl actuated twice for each oscillation of said member to drive. the pattern Wheel and controlling devices for the pavvls driving the cam,V shaft and the pattern wheel, substantially as set forth.

14. In a pattern mechanism for knitting machines comprising a main cam shaft, a hub loose on the shaft, la timing device on the hub, a pattern form loose on the hub, a rocking member on the machine, independent means actuated thereby to drive theV shaft and the timing device, independently driven means to drive the patternV form, means for disabling said driving means for the shaft and the pattern form and connec tions from the timing device for restoring said driving means to action, substantially as set forth.` y i In Witness whereof, I have hereunto set my hand at Washington, District of Columbia this twentieth day of November, A. D. nineteen hundred and nineteen.

NAPOLEON J. PERRY.

"ris

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