US1690593A - Dial-cam-controlling mechanism - Google Patents

Description

Nov. 6, 1928. 1, 90,593

N. J. PERRY DIAL CAM CONTROLLING MECHANISM Original Filed Sept. 13, 1920 3 Sheets-Sheet .1

gum/whoa Napoleonl Perry Nov. 6, 1928. 1,690,593

' N.J.PERRY DIAL CAM CONTROLLING MECHANISM Original Filed Sept. 13. 1920 5 s 5 y 2 Nov. 6, 1928. 1,690,593

N. J. PERRY DIAL CAM CONTROLLING MECHANISM Original Filed Sapt. 15. 192 s Sheets-Sheet 5 anmwtoz Napoleon J. Perry Patented Nov. 6, 1928.

sums PA-r sm other;

NAPOLEON J. enny, OF NASl-IVILLE, TENNESSEE; AssIern'oR To MA HOSIERY MILLS,

on NASHVILLE, TENNESSEE, A coRPoRATIofi or mim'sssm DiAL-GAM-CONTROLLING MECHANISM.

Applie'ation filed s'e'pmmber 1a; 1920, Serial 1%. 409,983. sensed March 23, ms.

The purpose of my said intention is to provide an iniprovenient in d al can] controlling means desgned especially for use in circular knitting machines adapted to knit su'cee'ssive portions of plain Work (either by eireuliti or reciprocating motion) and rib Work in -pre'dei'er1nined rel'et'on thereto, as

for exiiinple 2t stoel'cin'g With 2t plain foot and ribbed leg. WVhile this deviee particularly adapted ioi' use in a knitting machine havlng a stationary needle cylinder and a rotary eini'i ring, it is not limited thereto, eertein features being adapted to n'ieehines having a stationary Cami ring and rotary needle eylin'deig "as well as to knitting lna'ehines oi oth'r types, and to other patterncontrolled nii clii'nery.

Reference is had to my co-pending application No. 3 5,071, filed December 29; 1919, for "details of structure not herein disclosed.

Referring to the accompanying drawings which are made a part hereof and on which similar reference characters indicate similar pin-is, Y I

Figure 1 shows a detail elevation taken at oii'esicl'e'of themaehine, i I t Figure 2 ii plan View of the machine, parts not necessary to this d'selos'ure being o1nit-' ted, i

Figiire's 3 and'i are (let-1111s, Figure 5 a view s howing the under side of my positioning Cains, Figure 6 :1 seetion of the dam in Figure 5, and .1

*ir'g'ure 7 View showing the under 'slde of the d al chin-plate.

The Cain shaft 25 is driven by pawls 'engaging riitchets 2'6 and 27 fast thereon, and has also test thereon ii motion ehenging min 28 hid it pattern drum 29 for controlling the arn feeds and other devices; Loose on the shaft 2i hub 3'0 bearing a ratchet 31 by i'vhi'eh it is driven from (I novinjq pnrt ofthe iiiiichine, and iispro'eket Wheel on which is it cli'e-in These parts are or may be all as in the patent to lilayo, 7526;178, and 0p} eiite thes'aine manner or 'other pattern forms nizi-y be substituted for the sprocket ehsiin', if preferred. H l i To adept this meeheni m 01; centre-11m else the cam in dial cam plate, I have added the following parts, as assented;

The chain has sidewisle extensions 3451i eertainlinks which are ediipted to engage a downward extension 35 "on a lever 36 pivoted at 37 to a fined pert'of the machine. A vertieel rod 38 rests. it its loiver end on lever 36 and carries at its upper end a' plate 39 to which it is rigidly ci'mn'eete'd. A rod 40 is also lined to the plate and both rods are A segmental reel: member :42 is fixed to rod 40 above plate 39 and is adapted to operate pinion 4:3, This pinion is mounted on 'a'shaft i4 having'zt crank-pin 45 for moving two pewis 46 and 4:7. Pawl 47 is pivoted by screw 4:8 to an arni i9 on a post 50 on therota'tin-g head 51 of the machine. Pawl it? drives retehet52 and pawl 47 ms toi'ock it after each movement pyip'awl 46. The number of teeth in rack segment 42 and pinion 43 is so proportioned that shaft 44 will make a complete revolution each time it is engaged by rack 42. Riitohet has 24 teeth and is formed on it positioning cam 53 mounted upon the dial cam plate or support 54: on the under side of which is ii pivoted "loek cerrying a needle-projecting cam 55. The positioning eaini' is capable of rotation relative to the plate 54 to moveuie earn 55 to desired positions by the action of cam path on apin 57, projecting f'i olii the block, its knitting position; Where the needles are fully projected ind fully retracted during a relative rotation of the needles and their cams; tucking position where the needles are projected fer enough to take the yarn; but not to clear their-latches to knit, and welting position Where they r'ei'nain sue stztnti'elly in non-lniitting' position an may he hereof yiirn or may hold loops of arn fora desired period; It :ilso iiiov'es :i pivoted bloele'earrying eiini 58 bV the eel-ion of Gain lmili 59 on 'piii 6'0 to "a position when it eliirs th'e liitehes of the needles endto an inner idle position t'o ozist off the loops. Needleretracting ean is and giiiirdCeniS are iilso e51- l'lB'Cl by the bloeks, as in my pii'eiapplies tio'n alibv'e' mentioned; p p T: p

s a niiieiiiiie siie'h as thit at niy a piimti'oh No; 348",07 l;tl'1e positioning am of ignie 5 would produce efii'e eits as follows on the dial needles 24 in its sehedriled positions of may T-ju stiiien'ts, positions pins pioje 'eting npiinirdl yfrh'm the diet eaiiis' into grooves 56 zind59 btiiig indibiited by the numbered lines in Figure 5, the opera Position 01 Number Cam Effect on knitting Plain work on cylinder.

Dial-needles take yarn.

Hold bights of yarn.

Hold bights of yarn. I

Change from plain to rib completed. Needles take yarn from round welt, Dial d1needle: t holdI bigitS-cyhndeg T nee es kni oma re or inary roun VS citing." Welt Knitting Round Welt completed. I Repeat operations 5 to 8 for second round welt. 7 Repeat operations 5 to 8 for third round welt. Repeat operations 5 to 8-for fourth round welt. Tucking" Change from rib to plain.

Weltin'g Change from rib to plain.

\Velting Plain work on cylinder..

Welting Tucking. Waiting Welting Knitting. 'Iuckinglit will be understood that the leg of the.

stocking is ,knitatposition 4,and that the round welts referred to are merely for orna nienting theupper end oi the stocking, they being knitted as ordinary welts,.fand the stockings being knitted as endless string work. Also that inchanging from plain to rib, at positions 2 and 3 two or more rounds are knit on the cylinder needles while the dial 'needleshold bights of yarn taken at position 1. I

, W henposition'22is reached for the knitting cam, the work casting cam israt position 11 jllStfibOlltto advance the needles, which have ceasedto take yarn at 22; at

position 23 of cam 55, cam 58 is at position 12 to clear the latches, and when cam 55 is at 24, cam 58 is at 13 and the dial needles cast ofl" their stitches, Iwhile the cylinder needles continue to knit thus completing the, cycle. It is to be understood that the positions indicated by circles in Figure 5, are really those of the upwardly projecting lugs on the camsand not of the cams themselves, this being the reason why 23 and 12, e. g., are not at diametrically opposed points;

Such description of the operation of cam V 53 is merely illustrative and its operation maybe widely varied by using differentp0- sitioning cams and by changing the pattern mechanism. i ,An advantage of this device is that by the use of the positioning cam shown having twenty-four positions instead of eighteen as inmy former application, I am enabled to dispensewith one rack-segment and the ens tire series of devicesnecessary to lift the rack-segment, to high position. It will be noted that application 348,071 has two series oflugs on the pattern form for raising its segment-racks; to different heights,

while the present drive employs .but one set 'i' of lugs on-the chain, yet is able to knit plain and ribbed fabric with roll welts in the ribbed, fabric.

-Another advantage is that the angles of the outer cam path are easier, thus faQilitatingithe running of the machine.

pensed with, the single rack being operated by lugs of uniform height on the pattern drum. j p 7 I have shown one 'form of my invention but;wish it to be distinctly understood that I ,1 do not limit myselfto the particular embodirnent shown or the particular utility de scribed, the true scope of the invention being set forth in the appended claims.

laying thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is: I I j 1. In adial and cylinder' knitting machine a dial cam support, needle, operating cams on the same, pins on the cams, a positioning cam for the needle cams,the positioning cam having grooves therein for engaging said pinson the needle cams and means for indicating twenty-four successive positions of the needle-cams, substantially as set forth.

2., In a knitting machine adapted to produce either, ribbed, plain circular or reciprocating work as desired, a dial cam support, needlelcams thereon, a rotary positioning cam. on the support to adjust the needle cams, a ratchet on'the cam having twentyand means for operating the them relatively into and out ot engaging position.

4. In a knitting machine adapted to produce-either'ribbed, plain circular or reciproeating work asdesired, a dial cam support,

a rotary positioning cam on the support, means to rotate the cam in a cycle of twenty four steps, a single pinion rotatable with the dial cap, a single rack adapted to engage the pinion, a pattern chain and-connections therefrom tomove the rack into and out of operative relation to the pinion.

- ,5. In a knitting machine adapted to produce either ribbed, plain circular or reciprocating work as desired, adial cam support, a

rotary positioning cam on the support, and

means torotate the cam in a cycle of twenty our steps, a single pinion rotatable with the dial cap, a single rack adapted to engage the pinion, a pattern mechanism tocontrol the. operations of the machine, including a pattern chain and connections therefromto move, the rack into and 011 of operative relation tothe p ni n.

6. In a knitting machine adapted to produce either ribbed, plain. circular or reciprocating Work as desired, a dial cam support, a main cam shaft, a sprocket Wheel loose thereon, a chain on the Wheel, lugs projecting laterally from the chain, a pinion on the rotating head of the machine for positioning the dial cams, a rack adjacent thereto, and means actuated from the chain for mov ing the rack into and out of operative relation to the pinion.

7. In a pat-tern mechanism the combination of a chain having lugs projecting later; ally therefrom, a lever adapted to engage the lugs, an upright rod movable with the lever, a rack on the rod for engagement with a pinion on the knitting head, a bracket for guiding the upper end of the rod and a second rod fixed to the first and also guided by the bracket, the rack being movable by the lugs on the chain into and out of operative relation to the pinion.

8. In a pattern mechanism, a main cam shaft, a pattern form supported thereby said form having a single series of projec tions at one side, a lever adapted to rest at one end on the projections, a rod connected to the lever, a segment rack on the rod, a positioning cam for the dial cams, said positioning cam carrying a ratchet, a shaft having a starn-vheel for engagement with the segment rack and an eccentric pawl for oper ating the ratchet.

9. In a knitting machine having rotary needle actuating cams, a sprocket, means to drive the same, a chain on the sprocket, lugs projecting perpendicularly to the path of movement of the chain, lugs projecting laterally from the chain, a pivoted lever arranged to be moved by'the lugs, a device movable about the axis of the machine, and an abutment adjusted to be moved by said lever into the path of said device for variously positioning one of said-needle actuating cams, substantially as set forth.

10. In a dial and cylinder knitting machine, a positioning cam above the dial connected to the dial cams to adjust them and thereby vary the action of the needles, a

pinion on the rotary head of the machine,

connections from the pinion for operating the positioning cam, a single rack to operate the pinion, a pattern form having a single series of elevations of uniform height and connections adapted to be lifted by the form to place the rack in operative position, substantially as set forth.

11. In a dial and cylinder knitting machine, a rotary head, a pinion thereon connected to a dial cam for adjusting it, a single rack on a stationary part of the machine for driving the pinion, and pattern mechanism for moving said rack into and out of driving position, substantially as set forth.

12. In a dial and cylinder knitting ma chine, a rotary head, a pinion thereon connected to a dial cam for adjusting it, a rack fordriving the pinion, a pattern form having a single series of elevations of uniform height, and connections from the form to the rack, substantially as set forth.

In witness whereof, I have hereunto set my hand at Nashville, Tennessee, this 9th day of September, A. D. nineteen hundred and twenty.

NAPOLEON J. PERRY.

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