US1150549A - Device for knitting on transferred fabric sections. - Google Patents

Description

R. w. snow. I DEVICE FOR KNITTING 0N TRANSFERRED FABRIC SECTIONS.

APPLICATION FILED .IAN. I9 1915.

l l 50,5 Q9 Patented Aug. 17, 1915.

2 SHEETSSHEET I.

IVIIIIIIIIII R. w. SCOTT.

DEVICE FOR KNITTING 0N TRANSFERRED FABRIC SECTIONS. APPLICATION FILED JAN-19,19I5. 1,15Q,549, Patented Aug. 17, 1915.

2 SHEETS-SHEET 2.

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llfTE STATES @l lt f Cllil.

ROBERT W. SCOTT, OF BOSTON, MASSACHUSETTS, ASSIGNOB. TO SCOTT 6c WILLIAMS, INCORPORATED, F CAMDEN, NEW JERSEY, A CORPORATION OF NEVJ JERSEY.

DEVICE FOR KNITTING ON TRANSFERRED FABRIC SECTIONS.

Application filed January 19, 1915.

To all whom it may concern Be it known that 1, ROBERT W. Soorr, a citizen of the United States, and resident of Boston, in the county of Sufiolk and State of Massachusetts, have invented certain new and useful Improvements in Devices for Knitting "on Transferred Fabric Sections, of which the following is a specification.

My invention relates to knitting machines provided with devices for knitting upon a transferred section of previously knit fabric.

One object of my invention is to provide improved means for insuring that the needles first operated after the transfer of fabric will certainly take the new yarn.

I have shown described and claimed in my application Serial No. 807,535, filed Decation COIIlIHlSB a rotary needle cylinder 200, needles n, and stitch cams carried by a segment 3T0, automatically movable out of contact with the needle butts to level the 'dles at a particular needle n, Fig. 2, which needle may be the leading long butt needle of the usual long butt series. .Said application alsodiscloscs means for operating one of the yarn guides F prior to the operative actuation of the needles 1 and the llatenled fan t7, Mil-5.

Serial No. 3,126.

following needles, to cause yarn to be fed, and devices cooperating together to cause said first operative needle and the needles following it to engage the yarn properly to begin knitting with certainty. The preferred mechanism for dropping the yarn guide into position to feed the yarn comprises for instance a thrust bar 400 co operatin with the cam 508 on a pattern drum 120, to feed the new yarn in a predetermined relation to the needles first moved to begin knitting. Dropping the yarn guide F occurs when the cam 503 runs from under the thrust bar 460. Prior to this time the cam. 121 will have run from under another bar 460 to cause the segment 370 to take a position to first actuate the needle 02/. As fully explained in my said. application I found it desirable to provide means for pressing the needles outwardly during the time of the first entrance of the new yarn, and for that purpose provided a device carried by an internal yarn guide 602 for pressing against the backs of the needles to move them out-against the inner face of the latch ring 550 to insure that the'flrst needle moving' down the stitch cam should take the new yarn 3 Fig. 2, into its hooln The said vice was manually positioned during the transfer operation, and automatically released upon the next movement of a yarn clamp device 606.

l have now provided means for rendering the operation of-a needle presse'i' 700, for the same purposes, wholly automatic. Said means comprise a device operated at times coih'dinated with the movements of the above mentioned devices at the beginning of knitting a new section of fabric by a direct connection to the pattern surface 120, thereby rendering the operation of the device for pressing the needles outwardly independent of the operation of the remaining parts of the mechanism, and independent of any interference by the operator.

()n an existing stud (310 in lug on the latch ring 550 I provide bent lever 701 one depending end of which carries for adjust ment by screws 702 the needle presser 700,

the other arm terminating at the region of the thrust bar L in an enlargement 703 having a horizontal bore for an adjustable abutment 705,- which may comprise a round body clamped in said bore by set screw 706 and an eccentrically disposed pin 707 projecting beyond one face of the lever 7 01 into the path of movement f the upper squared end of a thrust bar 460, the lower end of said thrust bar being guided in the comb 451 path and resting on drum 120 in the of cam 520, removably placed in the de sired relation to the cams 121 and 503 respectively controlling cntrance into operative position of the stitch cams carried by segment 370 and entrance of the new knitting yarn. Lever 701 is normally springheld in, the position shown in Fig. 1 by spring 709 between screw 710 and pm 711 on latch ring 550. A set screw 712 determines the withdrawn position of said lever.

The operation of the device will now be apparent. The needles having been leveled by the withdrawal of segment 370, a rib top or other section having been transferred upon the needles, and the latch ring 550 returned to the adjusted position shown in Fig. 1, upon startlng the machine the yarn guide carrying the yarn ;l is caused to enter needles. will not be actuated, but will remain elevated, and in the absence of means to cer tainly cause the needle n to take over the yarn, now extending tangentially to the circle of needles, the presence of theelevated short butt needles would permit needle 91 and those immediately following it to be retracted without taking the yarn 1 thereby casting olf the transferred loops. (lain 520 now. holds the presser 700 ll1-])()Sltl0l1 ll0 throw out the needles in succession substaiitiallynt-the relative point indicated in Fig. 2 thereby causing the hook of the first operative needle to take hold of the yarn. Further movement of drum 120 causes lever 701 to be elevated.

\Vhat I claim is:

1. A. knitting machine having in combination a series of needles, means fqr first actuating a predetermined needle to begin knit ting, means for feeding yarn to said needle and others near it, a device for moving said needle out of line with other needles when it is first actuated to cause it to take over said yarn, and pattern controlled means for operativoly positioning said device.

2. A knitting'machine having a circle of needles and means for beginning knitting on a transferred section of fabric comprising means for beginning knitting movement after transfer at a predetermined needle, means for feeding yarn to said needle and to other needles not then'operated, a device for moving the first actuated needles out of said circle, and means for rendering said device operative in a predetermined relation to the beginning of said knitting movement.

A knitting machine having in combination a series of needles, a yarn-guide, means to move said yarn-guide to render it operative to feed yarn, a device to move the needles out of line to take over the yarn, and means for rendering said device operative in a predetermined relation to the movement of said yarn guide.

at. In a knitting machine, a yarn-guide, needles and a device for locally moving a few needles in contact with it out of line in a fixed relation to the yarn-taking point to cause the needles when actuated to take over 5 the yarn at the beginning of knitting, in

combination with pattern-controlled means for moving said device into operative position at the beginning of knitting, and for thereafter rendering said device inoperative. 9

5. A knitting machine having a yarn guide, needles, knitting cams, and means comprising a pattern-surface for entering the knitting cams upon the needles to begin knitting, in combination with a movable device for causing the needles'first actuated to take the yarn, and a connection from said device to said pattern-surface for moving said device into and holding said device in operative position during a predetermined time at the beginning of knitting only. I

(l. A circular knitting machine having in combination needles, yarnguide means comprising a latch-ring, a lever mounted on said latch-ring, a presser on said lever for mov- 1 ing some of the needles with respectto said latch-ring to take them over the yarn, and means for moving said lever to render said presser operative'and inoperative.

7. A circular knitting machine having in combination needles, yarn guide means cornprising a latch-ring, a lever mounted on said latch-ring, a presser on said lever for moving some of the needles outwardly against said latch-ring to take them 'over the yarn, a pattern surface, and a connection from saidsurface for moving said lever to render said presser operatiie. or inoperative, 1

8. A knitting machine having a yarnguide, and devices comprising a pattern surface for automatically beginning knitting on a series of needles previously leveled for transfer including a 'presser device within the needles, a mountingtherefor overhanging the needles, and a connection to said pattern surface for moving said mounting to move said presser outwardly against the needles.

f). A knitting machine having needles, a latclrring, a bent lever pivoted on said 1,150,549. latch-rim having a de iending end vvithin In testimony wvli'ereef, have signed my said need es, and a presser device on sald dename to this speclfication m the presence of pending end, in combination wlth a movable pattern-surface, a thrust bar actuated thereby to operate said lever, and an adjustable abutment at the point of contact between said bar and said lever.

two subscribing Witnesses.

ROBERT W. SCOTT. W'itnesses RUTH A. ROPER, HELEN M. SWEENEY.

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