US1377239A - Web-turning device for knitting-machines - Google Patents

Description

L. N. n. WILLIAMS. WEB TURNING DEVICE FOR KNITTING MACHINES.

APPLlCATION FILED JULY 9, !9\9.

Patented May 10, 1921.

2 SHEETS-SHEET I.

Lows MI 0. \A/I kL A 'l 6 L. N. D. WILLIAMS.

'WEB TURNING DEVICE FOR KNITTING MACHINES.

APPLICATON FILED JULY 9.1919.

1,377,239. Patented May 10, 1921.

2 SHEETSSHEET 2- Qwvautoz arts U i T at est tes.

Specification of Letters Patent.

WEB-TURNING DEVICE FOR KNITTING-MACHINES.

. Patented May 10, 1921.

- Application filed July 9, 1919;. Serial No. 309,704.

To all whom it may concern:

Be it known that I, LOUIS N. D. WILLIAMS, a citizen of the United States, residing in Ogontz, Pennsylvania, have invented a cer tain Web-Turning Device for Knitting-Machines, of which the following is a specification.

The object of my invention is to provide a knitting machine with means for engaging the web of fabric produced thereby and pushing said web upwardly beyond the end of the cylinder of the knitting machine and into a point ring which has been applied to the needles, so that when said point ring is removed from the needles to be applied to the sewing mechanism which united the terminal stitches of the web on said ring, the web will occupy its proper position thereon.

This object I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which- Figure 1 is a vertical sectional view of sufficient of a knitting machine to illustrate my improved web turner inconnection therewith; i

Fig. 2 is a similar view illustrating the web turner in a different position from that shown in Fig. 1; t

Fig. 3 is a horizontal section on the line 3-3, Fig. 1; v t

Fig. 4 is an enlarged view of the upper end of the needle cylinder of the machine with the point ring applied thereto and the web thrust part way into said ring, and

Fig. 5 is a top view of the mechanism shown in Fig. 4.

In Figs. 1 and 2 of the drawing, 1 represents the needle cylinder and 2 the cam cylinder of an ordinary circular knitting machine in which the knitted web 00, as it is produced, hangs down within the cylinder, as shown by dotted lines. Depending from the fixed bed plate 2 of the machine is a tube 4 which surrounds the tubular web at and has at the bottom inwardly projecting flanges, 5 slotted for the reception and guidance of opposite tubular rods 6 and 6 which surround and are guided in their vertical movements by stems 7 projecting upwardly from a base plate 8, said rods 6 and 6 being caused .to move in unison, vertically, by being connected at their lower ends by a transverse bar 9 which, when the rods are. depressed, rests upon springs 9 surrounding the stems 7. The bar 9 may be raised and lowered by means of a stem 10 guided in an opening in one of the flanges 5 and provided at the top with a handle 11,

whereby it can be readily manipulated.

If movement of the rods 6 and 6 independently of each other is desirable, the connecting bar 9 may be dispensedwith and each of the rods may be provided with an operating stem 10.

The rod 6 has, on its inner side, a projecting cam 6 and on its outer side a projecting cam 6. The cam 6 when on the rise of the rod 6 passes through the slot in the guide flange 5 at the bottom of the tube 4, deflects said rod outwardly toward the tube, the cam 6 having a reverse action, that is to say, when, on the rise of the rod 6, it passes through the slot in the guide flange 5, it deflects said rod inwardly or awaylfrom the tube 4.

The rod 6 has, on the inner side, upper and lower cams 6 and 6, and on the outer side a cam 6*, these cams acting upon the rod 6 in the same manner as the inner and outer cams of the rod 6 act upon the latter.

The rod 6 has, at its upper end, an enlarged head 12, and the rod 6* is forked at its upper end so-as to present laterally separated and upwardly projecting fingers 13, as shown in Fig. 5.

The rod 12 projects vertically beyond the finger 13 for the reason that in the case of a stocking web it engages a slack portion of the web in which a toepocket is formed, the finger 13 engaging that portion of the web which constitutes the instep portion of the foot.

When the rods 6 and 6 are in the fully depressed position shown in Fig. 1 the inner cams 6 and 6 on said rods move the latter outwardly in the tube 4 so as to clear the cepending knitted web a, but as the rods 6 are raised the outer cams 6 and 6 thereon act to thrust said rods inwardly sothat the upper ends of the same will be carried inwardly in order to clear the lower end of the cylinder 1, as shown in. Fig. 2, and when the rods 6 and 6 approach the limit of, their upward movement the inner cam 6* Will act upon the rod 6 so as to thrust the forks 13 at the upper end of said rod outwardly toward the inner face of a segmental bar 180 which is connected to the stripper of that member of the point ring.

In certain cases there is a tendency on the part of stitches which have been transferred.

to the points of a point ring to rise upon and slip from some of the points during subsequent handling and manipulation of the ring and to overcome this tendency the segmental stripper controlling bar 180 may be provided with inwardly projecting barbs 185 (Figs. 1 and 5) adapted to engage with the web and hold it taut so as to prevent rising of the stitches upon the points. hen the upper end of the rod 6 is thrust toward the bar 180 the forks 18 of said rod press the web against the spurs or barbs 185 and thereby insure engagement of the latter with the web.

W hen the web at has been thrust by the rods 6 and 6 into the position shown in Fig. 4 that portion of the web which projects beyond the point ring can be readily grasped and the depending portion of the web then drawn through said point ring so as to properly hang down out of the way within the latter during the subsequent handling of said ring.

It may, in some cases, be desirable to adjust verticallyin respect to one another the pusher head 12 and forks 13. One means of accomplishing this result would beto form a screw thread on the rod carrying the part to be adjusted, and to internally thread said part for adaptation thereto, as shown, for

instance, in connection with the rod 6 and head 12 n Figs. 1 and 2.

In addition to being pro ected upwardly beyond the end of the knitting machine cylinder the knitted web is also turned inside out so as to properly accord with the reversed position of the stitches in the points of the transfer ring;

I claim:

1. The combination of the needle cylinder of a knitting machine with a pusher within said cylinder, and means for actuating said pusher so as to cause it to engage the knitted web depending in said cylinder and push said web upwardly beyond the end oi the cylinder.

2. The combination of the needle cylinder of a knitting machine with a pusher within said cylinder, and means for actuating said pusher so as to cause it to engage the knitted web depending in said cylinder, turn it inside out, and push itupwardly beyond the end of the cylinder.

3. The combination of the needle cylinder of a knitting machine with a pusher therein for engaging and ejecting the knitted web, means for moving said pusher upwardly and downwardly within said cylinder, and means for simultaneously imparting to said pusher movement from or toward the axis of the cylinder.

i. The combination of the needle cylinder of a knitting machine with pushers therein disposed at opposite sides of the axis of the cylinder, and means for imparting longitudinal movement to said pushers so as to cause them to engage on opposite sides of the axis of the cylinder, the knitted web depending in said cylinder, and thereby push upwardly beyond the end of the cylinder those portions of the web acted upon.

5. The combination of the needle cylinder of a knitting machine with pushers therein disposed at opposite sides of the axis of the cylinder, and means for imparting longitudinal movement to said pushers so as to cause them to engage, on opposite sides of the axis of the cylinder, the knitted web depending in said cylinder, and thereby turn said web inside out and push it upwardly beyond the end of the cylinder.

6. The combination of the needle cylinder, a pusher within said cylinder for acting upon the knitted web to push the same upwardly from the cylinder, a tubular pusher rod, a guide stem therefor, and means for moving said pusher rod longitudinally on said guide stem.

7. The combination of the needle cylinder of a knitting machine, a pair of pushers on opposite sides of the axis of the same' for acting upon the knitted web depending in said cylinder, means for guiding said pushers in their longitudinal movement, means for connecting said pushers so as to cause them to move in unison, and an operating stein for imparting longitudinal movement said pushers.

8. he combination-0t the needle cylinder .1 -itting machine, a pair of pushers on opposite sides of the axis of the same for acting upon the knitted web depending in said cylinder, means for longitudinally moving said pushers, and means for adjusting the length of one of the pushers in respect to the other.

9. The combination of a knitting machine needle cylinder, at pusher rod for acting upon the knitted web depending in said cylinder, a cam formation on said rod, and a guide therefor which, as the rod is moved longitudinally through it, also'acts upon the cam formation to cause transverse movement of the rod.

1G. The combination of the needle cylinder 11. The combination of the cylinder of a knitting machine with a pusher therein for acting upon the knitted web depending in said cylinder, said pusher having a forked 5 upper end over which the knitted web passes, means for imparting longitudinal movement to said pusher, and means for also imparting transverse movement to the forked head of the pusher as it approaches the termination of its longitudinal movement. 10

In testimony whereof, I have signed my name to this specification.

LOUIS N. D. WILLIAMS.

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