US1251586A - Knitting-machine. - Google Patents

Description

Patented Jafl.1,1918..

ROBT. W. SCOTT R. W. SCOTT.

KNITTING MACHINE.

APPLICATION FILED MAR. 11.1911.

z INVENTOR WITNESsES DY HIS ATTOR-NEYJ/RMI UNITED STATES PATENT OFFICE.

ROBERT W. SCOTT, OF LEEDS POINT, NEW JERSEY. ASSIGNOR TO SCOTT 8t WILLIAMS, INCORPORATED, A CORPORATION OF MASSACHUSETTS.

KNITTING-MACHINE.

Specification of Letters Patent.

Patented Jan. 1, 1918.

To all whom it may concern Be it known that I, ROBERT W. SCOTT, a citizen of the United States, residing in Leeds Point, Atlantic county, New Jersey, have invented certain Improvements in Knitting-Machines, of which the following is a specification.

My invention relates to a knitting ma.- chine employing spring beard needles, the object of my invention being to so construct such a machine that the feeding of the knitting yarn to the needles and the closing of the beards of the latter can be effected by mechanism of a much simpler character than that usually employed, the size of the stitches'being dependent upon the draft of the needles as in an ordinary latch needle knitting machine.

In the accompanying drawing I have illustrated the application of my invention to a machine of the type shown in theMayo Patent No. 726,178, dated April 21, 1903.

Figure 1 being a vertical sectional view of sufiicient of the machine to illustrate those parts of the same to which my invention particularly relates, the needle being" shown in the position to which it is elevated during the knitting operation;

Fig. 2 is a similar view showing the needle partially retracted and the beard closed;

Fig. 3 is a plan view illustrating the means employed for operating the ring which carries the yarn feeder and beard closer;

Fig. Tie a view on a diflerent scale from Fig. 1 illustratingthe relation of the knitting cams, yarn guide, and heard closer in respect'to one another when the machine is running in one direction, and

Fig. 5 is a similar view illustrating the relation of the parts when the machine is running in the opposite direction.

In the drawing, 1 represents part of the needle cylinder of the machine, grooved externally for the reception and guidance of the needles 2 which are of the spring beard type, the upper portion of the stem of each needlebeing bent or offset outwardly below the heard, so that said bearded portion of the needle is in advance of the main stem, as shown in Figs. 11 and 2.

The needles are intended to be vertically reciprocated by any suitable mechanism, such for instance as the cams w, w, Figs. 4

mounted upon the ring '3 and having motion imparted to it by the means shown in the Mayo patent or any other equivalent devices. In drawing the stitch, the new yarn first rests upon the highest horizontal face of the web holding jack 4:, that is to say on the top of the hook of the same, until the beard of the needle has been closed by the presser, as shown in Fig. 2. The web holder is then withdrawn, as in the machine of the Mayo Patent, 726,178, above referred to,'and the loop isdrawn down on to the next lower horizontal face of the web holding jack.

The needle continues its downward movement, the termination of such movement bringing the hook of the needle so far below said last mentioned horizontal face of the web holding jack as to determine the size of the stitch, in the same manner as alatch needle, the web holder being then projected, as in the machine of the Mayo patent, so as to knock the stitch over the needle hook and subsequently act to prevent the rise of the stitch with the needle on the next projection of the latter. It will be noted that the hooks of the needles are relatively open so that the knitting yarn may reeve freely through the same in order to properly supply yarn to the stitch whichis being drawn by a preceding needle.

At the top of the machine is a ring 6 which carries the yarn guide 7, the latter having, at its lower end, a projecting finger 7 with yarn guiding eye, the latter serving to deliver the yarn in front of the needles 2 and just below the offset portions of the same when said needles are lifted to the yarn receiving position shown in Fig. 1. The ring 6 is rotated or reciprocated with the cam cylinder 9'by reason of the contact of one or other of a pair of drivers 10 on said cylinder with a pin 11 projecting from one of the supporting standards of the ring 6, as shown 1n Fig. 3, the drivers 10 being properly spaced so as to provide the necessary lost motion for insuring the. proper lead or the yarn guide over the needle actuating cams when the direction of motion of the machine is reversed, as shown in Figs 4: and 5.

To the ring 6 is also secured a beard presser 12 having, by preference, a beveled is hanging on the shanlcof theineeclle, forward movement ofthe beard presser then takin it out-of contact. withthe heard, so thatt e latter is not acted upon by the beard resser during the further retraction or subsequent risinginovement of the needle. The knitting yarn which has beenlaid by the yarn feeder Tin front of the needle stems is, as each needle is-retracted, caused to cling closely to the face of-the forward swell or bend inthe needle stem-and hence passes freely intothe open heard as the needle descends, the beard being then closed so as to pass through the previous stitch and the loop of new yarn being drawn down through the latter as it is cast ofli' from-the top otthe need-3e, asv inthe ordinary operation of spring beard needles. c i

The beardpresser 12 moves with the yarn guide in shifting its position in respect to i the knitting cams when the direction 01" mo-= tion of the mach ne is reversed, thus in Fig.

4 the beard Presser-bears such relation to the said knitting cams that it will properly act toclose the beards of the needles when the latter-are being retracted by'the action of the right handside of the retracting cam 02, while in Fig. 5 thebeard Presser bears hpOlllb of the heard with a yarn carrier bearsuch relation to the knittingcams that it will act to close the beards of the needles when the latter are-being retracted by the left hand side of said retracting carom.

i/lyinvention provides for the ready conversion of an ordinary latch needle knitting machine into springbeard needle chine by simply substituting i'or the latch" needles the special type of spring beard me If dies shown and described-and by providing the ordinary carrier ring for the yarn feeder with a yarn feeding device and-beard presser such as shown the drawing, all other operating mechanism of machine remaining the same as before.

"While I have shown my invention as ap-.

in ya knitting niaans are re .75? chine, of springbeard needles havingtheir beard-carrying portions ofi'set in. advance ofv the main stems, with a yarn guide hearing such relation to said ofiset portions of. the

needles that the-knitting yarn is laid, below 7 said ofis-et beards when, the needles have been projected to the yarn-receiving point.

52. The combination, 111a linittmgmachine, of spring beard needles having their beard-carrying portions ofiset in advance, of

the stems of the needles, a guide for feeding the knitting yarn to the needles at a point below said otlset beards when the needles are raised to receive the yarn,,and a beard resser which, as the needles are retracted,

1 acts upon the beards to close the same. 3., The combination, in a reversible knit ting machine, ofspringrbeard needles, camsv for reciprocating the same, a yarn guide carrier movable in respect to the cams so as to properly feed, the yarn. to the needles whether the machine is running to the right or to the left, and a beard presser mounted upon said yarn guide carrier and moving with it. v i

4. The combination, in a knitting machine, of spring beard needles having a forward bend orvoliset immediately below the ing such relation to said ofiiset portions of the needles as to lay the yarn in front of the name to this specification, in the presence of two subscribing witnesses.

; Witnesses: i l

KATE A. Bel-inns, 'Z l )JAMILTON D. l.

* fionieaoz this oliest he obtained. i'oi' five cents each-b addressing the fficmmisstoiicr of Peter-its,

Washington, 2

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