US1479543A

US1479543A - Sylvania

Info

Publication number: US1479543A
Authority: US
Publication date: 1924-01-01
Anticipated expiration: 1941-01-01

Description

Jan. 1, 1924 1,479,543

K. HOWIE ET AL YARN FEEDING MEANS FOR KNITTING MACHINES Original Filed Feb. 21. 1920 2 Sheets-Sheet 1 Daren/tors.

Jfirnnetk Jfowje MZz'ZZz'arn 0.22 107;

Jan. 1, 1924 I 1,479,543

\ K. HOWIE ET AL YARN FEEDING MEANS FOR KNITTING MACHINES Original Filed Feb. 21, 1920v 2 Sheets-Sheet 2 I nuent'ors: Jfenneth Jfowie, g,

Patented Jan. 1, 1924.

assa umrao srarss Meme-mm KENNETH HOWIE, OF NORRISTOWN, AND WILLIAM O. TAYLOR, OF LIMERICK, PENN- SYLVANIA, ASSIGNOBS TO WILDMAN MFG. (30., 0F NORRISTOWN, PENNSYLVANIA,

A CORPORATION OF PENNSYLVANIA.

YARN-FEEDING MEANS FOR KNITTING MACHINES. i

Original application filed February 21, 1920, Serial No. 360,440. Divided and'this application filed 1 August 8, 1921. Serial No. 490,648.

' To all whom it may concern:

Be it known that we, KENNETH HOWIE and WILLIAM O. TAYLOR, citizens of the United States, and residents of Norristown and Limerick, respectively, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Yarn-Feeding Means for Knitting Machines, of which the followlng is a specification,

Our present specification is a division of that filed by us Feb. 21, 1920,'No. 360,440, and concerns particularly means for feeding yarn to the knitting instruments of a c ircular knitting machine.

The invention consists in the features and combination and arrangement of parts hereinafter described and particularly pointed out in the claims.

In the accompanying drawings v Figure 1 is a vertical sectional view taken radially of the machine, some of the parts being shown in elevation.

"Fig. 2 is a front view lookingfrom the center of the machine radially outwards, showing the yarn guide and some of the web holders or sinkers.

Fig. 2 is a detail view looking from the bottom of Fig. 2.

Fig. 3 is anenlarged view of the end of the yarn guide and a portion of a combined web holder and sinker.

Fig. 4 is a lan view of one of the sections of the knltting machine.

In these drawings 1 is the needle cylinder which in the present illustration is the rotating part and 2 is the cylinder cam ring, The spring beard needles are shown at n, there being a single row of these. 4 is the sinkerring which is mounted on the needle cylinder and carries radially slidable sinkers 5, which also perform the function of web holders, being constructed for this two-fold purpose with a yarn engaging and sinking nose 6 and a web engaging and holding throat 7 thus combining in one instrument .1 web holder member and a sinker member.

Individual needle beard pressers are shown at 8, held in place by a spring band 9 engaging their notches 10 so that the pressers can have rocking movement to advance to and retract from pressing position.

The thread guide consists of sheet metal member 4.0 bent back upon [itself with a space between its two sides for the passage of the yarn.

This thread guide is carried by an arm or member 41 pivoted at 42 to a block 43 secured to the cam ringL The arm has a broadened upper end curved over at 44 and having guideeyes 45 for the yarns. The

pivoted arm is held in position against a' stop pin 46 by a spring pin 47 having a conical end engaging a corresponding recess in the arm. Pressure exerted uponthe arm sufficient to overcome the holding force of the spring pin will throw the arm with its yarn guide backward and lift the yarn guide 41 from its yarn feeding position, shown in Fig. 2. 7 It will be noticed that the end of the yarn guide when in normal position is in the same horizontal plane in which the sinkers are arranged, but as shown in the plan view, Fig. 4, when the sinkers arrive at the position where the yarn guide is located, they are retracted as indicated by the sinker waves, 8, in saidFig. 4, so as to pass outside of the said guide,after which the sinkers are advanced as at s 'to sink the yarn between the needles. The edge of the yarn guide is inclined downwardly at 41 and should a sinker, by reason'of breakage of its butt, not be retracted to proper position and therefore strike the yarn guide, the latter will be swung up into the position substantially as indicated in dotted lines in Fig. 2, and the yarn will be lifted from feeding position and its normal draft will be reduced and the stop motion therefore will be operated to stop the machine.

As an example of a suitable stop motion which may be used for this purpose, we would mention that disclosed in Letters Patent of the United States No, 1,316,929, Sept. 23, 1919.

We have illustrated herein at A, Fig. 1,

below the division piece 41 which lies between the sides of the yarnguide and is riveted or pinned thereto.

The relation of the yarn guide (when in operative position) to the sinkers is shown in Figs. 1, 2 and 3. The two yarns are kept widely separated as they emerge from the yarn guide arm and thus they will be positioned in definite relation in the recess of the sinker nose as indicated in Fig. 3. The yarn guide reaches down to a point where the upper yarn feeds at a slight angle downwardly to the sinker nose. The sinker nose is blunt and provided with a shallow recess. No special reliance is placed on the incline of the sinker nose to catch and direct the yarn downto the bottom of the recess in the nose because the yarn feed finger positions the yarn at about the level of the said sinker recess. By reason of this the length of strokefof the sinker is kept at a minimum As shown in Fig.1, the yarn guide is arranged at a slight inclination so that its lower end will be positioned close to the stem or" the needle. V

The forwardly extending arm 40 of the yarn feed finger extends along the row of knitting instruments and substantially tangential to the needle row. It pivots about an axis substantially radial to the machine, and it is mounted at the inner edge of the sinker ring. Its upwardly extending arm 11 serves as a handle by which. its forwardly extending arm may be elevated, as shown in Fig. 2, to be readily threaded after the yarn has been conveniently threaded through the guide'jeye or eyes 45.

The upper portion 44 of the yarn guide memberCOnstituteS a handle by which the yarn guide ,may be tipped up or down. When tipped to the position shown in dotted linesin Fig, 2, the guide is in position for easy threading.

Features disclosed but not claimed herein,

have been made the subject of patent No. 1,445,767 of February 20,1923, and applicationli 'o. 190,647 filed August 8, 1921.

1. In combination in a knitting machine, needles, cams for operating the needles, a yarn guide pivotally supported and having a portion extending in front of the needles, and in a direction, from its pivot, along the needle row, and an upper portion extending upwardly and having its upper end turned to overhang the lower portion with a yarn guide eye through the said turned portion, substantially as described.

2. In combination in a knitting machine, needles, cams foroper'ating the needles, and a yarn, guide consisting of a flat strip of metal bent backupon'itself and set up on edge, a spacing member between the side walls of tl fi said I guide near the front turned end thereof, said spacing'f' member narrates serving as a bearing for directing one yarn, and the front turned end of the guide from which the spacing member is separated serving as a bearing for the other yarn, substantially as described.

in combination in a circular knitting machine, a row of needles, a web holder or sinker ring outside the row of needles, web holders or sinkers, and a yarn guide pivotally mounted at the inner edge of the web holder ring and comprising an arm extending along the needle row fromits pivotal point and transversely of the radial planes of .movement of the web holders, substantially as described.

a. In combination in a circular knitting machine, a row of needles, a web holder or sinker ring outside the row of needles, web holders or sinkersfand a yarn guide pivotally mountedat the inner edge of the web holder ringandcomprising an arm extending along the needle row from its pivotal point and transversely of the radialplanes of movement of the web holders, said yarn guide having a handle portion extending up therefrom, by which said forwardly extending arm can be tipped up when desired, substantially asdescribed.

.5. In combination in a circular knitting machine, a row of needles, a .webv holder or sinker ring outside the row of needles, web holders or sinkers, and a yarn guide pivotally mounted at the inner edge of the web holder ringan'd comprising'an' arm extending along the needle row from its pivotal point and transversely of the radial planes of movement of the web holders, said yarn guide having a handle portion extending up therefrom by whichsaid forwardly extending arm can be tipped up when desired, said handle portion having a guide eye for the yarn to direct it to the yarn guiding portion of the forwardly extending arm, substantially as described.

6. In combination ina knitting machine, spring beard needles, and a yarn guide pivotally mounted on' an axis inclining upwardly and inwardly towards the needles, said guide extending from its pivot along the needle row and having a guide eye at its free end to feed the yarn below the beards, said guide eye moving in a; plane inclined upwardly and outwardly from the front side of the needles when theyarn guide is raised, substantially as described.

7. In combination in a knitting machine, needles, cams for operating the needles, a

yarn guide pivotally mounted and having a portion extending in front of the needles, and in a direction from itspivot, along the needle row with a guide for the yarn at its free end, and having also a portion extending, upwardly to serve as a handle for swingingthe guide on its pivot, said handle, portion having a guide for directing the yarn to the guide first mentioned, substanally movable instruments operating between the needles, a yarn guide pivotally mounted and extending from its pivot along the needle row, in the direction of travel of said row above the plane of travel of the said H! instruments, and having its yarn delivery end extending into said plane, the said instruments being retracted at the point where they pass said delivery end, and said yarn guide moving away from normal position as a result of contact with a disabled in- 1 strument, substantially as described.

In testimony whereof, we affix oursignatures;

KENNETH HOWIE. WILLIAM O. TAYLOR.