US1007629A - Dial connection and cutting attachment for knitting-machines. - Google Patents

Description

G. L. BALLARD.

DIAL CONNECTION AND CUTTING ATTACHMENT FOR KNITTING MACHINES.

APPLICATION IILIID APR.26,1911.

1,007,629, Patented Oct. 31, 1911.

UNITED STATES PATENT OFFICE.

GEORGE LAWSON BALLARD, OF NORRISTOWN, PENNSYLVANIA, ASSIGNOR TO WILDMAN MFG. ('30., OF NORRISTOWN, PENNSYLVANIA.

Specification of Letters Patent.

Patented Oct. 31, 1911.

' Application filed April 25, 1911. Serial No. 623,257.

To all whom it may concern Be it known that I, GEORGE L. BALLARD, subject of the King of Great Britain, and resident of Norristown, Pennsylvania, have invented certain new and useful Improvements in Dial Connections and Cutting Attachments for Knitting-Machines, of which the following is a specification.

My invention relates to circular knitting machines having a dial and a cylinder, and it concerns particularly the combination with said parts of means for cutting the fabric as it passes from the needles, the said cutting means being located at the point where the cylinder and dial are connected together to be'held in fixed relation to each other, so that the fabric, as severed by the cutting means, passes down in its divided state a portion on each side of the said connecting means between said cylinder and dial.

The invention consists in the features and combination and arrangement of parts hereinafter described and particularly set forth in the appended claims.

In the accompanying drawings Figure 1 is a sectional view of a cylinder and dial with the invention associated therewith; Fig. 2 is a bottom plan View of Fig. 1.

In these drawings, 1 is the needle cylinder, 2 the dial, and 3 the center post. The dial and cylinder are held in fixed relation to each other by arms 4 extending substantially radially outward from a sleeve or collar 5 which surrounds the sleeve or hub 6 of the dial, the said collar 5 being fixed to the dial by screws, one of which is indicated in Fig. 1 at 7 in dotted lines, passing through the dial plate into lugs on the collar 5. These outwardly extending arms fit at their outer ends within notches 8 of a ring 9 secured to the needle cylinder, and therefore the cylinder and dial will be held in fixed relation to each other. These outwardly extending arms also form supports for cutting devices, and each of these cutting devices includes a fixed blade 10 clamped within the arm 4 by a screw or bolt 11. Each of these fixed cutting blades 10 has associated therewith a movable cutter 12 in the form of a disk mounted upon a lever 13 pivoted to the arm 4 at 14, said lever having an upwardly extending arm, and a lower yoke portion at 15 which embraces the lower edge of the arm 4:, so that its arms come up on each side thereof to be engaged by the pivot pin. Each lever 13 has an arm 16 extending inwardly therefrom and one to each side of the hub of the dial, and each arm has a roller bearing upon the incline 17 of the cam disk 18 which is fixed to the lower end of the post 3. Springs 19 keep the levers 13 retracted and also keep the rollers in contact with the cam 17. The post 3 is connected in the usual manner to the upper cross yoke of the knitting head, and rotates therewith and with the cam rings.- It will therefore be understood that as this post rotates with the cam 18, the levers 13 carrying the cutting disks 12 are given an oscillating movement, so that as the tubular fabric passes down from the needles, it will be cut by the action of the cutting disks 12 in cooperation with the fixed cutters 10, and the fabric will thus be divided at substantially diametrically opposite points, and the divided portions will pass down on each side of the arms 4, and the fabric thus cut will be used, as well known in the art, for various purposes. While I have describedaconstruction which I consider the best for the purpose intended, it will be understood that I do not wish to limit myself to the details shown and described. For instance, while I have shown two sets of cutting devices and two outwardlyextending arms for connecting the cylinder and dial, one set of these devices may be employed.

I claim as my invention:

1. In a circular knitting machine a needle cylinder, a dial, a connection between the dial and the cylinder to hold the dial in fixed relation to said cylinder, and means for dividing the fabric adjacent said connection to pass down on each side thereof, substantially as described.

2. In combination in a circular knitting machine, a cylinder, a dial, an arm connect ing the cylinder and dial to hold them in fixed relation, and a cutter supported on said arm for severing the fabric to pass down on each side thereof, substantially as described.

3. In combination in a circular knitting machine, a cylinder, a dial, an arm connecting the cylinder and dial to hold them in fixedmelation, and a cutter supported on said arm for severing the fabric to pass down on each side thereof, said cutter ineluding a fixed blade and a movable blade with means for operating the latter, substantially as described.

4. In combination in a circular knitting machine, a cylinder, a dial, an arm connecting the cylinder and dial to hold them in fixed relation, and a cutter supported on said arm for severing the fabric to pass down on each side thereof, said cutter including a fixed blade and a movable blade With means for operating the latter, said means including a cam and the rotary central post connected to said cam for operating the same, substantially as described.

5. In combination in a circular knitting machine, a needle cylinder, a dial, connections between the dial and cylinder at diametrically opposite sides thereof and a pair of cutting devices disposed at said diametrically opposite points Within the cylinder for severing the fabric at said two points as it passes down from the needles.

6. In combination a cylinder, a dial, a central rotary post, a sleeve surrounding the sleeve of the dial and having arms engaging the cylinder, a fixed cutter on each of said arms, an oscillating lever on each of said arms, a cutting blade carried by each lever, and a cam connected to the rotary post for operating the levers, substantially as described.

In testimony whereof, I afiix my signature in presence of tWo Witnesses.

GEORGE LAlVSON BALLARD.

\Vitnesses FRANK B. WILDMAN, EDITH G. FRIcK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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