US926629A - Attachment for circular-knitting machines. - Google Patents

Description

H. HQWEST. ATTACHMENT FOR CIRCULAR KNITTING MACHINES.

' APPLICATION TILED OUT. 15,1908.

926,629, Patented June 29, 1909 QWAW v r. m i flttowwua v To all whorri'it mag) mam.-

UNITED T S PATENT 1 OFFICE,

HARRY 11. WEST, OF, PLYMOUTH, PENNSYLVANIA, assreNoa' OF ONE-Hm To WEST, sa, OFPLYMOU'VIH, PENNSYLVANIA.

I No. 926,629.

l 3e it known that I, HARE? H. WEST, a citizen of the United States, residing at Plymouth, in'the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Attach 'n ents for CircularTKnitting Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others" skilled 'in the'art to which it appertains to make and use the same."

This invention relates to an attachment for circular knitting'machines of that class in which a plurality of threads 'are fed to the needles to produce striped or reinforced work and'in which the threads thrown out of work remain "attached to the inner side of the tubular fabric. v v

The object of the inventior'r is t'oprovide simple and eificientmeans for taking care of the threads which are out of work and which in the continuedrevol'tion of the machine become twisted and entangled, tending to draw the fabric up through the cylinder and interfering with the successful work of the needles and they are also liable to draw and distort the loops of the fabric where the threads are attached to it or to break the ,thread away from the fabric in the case of tender arn'.

Anot er object of the invention is to provide a device of this character in which the parts are held ri id-in relation to each other to prevent sprea ing thereof by the catching of pieces of the yarn between them, which if v the parts 'are yieldable renders the device eventually inoperative.

WVith these and other objectsin view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a central vertical section of a circular knitting machine head provided with this improved attachment; Fig. 2 is a top plan view of a ortion of a cylinder head showing this attac ment ap lied; Fig. 3 is a front elevation thereof; .ig. 4 is aiperspective view of the attachment detached; and Fig. 5 is a transverse section thereof.

In the embodiment illustrated, this improved attachment issecured to the cam Specification of Letters Patent. Application filed October 15, 1908'. Serial No. 457,911.

receive a fastening screw, for-securing" jt t o wvhich terminates in a lateralgiex t'ensionf 5' cylinder and is rotated therewith by' tlie ordinary means. ,The threadfeeding devire may be of any ordinary farm.an 1,;as h re shown, three threads are employed."

The attachment comprises, an L -shaped member 1, the arm 2 of whiclii'sfaperturedlo the cam c linder and its other arrn'fi s be t downwar 1y to form a dependingfmenjibe 4' the bend in the arnr 3 is preferablyjormed diagonally thereof; as showncle'arly Fig. "4,: to ring the extension '5 in properposition to receive the thread when applied lwhereb yj the lateral extension 5 is arranged'to extend in frorit of the thread guidesas 6, andf'sp'ag'ed a suitable distance therefronilf Thisextenj sion 5'is provided with a longitudinally ex .tending roove 7 andthe free endthereof is 'preferab y beveled on its'u'pper face to pertween it and the complementarymenib'er 8,1

s ace said member 8 and the extension 5 A s ightly a art to provide forthe insertion of the threa s. Thls member 8 is provided on its lower face with a rib 10 which extends longitudinally thereof and is designed to cooperate with the groove 7 in the extension 5 and engage the threads, as 11 which pass between them from the guides 6 and prevent the twisting or entangling of said threads at the outer side or side adjacent to the cam cylinder of said attachment.

It will be understood that any number of threads may extend down the inside of the tube and in consequence of the revolutions of the machine become twisted, three threads only being shown in the. form herein illustrated, the threads. 11 shown in Fig. 2 being the floating threads and the thread 12 being the thread in operation for theknitting of the fabric. As the fabric feeds down through the cylinder, more yarn is drawn from the bobbins and the strands 1,1 are fed between the members 5 and 8 and by the cooperating groove and rib formed on the adjacent faces thereof are held separated as shown in Fig. 2 and are prevented from twisting on. the outer side of the attachment adj acent the cam cylinder.

75' mit the ready insertion ofthe:threads be connection with the accompanying drawings, the construction and operation of the invention will be readily understood without rewiring a more extended explanation.

arious changes in the form, proportions and the minor details of construction may be resorted to without departing from the principle or sacrificing an of the advantages of this invention as de ed in the appended claims. t

Having thus described and ascertained the nature of my invention, What I claim as new and desire to secure by Letters-Patent is:

1. ,In combination with a circular knitting machine having multiple feed devices, .of an engaging device for the floating or inoperative threads comprising superposed parallel members arranged inside the needle row: and secured together at their inner ends, one of said members having a groove extending longitudinally of its innerface, and the ad:

jacent member having arib for cooperation with said groove to prevent twisting or en tangling of the threads on one side of said device and a spacing member arran ed be tween said superposed members at t e connected ends thereof.

2. In combination with a man knitting machine having multiple feed devices, of an engaging device for the floatin threads comprising rigid super osed para el members arranged inside 0 the needle row and secured together at one end said members carrying on their adjacent faces cooperating means for preventing the twisting of the threads passing between said members and atone side thereof and a spacing member arranged between said superposed members at the connected ends thereof.

3. An attachment for circular knitting machines comprising an L-shaped member having one arm provided with means for attachment to the machine and the other arm bent downwardl and provided with a lateral extension, a rigid unyieldable member fixed to said extension and spaced therefrom, said extension and member being immovable relatively to each other and provided with cooperating means for preventing the twisting of the threads passing between them at one side thereof.

4. An attachment for circular knitting machines comprising an L-shaped member having one arm apertured for attachment to the cam cylinder and'the other arm bent downwardly on a diagonal line and/provided with a lateral extension, at rigidunyieldable member fixed to said extension and spaced therefrom and having its free end inclined upwardly and outwardly, having its free end beveled on its up er face, and said members being immova le relatively to each other and provided with coo crating means for preventing the twisting of the threads at one side thereof.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HARRY H. WEST Witnesses:

THOMAS A. WEs'r, IsmoR GHENI said extension

Images