US109793A - Improvement in knitting-machines and needles - Google Patents

Description

v.2 Sheets-Sheet 1.

A. W. ALLEN.

, KNITTING MACHINE AND NEEDLE. N0. 109,793.

' Patented Dec. 65,1870,

2 Shets-Sheet 2.

A. W. ALLEN. KNITTING MACHINE AND NEEDLE. No. 109,793. Patented Dec 6, 1870.

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a 1: CQ) (0 B A B i o g Nwgtfi LT \mmesmg Lmmmmm idtitzt titer AUSTIN W., ALLE N, OF INDIANAPOLIS, INDIANA.

Letters Patent No. 109,793, dated December 6, 187-0.

IMPROVEMENT lN KNlTTlNG-MACHINES AND NEEDLES.

The Schedule referred to in these Letters Patent and making part of the same.

To whom it may concern;

Be it known that I, AUSTIN W. ALLEN, of Indianapolis, in the county of Marionand State of Indiana, have invented certain new and nsefuLImprovement-s in Knitting-Machines; and I do hereby deciare that the following ia full, clear, and exact description of the constructionand operation of the same, reference. being bad to the annexed drawing making a part of this specification and to the letters and figures of reference marked thereon.

Figure 1 is a representation of a central vertical longitudinal section ofthe machine;

Figure 2 is a vertical transverse section of the same. Figure 3 is a side view of the devices for regulatmg the attachment and adjustment of the take-up wire.

Figure 4 is a central longitudinal section of these devices. Y

Figurc'5is a view of the drum, with its grooved .cap or thumb-nut.

Figure 6 is a top view'of my invention.

Figures 7, 8, and 9 are views of the needle detached.

My invention has relation to knitting-machines of the Lamb .patte'rn; and

It consists in certain. improvements, whereby the movement of the yarncarrier is regulated and the take-up Wire properly attached and adjusted. Also, in an Improvement in the needles.

A A'represent the outer bars of the sliding frame carrying the mechanism for feeding and regulating the tension of the yarn.

.B B is the needle-bed or central'stationary portion of the machine.

The knitting-needles q qwork-in grooves therein in the same manner as in the Lamb machine.

0 represents the vertical opening isfthe part B B, through which the knit-work descends. v

The ends of th bars A A are connected by the pieces 0 0. They rest upon B B, and slide under the gibs-g g.

The sliding frame has a horizontal reciprocating notion, just as in the Lamb'machine.

The mechanism for feeding and regulating the tension of the yarn is attached to the plate L L, which is fastened on the back bar A.

In feeding, the yarn passes through the holes in the front .end of the tension-stand E, as in the Lamb machine, except that in this case an opening, 1", is made at the side of the hole 0, so that the yarn can be passed into the hole sidewise without passing the end of the yarn through c.

This gives a quicker and more convenient way of threading the machine.

Inthis-maehine the yarn-carrier S is pivoted in rear at P, while its front end has a lateral movement in the slot a.

The object of this lateral play is to admit of holding back the frontend of the yarn-carrier when the, motion of the sliding bars A A is reversed, so as to give the needles time to rise before the yarn-carrier reaches them.

In this machine the mechanism for holding back the front end of the yarn-carrier I consider more simple, better, and less liable to derangement, than that used in the Lamb machine.

It is constructed as follows, namely: on the tops of the supports N N, which .are fastened to the ends of the needle-bed, two springs, s s, are fastened. 'Whenthe machine is in operation, the free ends of these springs are first forced upward by the passage of the yarn-carrier S under them, and then they descend, clasping the yarn-carrier and holding it back as long as the slot uwvill allow, when the motion of the sliding frame is reversed. The projections under the ends of'the springs s s are provided with incli'ne'd faces nnderneath, in the manner shown.

The yarn-carrier S is also kept from changing its position, except when actuated by the springss s, by the friction-spring a: 21:, which spring is placed in a bed in the-plate L L, under tbs, yarn-carrier S, with its convexside uppermost, and in contact therewith.

Again, an improvement is made in this machine,"

in the mechanism for the attachment and adjustment of the take-up wire y.

' The rear end of this wire is wrapped around [the drum Hof the thumb-nut or cap G, and,'when' the drum is placed in the thirnble F, the wire'g passes into the right-angled'slot w w.

The friction-screw f holds G and its drum 11in place.

In' the inside of the top of .the thumb-nut is a groove, n a, in which theprojection c from the thimble F fits, so that the drum H is always kept truly centered in the thimble F, and the wire y, having free play in the vertical part of the slotw w, is never thrown out of position.

The f xed solid block t in the groove n it prevents the thumb-nut G from being turned too far forward or back by its striking against the projection c. r A view of the side of the thimble F, with its slot w w, is given in fig. 3.

The reciprocating motion is given to the knittingneedles in the same manner asin the Lamb machine,

- the needle being raised and lowered .by traveling in the groove in, between the center earn K and the wing cams c'o.

The heel of the shank, which is bent at right an-- gles to the needle, is provided with an expansion of a diamond or square shape. This is designed to reduce the amount of wear and friction, and to prevent the point of the center cam from striking against and breaking the needles or needle-bed.

The yarn is kept in the eye by means of the wire a, which'acts in the nature of a spring .to close the openmg r.

This wire also serves as a check to hold the yarn when the slack is taken up in feeding the same.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with the reciprocating sliding 1 frame and. pivoted yarn-carrier, of the slotted adj ustable springs s s, to hold the yarn-carrier back when the motion of the sliding frame is reversed, substan- WM. K. H. PINNEY, A. M. ROBISON.

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