US245178A - Edwabd b - Google Patents

Description

I (No Model.) I N B. E. KILBOURN.

STOP MOTION FOR CIRCULAR KNITTING MACHINES.

No. 245,178; v Patentd' Au 2; 1881.

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N. PETERS. Pmwumu n w, Washington. D. c.

. UNITE :PATENT- OFFICE.

.EDWARD E. KILBOURN, on NEW eeuuswlcm-unw-Jnnsnr.

, STOPMOT|0N-FOR CIRCULAR-KNITTING MACHINES.

SPECIFICATION forming part of Letters'Pa tent Nd. 245,178, dated August 2, 1881.

Application filed April "1, 1881. (No. model.)

To all whom'it may concern Be it known that I, EDWARD E. KILBOURN,

and useful Improvement in Knittin g-Machines,

of which the following is a full, clear, and exact description.

Figure l is an end elevation of one of my improved knitting-machines. Fig. 2 is a sectional front elevation of the same, taken through the line a: m, Fig. 1. Fig. 3 is a sectional side elevation of thesame, taken through the line 1 4 Fig. 2. Fig, 4 is a horizontal section of the same, taken through the line "22, Fig. 2, looking upward: Fig. 5 is a sectional elevation of the pattern-cylinder, showing the screw, driving-pins, and gearwheel in side elevation. Fig. 6 is a side elevation of the beveled-gear wheel that drives the knitting mechanism andits driving-clip, the shaft and the driving-lugbeing shownin section.

The object of this invention is to stop the knitting mechanism of a knitting-machine automatically in knitting striped goods when a stripe of the desired width has been'formed;

A represents the frame, and B thetable, of a knitting-machine. I

G is the driving-shaft, upon which is placed a beveled gear wheel, D, upon the side of which is formed, or to it is'attached, a lug or pin, E, in such a position as to be struck bya clip, F, secured to the shaft '0, so that the gear-wheel D will be carried around by and with the shaft 0 in its revolution. of the beveled-gear wheel D mesh into the teeth of a beveled-gear wheel, Gr, connected with and giving motion to the knitting mechanism H.

In the hub of the beveled-gear wheel D is formed a ring-groove, I, to receive ashoe, J, connected with the lever K, the inner end of which is pivoted to the lower side of the table B, or to a support attached to thesaidtable. The outer part of the lever K projects through an L-slot in the forward flange of the table B. As thus far described there is nothing new in the construction.

I construction the gear-wheel L and the mech- The teeth anism connected therewith will stop when the gear-wheel D is thrown out of gear with the gear-wheel G, and will not be rotated by the driving shaft O, that revolves continuously. The rear side of the gear-wheel L is concaved, and in the space thus produced is formed a small beveled-gear wheel, M, the teeth of which mesh into the teeth of a larger beveled-gear wheel, N, attached to a short shaft, 0. The drive-shaft O thuscarries the wheel D, which turns the I wheel G, that revolves the loose wheel L, with the pinion M attached thereto, so as to actuate the wheel N. The shaft 0 works in bearings in the upper part of the small frame P, attached to the table B.

To the'outer part of the shaft 0 is attached a hub carrying three arms, Q R S, one, Q, of which strikes the inner arm of theforked upper end of the lever T and moves the upper end of the said lever inward. The second cam, R, strikes the outer arm of the said lever and moves the upper end of the lever T outward. The upper end ofthe lever T isthus moved in both directions with a positive'movement. The two cams Q R are not in the'same vertical plane, and the arms of the'lever T are made with lateral offsets in opposite directions, so that eacharm canbe struck only by its own cam. The lower end of the lever T rides upon and is secured to the hub of the ratchet-wheel X, secured to a screw, U, rigidly attached to the lower part of the frame P.

To'the lever T is rigidly attached, or upon it is formed, an arm, V, to the end of which is pivoted a pawl, W. The pawl W engages with the teeth of a ratchet-wheel, X, which works loose upon the shank of the stationary screw U. The pawl W is made double, so that it can be reversed and made toturn the ratchetwheel X forward or backward, as may be required.

To the ratchetwheel X are attached two pins, Y, which pass through holes in the web of the cylinder Z, so that the ratchetwheel X will 'carry the cylinder Z with it in its revolution. In the hub of the cylinder Z is formed a screw-thread to fit upon the thread of the screw U, so that the cylinder Z will be moved forward and back bythe forward and rearward revolution of the ratchetwheel X. The shell of the cylinder Z is filled with holes a, which are arranged in a continuous spiral row, the pitch of the spiral row of holes being exactly the same as the pitch of the thread of the screw U. In the holes a are placed pins 1), which are arranged at such a distance apart as the width of the successive stripes in the stocking or other goods may require, the pins 1) thus forming a pattern of the desired striping. c is an arm, the lower end of which has aprojection formed upon it. The projection of the arm 0 rests upon the shell of the cylinder Z, and is beveled upon its inner and outer sides, so that when the said projection is struck by one of the pins 11 the lower end of the said arm will rise and pass the said pin, whether the cylinder Z be revolving forward or backward. The upper end of the arm 0 is rigidly secured to a rod, (1, which works in hearings in the frame P. To the rod dis attached the lower end of an arm, 0, to the upper end of which is attached the lower end of a spiral or other spring, f. The upper end of the spring f is attached to the table B, so that the tension of the said spring will hold the lower end of the arm 0 against the shell of the cylinder Z. The arms 0 a and the rod 01 operate as a bent lever, and will hold the outer end of the bar h above the range of the cam S until the said bar h is drawn down by the movement of the said bent lever c d c.

To the upper endof the arm a is pivoted the lower end of the bar 9, the upper end of which is pivoted to the inner end of the sliding bar It. The bar it is pivoted at its middle part to a support attached to the table B, and is slotted longitudinally to receive the said pivot, so that the said bar h will also have a longitudinal or sliding movement. The forward end of the bar h is rabbeted or made with a shoulder to receive the stop-lever K, as shown in Fig. 2.

Upon the inner or rear end of the bar It is formed a short arm, 1', which projects laterally, so that when the inner end of the said bar It is drawn downward the arm i will be struck by the cam S. With this construction, when one of the pins 1) strikes and raises the end of the arm 0 the inner end of the bar h will be drawn downward, and the arm i will be struck by the cam S and pushed forward.

The downward movement of the end of the bar It raises the stop-lever K out of the vertical arm of its slot, and the forward movement of the said bar It pushes the said stop-lever along the horizontal arm of its slot, throwing the mechanism out of gear until the operator has applied a thread of another color and has moved the stop-lever K back to its place. With this construction the stripes will all be of exactly the required width, thus relieving the attendant from the necessity of constantly watching the machine, so as to stop it at exactly the right time to change the yarn to a different color. When the pattern has been completed the double pawl W is reversed and the knitting is continued, forming the pattern in a reverse order.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the driving-shaft (J, the gear-wheel G, hat drives the knitting mechanism, and the stop-lever K, of the gearwheels D L M N, the cams Q R S, the forked vibrating lever T, the reversible pawl W, the ratchet-wheel X, the stationary screw U, the pattern-cylinder Z, having spirally-arranged holes in its shell, and the pins b, the bent le' ver 0 d e, the springf, for holding the lower arm of the bent lever c d 0 against the patterncylinder Z, the connecting-bar g, and the pivoted sliding bar h, substantially as herein shown and described, whereby the knitting mechanism is thrown out of gear automatically at fixed times, as set forth.

2. The combination, with the cams Q R, of lever T, ratchet-wheel X, pattern-cylinder Z, and reversible pawl W, for the purpose of reversing the pattern-cylinder, as described.

3. In a knitting-machine, the combination, with the pattern-cylinder Z, having the pins b applied thereto, of the bent lover a d e, the spring f, the connecting-bar g, the sliding pivoted bar h, having the arm 2', the lever K, and the cam S, as set forth.

EDWARD E. KILBOURN.

Witnesses:

JAMES T. GRAHAM, G. SEnGwIoK.

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