the warps or yarns, during the operations of the machine. As the roller d, d, revolves, in giving off its threads or yarns, to supply the operative parts of the machine, it carries round with it the fixed ratchet-wheels 36, 36, and, consequently, the clicks or palls 38, 38, and through them the loose weighted pullies 37, 37; but, in order to prevent several coils of the cords 40, 40, being formed around their peripheries, and thereby increasing the tension upon the threads or yarns, owing to each coil removing the weights further from the centre of the roller, the tails of the clicks or palls 38, 38, will, when the roller has performed a certain portion of a revolution, arrive in contact with the fixed stops or tappets 41, 41; by which means, they will be caused to turn upon their centres 39, 39, and thereby be liberated from the teeth of the ratchet-wheels 36, 36; when the weighted cords 40, 40, will turn the loose pullies 37, 37, round a portion of a revolution in the reverse direction, thereby uncoiling that portion of cord which has been wound up, the weights 40, 40, descending, until the clicks 38, 38, by means of their counter-balance weights 42, 42, again fall into the teeth of the ratchet-wheels 36, 36; and, in order that the weighted pullies 37, 37, may not receive a sudden check, when the palls 38, again fall into the teeth of the ratchet-wheels 36, 36, the surfaces of the wheels 36, and 37, are brought together by means of a tightening screw, in order to create a sufficient friction to allow the weight to fall gradually.

It will be perceived, that these appendages to the warproller are placed at each of its ends; and they are so arranged, that when the click 38, of one pulley 37, is liberated from the ratchet-wheel 36, the other has traversed but one-half of its extent of rotation, thereby causing the movement, for liberating the pullies 37, 37, and uncoiling the cords 40, 40, to take place at each end of the roller alternately.

The motion for taking-up the work on to the roller e, e, is effected in the following manner :—

43, 43, is a longitudinal bar, extending throughout the length of the machine, and is capable of moving up and

down in grooves or guides 44, 44, formed on the end framework of the machine, being supported therein by the work which passes under it, previously to being wound upon the roller e, as shewn in figs. 3 and 4.

The bar 43, is connected by means of links 45, to the lever 46, which lever, at one end, turns loosely upon the axis of the roller e, e, and at the other carries an anti-friction or truck-roller 47. As the work is produced, it allows the bar 43, 43, to fall, and, by means of the links 45, to carry the lever 46, with it, when the anti-friction or truckroller 47, will be operated upon by the cam 48, on the main shaft b, of the machine, by which means the click or pall 49, mounted upon the lever 46, will act upon the ratchetwheel 50, and thereby turn the work-roller e, round a portion of a revolution.

It will be evident, from this arrangement, that the workroller will, at all times, have a motion communicated to it in proportion to the quantity of fabric formed; for, should the machine increase in rapidity of action, the bar 43, 43, will descend lower, and, carrying with it the lever 45, allow the cam 48, to give an increased extent of motion to the click or pall 49, ratchet-wheel 50, and consequently workroller e.-51, is a retaining click, for the purpose of preventing the work-roller from running back, when the pall 49, descends.

The yarns or threads pass from the roller d, through a stationary guide or sley f, affixed to the frame-work, and from thence through another guide or sley g, which receives motion, in the way hereafter described. h, h, are spools or bobbins, carrying the threads or yarns intended to form the selvage of the fabric; and when the machine is adapted for making narrow pieces, they are to be placed, at intervals, along the front thereof.

i, i, i, i, are the series of needles, on which the threads or yarns are looped, in order that such loops, by interlacing between each other, may form the required knitted fabric. These needles are cast in leads, similar to those usually employed in warp-frames and other machinery of that class.

The leads of needles are attached, in the ordinary man

ner, or by means of screws, to the bar k, k, which bar is connected to the shaft 7, 7, by the arms m, m. The pivots of the shaft, l. are mounted in bearings, affixed to the levers n, n, which levers are keyed to the axis o, 0, 0, turning in plummer-blocks at p, p. Links q, q, are connected, at their front ends, to pivots or studs r, r, affixed to the back of the needle-bar k, k, and at their back ends, vibrate on centres s, s, attached to the standards t, t.

The front ends of the levers n, n, carry anti-friction rollers u, u, which are operated upon by cams v, v, upon the main shaft b, (see fig. 3.) These levers n, n, are also connected by means of the pins or axles, carrying the rollers u, u, to the upper parts of the yoke-pieces w, w; which yoke-pieces are, in like manner, connected below, to levers x, x, turning on fulcrum centres x*, x*, and carrying antifriction rollers y, y; which last-mentioned rollers are operated upon by the cams ≈, ≈, on the main shaft. (See fig. 1.)

From this arrangement it will be perceived, that by rotary motion being given to the main shaft b, the cams v, v, will cause the levers n, n, to rise, and with them the needle-bar and needles i, i, which, at the same time, will also raise the yoke-pieces w, w, and rollers y, y. On the further rotation of the main shaft b, the cams x, x, will come in contact with the rollers y, y, and bring down the yoke-piece and the levers n, n, and with them the needles i, i, i, to their former position.

There are a series of moveable guides 1, 1, 1, through which the yarns or threads pass; and by the movements of which they are lapped around the needles i, i, i. These guides, like the needles, are cast in leads, after the ordinary manner of those used in warp-frames. The leads are attached, by screws, to the bar 2, which is made fast to the shaft 3, by means of arms 4. At one end of the shaft 3, (see figs. 2 and 5,) a tail-piece 5, is affixed, carrying a stud 6, which stud works in the forked end of the lever 7. This lever turns upon a centre or fulcrum-pin 8, and is connected, at its lower end, to the yoke-piece 9. Another lever 10, vibrating on a centre at 11, below, is connected, at its up

per end also, to the yoke-piece 9. Each of these levers is provided at 7*, and 10*, fig. 5, with anti-friction or truckrollers, which are acted upon by the cams 12, and 12*, as the main shaft b, revolves.

By this arrangement it will be perceived, that the revolution of the cam 12, will move the lever 7, 7, on its centre at 8, and, by means of the stud 6, and tail-piece 5, communicate motion to the shaft 3, and guides 1, which will cause the yarns or threads to be passed between the needles i, i, in a direction from front to back. On the further revolution of the shaft, it will bring the cam 12, in contact with the roller 10*, and thereby move back the yoke-pieces 9, with the levers 7, and consequently carry the guides 1, 1, to their former position, that is, from the back toward the front of the machine. Previously, however, to this returning movement of the guides, the guide-bar 2, has received a lateral or shogging motion, by the following means:—

A spur-wheel 13, on the main shaft b, takes into another spur-wheel 14, on the short back-shaft 15,-see figs. 1 and 2. At the end of the shaft 15, there is a bevil pinion, taking into a similar pinion, on an upright shaft 16. At the top of this shaft 16, there is also a pinion, taking into another pinion, on a transverse shaft 17; upon which shaft is affixed the cam or cut-wheel 18. This cam works against an antifriction roller 19, carried by the pendant-lever 20, in which lever is the set-screw 21, bearing against the end of the shaft 3.

It will now be seen, that rotary motion being communicated to the cam 18, through the train of wheels and pinions just described, the end of the shaft 3, will receive lateral pressure from the indentations or cuts upon the cam, and the spring 21*, at all times pressing against the other end of the shaft 3, and keeping it in contact with the cam 18, lateral or shogging movements will be occasionally given to the shaft, and consequently to the guides 1, 1, 1, according to the indentations upon the cam. By this lateral or shogging movement of the guides taking place, after the threads have passed between the needles, and previously to the guides and threads returning to their first position, the

loops or coils, for forming the meshes of the fabric, are produced round the needles; and it will be perceived, that the sley g, g, g, which keeps the threads separate, is attached to the guide-bar 2, and consequently partakes of all the motions applied to the guide-bar 2.

The presser-bar 22, at stated intervals, presses against the beards of the needles i, i, i, in a similar manner to the operation of such presser-bars, in the ordinary warp-machinery; and the means by which this is accomplished will be seen best in figs. 3 and 4.

A longitudinal shaft 23, extends throughout the width of the machine, turning in bearings, affixed to the end framework; on this shaft are fixed the arms 24, 24, which carry the presser-bar 22, capable of adjustment, by set-screws, as shewn in the drawing.

Two vertical levers 25, 25, are affixed, at their upper ends, to the shaft 23, carrying anti-friction rollers 26, 26, at their lower ends, which rollers are operated upon by cams 27, 27, mounted on the main shaft b, b.

Springs 28, 28, are fixed to the frame-work of the machine, and press, at their upper ends, against tail-pieces, extending from the arms 24, 24.

The rotation of the cams 27, 27, operating upon the rollers 26, 26, of the levers 25, 25, will turn the shaft 23, round a portion of a revolution, thereby bringing the presser-bar 22, forward, into contact with the beards of the needles i, i, i, the springs 28, 28, returning it to its former position, when allowed to do so by the further rotation of the cams 27, 27.

A series of instruments 29, 29, called hooks or crutches, (supplying, in some respects, the place of "sinkers," employed in the ordinary warp-frame, as will be hereafter explained,) are cast in leads, in the same manner as the guides and needles. Each hook or crutch is placed opposite to a space between the needles. The leads of these hooks are attached, by screws, to the longitudinal vibrating bar 30, which is mounted upon the rocking-levers 37, 37. These rocking-levers carry anti-friction rollers 32, 32, against which the peripheries of the cams 33, 33, act, as the shaft b, re