The next operation is stopping the motion of the spindles. This is effected by the worm d on the first-motion shaft, gearing with the worm-wheel d' on the end of a short shaft, which passes through the bracket d2, fixed to the headstock ; the opposite end of this shaft carries a earn da, which acts at the proper time upon the end of the catch d*, hooking on the end of the bracket d2. The opposite end of this catch is joined to the strap-lever cla, which carries the fork to guide the strap. When the catch d ' is hooked on the bracket d2, it retains the strap on the fast-pulley A. As the shaft makes one revolution during each stretch of the carriage, the cam d' is so adjusted as to act at the proper time upon the catch d', liberating it from the bracket d2, when a helical spring is made to act upon the strap-lever cis, shifting the strap on to the loose-pulley B. The lower end of this lever binges on a stud, fixed in the frame side, and, at this point, it branches off for a short distance, in a horizontal direction, towards the back of the frame, passing under a short projection from the backing-off lever d°. This projection rests upon the branch of the strap-lever ; its office is to prevent a shock when putting the backing-off cones into gess as the strap leaves the fast pulley. The backing-off lever oscillates on a stud fixed in the frame. On the upward branch of the lever, is a loose stud d7, which is secured to one end of a screwed rod, by means of two nuts, so as to be adjustable ; the other end is attached, by means of a small stud, to one end of the horizontal lever d°, the middle portion of which fits the ring-groove on the boss of the conical friction-pulley, by means of which the latter is brought into frictional contact with the internal cone of the backing-off wheel 63, on the main driving-shaft, and is thus made to revolve in an opposite direction to the main driving-shaft, by the bevel-wheel, on the boss of the loose-pulley B, as before shown. Thus, when the friction-cones are brought into contact, combined with the motion of the pulley Al and the main driving-shaft, the change reverses the revolution of the spindles. As soon as the backing-oft commences, the ratchet-wheel j, which is keyed fast on the tin roller-shaft, is carried round with it. On the boss of this wheel, a ring-groove is turned, which is clipped by a bent spring j', and the latter being carried round with it by frictional contact, its free end bears against the tail of a catch r, pressing it into gear with the ratchet-wheel j, which carries the last-. named catch and its stud with it. This stud is fixed in the disc 3, which runs loose on the tin roller-shaft J. The boss of the disc is formed into a spiral groove, increasing in diameter as it approaches the flange. A chain j° is attached to this boss, and, winding round the spiral groove, passes horizontally towards the front of the carriage, partially round a flanged carrier-pulley, fixed on the top end of the lever p5, then up to and over a short bent lever ps, and is fixed on the faller shaft p, being attached by means of a screw and wing nut, to adjust its length. This short lever pulls down the faller-wire to the apex of the cop. A lever p' is fixed on the faller, and, at its free end, is a stud, on which bangs the pendant bar p2. By the tirae the faller-wire s has attained the level of the points of the cops in process of formation, the foot of the pendant bar is drawn upon the top of the slide, with its anti-friction bowl resting on the eop-shaper R. A stud is fixed in the pendant bar, on which is placed the adjustable rod /94, the other end being attached to the upper extremity of a short lever, placed just within the carriage. The opposite end of this lever is connected with a short shaft, at the extremity of which is fixed another lever p3, which passes downwards beneath the carriage. The free end of this lever is formed into a double or forked incline, sufficiently wide to fit the anti-friction pulley pe, which runs loose on a stud, fixed into the end of the lever p7. This fork presses down the friction-pulley, which carries with it the lever p7, tbe lower end of which is secured to the end of a short shaft, passing through a bracket, fixed to the lower portion of the frame. On the opposite end of this shaft, is fixed the boss of the lever p°, to which, at its lower extremity, is secured a stud ; to this stud is attached one end of a long rod p°, which passes to the back of the headstock. Near to its extreraity, is a stop-hoop, against which one end of a helical spring p'0 abuts, the opposite end pressing against the lower eud of the backing off lever GP, where the rod passes freely through, compressing the spiral spring p10. At its
extremity, is fixed a second stop-hoop p", which is fixed on the rod with set screws, being adjustable. The office of this stop-hoop is to disconnect the backing-off cones.
The inward movement of the pendant bar stops the further progress of tho faller-wire, and locks the faller to the shaper. The chain j4, being still in tension, draws the chain-pulley inwards ; acting upon the upper end of tbe lever p5, and upon the lower end of the lever p7 , move the long rod p° and stop-hoop p", carrying with them the backing-off lever which puts out of contact the conical friction pulley, when the backing-off ceases. On the upright shaft F, at the back of the headstock, is a cone friction-pulley F', one half of which slides on a key, fixed in the shaft; on its boss is a ring-groove. The other half runs loose upon the shaft, and, keyed upon its boss, is a bevel-wheel, which gears into a sirailar wheel on the scroll-shaft F2, which extends for some distance on each sido of the headstock. Two scrolls are fixed on this shaft, one of which is shown at Fs. A. stout rope h, made fast to the boss, is then wound round the scroll attached by its end to the carriage, and thus pulls it in. A second rope is attached to the other end of the scroll, and is wound round in an opposite direction, passing off at the under side, and along the floor to the front of the headstock, where it passes over a carrier-pulley, fixed to the frame, and then back to the front of the carriage to which it is attached. At the lower extremity of the lever p5 is fixed a stud, carrying an anti-friction bowl, on which the lever / rests while the backing-off is in progress; the boss of this is attached to tbe shaft /1, which passes along the floor to the back of the headstock. On this, is a second lever, having at its free end a fixed stud, on which is placed one end of a vertical rod /2, which is attached to the forked lever /3, the free end of which works in the ring-groove, on the boss of the loose half of the frictional cone-pulley FL, holding it out of contact. When the lever 1)5 drops down, taking with it the lever /, it allows its shaft to rock, which causes the lever at the back end of the shaft to fall, bringing the cone friction-pulleys into contact, which gives motion to the bevel-wheels and scroll-shaft, and " puts up," or draws in the carriage.
At the moment that the cone-friction is in gear, the mitre-wheel G on the back shaft H, gears into the mitre-wheel (4' on the side shaft G2. At the opposite extremity of the shaft, is a second pair of mitre-wheels, giving motion to the ehaft G', on the other end of which is keyed the spur pinion I, gearing into the spur quadrant-wheel I', which forma a portion of the radial arm I', oscillating on a stud fixed in the frame. A coarse-threaded screw T is mounted upon this arm, and on it is fitted a nut t, free to move up and down. To this nut, is attached a chain i, which, passing down, is wonnd upon the chain-drum and made fast. The chain-drum is cast in one piece with the spur-wheel and keyed on a short shaft, gearing into a spur-pinion ill on the boss of the dise i4, which runs loose on the tin roller-shaft j. A stud is fixed in the diso, which bears a catch is, that takes hold of the teeth in the ratchet-wheel 0, fixed on the tin roller-shaft J. A bent spring clips into the riug-groove, in the end of the journal 11, and its free end rests on the small catch i8, thus completing the connection between the quadrant and the tin roller, by means of which the yarn is wound upon the spindles.
When the backing-off is completed, and the faller-wire is down at the apex of the cop, the anti friction bowl at the foot of the pendant bar p' is resting on the lower part of the short incline, at the front of the shaper R. As the carriage, on running in, commences to wind the yarn on the cop, the bowl ascends the incline, further depressing the faller-wire to the base of the upper cone. The aotion of the parts is to unc,oil the chain from the wiucling barrel, which gives motion, through the spur and ratchet-wheels, to the tin rollers, and thence to the spindles. The quadrant moves round its centre rev., and gives lese chain, which increases the speed of the spindles, as the threads approaoh the apex of the cone of the cops.