US1200820A - Self-acting spinning-mule. - Google Patents

Description

, R. A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED JULY 14. 1915.

1,200,820. Patented. Oct. 10,1916.

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R. A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED .IULY I4, 1915.

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R: A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED JULY 14. I915.

1 00,820. Patented Oct. 10, 1916.

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R. A. DUPONT.

SELF ACTING SPINNING MULE.

APPLICATION FILED JULY I4. 1915- d y l I l Patented Oct. 10,1916.

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R. A. DUPONT.

SELF ACTING SPINNlNG MULE.

-APPLICATION FILED JULY 14. 1915.

Patented Oct. 10,1916.

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SELF ACTING SPINNING MULE.

APPLICATION FILED JULY 14. 1915.

Patented Oct. 10, 1916.

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RENE ABEL DUPONT, 0F PARIS, FRANCE.

SELF-ACTING SPINNING-MULE.

Application filed July 14:, 1915.

To all whom it may concern Be it known that I, RENE: ABEL DUPONT, of Paris, France, have invented certain new and useful Improvements in Self-Acting Spinning-Mules, of which the following is specification.

This invention relates to improvements in self-acting spinning mules, which improvements have for object to maintain the strictly necessary length of the reserve of thread which is not wound on each cop of the mule when the carriage reaches the end of its inward run.

It will be advisable here to call to mind the fact that the keeping of the length of reserve of thread to the amount which is strictly necessary is very important in spinning machines, because the effect of this is on the one hand to prevent the formation of snarls, kinks, knots, and thick places in the threads, which occur if the reserve of thread is too great, owing to the spindles not having made a sufiicient number of revolutions to absorb the whole length of thread produced during the outward run of the carriage, or on the other hand to prevent breakages of thread which occur if the spindles tend to absorb a length of thread greater than that produced by the outward run of the carriage, because they then make too many revolutions.

Figure l of the drawings is a diagrammatic side view on a small scale of a selfacting spinning mule provided with the improvements forming the subject of the invention, the machine being shown with the carriage in the run-in posit-ion and the quadrant being in the corresponding position. Fig. 2 is a separate side view on a larger scale of the mechanism constituting the invention, this figure being extended over two sheets, the portion on sheet 3 being distinguished as Fig. 2. Fig. 3 is a rear view of this mechanism, partly in vertical section, Fig. 4 is a diagrammatic figure which permits of defining the expression reserve of thread to render the understanding of the system more clear. Figs. 5 and 5 show in elevation on a larger .scale than Fig. 2, a general view of the essential parts of the mechanism. Fig. 6 is a detail plan of parts shown in Figs. 2 and 5 and on the same scale as Fig. 2. Fig. 7 illustrates a detail of Specification of Letters Patent.

Serial No. 39,767.

the driving mechanism for the screw of the quadrant of the mule. Fig. 8 is a plan view on the same scale as Fig. 1, of some parts of the mechanism in the position they occupy when the carriage has run out about 20 centimeters. Figs. 9 and 10 show in two views at right angles to each other a free wheel of the driving mechanism for the screw of the quadrant. Fig. 11 shows on the same scale as Fig. 2 a parallelogram motion which forms an essential element of the invention. Figs. 12 and 13 illustrate a modified con struction of the parallelogram motion. Fig. 14 is a separate view' of the mechanism for raising the nut of the quadrant.

To facilitate the understanding of the invention it will be well first to state shortly the parts played by the counter-faller and the quadrant in a spinning mule and for this purpose to refer to Figs. 1, 2, l and 5. In these figures, 1 indicates the counter-faller, which has to stretch the threads during the winding up or copping, by acting upwardly against them from below; this counter-faller is formed of an iron wire which extends the whole length of the mule and is supported at intervals by arms 2 fixed on an iron shaft 3.

The length of thread supplied during the run out of the carriage of the mule is constant. As the winding up of the thread takes place first of all on paper tubes which are almost cylindrical, and then continues by conical layers to form the heart or core, the spindles 5 that carry the paper tube have to turn at variable speeds according as the winding or copping of the thread is at the commencing stage or is being made upon progressively increasing diameters. The quadrant 6 of the mule, which oscillates through 70 to 90, varies the length of the chain 7 which unwinds from the barrel 10 of the carriage and causes the spindles 5 to rotate during the run-in of the carriage. This chain 7 is attached to a nut 8 which can be moved by the operation of a screw 9 carried by the quadrant 6. The axle of the bar rel 10 mounted on the carriage carries, a toothed wheel gearing with the pinion 11, the axle of which carries long horizontal cylinders or drums 12 connected by cords 13 to the small pulleys let mounted on the spindles 5. When the carriage of the mule runs. in,

Patented Oct. 10, 1916.

in the direction of the arrow 4, Fig. 1, the barrel 1O unwinds a certain length of chain, the result of which is to turn 11, 12, 14 and the spindles 5, winding up on these spindles the length of thread which was produced by the outward run of the carriage. The length of chain 7 thus unwound from the barrel while the quadrant turns in the direction of the arrow 4 diminishes when the nut to which the chain 8 is attached rises.

At the commencement of the formation of the cops, the point of attachment of the chain 7 to the quadrant 6 is near the pivotal axis 15 of the quadrant, the nut 8 being down at the lo ver part of the screw 9. It is in this position of the chain 7 that this chain has its maximum length; this corresponds to the. period when the threads are winding on the paper tubes fitted on the spindles 5. In proportion as the cops are formed and increase in size by the threads wound on them, the nut 8 to which the chain 7 is attached must be raised in order to diminish the length of chain; the number of revolutions made by the spindles during the inward run of the carriage is thus reduced. If for example the spindles 5 make about revolutions for one run-in-ot the carriage at the commencement of the copping, they will only make 25 when the body of the cop is being formed, this having then a diameter of about 40 millimeters.

Usually the raising of the nut S on the screw 9 is performed by means of a crank handle 16 which actuates the screw 9. The attendant gives this screw 9 about hall a turn after three or tour journeys of the carriage at the commencement of the formation of the heart or foundation of the cops, then every live or six journeys and so on at the end of a longer and longer time .in proportion as the cop is formed.

If the point of attachment of the chain 7 on the quadrant 6 is too high, the length of chain unwound is too short and the spindles 5 do not make a sufficient number of revolutions to take up the entire length of thread produced by the outward run of the carriage.

Referring to Fig. 4, which is a diagrammatic figure showing only the relative position of the counter-taller 1 carried at the extremity of the arms 2, and of the faller 17 carried by bent arms 18, and of spindle 5, with a cop in course of formation, the length of thread comprised between the tangent point of the two drawing rollers and the spindle 5 when the carriage is completely run in, the thread passing above the counter-taller l and below the taller 17 to the spindle 5, is called the reserve of thread. The counter-taller arms 2 andthe taller arms 18 are shown in dotted lines in Figs. .1, Q-an'd 5.

lithe spindles do not make a sufficient number of revolutions in the inward run 01" the carriage to wind up the entire length of. thread produced by the outward run of the carriage, the length of thread 00 7 is too great, and this is manifested by too high a position 01 the counter-taller. If on the other hand the attendant leaves the attachment nut 8 of the chain '7 on the sector 6 in too low a position, broken threads may be caused, because the spindles 5 tend to absorb more thread than is supplied to them. To avoid this the attendant always has a tendency to run his mule with the attach ment of the chain 7 too high.

In existing mules when the carriage has reached the end of its inward run, a stop o abutment auses the counter-taller to descend, which resumes its position of rest be low the lever or sheet of threads; if there is then an excess oi thread not absorbed by the spirals oi thread wound 011 the bare spindle from the top of the cop to the top of the spindle this excess of thread is converted into snarls, kinks, knots and thick places.

The mechanism forming the subject of the invention and which has for object to keep the reserve of thread automatically to the strictly necessary amount when the carriage has completed. its inward run, is combined or arranged in such manner as to reduce this reserve, if it is too great, by causing the attachment nut 8 of the chain 7 to move down on the screw 9 of the quadrant 6, thereby educing the length of chain which unwinds from the barrel during the inward run 055 the carriage. Conversely the reserve oi thread is increased, if it becomes insuflicient, by the nnproved mechanism about to be described and which is combined with that which diminishes the reserve of thread when that is necessary.

When the inward run of the carriage takes place with the proper reserve of thread for the spindles 5, a roller 19 (see Figs. 1, 5 and 11) fixed at the end of a special guide 91 fixed on the shaft 3 of the counter-faller 1 (see the plan, Fig. 8) comes under a curved lever 20, 20, without actuating same, because this roller 19 cannot reach the said lever. But if the attendant has given too much thread by raising to too great an eX- tent the nut 8 which attaches the chain 7 to the sector 6, with the result that there has been less thread wound on the spindle and that the counter-taller 1 is too high at the end of the inward run of the carriage, the roller 19 raises the arm 20 of the lever 20 which then rocks in the direction of the arrow 136 (see Figs. 2, 5 and 11) on the stud 30 which is carried by a support fixed to the frame 31. The rocking of the lever 20 likewise causes an upper lever 22 to be rocked in the same direction (see Fig. .2) through the medium of the adjustable rod This adjustment is possible by means of the blocks 32, 32 through which the ends of the rod 23 pass and which are rigidly attached to trunnions 33, 33, one of which is movable in a slot 34. A pawl 24 in con tact with a fine toothed ratchet wheel 25 moves down, in consequence of this movement of the lever 22, for a certain number of teeth of the ratchet wheel, proportionately to the extent to which the counterfaller 1 is too high. YVhile the counterfaller support has produced this action, the fiat bar or rod 26 which is pivoted to the other end of the lever 22 has risen in the direction of the arrow 27 (Fig. 2) stretching the helical spring 28. This bar 26 rocks the lever 29, by means of an adjustable block 35 and a pin or stud 36; the left hand arm 29 of the lever 29, which ends in the form of a hook, comes into the depressed position shown in dotted lines in Figs. 2 and 5. The center of oscillation of the lever 29 is the stud 37 carried by the branch 126 of the support fixed to the frame 31. During this rocking movement of the lever 29, the carriage has reached the end of its inward run. It then commences a new outward run, the chain 7 leading to the quadrant 6 of the mule being then slack. The end 38 of a rigid arm 39 fixed to the bracket 40 of the carriage comes against the arm 29' of the lever 29 at the commencement of the outward run of the carriage and causes this arm 29 to rise into its original position. This causes the descent of the bar 26, the rocking of the lever 22 and the driving of the ratchet wheel 25 by the pawl 24.

The ratchet wheel 25 is keyed on the bush 41 of a chain wheel 42; it is the small movement of rotation given by the ratchet wheel 25 to the wheel 42 which has to be transmitted to the screw 9 of the quadrant 6 to obtain the normal position of the nut 8 for the following run of the carriage! This can be obtained very well for example by means of chains 43, 44, 45, and pinions 46. 47, 48, 49 and 50, these two latter being at the base of the screw 9 of the Quadrant. The chain 43 connects the wheels 42 and 51. The wheel 51 is cast with a clutch sleeve 52 (see Fig. 3) the axle 53 of which rotates in the bush or part 54 of a support 77 fixed on the front of the large headstock 55. At the commencement of the outward run of the carriage, the teeth of the other clutch sleeve 56 engage with those of 52; this sleeve 56 can move along a key 53 set in the axle 53 so that when the clutch sleeves 56. 52 are in enga gement, the rotation of the chain wheel 51 is transmitted bv the shaft 53 to the toothed wheel 46 which communicates the movement to the chain wheel 57 by the pinions 47 48. the pinion 48 being fixed on or integral with the boss of the wheel 57. The chain 44 connects the wheel 57 to the wheel 58 fixed on the transmission shaft 59;

this shaft turns in the boss of an adjustable plate 60 (Fig. 2) mounted at the upper part of a support 61 which is itself fixed, near the small headstock, to the right hand frame 62. The shaft 59 carries the chain a wheel 64 which is connected by the chain 45 to the wheel 65 mounted at the'end of the shaft 15 which transmits the motion to the screw 9 of the quadrant 6 to shift the attachment nut 8 of the chain 7; this movement is communicated (see the detail, Fig. 7) by the bevel pinion 49 carried on the end of the shaft 15 which gears with another bevel pinion 50 fixed on the lower part of the screw 9 of the quadrant.

The wheel 65 is arranged on the principle of the free wheels well known in mechanism by their application to bicycles. This wheel 65 is arranged as shown in detail in Figs. 9 and 10; it comprises one or two internal rings of ratchet teeth 66 with one or two pawls 67 carried by a hub fixed on the shaft 15; springs 67' keep the pawls up againstthe ratchet wheels. This arrangement allows the shaft 15 to turn freely, without the chains 44 and 45 moving during the outward run of the carriage.

The boss or bush 54 of the support 77 (see Fig. 3) which receives the shaft 53 supports rigidly an upper arm 69 which carries a trunnion 70 serving for pivoting a lever 71 which passes through the neck of the clutch sleeve 56. The lower end of the lever 71 engages in a cam groove 72 (Fig. 6) formed in a slide plate 73, movable in guides 75 cast with the support 78. On the other hand the slide plate 73 carries a pin 79 upon which an arm 80 suspended from a pivot 81 can act. A tappet 85 formed by an angle iron fixed to the frame 40 produces the following efiect when the carriage performs its movement: On the return of the carriage, the tappet 85 rocks the arm 80, which rises to allow the said tappet 85 to pass. In the continued return travel of the carriage the tappet 85 comes against an adjustable lug or member 82, fixed to the slide plate 7 3; it carries this lug or member with it until the end of its stroke (Fig. 5) the effect of this is to drive the slide plate 73 and consequently to displace the lower end of the lever 71 laterally in the slot 72, so that the said lever by pivoting through a certain angle on its axis 70 causes the teeth of the clutch sleeve 56 to engage in those of the clutch sleeve 52. This engagement of the clutch sleeves 56 and 52 is maintained until the carriage in running out causes the tappet 85 to come against the suspended lever 80 which rocks and comes against the pin 79 which it carries on in its movement. The slide plate 73 then recedes, and the lower end of the lever 71 takes the position in the slot 72 which is shown in Fig. 6 and which corresponds to the disengagement of the clutch sleeves '56 and 52. The spring 89 arranged outside the clutch sleeve 52 simply keeps this sleeve against the flange 90 of the shaft 53. This spring is compressed when the teeth of the two sleeves are properly in relation to each other. It therefore allows of the certain engagement of the clutch members.

It will be understood from the preceding explanation that the clutch sleeves are not engaged until quite at the end of the inward run of the carriage, and consequently if the reserve is too great at'the moment when the roller 19 of the special guide 91 has caused the pawl 24- to descend on the teeth of the ratchet the clutch sleeves remain in en gagement until, if it is necessary, the lever 29 has caused the chains to act which connect the axle of the ratchet wheel 25 to the operating shaft 15 of the screw 9 of the quadrant. sleeves commences when the carriage has run out about 25 centimeters.

The ratio of the gears 46 and 48 being properly established, if an inward run of the carriage takes place with too great a reserve of thread, the nut of the screw of the quadrant will at the next inward run occupy a suitable position upon this screw and communicate to the spindles 5 the number of revolutions strictly necessary to absorb the length of thread produced during the outward run of the carriage.

The parallelogram motion formed by the levers 20, 22, 29 and the rods 23, 26 (Fig. 11) is perfectly balanced, so that the coiled spring 28 is of very small section. The function of this spring is to keep the parallelogram motion in its position of rest, shown in Figs. 2 and 11, when the two clutch sleeves are out of engagement. The force necessary to actuate, or rather to cock or set the mechanism of the thread reserve corrector only amounts to the tension of the spring 28, resulting from the higher or lower position of the roller 19; this force is insignificant and in no way detrimentally affects the pressure which the counter-faller 1 needs to have for stretching the threads during the end of the winding up 01' copping. The parallelogram motion above described may in certain cases be arranged as shown by Figs. 12 and 13. In this case the rocking movement of the lever 29, 29 is obtained by arranging the lever 22 (here des ignated 22) on the end of the axle 53, the ratchet wheel 25 (here designated 25") being then fixed on the clutch sleeve 52 (Fig. 13) in place of the toothed wheel 51 which is dispensed with as well as the wheel 12 of the first arrangement.

The end of the curved lever 20 terminates in a pivot 83 on which is jointed the rod 23 which is connected to the lever 22 by a movable piece v32'. The amplitude of oscil- The disengagement of the clutch lation of the lever 22 is increased or diminished by placing the piece 32 in one or other of the holes 84 formed in the end 22 of the lever 22. In this arrangement the spring 28 which returned the parallelogram motion to its position of rest is replaced by a counterweight 87 fixed to the end 22 of the lever. The shoulder of the pivotal axis of this lever has in this case a special form shown in Fig. 12, tov obtain an adjustable rest abutment 88. A stop pin 87 placed at the end '22 of the lever 22 prevents the weight 87 from falling if the locking screw which fixes it becomes loose.

The spirals or convolutions are more numerous at the commencement of the formation of the cop, when the winding up is taking place on the tubes, than toward the end of the lift; they are seven to eight in numher at the commencement and their number is reduced to five or six at the end. To facilitate these differences in the number of convolutions on mules which possess no declivity at the extreme end of the bar the special guide 91 is made adjustable, being pivoted at 92, and displaced by means of the wing bolt 93, which connects it to one branch of the bell crank lever 94:. This 'bolt 93 has a threaded part 93 screwed into the screw-threaded branch 91 and a neck 93, which passes freely through 9 1 and has a ring fastened in its end. By turning the bolt by its wings the upper branch 91 is displaced.

When the cop is begun the branch 9% forms with the counter-faller lever guide 91 a closed hinge, and the roller 19 occupies a lower position than when the cop is approaching completion, at which time the hinge between 9% and 91 will be open about 3 millimeters, as shown in Figs. 2 and 5, the roller 19 being then raised about 8 to 10 millimeters. The left hand arm 20 of the lever 20 being thus actuated less rapidly by the roller 19, the reserve of thread (which has been previously defined) will thus be greater at the commencement of the formation of the cop than toward the end, and will permit of a greater number of convolutions.

So far only the principal portion of the reserve corrector has been described, that is to say the means which cause the attachment 8 of the chain 7 to descend automatically when the counter-faller 1 is too high.

For the complete understanding of the corrector, I will now proceed to describe the arrangement which causes the chain attachment nut 9 to rise on the screw 8 this mechanism, which is shown separately in On the shaft 96 of the faller 17, at the right (see Fig. 3) is fixed a lever 100 (Figs. 5 and 14) ending in a slot in which is a roller 101. Below this roller 101 is a compensating bell crank lever 102 pivoted on atrunnion 103 fixed to the bracket of the carriage. The roller 101 is adapted to rock the arm 104 of the lever 102 and a slot 105 (Fig. 2) is formed in the other arm of the lever 102 to receive a trunnion 129 which supports the end of a chain 109.

On the shaft 3 of the counter-faller 1 is fixed the lever 95 which carries at its end .a swivel connection 106, through which passes a screw threaded rod 107 on which is screwed a wing nut 108. The chain 109 which connects the trunnion 129 to the rod 107 supports a roller 110 carried by a fiat bar 111 which slides in a support 112 fixed on the front of the assemblage frame 128 of the two half carriages. On this support 112 is fixed the arbor 113 of a ratchet wheel 114 keyed on the boss or bush of a chain wheel 115. The bar 111 carries at its lower end a pawl 116 (Fig. 2) adapted to engage in the teeth of the ratchet 114 and prevent the rotation of the latter and of the wheel 115.

An endless chain 117 disposed in the bottom of the frame of the spinning mule goes from the stretcher 127 (Fig. 1) to the wheel 119, passing over the upper part of the toothed wheel 115 and under the roller 120. On the boss of the toothed wheel 119 is keyed the toothed wheel 121 connected by the'chain 122 to the wheel 123 fixed on the shaft 15.

When the carriage is at the end of its outward run, and before the commencement of its inward run, the shaft 96 of the faller 17 40 turns in the direction of the arrow 152 (Figs.

2 and 5) to lower the faller 17 so as to conduct the thread on to the tubes carried by the spindles 5, this movement being imparted by the usual faller gear (not shown).

This movement effects the displacement in the same direction of the lever 100, the end of which supports the roller 101 which moves the arm 104 of the compensating lever 102. A tooth 130 east on the left hand edge of this arm 104 of the lever 102 is at the moment of copping or winding up in contact with the rack teeth of a curved lever 131 pivoted on a trunnion 132 fixed to the bracket 40. WVhen the faller 17 rises in the direction 133 (Fig. 5) to guide the threads on to the tubes, the roller 101 quits the lever 104 which remains engaged or retained. The compensating lever 102 preserves this retained position for the whole duration of the winding up (or inward run of the carriage).

The chain 109 connected to the adjustable rod 107 is attached to the other end of the lever 102 at 129.

The length of a small chain 134 fixed to the locking screw of the lever 100 and connected to the free end of the rack 131 is regulated in uch manner that the teeth of this rack become disengaged from the tooth 130 when, on the carriage having completed its inward run, the faller 17 has risen to its position of rest.

As the faller 17 descends (as operated by the usual means) to a less and less extent in proportion as the cop forms, it follows that the roller 101 will push the arm 104 to a less and lessdistance in the teeth of the rack, the result of which will be to cause 102 to occupy a lower and lower position proportionately to the increase in size of the cops, and consequently the progressive lengthening of the chain 109. It is therefore necessary that the counter-faller 1 shall occupy a lower and lower position in order to raise the guide 95 sufliciently to bring the catch 116 into engagement with the ratchet wheel 114.

The end 105 being heavier the compensating lever 102 rocks until 104 comes against the stop or abutment 135, Fig. 5, (formed by the head of a screw); this is the position which it occupies at each of the outward movements of the carriage at 102, (Fig. 2) lengthening still more the chain 109.

It has been above explained that it is the position of the counter-faller 1 which shows whether there is an excess or a lack of reserve thread. VVhen this reserve of thread begins to diminish, the counter-faller 1 is in such a position on the final return of the carriage, that the roller 19 of the guide 91 of the counter-faller cannot come in contact with the lever 20 and rock the same. When a lift is begun, after a few return runs of the carriage, when the attendant sees that the reserve of thread diminishes too much he" adjusts the length of the chain 109 by acting on the wing nut 108 of the rod 107. so that by raising the roller 110 the catch 116 comes into engagement with the ratchet wheel 114. This prevents the rotation of the wheel 115 and causes the displacement of the chain 117 in the direction of the arrow 125 (Fig. 2). The eifect of this is to rotate the wheels 119, 121 and 123 and also the bevel pinions 49 and 50 (Fig. 7). The screw 9 of the quadrant 6 then turns in the proper direction to cause the nut 8 to which the chain 7 of the mule is attached to rise.

When the cores of the cops are finished, the attendant withdraws the small chain 109 of the roller 110, and then only the upper mechanism is in action. In proportion as the cops increase in size the reserve of thread must diminish; the attachment nut 8 of the chain 7 must therefore descend little by little. This result is obtained by the arrangement which has been previously described. This arrangement moreover re- I ters Patent is 1. In a spinning mule the combination with the quadrant screw and nut and with the carriage and counter-faller, of a transmission mechanism for operating the quadrant screw and driving means therefor, the

latter comprising a part arranged to be encountered by a part connected with the counter-taller at the end of the inward run when the counter-taller is too high, said mechanism adapted in such case to turn the quadrant screw in such direction as, to cause its nut to descend. i

In a spinning mule the combmation with the quadrant screw and nut and with the carriage and counter-taller, of a transmission mechanism for operating the'quadrant screw and drivingmeans therefor, the latter comprising a part arranged to be encountered and movedby a part connected with thecounter-faller at the end of the inward run when the counter faller is too high, and comprising a ratchet which in such case moves idly, and a spring which is put under stress by such movement, whereby at the beginning of the outrun of the carriage, upon the separation of such parts the spring acts throughthe ratchet to operate said mechanism, and the mechanism adapted when so operated to turn the quadrant screw in such direction as to cause its nut to descend.

3.. In a spinning mule the combination with the quadrant screw and nut and with the carriage and counter-faller, of a transmission mechanismfor operating the quadrant screwand driving means therefor, the latter comprising a part arranged to be encountered and moved by a part connected with the counter-taller at the end of the inward run when the counter-faller is too high, and comprising a ratchet adapted to move idly during such displacement and actively at the beginning of the outrun of the carriage whereupon to transmit motion through said mechanism to said screw and adapted to turn the latter in such direction as to cause its nut to descend.

4. In a spinning mule the combination with the quadrant screw and nut and with the carriage and counter-taller, of a transmission mechanism for operating the quadrant screw and driving means therefor, the latter comprising a part arranged to be encountered and moved by a part connected with the counter-faller at the end of the inward run when the counter-faller is too high, the mechanism comprising also a parallelogram motion, one arm of which carries the piece thus acted on by the counter-faller and the second arm thereof adapted to communicate motion to said transmission mechanism, a ratchet and pawl through which said motion is communicated, and aspring engagingsaid second arm.

In a spinning mule'the combination with the quadrant screw and nut and Wltll the carriage and counter-faller, of a trans mission mechanism for operating the quad rant screw and driving means therefor, the latter comprising a part arranged to be encountered by a part connected with therant screw and driving means therefor, the

latter comprising a part arranged to be encountered and moved by a part connected with the counter-faller at the end of the inward run when the counter-faller is too high, said mechanism adapted in such case to turn the quadrant screw in such direction as to cause its nut to descend, and said transmission mechanism comprising a clutch and clutch-operating means for rendering the transmission operative or inoperative.

7. In a spinning mule the combination with the quadrant screw and nut and with the carriage and counter-faller, of a transmission mechanism for operating the quad rant screw and driving means therefor, the latter comprising a part arranged to be encountered and moved by a part connected with the counter-faller at the end of the inward run when the counter-faller is too high, said mechanism adapted in such case to turn the quadrant screw in such direction as to cause its nut to descend, and said transmission mechanism comprising a clutch, and clutch-operating means comprising a tappet cam, its cam portion operating to engage or disengage the clutch and being itself displaced by engagement with the carriage, whereby after the beginning of the outrun of the carriage the tappet may be displaced and the clutch released.

S. In a spinning mule the combination with the quadrant screw and nut and with the carriage and counter-faller, of a transmission mechanism for operating the quadrant screw and driving means therefor, the latter comprising a part arranged to be encountered and moved by a part connected with the counter-taller at the end of the inward run when the counter-faller is too high, said mechanism adapted in such case to turn the quadrant screw in such direction as to cause its nut to descend, and said trans; mission mechanism comprising a clutch, and clutch-operating means comprising a tappet cam formed as a slide plate having a cam portion for communicating movement to the clutch and having an abutment engaged during the outrun of the carriage to displace the slide plate and disengage the clutch.

9. In a spinning mule the combination with the quadrant screw and nut and with the carriage and counter-faller, of a transmission mechanism for operating the quadrant screw and driving means therefor, the latter comprising a part arranged to be encountered and moved by a part connected with the counter-faller at the end of the inward run when the counter-faller is too high, said mechanism adapted in such case to turn the quadrant screw in such direction as to cause its nut to descend, said transmission mechanism comprising a ratchet wheel adapted to turn freely during the inward run of the carriage but engaging during its outward run.

10. In a spinning mule, the combination with the quadrant screw and nut and with the carriage and counter-faller, of a transmission mechanism for operating the quadrant screw and driving means therefor, the latter comprising a pivoted arm connected with the counter-faller and a movable part arianged to be encountered thereby at the end of the inward run when the counterfaller is too high, said pivoted arm having adjusting means whereby to vary its elevation so that it may be raised as the cops in,- crease on the spindles.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

RENE ABEL DUPONT.

Witnesses:

CHAs. P. PRESSLY, RENE BARDY.

Copies 01' this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

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