US1471292A

US1471292A - Stop motion

Info

Publication number: US1471292A
Application number: US490303A
Authority: US
Inventors: Louise E Sloat
Original assignee: SCRANTON SILK MACHINE Co
Current assignee: SCRANTON SILK MACHINE Co
Priority date: 1921-08-06
Filing date: 1921-08-06
Publication date: 1923-10-16
Anticipated expiration: 1940-10-16

Description

K. SLOAT STOP MOTION l. 2 9. l 6. a u A e l i F ts-Shegt 1 @ct. l6 1923.

K.SLOAT STOP MOTION Filed Aug. 6, 1921 6 Sheets-Sheet 2 TgZv 1 0m. 16, E923. 1,475,292 I K. SLQAT STOP MQTION Filed Aug. 6, 1921 6 Sheets-Sheet 5 K. SLOAT STOP MQTION 6 Sheets-Sheet 4 Filed Aug. 6, 1921 K. SLOAT STOP MOTION Filed Aug. 6, 1921 6 Sheets-Sheet 5 Oct. 16 1923. 1,471,292

K. SLOAT STOP MOTION Filed Aug. 6, 1921 6 Sheets-Sheet 6 Patented Get. 16, 1923.

UNHTEE STATE PATENT @FFEQE.

KARL SLOAT, OF SCRANTON, PENNSYLVANIA; LOUISE E. SLOAT ADMINISTRATRIX OF SAID KARL SLOAT, DECEASED, ASSIGNOR TO SCRANTON SILK MACHINE COMPANY, OF SCRANTON, PENNSYLVANIA, A ,CORPORATION OF PENNSYLVANIA.

STOP MOTION.

Application filed August 6, 1921.

To all whom it may concern:

Be it known that I, KARL' SLOAT, a citizen of the United States, residing in Scranton, Pennsylvania, have invented certain Improvements in Stop Motions, of which the following is a specification.

My invention relates to stop motions for thread Winding and similar machines, the object of the invention being to provide a novel and improved positive stop motion operative in the event of a broken thread or of the running out of a spool for interrupting the feeding of the strands and for braking the various moving parts with the least possible delay. A further object is the provision of a novel construction permitting adjustment by builders of silk throwing and other machines to accommodate the machines for any size of spool or bobbin.

In the attached drawings:

Figure 1, is a side elevation of stop mechanism made in accordance with my invention;

Fig. 2, is a fragmentary elevation of a portion of the mechanism;

Fig. 3, is a plan view of the elements illustrated in Fig. 2;

Fig. 4, is a fragmentary elevation of another portion of the stop mechanism;

Fig. 5, is a plan view of the elements illustrated in Fig. 4;

Fig. 6, is a face view of the gear train illustrated in Fig. 4;

Fig. 7, is. a fragmentary elevation of a still further portion of the mechanism;

Fig. 8, is a plan view of the elements illustrated in Fig. 7;

Fig. 9, is a horizontal section on the line 99, Fig. 7, and

Fig. 10, is a vertical section on the line 10-10, Fig. 9.

With reference to the drawings, my device comprises a suitable supporting structure 1 to which is secured a subsupport 2' comprising a series of parallel pins 3, the member 2 being secured to the supporting structure 1, in the present instance, by means of bolts 4, 4. As clearly illustrated in Fig. 1, the pins 3 are disposed at a slight angle to the horizontal and receive bobbins or spools 5 upon which has previously been wound the threads or strands 6 to be doubled and twisted.

Serial No. 490,303.

Pivotally mounted upon a spindle 7 supported in the outer'end of a bracket 8 suitably secured to the supporting structure 1 at a point below the member 2, is a series of drop wires 9 corresponding in number to the bobbins 5 and having attheir outer ends heads 10 in which are eyes 11 through which the threads 6 pass, said threads passing from the eyes 11 over a rod or bar 12 held in a suitable bracket 13 secured by means of bolts to the supporting frame 1. The bracket 13 also supports a rod 14 disposed outwardly of the drop wires 9, which rod 14 limits the outward movement of the drop wires -from the supporting structure.

After passing through the eyes 11 and over the rod 12, the thread passes to other mechanism of the machine hereinafter to be described, and the threads 6 are adapted, as

an element- 17 pivotally mounted in bear- U,

ings

18, 18, upon a rider 19, which rider has fixed thereto and is carried by a rod 20 slidably mounted in

bearings

21, 21, upon the bracket 8, the rear end of the rider being-supported by a pin 22 mounted in bearings 23 upon the bracket 8, the rider having in its rear side a slot 24 through which the.

said pin. 22 extends.

It will be apparent from the foregoing 1 description that the member 17 is free to 'oscillate in a vertical plane around the spinpin while the rider is adapted dle or pivot to reciprocat e in a substantially horizonta plane upon the bracket 8.

A spring 25 is interposed between one of the bearings 21 and a side of. the rider 19and tends to retain the rider in a position in which the endof therod 2O bears against the face of a cam 26 which is secured to a shaft or rod 27, the upper end of which is mounted in a vertical bearing 28 in the bracket 8 and has secured thereto an operating lever 29, by means of which the shaft may be manually oscillated. A spring 30 is carried by the rod 27 and tends'tov oscillate the rod in the'direction indicated by the arrow in Fig. 3, and there is in the cam 26 a notch or recess 31 which normally, duringoperation. of the machine, is occupied by the end of the rod 20, which thus functions as a latch or detent preventing oscillation of the rod 27 by the spring from the normal running position in which it is shown in Figure 2.

Supported in a bearing 32 secured to the supporting structure 1 by means of

bolts

33, 33, is a reciprocating rod 34, which latter receives its reciprocatory motion from mechanism of the machine (not shown) and which carries a dog 35 having a depending arm 36. When in its normal position, as shown in full lines in Fig. 2, the rear end 17 a of the member 17 lies below the path of the depending arm 36 of the dog 35, but when the element 17 is engaged by the arm of the drop wires 9, which it is when any one of the drop wires is released by reason of the breaking of the thread, the said rear end 17 is elevated as shown by the broken lines in Fig. 2, and in the elevated position lies in the path of the arm 36 of the dog 35. It will be apparent that as the dog 35 reciprocates and the arm 36 engages the element 17 in the manner described, the latter together with the entire rider 19 will be shifted, with the result that the rod 20 is retracted from the recess 31 in the cam 26, thereby permitting the spring to oscillate the rod 27 in the direction indicated by the arrow in big. 3, the said cam 26 being thereby shifted through an angle of substantially 90 and preventing return of the rod 20 to the lock ing position until the rod 27 has been shifted manually by means of the lever 29 to the original operating position.

The threads 6 after passing through the eyes 11 and over the rod 12 are passed through a sin le eye 37 to a pair of take-

up rolls

38, 38, w ich eye and rolls are carried by a standard 39 having extending downwardly therefrom a stem 40 mounted in a vertical bearin 41 in a bracket 42 which is fixed in suitab e manner, as by a bolt 43, to the supporting structure 1. The said

rolls

38, 38, are each mounted upon a spindle 44 which are established in

bearings

45, 45, on the said bracket 39, said spindles 44 having respectively attached to their rearward ends a pinion 46 and a bevel pinion 47, said

pinions

46 and 47 being operatively connected by means of.an intermediate pinion 48 rotatably mounted upon the bracket 39. As best illustrated in Fig. 4, the pinion 47 is elongated so as to combine a straight toothed pinion with the bevel, and the beveled portion of the gear meshes with a bevel gear 49 carried b a shaft 50, which is continuously rotated rom any suitable source of power in the machine, the shaft 50 being supported in a suitable, bearing 51 secured by means of

bolts

52, 52, to the supporting structure 1 A spring 53 is associated with the spindle 40 and tends to retain the standard 39 me position in which the bevel gear 47 meshes with the bevel 49, and means now to be de scribed is provided whereby when the rod 27 is oscillated by the spring 30 in the manner previously described, the bracket 39 is oscillated upon its pivotal mounting to withdraw the pinion 47 from engagement with the gear 49, thereby disconnecting the takeup rolls from the source of power which actuates them. The above mentioned means for oscillating the bracket 39 comprises in the present instance an arm 54 on the spindle 4O below the bearing 41, which arm by reason of the spring 53 normally is retained in contact with an eccentric cam 55 upon the rod 27. The eccentric cam during operation of the machine occupies the position best shown in ig. 5, but when the rod 27 is escillated u en release of the rod 27 by the rod 20, the cam 55 shifts the said arm 54 and the entire standard 39 in the direction of the arrow in Fig. 5, thereby disengaging the pinion 47 from the gear 49. A. stop provided limiting th oscillation of the rod '27, and consisting of an arm on the rod 27 having at its outer end a depending portion 57 which engages the side of the horizontal bracket arm 42, thereby limiting the oscillation of the rod 27 in both directions. As best shown in Fig. 4, a bearing 58 is provided in the bracket 42 for the rod 27.

From the take-up rolls the thread passes to a guide 59, and thence to a traveler 60 on a spinner ring 61 which is mounted upon an arm 62 on a rod 63, which latter extends upwardly from a traverse rail 64 and which is mounted in an extended bearing sleeve 65 fixed'in a bearing 66 at the end of a bracket arm 67. The latter arm 67 is secured by suitable means, such as a bolt 68, to a second bracket 69 secured by bolts 70, 70, to the supporting structure 1. Adjusting

screws

71, 71, are provided at the rear end of the arm 67 whereby, in conjunction with a ball support 72 on the under side of the arm 67, an adjustment of the bearing 66 into proper alignment may be obtained.

Extending around the sleeve 65 and resting upon the top of the arm 66 is a sleeve 73 which has extending therefrom an arm 74 in which is supported a stem or spindle 75, said spindle being inserted through an aperture 76 in said arm and having upon its lower end a nut 77 between the upper face of which and the under side of the arm 74 is confined a spring 78 tending to hold the stem fixed in the said aperture? The spindle carries an integral collar 79 which provides a supporting shoulder for the stem and has projecting therefrom :1 lug 7 9 which lies between two

projections

80 and 81 upon the arm 74 whereby movement of the spindle 75 in the arm is limited. A suitable washer 82 is in side in which the upper end of the spindle 75 is established.

Pins

87, 87, extend upwardly from the pulley 85 and occupy

recesses

88, 88, in one end of a spool 89 which has an axial passage extending therethrough for the reception of the upper end of the stem 84 upon which the spool is supported, the spool extending upwardly awa through the center of the spinner ring 61, as best shown in Fig. 10.

A stop is provided in the form of a wire 90 which passes around the spindle 75 directly beneath the arm 74 and between the arm and the spring 78 for normally pre-' venting upward movement of the stem 84 with its associated parts in the recess 83,

said wire extending upwardly and having its end 91 turned inwardly and downwardly and overlying the flange 92 of the pulley 85, while the lower extremity 93 of the wire 90 extends downwardly and lies against one face of the nut 77 whereby the latter is prevented from turning upon the spindle 75.

The sleeve 73 carries a coiled spring 94, one end of which rests in back of the arm 74, while the upper end passes through an aperture 95 in a u 96 which depends from an arm 97 of a s eeve 98 secured to the sleeve above the sleeve 73. The spring 94 exerts a force tending to swing the arm 74 with its supported elements to bring the face of the pulley 85 against a traveling belt 99 whereby the said pulley together with the spool 89 are revolved.

Attached to the arm 97 by means of a screw 100 isa friction stop or brake 101 which, when the arm 74 is moved backwardly away from the belt 99 in a manner hereinafter to be described, lies in the path .of and engages the side of the pulley 85,

said stop by friction existing between itself and the pulley acting as a brake to prevent rotation of the latter.

The movement of the arm 74away from the .belt 99 is accomplished by means of a cam 102 which is fixed in suitable manner, as by a set bolt 103, to the rod 27, and is adapted when'the rod is oscillated to disengage the pinion 47 from the gear 49, in themanner previously described, to bear against the side of the arm 74 and to force it outwardly whereby the pulley 85 is carried from the belt 99 and forced against the friction brake or stop 101.

As best shown in Fig. 10, the rod 63 is secured to thetraverse bar 64 by means of t a bracket 104 through, an aperture 105 in which the lower end of the'bar extends,

there being secured to the lower end of the bar an arm 107, the end of which underlies the bracket 104. In this manner, the said rod 63 is free to rotate with respect to its supports, and means is provided for interconnecting the rod 63 with the arm 74 whereby when the latter is oscillated it rotates correspondingly the rod 63' and thereby retains the-spo0l 89 and the ring 61 in their proper relative positions, in which the former is concentric with the latter. This corresponding movement of the arm 74 and shaft. 63 is obtained'by means of a rod 108 which is secured in the outer end of the arm 107 and which extends upwardly through a slotted recess 109 in the arm 74.

The operation of the device is as follows: The threads are drawn or unwound from the spool 5 by means of the rolls 38, and as they leave the spools pass, in the manner previously described, through the eyes 11 of the drop wires 9. In the normal running position of the machine, the drop wires are sup- 7 ported by the threads in an upright position with their rearward arms 15 elevated, as shown in Fig. 2, whereby the end 17 of the pivoted member 17 is allowed to lie in a depressed position below the path of the arm 36 of the shoe 35 upon the shaft 34,

which is continually reciprocated from av suitable source of power during the operation of the machine. The threads after passing from the rolls 38 pass to the traveler 60 on the spinner ring 61, which ring is reciprocated vertically by reason of its connection with the traverse arm 64, which is reciprocated vertically from any suitable source of power in the machine, the thread in this manner being traversed from top to bottom of the spool-89, which latter is continuously rotated by means of the pulley 85 and the belt 99. Should any one of the threads thus passing from the spools 5 break or should the thread be completely 15 to drop backw-ardly, the arm 15 engaging the arm 16 of the member 17 with the result that the end 17 of the latter is elevated into the path of the reciprocating arm 36 of the shoe 35. As a result of the contact between the said arm 36 and the member 17 the rod 20 is withdrawn from the notch 31 of the cam 26, whereupon the spring 30 acts to oscillate the rod 27, this oscillation of'the latter rod causing a withdrawal in the manner previously described of the pinion 47 from the continuously rotated bevel gear 49, whereupon the rolls 38- being separated from their source of motive power, no longer act to draw the remaining threads from the spools 5. At the same time, the cam 102 acts to force the arm 74 backwardly, which original position by means of the handle 29' arm carries with it in its movement the venting further winding of the thread upon the spool 89. After the broken thread has been mended or a new spool inserted on the support in place of the one which has run out, oscillation of the rod .27 to its permits the spring 25 to force the rod again into the notch 31 of the cam 26 whereby the mechanism is retained in the runnin position until such time as, another threa may break or a spool become empty.

I claim:

1. In. a stop motion, the combination with a thread controlled element; of acontinuously moving member, a reciprocatory carriage, a spring tending to retain said carriage in an advanced position, and an element mounted on said carria e and movable by the thread controlled e ement into the path of said continuously movable member whereby said carriage is-shifted' into a retracted posit-ion.

2. In a stop motion, the combination with a thread oontroled element, of a continuouslyi moving member, a reciprocatory carriage, a spring tending to retain said carriage in an advanced position, an element mounted on said carriage and movable by the thread controlled element into therpa th of said continuously movable member wherea thread controlled element, of thread feeding mechanism, a shaft controlling the op.- eration of said mechanism. means tending to rotate the shaft to interrupt the feeding mechanism, a movable element adapted to retain the shaft in the mechanism running position, a continuously reciprocating element, and a movable element carried by said retaining element and adapted .to be shifted by said thread controlled element into the path of the reciprocating member whereby the retaining element is shifted out of engagement with the control shaft.

i. In a stop motion, the combination with a thread controlled element, of thread feeding mechanism, a shaft. controlling the operation of said mechanism,'means tending to rotate the shaft to interrupt the feeding mechanism, a movable element adapted to retain the shaft in the mechanism running position, a continuously reciprocating ele ment, a movable element carried by said retaining element and adapted to be shifted by said thread controlled, element into the path of the reciprocating member whereby structure, a thread receiving element car ried by said structure, relatively fixed driving means for said thread receiving element independent of said structure, an automati cally movable element releasable by said controlled element, and a cam carried by said automatically movable element andadapted to engage the structure when the said element is released to shift the structure and thereby separatethe thread receiving element from the relatively fixed driving means.

6. In a stop motion, the combination with a thread controlled element, of a rotatable thread receiving element, driving mechanism for said thread receiving element, means for shifting the thread receiving element to disengage it from the driving'means, and a distributing element adapted to reciprocate axially of said receiving element and movable with the latterLwhen it is shifted out of engagement with the driving means.

7. In a stop motion, the combination with a thread controlled element, of a fixed sleeve, a standard pivotally mounted on said sleeve, a thread receiving element mounted on said standard, a relatively fixed driving member for said receiving element independent of said standard, means tending to retain the standard in a position in which the receiving velement is connected with the driving means,

a reciprocating member, a rod pivotally mounted in said member and extending through the sleeve, a thread distributing element carried by said rod adjacent the thread receiving element, automatically movable means releasable by said thread controlled element for shifting the standard to disconnect the thread receiving element from the driving means, and means interconnecting the standard and the said rod whereby oscillation of the standard entails a corresponding oscillation of the rod.

8. In a stop motion, the combination with a thread controlled element, of a rotatable thread receiving element, driving means for thereof, and means. for interconnecting the receiving element and the distributing element whereby the latter is shifted with the former to retain the relative positions thereof. Y

9. In a stop motion, the combination with a rock shaft, of thread-feeding mechanism fixed to the shaft, thread-receiving mechanism fixed to the shaft driving elements for said feeding and recelving mechanisms independent of the shaft, and thread-controlled mechanism for rocking the shaft to disconnect the mechanisms from said driving elements.

10. In a stop motion, the combination with a rock shaft, of thread-feeding and thread-receiving mechanisms comprising elements connected to the shaft and other elements independent of the shaft, and threadcontrolled mechanism for rockin the shaft to disconnect said elements an interru (3 operation of the feeding and receiving mec anisms.

KARL SLOAT.