US870075A - Automatic chain-drive-regulating device for spinning-machines. - Google Patents

Description

PATENTED NOV. 5, 1907.

J. M. BAIN. AUTOMATIC CHAIN DRIVE RBGULATING DEVICE FOR SPINNING MAC EINES.

APPLIoATIoN FILED ooT.11. 190e.

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AUTOMATIC CHAIN DRIVE REGULATING DEVICE FOR SPINNING MACHINES. APPLIOATION FILED ooT.11. 1906.

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PATBNTED NOV. 5, 1907. J. M. BAIN.

AUTOMATIC CHAIN DRIVE REGULATING VDBVIE F 0R SPINNING MACHINES. APPLIoATIoN FILED 001.11. 1906.

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UNITED STATES PATENT OFFICE.

JOHN M. BAIN, OF PETERBORO, ONTARIO, CANADA Speeication of Letters Patent.

Patented Nov. 5, 1907.

Application filed October ll. 1906- Slerial No. 338528.

To all whom 'it may concern:

Be it known that I, JOHN M. BAIN, of the city of Peterboro, in the county of Peterboro, Province of Ontario, Canada, spinner, have invented certain new and useful Improvements in Automatic Chain-Drive- Regulating Devices for Spinning-Machines, of which the following is the specification.

My invention relates to improvements in automatic chain drive regulating devices for spinning machines, and the object of the invention is to providelan automatic device which will regulate the speed at which the bobbin spindles rotate so that there will always be sufficient slackness in the yarn or other material being wound to compensate for the increase in diameter of the bobbin as the bobbin is being formed and also to reach the top of the bobbin at the end of each winding movement of the machine and also to provide automatic means whereby the slackness formed for the above purpose is gradually reduced inv proportion to the increasing height of the bobbin, and it consists essentially of a dog arm pivotally secured to the end of the bobbin carriage, a flexible connection between the free end of the arm and the tension wire of the machine, a suitably journaled counter shaft, bevel gears connecting the counter shaft and screw spindle of the quadrant lever of themachine an idler pulley journaled on a stud at the end of the bobbin carriage, a rope gear wrapped around such pulley and a pulley on the counter shaft, a ratchet secured to the idler pulley u with which the dog arm is designed to engage, the builder bar, a lever pivoted intermediately of its length connected to the bar, a pressure bar designed to be brought into contact with the flexible connection supporting the dog arm and a trip device operated by the builder bar whereby the pressure bar is moved longitudinally against the said iiexible connection, as hereinafter more particularly explained by the following specification.

Figure l, is a general perspective view of my device partially broken away and in section to exhibit the construction thereof. Fig. 2, is an enlarged perspective view of the main portion of my device. Fig. 3, is a perspective view of the rope gear and its connection to the machine. Fig. 4, is a perspective detail of the dog arm and means of throwing such arm out of engagement. Fig. 5, is a perspective detail of the tripping shoe. Fig. 6, is a sectional detail of the shoe. Fig. 7, is a detail of the bobbin partially wound. Fig. 8, is a detail of the bobbin completely wound. Fig. 9, is a detail of one of the tripping bars of the shoe.

In the drawings like letters of reference indicate corresponding parts in each figure.

I will first describe the parts of a spinning machine with which my device is connected.

A is the frame of the machine supporting feed rolls B.

C is the reciprocating carriage on which are located the bobbin spindles C which hold the bobbins C2.

D is the tension wire secured .to the counter faller arms D2 which are secured in the usual manner to the shaft D4.

D is the builder wire secured to the arms D3 of the aller which are secured to the faller shafts D5.

D6 is the usual driving drum for the bobbin spindles.

A is a forward extension of the main frame. At the end of the extension A is pivoted the quadrant lever A2 of the machine. The lever is provided with the usual threaded center spindle A3 the movable block A4 and the crank handle A5 secured on the end of the threaded spindle A3.

A6 is the main driving drum around which is wrapp ed the chain A7 one end of the chain being connected to the drum and the other end to the blockA4 of the quadrant lever. The drum A6 is connected by suitable gears to the driving drum D6 of the bpbbin spindles C.

To those familiar with spinning and winding ma- Vchines it will be understood that as the bobbin increases in diameter the speed at which it rotates must be reduced in order to allow of sufficient slack in the yarn to compensate for the increasing diameter of the bobbins, the speed at which the yarn is fed being uniform. If this were not done, too great a tension would be exerted on the yarn as the size of the bobbin increase causing the yarn to break in consequence. It willA also be understood that on completion of the winding or inward-movement of the bobbin supporting carriage there must be sufficient slack yarn left to reach from winding of the bobbin to the top of the bobbin as shown in Fig. 7. This has been accomplished to some extent by the operator rotating the crank handle A5 and threaded rod A3 by means of which the block A4 is moved in an upward direction on the spindle. As the carriage O moves inwardly on the feed rollers, the

`chain A7 is unwrapped from the drum rotating it and through suitable connecting gear rotates the driving drum DG of the bobbin spindles. During this inward movement of the carriage the quadrant lever A2 swings in the same direction on its pivot. rlhe speed at which the drum rotates is regulated by the position of the block A4 on the rod A3. The higher the position of the block on the rod the slower will be the rotating movement of the drum. Though the speed of the bobbin spindles may be regulated to some extent by this means .it is found that the operator is liable either to regulate the speed rotation of the spindles at too high or too low a speed. If the former is done then all the threads of yarn at the end of the inward movement become broken, if the latter the yarn is slackly wound on the bobbin and on the return or spinning movement of the machine the yarn will be harder spun and heavy. j movement of the carriage and preventing unnecessary It will also be understood that as this adjustment has to be made upon every return movement of the carriage that it is very inconvenient and involves a waste of much time as the operator is not always near the center of the machine when the adjustment has to be made and is apt to neglect to make the adjustment at all. To overcome these objections I have devised the following automatic device whereby a uniform tension is preserved on the threads of yarn as they are wound or spun on the bobbin and which I will new describe.

E is an arm pivoted on the stud E formed on the end of the bobbin carriage C.

E2 is a chain or other suitable flexible connection between the free end of the arm E and the arm D5 of the upper tension wire.

F is a double idler pulley formed with grooves F and F2 and journaled on the stud F3 on the end of the bobbin carriage.

F4 is a ratchet wheel secured to the pulley F.

E3 is a depending` portion of the arm E designed to engage with the ratchet F1 when the tension wire is depressed.

G is a double idler pulley journaled on the stud G2 formed on the bracket G3 secured to a suitable portion of the main frame, and provided with grooves G11 and G12.

G1 is an idler pulley journaled on a suitable standard secured to a suitable base.

G5 is a triple pulley journaled on the pin G5 secured to the bracket G7. The pulley is formed with the grooves G8, G9 and G1.

H is a bevel wheel secured to the lower end of the threaded rod A3.

H is a counter shaft journaled in a suitable bracket H2 secured to the portion A of the main frame and provided at one end with a bevel gear H3 designed to mesh with the gear H on the rod A5. H1 is a double pulley secured to the other end of the shaft H and provided with grooves H5 and H5.

H7 is the driving cord or belt which extends from the groove F of the pulley F around the groove G11 of the pulley G around the groove G10 of the pulley G5 then around the groove H5 of the pulley H4 in a reverse direction, then around the groove G9 of the pulley G5, and then around the groove H5 of the pulley H4, then around the groove G8 of the pulley G5, then around the pulley G1, then around the groove F2 of the pulley F, then around the groove G12 of the pulley G then back to the groove F of the pulley F.

The arm E is provided with a notched portion 2.

3 is a pivoted arm secured to a portion of the bobbin carriage, the lower end of the arm 3 is connected by a tension spring to a suitable portion of the frame.

4 is a trip pin located in the path of the lower end of the arm 3 in proximity te the point limiting the extreme inward movement of the bobbin carriage.

When the carriage reaches the end of its inward movement the lower end of the arm 3 comes in contact with. the trip pin tilting the arm on its pivot and carrying the upper end into the notch formed in the arm E raising it out of engagement with the ratchet F4. This arrangement of parts iscretained during the outward friction between the ratchet and arm E5. The arm 3 is relieved by the pin Q riding up en the cam arm Q1 at the end of the outward movement of the carriage. As the bobbin increases in diameter thc tension of the strands of yarn is exerted on the tension wire D depressing the arms D3. The free end of the arm E hung from the arm D5 by the chain El swings down around its pivot E until the depending portion .E3 engages wi th one of the ratchet teeth of the ratchet wheel F4 preventing the pulley F rotating.

It will be seen that under normal conditions that is, before the ratchet is locked by the engaging portion E3 the bobbin carriage will move inwardly in the direction indicated by arrow (see Fig. l) the pulleys F and G rotating idly without drawing en the cord H7. As soon as the engaging portion E5 holds the ratchet F4 and pulley F from rotating; the pulley F as the carriage moves inwardly draws on the cord H7. The cord H7 through the connecting pulleys G5 and H 1 rotates the counter shaft H and turns the adjusting spindle A3 through the bevel wheels H and H3. This movement raises the block A4 thus regulating the chain drive A7 to drive the drum at a decreased speed. The feed being uniform, the decreased speed of rotation will compensate for the increase in diameter of the bobbin.

lt will be understood by referring to Figs. 7 and 8 of the drawing that not only is an extra amount of slack yarn required to compensate for the increasing diameter of the bobbin but also there must be a suflicient supply of slack yarn to reach the top of the bobbin spindle at the end of the winding or inward movement of the carriage.

W hen the bobbin is commencing to build up a great deal of slack is required as shown by Fig. 7 of the drawings and very little is required for this purpose when the bobbin is nearing completion as by Fig. 8 of the drawings. It is therefore necessary when the bobbin is commencing to form to adjust the parts to so regulate the rotation of the. .bobbin spindles that sufhcient slack is allowed not only to compensate for the increasing diameter of the bobbin but also to reach the top of the bobbin and then to provide mechanism whereby as the bobbin is built up toward the top of the spindle the slack is automatically cut off. I will now describe the mechanism whereby such extra slack is automatically cut off.

I is the usual builder bar of the machine designed to operate the builder wire D by mechanism now cemmonly in use and therefore not necessary to describe in this specification.

.l is a bracket standard secured to the end of the bobbin carriage and provided with an eye J at its upper end.

K is a sliding bar designed to move longitudinally to itself in the eye J. The bar K is provided at its inner end with a contact shoe K and a loop K5 through which the chain E2 is designed to pass.

The bracket J is provided intermediately of its height with an outwardly extending arm J5.

J3 is a lever bar pivoted intermediate of its length to the arm J2 and at its upper end to the bai K. The end is provided with a longitudinal slot J1.

JG is a lever bar pivoted to the bracket J7 and connected by a pin J9 passing through the lower' slot J4 to the bar J3.

L is a supporting plate secured to the frame oi the carriage at the front by a bolt L.

L3 is longitudinally sliding plate provided with longitudinal slots L* and L5 through which pass the screws L6 and L7.

Lis is a rack gear secured to or forming plate L3. i

On the bracket are clamped a series oi bars LW ot varying length by means of the clamping bars L11, bolt Ll2 and screw Li. The bolt L7'Z passes up through a sleeve L1" for the purpose o bringing the nut Lx5 into any suitable position or loosening.

JW is an extension piece formed at right angles to the lever I and designed to rest on the shortest oi the bars Lm in proximity to the end thereof.

.lu is a tension spring connecting the end oi the lever .lG with a suitable portion oi the frame.

L15 is a depending portion oi the plate Ls to which are attached bearings in which is journaled the vertical shaft M.

M is a pinion secured to the end of the shaft M and designed to mesh with the rack LS.

M2 is a securing collar.

M3 is a projecting piece extending at right angles to the .shaft M to which it is secured.

One end ot the sliding plate L3 is formed inclined.

O is a retaining bracket designed to hold the wedge plate O.

O2 and C)3 are pins respectively secured to the sliding plate L3 and to the plate L. The pins O2 and O3 are connected by a tension spring O4.

P, P are the sliding pieces supporting the builder bar I and P-7 is a bar connecting such pieces together.

P3 is a bracket secured to the bar P2 and provided with a pin P".

P5 is a lever pivoted to a suitable support intermediately of its length and provided at each end with an upwardly projecting pin P and P7 respectively. The pin P7. is connected by a spiral tension spring to a stationary screw P9.

It will be understood by those skilled in the art, that part of the as the blocks P and P move in the direction indicated by the arrow the builder bar descends and by means of connecting mechanism the builder bar rises to regulate the height of the bobbin. By the movement of the blocks P and P in the above direction the lever P5 is swung on the pivot in the direction indicated by the arrow gradually bringing the pin P7 into the path of the projection M3. It will be understood that this `is a very slow movement. moved by mechanism in use in the majority oi spinning machines. This is not shown or described as it is very common and well known to those familiar with this art and it has not been shown or described as it forms no part of the present invention. As soon as the pin P7 is brought into the path of the projection at each inward movement o the bobbin carriage the projection M3 contacts with the pin P7 tilting the lever P5 against the tension of the spring P8. Immediately the projection M3 has passed the pin P7 the tension spring Ps carries the lever P5 back into its normal position. At each outward movement oi the carriage the projection The block P and P are.

contacts again with the pin P7 but on this outward movement oi the carriageI the lever is held in place by having its opposite end in contact with the pin P4. As the projection passes the pin P7 the shaft M is partially turned moving the sliding plate slightly in the direction indicated by the arrow. This operation is repeated at each outward movement oi carriage. By such successive movements the bars L10 are moved from beneath the lever J6 allowing the lower end of the lever to gradually fall. On the depression o the lever .IG the bar K is given a forward movement against the chain E2 giving a greater bend thereto and gradually bringing the parts into the position shown by dotted lines in Fig. 2.

It will be understood that the greater the bend or bow in the chain the greater will be the delay in bringing the depending portion E3 into contact with the ratchet wheel F4 during the inward movement o the carriage and consequently the block A4 is moved at a gradually decreasing distance at every return movement of the bobbin carriage, so that the speed oi the bobbin spindles will be reduced to a less degree as the builder wire rises and the' bobbin becomes ull. I

As the plate L3 is moved longitudinally step by step against the tension of the spring O4 the wedge plate O drops at each movement thus preventing the return of the plate.

It will be understood by those skilled in the art that upon the completion of the outward movement oi the carriage there is a slight inward or easing movement to allow oi the contraction in length oi the strands of yarn as they are spun. To avoid any liability o the yarn during this movement contracting sufficiently quick to cause a tension on the wire D7 depressing the same and allowing the arm E3 to engage with the ratchet wheel F resulting in slackening in the speed of the bobbin I provide a pin Q on the arm E and a cam Q secured to the trame A.

As the carriage completes its outward movement the pin Q bears on the arm Q. Should the tension of the contracting strands of yarn be sutlicient to depress the tension wire the arm E3 will be held out of engagement by the pin and the arm Q until such contraction is complete and the pin Q drops off the arm Q.

It is an adjustable stop block sliding on the lever bar -J3 and adjustably secured thereon by the set screw JX.

If it is found that too much or too little slack is being cut off I adjust the block R on the arm J3. As the arm K is moved inwardly the block comes in contact with the standard .l thus limiting the movement of the arm thereby regulating the amount of slack cut ofi.

When the bobbins are wound the block A4 is lowered con the screw spindle in the usual way by rotating the crank handle A5.

It will also be understood that my device is adapted to the spinning and winding oi various kinds oi materials which have a tendency to stretch to a more or less degree. By rearranging the bars L10 I am enabled to cut off more or less slack as required.

It will be seen from this description that I have devised a very simple7 effective and automatic means of regulating the feed oi the yarn so as to always allow oi sulicient slack therein and yet prevent the production oi too much slack in the yarn which in the case oi insucient slack would cause the strands of yarn to break from over tension and in the case of too much slack Would cause the yarn to wind unevenly on the bobbin and also When spinning would prevent the required number of turns to the inch being put in the yarn.

What 1 claim as my invention is.

1. In an automatic device for .controlling the chain drive of a spinning machine, the combination with the tension wire, and the dog arm, of a chain connected at one end to the tension wire and at the opposite end to the dog arm and independent of the builder wire and means for automatically and gradually bending such flexible connection as the bobbin increases in size as and for the purpose specified.

2. In an automatic device for controllingl the chain drive of a spinning machine, the combination with the tension wire and the dog arm, of a flexible connection between the dog arm and the tension wire and means operated by the builder bar f0r-automatically and gradually bending such flexible connection as the bobbin increases in size as and for the purpose specified.

In an automatic ldevice for controlling the chain drive of spinning machines, the combination of' the tension wires, the dog arm, the flexible connection supporting the free end of the dog arm, of a longitudinal movable pressure bar designed to be automatically brought against the flexible support of the dog arm as the bobbin increases in size as and for the purpose specified.

4. In an automatic device for controlling the chain drive of a spinning machine, the combination with the tension wire the dog arm, the flexible support for the dog arm, and the longitudinally movable pressure bar, of the movable builder bar blocks, a lever pivoted intermediately ot' its length, one end of which is spring held against a stop connected to the said block and the other end provided with an upward projection, a vertical shaft journaled in brackets in the frame and provided with a right angular olf set designed to engage with the upward projection of the lever, mechanism interposed between the shaft and the pressure bar whereby the longitudinal movement is imparted thereto upon tue said upward projection of the lever and off set coming into contact as and for the purpose specified.

5. In an automatic device for controlling the chain drive of a spinning` machine, the combination with the tension wire, the dog arm, the flexible connection supporting the free end of the dog arm, the ratchet and pulley gear, and the builder bar, of a longitudinally movable pressure bar designed to be brought gradually against the flexible support of the dog arm, and means operated by the builder bar for imparting such movement to the pressure bar, as and for the purpose specified.

6, In an automatic device for controlling the chain drive ot' spinning machines, the combination of the tension wire the dog arm, the flexible connection supporting the free end of the dog arm, the ratchet, pulley gear and builder bar, of a longitudinally movable pressure bar, a shoe having' a notched edge a compound lever the upper end of which is connected to the pressure bar, the lower end designed to rest on the edge of the notched shoe and means for imparting a longitudinal movement to the shoe from beneath the end of the lever, as and for the purpose specified.

7. In an automatic device for controlling the chain drive of spinning machines, the combination with the tension wire, the dog arm, the flexible connection supporting the dog arm, the ratchet, the pulley gear and builder bar, of a longitudinal movable pressure bar, a shoe secured to a longitudinal slidable bar, and provided with a series of bars of varying lengths forming a 'notched edge, a compound lever connected at the upper end of the pressure bar and the lower designed to rest on the edge of the shoes and means operated from the builder bar for imparting a longitudinal movement to the shoe supporting bar, as and for the purpose specified.

S. In a device of the class described the combination with the dog arm and flexible support therefor of a longitudinally movable pressure bar designed to be fed forward against the chain, a shoe composed of bars of varying lengths and a clamp for holding such'bars together to form an inclined notched edge, a compound lever connected at its upper end to the pressure bar and designed to rest at its lower end on the edge of the notched shoe and means for imparting a longitudinal movement to the shoe supporting plate, as and for the purpose specified.

9. In a device of the class described the combination with the bobbin carriage, the bobbin spindles, the tension wire, dog arm, flexible support therefor and the builder bar, of a pressure bar designed to be moved against the flexible support of the dog arm, a notched shoe, a compound lever connected at the upper end of' the pressure bar and designed at the lower to rest against the notched edge of the shoe, a longitudinal slidable supporting bar, a vertical rock shaft journaled at right angles to the plate, a right angular projection secured to the lower end of the shaft, a movable stop designed to be moved gradually into the path of such projection by the action of the builder bar and a connecting gear between the rock shaft and plate designed to impart a longitudinal movement to the plate, as and for the purpose specified.

l0. In a device of the class described the combination with the tension wire, dog arm, and flexible support for the arm, of a pressure bar designed to be brought into Contact with the flexible support, means for moving such bar into contact as the bobbin increases in height, and an adjust-able stop designed to limit the movement of the pressure bar, as and for the purpose specified.

1l. In a device of the class described the combination With the tension wire, dog arm, and exible support for the arm, of a pressure bar designed to be brought into engagement with the flexible support of the arm by a step by step movement and connecting mechanism between the builder bar and pressure bar, for imparting such movement from the movement of the builder bar, as and for the purpose specified.

12. In a device of the class described the combination with the tension wire, the dog arm, the exible support for the arm, of the pressure bar, a spring held lever connected to such bar designed to impart a longitudinal movement to the pressure bar, and a trip device operated by the builder bar for imparting a gradual longitudinal movement to the pressure bar, as and for the purpose specified.

13. In a device of the class described the combination with the tension wire, dog arm, the flexible support therefor and the builder bar, of a longitudinally movable pressure bar, a lever for operating the pressure bar, a longitudinally movable plate, supporting a tripping device for the lever, connecting mechanism between the plate and builder bar whereby a step by step movement is imparted to the plate and a locking means for holding the plate between the longitudinal movements thereof, as and for the purpose specified.

14. In a device of the class described the combination with the tension Wire, dog arm, the flexible support therefor and the builder bar, of a longitudinal movable pressure bar, a lever for operating the pressure bar, a spring held longitudinal movable plate supporting a tripping device for the lever and having' an inclosed end, connecting mechanism between the plate and builder bar whereby a step by step movement is imparted to the plate and a wedge plate designed to coact with the inclined end of the movable plate to hold the plate in position, as and for the purpose specified.

l5. In a device of the class described, the combination with the tension wire, having a notch in the free end thereof, the dog arm, the flexible support for the arm and the ratchet wheel, of a pivotally supported spring held trip arm designed to enter the notch in the dog arm, and suitably located stops designed to coact with the lower end thereof, to throw the upper end into and out of engagement with the notch on the dog arm, as and for the purpose specified.

JOHN M. BAIN.

Witnesses DAVID WnDGnwOoD, SAMUEL BROWN.

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