US865890A - Attachment for spinning-mules. - Google Patents

Description

.No 865,890. PATENTBD SEPT. 10, 1907.

R. J. HARRINGTON.

ATTACHMENT FOR SPINNING MULBS. APPLIOATIONVIILED Mn. 25, 1907.

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- @wmeooeo PATENTED SEPT. 10, 190-7. R.-J. HARRINGTON.

ATTACHMENT FOR SPINNING MULES. APIPLIOATION FILED MAR. 25. 1901.

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PATENTED SEPT. 10, 1907.

In. HARRINGTON! ATTACHMENT FOR SPINNING MULBS.

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UNITED STATES ROBERT J. HARRINGTON, OF DALTON, MASSACHUSETTS.

ATTACHJVIENT FOR SPTNNING-MULES.

Specification of Letters Patent.

Patented Sept. 10, 1907.

Application filed March 25, 1907. Serial N0- 364,438.

To all whom it may concern:

Be it known that I, ROBERT J. HARRINGTON, a citi- Zen of the United States, residing at Dalton, in the county of Berkshire and State of Massachusetts, have invented certain new and useful Improvements in Attachments for Spinning-Mules; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a yarn evener attachment for spinning mules of that class known as the Johnson and Bassett spinning mule, and it is applicable to either the light or heavy type of mule. Its purpose is to provide uniformity in the size and weight of the yarn from the bottom or inner portion of the bobbin to its top or outer portion. These machines at present deliver the same amount of roving or stock at each draw, from the time the bobbins are started until they are filled, and because of this fact the yarn gradually becomes heavier from the time the bobbins are about three-quarters full until they are entirely full and taken off. The increase in the size or weight of the yarn while the last quarter or part of the set of bobbins is being filled is due to the fact that there is a certain amount of spun yarn which does not go 011 the bobbins or cops, but is thrown off and must go into or be added to the next delivery of roving, consequently said delivery will have to stretch less than the same amount had to stretch during the filling of the first threequarters of the set of bobbins, hence the yarn on the top of the bobbin is invariably coarser or heavier than that upon the bottom and middle portions thereof.

The object of this invention is to provide a simple and practical attachment of this character, which will a give uniformity in size and weight to the yarn, and this object is accomplished by providing between the builder shoe and the roving wheel or gear of a spinning mule means for gradually varying the arc of rotation of the roving wheel and hence gradually diminishing the length of roving fed by the rollers at each draw.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of devices hereinafter described and claimed. In the accompanying drawings,Figure 1 represents a top plan view of a portion of a spinning mule, showing the application of my invention thereto, the roving gear being shown in engagement with its worm; Fig. 2 represents a vertical sectional view, taken on line 22 of Fig. 1; Fig. 3 represents a perspective view of this improved attachment detached; Fig. 4 represents a detail perspective view of the roving gear and the parts for operating it; Fig. 5 represents a perspective view of a modified form of connection between the builder shoe and the bell-crank; Fig. 6 represents a side elevation of a modified form of operating mechanism for the stop button, adapted for application to the light type of mule.

In the embodiment illustrated, 1 denotes the head of the spinning machine, 2 the front rail thereof, and 3 the arms which support the rail 2 from the head 1. These arms or brackets 3 are connected by a longitudinallyextending rod 4,which serves'as a support for the spool stands (not shown.)

The two lower rollers 5 and 6 are connected by the usual gears 7 and are mounted in suitable brackets 8, secured upon the rail 2. On the roller 5 is fixed a pinion 9, which meshes with a pinion 10 mounted on a stub-shaft 11 secured to the outer end of an arm 12, carried by the rod 4 and slidable thereon. A sprocket gear 13 is also fixed on the stub-shaft 11, over which a chain 14 runs to impart power to the roller 5. This chain 1 1 runs over a sprocket wheel 12, made integral with one member 12" of a clutch mounted on the shaft 4, which shaft is always in motion while the mule is running. The clutch membel 12 is loosely and slidably mounted on the shaft 4, while the member 12 is fixed thereon and rotates continuously therewith, motion being imparted to said shaft by means not shown. The

roller 5 also carries the worm 15, which operates the roving gear 16, hereinafter described. The roving gear 16 is mounted to turn upon a stationary pivot 17 pro jecting from the plate or bed 18 which is slidable on the bed plate 19, secured to the front rail 2. A plate 20, preferably in the form of a disk, is also loosely mounted on the upper end of the stud or pivot 17, above the roving gear, and has an ear or lug 21 for a purpose to be described. This plate 20 is adjustably secured to the gear 16 by a set-screw 22, to provide for the disposition of the lug at any desired position on the gear. The rov ing gear 16 is also provided on its under face with a depending stop pin 23 for engaging a variable stop, herei'nafter described, whereby the arc of rotation of the roving gear is varied. A spring 24 is attached at one end to the roving gear 16 and at its other end to the head 1 for turning the gear in one direction, and the worm 15 turns it in the other direction against the tension of its spring A bell-crank lever 25 is fulcrumed to the frame of the mule,adjacent to the roving gear 16, and the vertical arm 27 thereof projects through an aperture in the roving gear bed plate 18 and is provided with a laterallyextending arm 28, having its end 29 bent at right angles thereto in position to engage a notch in the downwardly-curved member 31 of a double-arm trip-lever or trigger pivoted on the roving gear bed plate 18, adjacent to theroving gear. This trigger is approximately L-shaped, with its short arm 32 thereof extending over and in close proximity to the upper face of the roving gear and it is preferably made in the form of a dog or pawl.

stopped.

Attached at one end to the arm 27 of the bell-crank lever 25 is a spring 33, which is connected at its other end to the frame 1, and this spring holds the arm 26 of the bell-crank lever 25 normally in horizontal position ready to be engaged by a mule carriage, (not shown) on its inward movement, and the tooth Ol' lug 29 of the arm 28 is held normally out of engagement with the arm 31 of the trigger. Secured to the bed plate 19 is a bearing plate 35 having a longitudinal slot or recess 36 in its upper face, and an opening 37 in its end which communicate with the recess 36. Slidably mounted in said slot or recess 36, with one end extending through the opening 37, is a slide 38. On this slide 38, preferably near its inner end, is an apertured lug 39, which extends above the face of the block 35, and extending through the aperture in this lug is a push button or pin 40 having a head 41. disposed on said pin, between the head 41 thereof and the lug 39, to prevent jarring thereof when engaged by the pin 23 on the roving gear. A nut 43 is secured on the outer end of the pin 40 and holds it securely in place.

When the mule carriage moves inwardly and depresses the arm 26 of the bell-crank 25, the arm 27 thereof is pulled forward and brings with it the plate 18 and the gear 16 in position for the latter to mesh with its worm 15, which being in motion turns the gear in the direction of the arrow a. At the same time, the lug 29 engages the notch 30 of the trigger arm 31, whereby it is locked in this position until released, as will be hereinafter described. The rotating worm 15 moves the gear 16 in the direction of the arrow (1, and the roving is delivered thereby until the lug 21 on the plate 20 engages the toe of the trip arm 32, and thus disengages the arm 31 thereof from the lug 29. The bell-crank 25 and said lever is drawn backward by its spring 33, carrying with it the plate 18 and the gear 16 and disengages the latter from its worm, whereby the delivery of the roving is When the gear 16 is released from its worm, the spring thereof turns said gear backward until the pin 23 depending from its lower face strikes the spring cushioning button 40 carried by the slide 38 and it remains in this position until the mule carriage moves inward and operates the bell-crank to draw the gear into mesh with its worm, when the roving is again delivered.

In the form shown in Figs. 1 to 4, when the set of bobbins (not shown), gradually fills from the bottom to the top, the coping or builder rail 45, which is supported on the clamp 46 actuated or governed by the builder shoe 47, which is connected to the outer shoe (not shown) by the shaft 48, falls. These parts are supported about two inches above the floor by a stand or bracket 49, on which the clamp 46 is mounted. When the bobbins are beginning to fill, the shoe 47 remains inward or toward the left until the clamp 46 rises above the point where the shoe 47 now appears on Fig. 3 of the drawings. The clamp 46 slides up and down in the bracket 49, carrying with it the builder rail 45, as the shoe 47 works from the left to right and vice versa, and, as the bobbins continue to fill, the shoe 47 moves gradually outward toward the right causes the clamp 46 and rail 45 to drop slightly toward the floor or lower part of the shoe 47. In the outward course of the shoe a lug 50 on the shaft 48 on which the shoe 47 is mounted comes in contact with a collar 51 on a parallel shaft 52 and draws said shaft toward the A coiled cushioning spring 42 is right against the tension of its spring 53. This movement of the shaft 52 draws the arm 54 of the bell-crank lever outward and its upper arm 55 down, which in turn draws through the link 56 a crank-arm 57 downward and said arm 57 being keyed to a rock-shaft 58 turns said shaft and draws the arm 59 back or outward, whereby the rod 60 with its tiu'n-buckle 61 and thumb screw 62, which is connected to the slide 38, is drawn outward. As the bobbins gradually fill, the stop button 40 through the mechanism connecting it with the builder shoe, is moved gradually forward so that on each inward movement of the mule carriage, which connects the gear with its worm, the arc of said gear is slightly decreased at each operation, until on the filling of the bobbins it has ceased to turn altogether, and the bobbins are then removed and new ones set on the machine, and the parts set in operation to operate, as above described.

In the form shown in Fig. 5, a slightly modified form of mechanism is shown for automatically operating the outwardly-working stop button 40. This mechanism differs from that shown in Fig. 4 only in the operating means between the builder shoe 47 and the rod 52. In this form, the builder shoe 47 has a longitudinally-adjustable lug 50 projecting therefrom, which, on the outward movement of the shoe,

engages a lug or' stop 51 adjustably mounted on the rod 52 by means of a set-screw 52. An adjustable support for the rod 52 is shown in the form of a bracket 65, one member 66 of which is secured to the floor and the other member 67 is carried by the rod 52 and adjustably connected by a set-screw 68 with the member 66 through registering slots 69 and 70 in the respective members.

In Fig. 6 is shown means for operating a verticallymovable stop button '40 on a light pattern mule. The connection between the rod 52 and the shoe 47 is the same as in the other forms and hence will not be here described. The bell-crank connected with the rod 52 is placed in reverse position to that of the other forms, so that when the rod 52 is drawn forward, the arm 55 of said bell-crank is pushed upward. Connected to the arm 55 is a telescoping rod having a set-screw 76 for adjusting it at any desired length. The upper member 77 of this rod 75 has a laterally-extending arm 78 with its end 79 bent upwardly at right angles thereto and connected by a joint 80 with an L-shaped member 81, in the lateral arm 82 of which the shank of the button 40 is mounted. This joint provides for the easy working of the rod in its bearing.

With the mechanism hereinbefore described it is possible to commence sooner or later to shorten the arc of the roving gear and to cut off more or less roving during the time in which the evener is in operation.

The right is reserved to use a turn buckle, an auxiliary pin or in its place a single and connected rod for the turn buckle or any other suitable means.

I claim as my invention,

1. A yarn evener attachment for spinning mules comprising a roving; gear having a stop on its lower face and a lug on its upper face, a variable stop arranged in the path of the stop on the lower face of the roving gear, means for operating said gear, an approximately L-shaped trip lever pivotally mounted adjacent to said roving gear with its short arm arranged over the upper face of the roving gear in position to be engaged by the lug on said gear, a bell crank lever fnlcrnmed adjacent to said roving gear and having one arm arranged to engage the long arm of said trip lever, and means for holding the other arm of said bell crank lever in position to be engaged by the mule carriage.

2. In a spinning mule, the combination with a builder shoe and a roving delivery-controlling gear having a stop, of a slide having a stop to coact with said geai carried stop, a rock-shaft operating said stop-carrying slide, an arm upon said shaft, :1 bell-crank, a link connecting said arm and said bell-crank, a rod connected to the other arm of said bell-crank, collars secured to said rod, a coiled spring upon said rodbetween said collars, a lug secured to said builder shoe shaft and adapted to engage said rod and draw it back to operate said stop-carried slide and vary the arc of movement of said roving gear.

3. In a spinning mule, the combination of a shaft having a builder shoe secured thereto, a clamp mounted to ride on said shoe and having a builder rail connected thereto, an apertured lug secured to said shaft, a shaft mounted to slide loosely in the'aperture on said lug and having a collar thereon, outside said lug, another collar secured to said shaft, a spring arranged on said shaft between said lastanentionedcollar and said apertnred lug, a roving delivery controlling gear having a stop pin on its lower face, a plate having an adjustable lug for engagement with said pin, and operating means between said plate and said last-mentioned shaft for moving said lug to vary the arc of movement of said gear.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

ROBERT J. HARRINGTON.

Witnesses EDWARD MCCAULEY, JOSEPH A. DALY.

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