US745030A - Spinning-frame. - Google Patents

Description

No. 745,030. PATENTBD NOV. 24, 1903. W. P. WINGATE. SPINNING FRAME.

APPLICATION FILED JULY 31. 1903.

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W. P. WINGATE. SPINNING FRAME.

ILED 31 ITED STATES Patented November 24, 1903.

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SPECIFICATION forming part of Letters Patent No. 745,030, dated November 24:, 1903.

Application filed July 31, 1903.

T0 aZZ whom, it may concern.-

Be it known that I, WILLARD P. WINGATE, a citizen of the United States, residing at Charlotte, in the county of Mecklenburg and State of North Carolina, have invented a new and useful Spinning-Frame, of which the following is a specification.

This invention relates to certain improvements in spinning-frames, and has for its principal object to provide for an increase in the speed of winding cops or bobbins.

At the commencement of the spinning operation, during the Winding of the first layers of the bobbin the traveler is disposed at such an angle with relation to the bobbin that the thread is subjected to severe strain and is often broken, the draft of the yarn being of such character as to render the thread tender or form weak spots, which afterward cause trouble in weaving, and at the same time the thread does not receive the proper twist. After the bobbin has been partly Wound the angle of the traveler is materially lessened, growing less with each layer of yarn, and the draft is therefore materially lessened and the thread twisted to a greater extent. Where the bobbins are driven at uniform speed from the beginning to the end of the winding operation, the thread will be smaller and softer at the starting of the winding than at the completion of such winding. To overcome these difficulties, I have devised a mechanism by means of which the speed at which the bobbins are driven is in direct proportion to the gradually-increasing diameter of the bobbin. 7

A further object of the invention is to construct a speed -governing mechanism that will be shifted by the operation of the traverse mechanism and the ring-rail.

With these and other objects in view the invention consists in the novel construction and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size, and minor details of the structure may be made without departing from the spirit or Serial No. 167,786. (No model.)

rail carries the usual spindles 3,that aredriven from a cylinder or drum 4:, and the usual ringrail 5 is provided with rings and travelers for the thread. Above the spindles are drawingrollers 6 of the usual type. The ring-rail is connected at intervals to the lifter-rods 7, that are operated upon by rocker-arms 8,carried by rock-shafts 9, extending transversely across the lower portion of the frame and under the control of the usual traverse-cam for raising and lowering the ring-rails during the winding of the cops.

The mechanism thus far described is common to several forms of spinning-frames and in the operation thereof at uniform speed the thread or yarn is in many cases likely to lack uniformity owing to the causes hereinbefore mentioned.

In carrying out my invention I extend the cylinder or drum shaft 10 to a point outside the main frame, and on said shaft is secured a conical drum or pulley 11. At the upper portion of the frame are bearings for the re ception of a horizontally-extending drivingshaft 12, carrying fast and loose pulleys 13, around which may be extended a driving-belt 14, leading from a suitable source of power. The shaft 12 also carries a conical drum or pulley 14', arranged in the direction opposite to that in which the pulley 11 is disposed. The two drums or pulleys are disposed one directly above the other and are preferably of the same size and shape. As a driving means there is employed a belt 15, passing around both pulleys and provided with a shifting device under thecontrol of the traverse mechanism.

The main frame is provided with bearings for the reception of a horizontal shaft 17, on which is formed a screw-thread 18 of a length corresponding to the length of the conical pulleys, and on this threaded shaft is mounted a slide 19, movable in a direction longitudinally of the two conical pulleys and provided near its lower end With a rearwardlyextending finger 20, having pendent flanges that embrace the opposite sides of a bar 21, forming a part of the frame. The arm 19 is provided with a removable pin 21, adapted to fit in an opening in the arm and to engage the threads, so that when the shaft is turned the belt-shifter will be moved to travel the belt from one end of the conical pulleys to the other, while to readjust the machine after dotting the pin may be removed and the belt-shifter slid by hand back to initial position or with the belt in engagement with the smallest part of the pulley 14' and with the largest diameter of the pulley 11. The upper end of arm 19 is provided with an eye 23, embracing one run of the belt, and the lower end of the shifter-arm has a pivoted section 24, provided with bifurcated arms that carry a small spindle or shaft 25, on which is mount-.

ed a heavy idler-roller 26, that bears against the outer face of the opposite run of the belt, and said roller is preferably provided with edge flanges in order to assist in moving the belt longitudinally of the conical pulleys.

' To the inner end of the screw-shaft 17 is secured a ratchet-wheel 27, and on said shaft is also mounted a bell-crank lever 28, one arm-of which carries one or more pawls 29 for engagement with the teeth of the ratchetwheel. To one of the rock-shafts of the traverse mechanism is secured a rocker-arm 30, having an elongated slot 31 for the reception of a securing-bolt 32, projecting from a collar 33 on a lift-rod 34, the slot permitting adj ustment of the position of the collar and corresponding alteration in the extent of movement of the lift-rod at each operation of the rock-shaft. The upper end of the rod 34 is pivotally connected to a pin carried by a sleeve or collar 35, embracing one arm of the bell-crank lever 28, and said collar is adjustable on the arm in order to vary the operative movement of the pawls 29.

In the operation of the device the belt 15 is in engagement with the largest diameter of the conical pulley 11 and the smallest diameter of the conical pulley 14. As the winding of the bobbins or cops progresses,the traverse mechanism is operated in the usual manner, and when the rock-shaft is operated the liftrod 34 is raised and moves the pawls 29 to an angular extent dependent on the point of attachment of the lift-rod to the rock-lever and bell-crank lever. On the downward movement of the traverse mechanism the pawls are returned to initial position, and the threads of the shaft 17 cause a slight movement of the belt-shifter until during the winding of the last layer the belt is in engagement with the largest diameter of the conical pulley 14 and with the smallest diameter of the conical pulley 11.

It is found in practice that this mechanism produces not only a superior yarn as regards uniformity of twist and size, but that it enables the completion of the winding operation to be more quickly accomplished and gradually increases the capacity of the spinning-frame.

It is practically impossible to run the spindles at the highest speed during the starting of the spinning operation, for the reason that the angular position of the traveler is such as to exert the fullest draft or drag on the thread, and the latter is likely to be weakened and imperfectly twisted. As successive layers are added to the bobbin and its diameter increases, the draft is more favorable and the traveler can more readily be drawn around, so that the speed may be increased and the winding more quickly accomplished Without danger of breaking the thread, while at the same time the slightly-increased draft will result in the production of a thread or yarn of more uniform character.

Having thus described the invention, what is claimed is- 1. The combination with a spinning-frame, of a pair of oppositely-disposed conical pulleys, a belt connecting the same, a belt-shifting mechanism connected to both runs of the belt, a threaded shaft for operating the beltshifter, a ratchet-wheel carried by the shaft, a bell-crank lever pivoted on the shaft, a pawl carried by the bell-crank lever and engaging the ratchet-wheel, a rocker-arm secured to one of the rock-shafts of the traverse mechanismand provided with a longitudinal slot, and a lift-rod having operative connection with the slotted bar and with the bell-crank lever.

2. The combination with a spinning-frame, of a pair of oppositely-disposed conical pulleys, a belt connecting the same, a belt-shifter engaging both runs of the belt and provided with a shaft-receiving opening, a threaded shaft adapted to said opening, a removable pin carried by the shifter for engaging the threads, a ratchet-wheel secured to the shaft, a bell-crank lever mounted on the shaft, a pawl carried by one arm of the bell-crank lever and engaging the ratchet-wheel,an adjustable sleeve or collar mounted on the opposite arm of the bell-crank lever, a longitudinallyslotted rocker-arm secured to one of the rockshafts of the traverse mechanism, a collar adjustably secured in said slot, and a lift-rod connecting the collar to the sleeve of the bellcrank lever.

3. In a device of the class specified, the combination with a pair of pulleys, of a belt connecting the pulleys, a screw shaft, a

guided slide movable in a direction parallel In testimony that I claim the foregoing as with the axis of rotation of the pulleys and my own I have hereto affixed my signature in 10 having an eye embracing one run of the belt, the presence of two Witnesses.

a pivotally-mounted bifurcated arm carried by the lower portion of said slide, and a WVILLARD WINGATE' flanged roller having end bearings supported Witnesses:

by the pivoted arm and serving as a combined VVQ R. JONES,

belt shifter and tightenel. l C. V. FITE.

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