US2587783A - Starter handle - Google Patents

Description

March 4, 1952 w. T. STEARN STARTER HANDLE Filed July 27, 1950 INVENTOR- WILLIAM T. STEARN '11anx711111111111/11III111111111111IIIIIIIBiiiiIl/ill 2 -HU w MA z 1 Patented Mar. 4, 1952 UNITED STATES PATENT OFFICE STARTER HANDLE William '1. Steam, Cumberland, Md., assignor to Celanese Corporation of America, New York, N. Y., a corporation of Delaware Application July 2'7, 1950, Serial No. 176,142

5 Claims. 1

This invention relates to yarn winding devices and relates more particularly to an improved means operating the starting mechanism on a yarn package winding device employed for the winding of yarn packages such as cones, tubes and the like.

An object of this invention is the provision of an improved means for operating the starting mechanism of a yarn winding machine adapted to Wind cones of yarn on a horizontally disposed, rotatable driven spindle which supports the core of the yarn package being wound.

Another object of this invention is to provide a novel starting handle for a yarn coning machine of a type widely employed in the art, which starting handle is normally held out of contact with any moving parts on said yarn package winding device yet is readily adapted to be placed in 0perative position by a moderate pressure thereon.

Other objects of this invention will appear from the following detailed description and the accompanying drawing, in which a preferred embodiment of my novel starting handle is shown.

In the drawing,

Fig. 1 is a view in perspective of a portion of a yarn package winding machine showing my novel starting handle and its relationship to elements constituting the starting mechanism of said yarn winding machine.

Fig. 2 is a side elevational view of said yarn winding machine showin the yarn package being wound, the spindle supporting the same and. the relationship of my novel starting handle to the operative parts of the machine starting mechanism,

Fig. 3 is an end view of that portion of said yarn winding machine shown in Fig. 2,

Fig. 4 is a view, in section, of my novel starting handle, taken along the line 4-4 in Fig. 2 and Fig. 5 is a cross-sectional view of the starting handle taken along the line 5-5 in Fig. 2.

Like reference numerals indicate like parts throughout the several views of said drawing.

The yarn winding machine, in connection with which my novel starting handle is most advantageously employed, is known in the art as the Universal No. 50 and is manufactured by the Universal Winding Machine Co. A thorough and detailed description of said machine and its on erative parts is presented in numerous trade pubby said Universal Winding Machine Company, f.

ill

which bulletin deals exhaustively with the operation and maintenance of this machine, is one of the most valuable. This bulletin is a reprint from the publication Texile Industries. My invention is concerned with an improvement in a specific portion of this machine, namely, the starting handle.

Referring now to the drawing, and more particularly to Fig. 2, the conventional elements of said winding machine comprise, in part, a driven spindle shaft 6 rotatably mounted in a bearing block 1 which is suitably fixed to the frame (not shown) of the winding machine. Spindle shaft 6 is adapted to carry thereon a cone holder 8 which is slotted at the base thereof to form expansible fingers (not shown) which receive and grip the tube or cone (not shown) constituting the core upon which a yarn package 9 is wound by means of the combined action of the rotation of spindle shaft 6 and a suitable yarn traverse mechanism (not shown). The yarn traverse -mechanism is provided to distribute the yarn windings in any desired manner on the cone which constitutes the yarn package support.

Suitable means, (not shown) are provided for driving spindle shaft 6. The driving means normally comprises a pulley keyed to spindle shaft 6 and a driven belt (not shown), which belt is adapted to frictionally engage the surface of said spindle shaft pulley when a winding action is desired. Normally, a slack in the driven belt allows the spindle shaft pulley to remain stationary and spindle shaft 6 does not rotate. When the slack in the belt is taken up by permitting an idler pulley (not shown), provided with a spring-tensioned mount ng, to be pressed against said belt, the spindle shaft pulley is frictionally engaged and spindle shaft 6 is rotated which causes the desired winding action to take place. The starting and stopping of said winding machine involves the movement of said idler pulley toward and away from the drive belt so as to engage and disengage said belt from frictional contact with the spindle shaft pulley. The desired movement of the idler pulley is effected by the action of a suitable lifter arm (not shown) mounted on a rotatable lifter rod I l journ-alled in bearing block 1 The axial rotation of lifter rod H to operate said lifter arm is achieved by a suitable rocking movement of said lifter rod H by means of my novel starting handle, which handle is generally indicated by reference numeral [2. The construction and arrangement of starting handle i2 constitutes my invention.

expander collar 25 as shown in Fig. 2.

Starting handle l2 comprises a bar l2 drilled through the center to provide a hollow portion [4 in which a coil spring I5 is inserted. The upper end of coil spring i5 is retained under the desired compressive stress by means of a set screw l6 which is threaded into the upper end of hollow center M which is tapped for a short distance to provide the necessary threads IT. The

lower end of compressed coil spring l5 bears against a stub shaft [8 which passes through longitudinal slots 49 near the base of starter handle l2. Stub shaft I8 is supported in the arms 2| of a bifurcated member 22 which is operatively connected to rotatable lifter rod H. The lower end of starting handle I2 comprises a shank 23 provided with a lip 24, which normally clears an expander collar 25 but is adapted to be brought into contact with the base of said collar when a full yarn package is to be doffed.

The remaining elements shown are conventional and comprise a brake 26, a brake wheel 21 and ,a dog segment 28 which looks the starting mechanism in running position in cooperation with other conventional means (not shown) when winding is commenced.

In order to start the desired winding operation employing the cone winding device equipped with my novel starting handle l2, an empty tube is forced upon cone holder 8 until grip ed by the fingers thereof, the starting handle is then grasped by the operative and, when viewed as shown in Fig. 3. is roc ed in a clockwise direction. This action li ts brake 26 from the surface of brake wheel 21, rotates lifter rod I! and allows the lifter arm to release the idler pulley. The idler nullev turns due to the s ring loading of the mount carrving said idler pullev and this action takes up the slack in the driving belt. The tensionin of the driving belt causes the latter to rotate the pulley keved to s indle shaft 6 which rotates the cone holder on shaft 6 and, when a yarn end is thrown on to the em ty cone holder by the o erative, the winding of the yarn package commences. The yarn traverse provided distributes'the yarn windings and forms a yarn package ofthe desired shape. When the yarn package has reached the desired size the machine must be stopped, the full package doffed and the winding of another package commenced.

' The winding is halted by rocking the starting handle H2 in a counter-clockwise direction. This action releases dog se ment 28, rotates the lifter rod H to cause the lifter arm to force the idler pulle upwarrland allo the drive belt to slacken and also a plies brake 26 to brake wheel 2! thus halting the rotation of spindle shaft 6. After spindle shaft 5 has halted, starter handle I? is forced downward against the pressure of spring [5 to bring shank 23 and lip 24 below and behind Starter handle I2 is then rocked about the axis of stub shaft l8 and out of the plane in which it moves 'collar' 25 to be forced into cone holder 8 which spreads the slotted fingers at the base thereof and releases the cone constituting the core of yarn packaged. Upon being released, starter handle I2 is pressed upward by spring l5 until stub shaft l8 is again brought against the lower edge of slots IS, the full yarn package is removed, an after an empty cone is placed upon the 9011 holder 8, the operation is repeated.

My novel starter handle is highly advantageous since, in normal running position, it remains out of contact with any moving parts, e. g. expander collar 25. Accordingly, no wear is experienced as in the case of the usual starter handle which is normally in constant contact with expander collar 26, and, furthermore, a commonly encountered difficulty, comprising the formation of rust spots on the yarn packages due to such frictional contact, is entirely eliminated.

It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described my invention, what I desire to secure by Letters Patent is:

1. In a yarn winding device including a rotatable spindle, a yarn package holder on said spindle, drive'means for said spindle and a rotatable rod adapted on being rotated to actuate said spindle drive means, the combination therewith of a handle adapted to rock in a plane to rotate said rod, means operatively connecting said handle to said rod, said connecting means in cluding a pivotal mounting whereby said handle may be tilted out of the above-mentioned plane; and means cooperating with said handle and said pivotal mounting allowing the position of said handle relative to the pivotal mounting to be shifted in a vertical direction.

2. In a yarn winding device including a rotat able spindle, a yarn package holder on said spindle, drive means for said spindle and a rotatable rod adapted on being rotated to actuate said spindle drive means, the combination therewith of a hollow handle adapted to rock in a plane to rotate said rod, means operatively connecting said handle to said rod, said connecting means including a pivotal mounting forming a fulcrum about which said handle may be tilted out of the above-mentioned plane, and spring means within said handle cooperating with said handle and pivotal mounting allowing the position of said handle relative to the pivotal mounting to be shifted in a vertical direction against said spring means.

3. In a yarn winding device including a rotat-' able spindle, a yarn package holder on said spindle, drive means for said spindle and a rotatable rod adapted on being rotated to actuate said spindle drive means, the combination therewith of a hollow handle provided with oppositely disposed longitudinal slots intermediate the ends thereof and adapted to rock in a plane to rotate said rod, means operatively connecting said handle to said rod, said connecting means iiieluding a pivotal mounting having a shaft passing through said slots forming a fulcrum about which said handle may be tilted out of the abovementioned plane, and spring means cooperating with said handle and said pivotal mounting allowing the vertical position of said handle relative to the pivotal mounting to be shifted.

4. In a yarn winding device including a rotatable spindle, a yarn package holder on said spindle, drive means for said spindle and a rotatable rod adapted on being rotated to actuate said spindle drive means, the combination therewith of a hollow handle provided with oppositely disposed longitudinal slots intermediate the ends thereof together with a shank portion below said longitudinal slots and adapted to rock in a plane to rotate said rod, means operatively connecting said handle to said rod, said connecting means ineluding a pivotal mounting having a shaft passing through said slots forming a fulcrum about which said handle may be tilted out of the above-mentioned plane, and compressed spring means within said hollow handle normally maintaining the fulcrum formed by said shaft and said longitudinal slots at the lower edge of said slots but permitting the fulcrum to be shifted by a ver-- tical pressure on said handle.

5. In a yarn winding device including a rotatable spindle, a yarn package holder on said spindle, drive means for said spindle and a rotatable rod adapted on being rotated to actuate said spindle drive means, the combination therewith of a hollow handle provided with oppositely disposed longitudinal slots intermediate the ends thereof together with a shank portion below said longitudinal slots and adapted to rock in a vertical plane to rotate said rod, means operatively connecting said handle to said rod, said connecting means including a pivotal mounting having a shaft passing through said slots and forming a fulcrum about which said handle may be tilted out of the above-mentioned plane, compressed spring means within said hollow handle and means cooperating with said handle for varying the compressive stress on said spring, said compressed spring means within said handle bearing on said pivotal mounting and normally maintaining the position of the fulcrum formed by the shaft and said longitudinal slots at the lower edge of said slots but permitting the fulcrum to be shifted to another position along said slots by a vertical pressure on said handle.

WILLIAM '1. STEARN.

REFERENCES CITED UNITED STATES PATENTS Name Date Parks May 3, 1938 Number

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