US2141724A - Spinning and twisting - Google Patents

Description

P. R. ROADLEY SPINNING LAND TWISTING Filed Nov. 2, 1937 INVENTOR Perc 5 Raymond R000 65 BY $2M Patented Dec. 27, 1938 mam 2,141,724 SPINNING AND TWISTWG Percy Raymond Roadley,

Canada, assignor to Drummondville, Quebec, Gelanese Corporation of America, a corporation of Delaware Application November 7 Claims.

This invention relates to the packaging of yarnor thread from a synthetic yarn spinning device or from any suitable source upon a twisting or repackaging device. This invention relates more particularly to spindle, whorl and throwing-on fiyer assemblies that permit of quick throwingon and prevent injury to operatives or their tools.

An objectof the invention is the'manufacture of a whorl and spindle assembly that permits of a quick throwing-on of thread to bobbins, spools, quills or other package cores. Another object of the invention is the manufacture of a whorl, spindle and a thread catching element or fiyer assembly so arranged and so constructed that the thread can readily and quickly be thrownon to a package carried thereby and which is non-injurious to employees hands, theinknives or other tools. Other objects of this invention will appear from the following detailed descrip- 0 tion and drawing.

In the drawing. wherein like reference numerals refer to the same or similar elements in the respective views, there are shown two modifications of my invention;

Fig. 1 is a view,-partly-in cross-section, showing my invention employed in connection with aspinning device having a cap twisting take-up,

Fig. 2 is a plan view of Fig. 1 with the cap and bobbin removed,

Fig. 3 is a view, partly in section, showing another embodiment of my invention as employed in connection with the ring twisting device, and

40 throwing-on of the thread which is of particular importance in the spinning of artificial threads which are normally produced at the rate of 200 to 300 or more meters per minute. Prior to this invention, the devices employed for the throwingon of the thread were injurious to the operators hands or were costly in installation or in maintenance. Heretofore, atleast one of the flanges of the bobbins or spools was equipped with a round headed tack orscrew projecting from the periphery thereof. These projections-when they hit the fingers of an operator often made a. very bad cut. Moreover, the projections being made of meta! were also damaging to theknives used 2 by the operator to cut waste thread from the Fig. 4 is a detailed view of the throwing-on 2, 1937, Serial No. 172,325

feed rolls and to threading hooks used in threading the thread through guide eyes, coating devices, etc. To prevent such injury-to operators and tools, spools or bobbins having a plurality of notches in their peripheral edges were employed. 5 Although these notches did not cut the fingers, .of the operators; they nevertheless produced abrasions thereon when the finger came into con-v tact with the same. Often the knives of the operatives were caught by thenotches and resulted 10 in damageto the bobbin or to the knife; or both. Other alternatives have also been employed forthe throwing-on ofthe thread. For example, cord or a piece of notched leather was placed under the whorl to effect the throwing-on; These expedients were more or-less successful but they have the disadvantage of collecting waste and they need frequent cleaning and renewals.

In accordance with this invention, there is provided a loosely rotating fiyer mounted under the package, which fiyer is relatively light in weight so that it has little inertia and is adapted .to' stop immediately and without injuring the finger or tool of an operator when it strikeshe same. While the device of the present invention 25 is safe the function of throwing-on is in no way" impaired. The device of thepresent invention r is simple and durable and once installed lasts indefinitely.

In accordance with my invention, 1- form an 30 assembly of spindle, whorl and throwing-on fiyerin which the fiyer is adapted to stop immediately upon contact with anything heavier than a thread, thus preventing injury to operators andtheir tools. Furthermore, by employing this invention, no alteration need be made on spools orbobbins. Other details of the invention will appear from'the following description made in reference to the drawing.

In Figs. 1 and 2 of the drawing there is shown 40 an assembly, constructed in accordance with this invention, adapted for use on a spinning cabinet of a synthetic thread forming device. In this device, the support for the package or'whorl is adapted to rotate continuously even while loading and unloading the whorl. This embodiment of the invention comprises a spindle l of any suitable type adapted to be supported byany suit-- able bolster (not shown) on the spinning machine. The spindle i is held stationary and the package is supported and rotated by a whorl 2. The whorl is provided with a cap 3 adapted to overhang the bolster and prevent the lubricating oils from being thrown onto the thread. The cap 3 and 'rim 4 provide a pulley S-adap tedto retain a driving belt 6 for rotating the whorl. The groove in pulley may be of any suitable shape depending upon whether the driving means is a cord, belt, V-belt, etc. The section above the rim 4 is turned to form a bearing groove for a flyer I. The upper edge of the bearing groove terminates in a flange 8 adapted to support a bobbin 9. The bobbin 9 fits loosely over the whorl 2 which extends at least partway through the bobbin. Mounted upon the spindle l is a cap ll. The spindle l and cap ll may be of a construction similar to the spindles and caps heretofore used. The bobbin or spool 9 may be any standard bobbin or spool and with the present assembly needs no extra attachments, notches or the like to aid in throwing-on. If desired, the whorl 2 may be a piece of tubing with the pulley 5 and rims 3, 4 and 8 as a separate piece attached thereto or the whorl and pulley may be made in one piece. However, for the purpose of describing this invention and in the appended claims the tube, pulley and flyer bearing are together designated as the whorl.

In operation an empty bobbin 9 is placed upon the whorl 2 and the cap II set on spindle I. The thread I2 is held close to the. bottom periphery of the bobbin in which position the flyer I attaches the thread and starts it winding upon the bobbin. The flyer I is preferably made of spring steel or other resilient material or a resilient material coated with a suitable covering material. The flyer 1 is formed into a substantially circular shape adapted to f t about the turned portion of the whorl, the circular part being smaller than the rim 8 of the whorl. For the purpose of assembly and for renewal of the flyer and to enable the flyer to be placed over the rim 8, the circular part of the flyer is divided into two halves and the two halves are connected by extending U- shaped members I3. At the outer end of the U- shaped members are hooks M. The hooks l4 are preferably made such that they have a curved outer edgewith no points or ends which can contact the fingers of an operator throwing on a thread.

In Fig. 3 is shown a modified form of my invention wherein the spindle, as well as the whorl, is adapted to be rotated. This type of device may be employed in ring twisting and repackaging devices. The assembly comprises a bolster 15 adapted to be attached to a frame (not shown) by means of nuts l6 adapted to rest on top of the frame and nuts I! adapted to tighten onto the under part of the frame. This may be any standard construction. On the interior of the bolster I5 is the usual dampening and breaking attachments l8. Mounted upon the spindle l is a short whorl [9 having a pulley face 2! for receiving a driving belt. Above the pulley face 2! are two rims 22 and 23 having a groove therebetween. This groove is adapted to receive and retain therein a throwing-on flyer as shown and described in Fig. 4. In operation a quill, bobbin or other type core is slipped on the upper end of the spindle I and rests upon a rim 23 which acts as the driving means for a rotating package core. The operation of throwing-on is the same as that described with reference to Fig. 1.

It is to be understood that the foregoing'detailed description is merely given 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 thread packaging device employing a rotating package the combination of a. spindle, a whorl and and a throwing-on flyer loosely mounted on the whorl.

2. Ina thread packaging device employing a rotatingv package the combination of a spindle, a whorl, having a spooled-out section and a throwing-on flyer mounted for free rotation in the spooled-out section.

- 3.In a thread packaging device employing a I rotating package the combination of a spindle, a whorl and a throwing-on flyer comprising two semi-circular members adapted to loosely fit on the whorl.

4'. In a thread packaging device employing a rotating package the combination of a spindle, va

whorl and a throwing-on flyer comprising two throwing-on flyer loosely mounted on the whorl.

'7. In a thread packaging device adapted for use on a synthetic thread forming cabinet employing a continuously rotating take-up package the combination of a stationary spindle, a whorl and a throwing-on flyer loosely mounted on the whorl.

. PERCY RAYMOND ROADLEY.

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