US 2092389 A
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S pt- 7,1937; c. H. COLVIN 2,092,389
- FLYER I Filed NOV. 2, 1935 much INVENTOR Patented Sept. 7, 1937 rarer orig FLYER Charles H. Colvin, Morris Township, Morris County, N. J.
Application November 2, 1935, Serial No. 48,005
This invention relates to a flyer or running guide for use in connection with apparatus for twisting yarn.
As is well known it is desirable when throwing yarn, that is, when twisting yarn by drawing it off a revolving bobbin to impart a twist to th yarn, to interpose a running guide or flyer between the supply bobbin or yarn package and the fixed and reciprocating guides which lead the yarn to the receiving or take-up bobbin.
This invention aims at improving the construction of such fiyers to make them more suitable and useful for the purpose described.
It is an object of this invention to provide a flyer which may be readily installed on present throwing spindles, and which may be operated at high speed without throwing oil, and for long periods without addition of lubricant to the bearings thereof. It is a further object to provide a flyer wherein the guide wires are clamped and keyed in place and wherein such wires are readily replaceable.
The accompanying drawing illustrates a preferred form of my invention, but it is not intended to limit the scope of the invention to the precise structure disclosed, many modifications being possible within the scope of my invention as hereinafter claimed.
Figure l is a view of my flyer in elevation, including by way of illustration a portion of the throwing frame and of the yarn to be thrown.
Figure 2 is a View in section on the line 2-2 of Figure 1, including a fragmentary View of the bobbin or yarn package and of the spindle blade by which it is carried.
Figure 3 is a view in section through the flyer at the line 33 of Figure 2, and illustrates particularly the form of the wires and the method of clamping and keying said wires.
Now referring more particularly to the drawing for an explanation of the invention, the spindle blade 8 carries the supply bobbin 9 upon which is wound the yarn Ill to be twisted. A single thread of the yarn is shown at It! in Figure 1.
Also carried by the blade 8 and illustrated as telescoped over it (though it might equally well be inserted in a. socket within the blade) is the body ll of the flyer. Such blades are commonly made with a cylindrical portion l3 surmounted by a tapered portion I4. I make the body ll of my flyer recessed on two diameters, the larger of which diameters fits snugly upon the cylindrical portion l3 of the blade, where it is held tight by the spring tension created by slightly pinching the body to tend to close the slot l5; and the smaller of such diameters forms a step in relation to said larger diameter and at this step rests on the tapered portion it of said blade near its extreme top. I thus provide for the association of flyer and blade in such a way that there will be little or no radial play between said flyer and blade, and hence little chance [or the fiyer to vibrate or to run out of truth. An outer section ll, of the body H is knurled to aid in mounting and dismounting the flyer.
At its upper end the body ll carries a staff l8 upon which is journaled the barrel l9, by means of bearings 2i and 22 which are preferably of a material such as oilite bronze which is porous and holds a supply of oil sufiicient for operation for a long period without renewal of lubricant. This feature is of importance because the lubrication of flyers involves the hazard of spoiling the yarn by getting oil on it. Such a bearing material as I propose to use largely eliminates this difliculty because the porous bronze tends to retain the oil rather than to let it fly out as does an ordinary bearing.
The barrel i9 is retained on the staff l8 by a slotted nut 28. The outside of the barrel i9 is substantially cylindrical, with an enlarged upper end which may be hexagonal as shown or otherwise arranged for easy gripping by tool or by hand, and the lower end carries a thread upon which is screwed a nut 23. Interposed between the extended head and the nut 23 are a washer 24, two guide wires 23 and 2? and sleeve 28.
In use the yarn ill is led from the bobbin 9 are made with their center portions of the simple substantially semi-circular form shown in Figure 3, adapting them to be laid in the recesses of the sleeve 28 and to be clamped in place by screwing up of the nut 23 on barrel E9. The maintenance r of the interrelationship of the axes of the wires 26 and 2i about the axis of the staff It is provided by the notches 32 and 33, and by corresponding notches at the lower end of the sleeve 28, through which pass the extending portions of the wires 26 and 21.
Having thus disclosed and described my invention, I claim its novelty as follows:
1. In combination with a frame for throwing yarn and having a spindle, a flyer, said flyer cornprising a body having a socket adapted to fit over and rest upon the top of said spindle and a staff, a guide for said yarn, and said guide journaled upon said staff.
2. In a flyer, means for clamping guide wires, comprising a substantially cylindrical member having an enlarged head on one end and having the other end threaded, a nut on said threaded end, and a sleeve having at each end an annular recess, the walls of which are cut away at opposite sides, guide wires positioned in said recesses and extending through said cut-away walls and adapted to be locked in place by tightening the aforesaid nut.
3. A fiyer for the blade of a throwing spindle said blade having a cylindrical portion surmounted by a tapered portion, comprising a body having a staff, a yarn guide journaled upon said staff, said body being recessed on two diameters, the larger diameter adapted to fit upon said cylindrical portion of said blade and having a slot throughout a part of the length of said larger diameter to cause the lower end of said body to fit snugly upon said blade, and the smaller diameter adapted to fit upon said tapered upper portion of said blade.
4. A flyer for the blade of a throwing spindle said blade having a cylindrical portion, comprising a body having a staff, a yarn guide journaled upon said stafi, said body being recessed and adapted to fit upon said cylindrical portion of said blade and having a slot throughout a part of the length of said body to cause the end of said body to fit snugly upon said blade.
5. In a flyer for a throwing spindle, a body having a socket adapted to fit over and rest upon the top of said spindle and a stafi", a guide-carrying member, porous bearing elements interposed between said member and said staff to journal said member on said staff, and said porous elements being impregnated with a lubricant.
6. In a flyer for a throwing spindle, a body having a socket adapted to fit over and rest upon the top of said spindle and a stafi, a guide-carrying member, and porous bearing elements interposed between said member and said staff to journal said member on said stafi.
CHARLES H. COLVIN.