US1920414A - Flier construction - Google Patents

Description

Aug. 1, 1933. M, J. MQHALE FLIER CONSTRUCTION Filed Feb. 19, 1931 Mew/15L J Ma 1 4a,

5- w W a??? l m I w mill 30 tially Patented Aug. .1, 1933 omrso STATES PATENT OFFICE",

' such feet.

the engagement of the eccentric foot with the retaining shoulder the bushing.

Such prior art installations are open to numerous objections, the chief of which are the increased cost in preparing the eccentric foot and the wear on 'thelatter due to the single point con-, tact of its surface whichengages the retaining shoulder of the bushing.

t is an object of this invention to provide an improved bushing for insertion into bobbins.

Yet another object of this invention is the provision of an improved flier block and retaining means therefor, the latter being adapted for insertion intobobbins.

A further object of this invention is the provision of improved flier block retaining bushings adapted to providea bearing surface of substan- 180 for the retaining flanges ofthe blocks.

These and other desirable objects and advanta'ges of the present invention will be described in the accompanying specification and illustrated in the drawing, certain preferredembodiments being disclosed by wayof illustration only, for, since the underlying principles may be embodied in other specific constructions, it is not intended to be limited to the ones here shown, except as closed the usual bobbins I, mounted on spindles. 2, which are tapered to engage the central axis of the bobbins. The spindles are provided at their upper portions with sections 3 of uniform diamsuch limitations are clearly imposed by the ap-.

eter which are adapted to support the freely rotatable flier blocks, 4, 5, shown inFigs. 1 and 2 respectively.

The improved flier blocks which form the essential part of the present invention are similar in construction to those shown and claimed in my applications Serial Nos. 458,212, and 489,401, filed May 31,-1930and October 17,1930, andare dis tinguished therefrom in that the bottom portion is provided with a retaining'foot or flange 6 of uniform external diameter coaxial with the longitudin'al axis of the block. By providing a re taining foot or flange of uniform diameter, it is possible to form the blocks in an automatic ma-, chine, and to avoid the usual step of punching or grinding off a portion of such flange to form an eccentric foot.

The blocks may be provided with any suitable type of flier wires 8, which are here shown as of the drop arm type, and which are retained in or on the blocks by any suitable means such as a knurled nut 9 orthe integral slotted head 10, the details of whichare shown and claimed in my applications above referred to.

The footed members or blocks 4, 5, are respectively adapted for engagement with retaining bushings 11, 12, which are inserted in the bobbins. These bushings comprise dished members, having skirted portions 13, adapted to engage suitable depressions 14 formed in the bobbins and are concentric with the axis of the spindles 2 for a purpose to be described more in detail hereinafter.

The novel bushings of the present invention are characterized by the provision of an improved or extended'bearing surface or surfaces, as will now be described in some detail. Referring more particularly'to Fig. 3, it will be noted that bushing 11 is provided with a non-circular aperture 17 in the end, which aperture may be substantially oval shaped, as shown. By inserting the foot 6 of a flier block into the aperture 17, the said foot may be introduced into the bushing and the block moved over so as to permit the section3 of the spindle to pass therethrough and to hold it in bearing engagement with the shoulder or end portion 18 of thebushing.

.It will be noted that with this construction the foot 6 is adapted for bearing engagementwith the end 18 of bushing 11 over the major portion of a circle extending from point 19 around to point 20. This is in decided contrast to any bearing made possible by use of an eccentric foot where the bearing surface is of necessity considerably less than a semi-circumference. By this means substantially the entire bearing surface of member 6 suitable manner.

is in bearing engagement with the retaining bushs ing 11 and due to the uniform distribution of the bearing forces it attains a longer life in use, consequent upon the uniform attrition or wearing down of the said member 6. The members 11 may be formed of any suitable material such as copper, brass, steel or the like, and may be dished in any suitable punching apparatus and the apertures 1'7 formed by a simple punching operation. These bushings may be readily inserted or removed from thebobbins.

Referring now to Figs. 4 and 5, the improved bushing 12 is similar in construction to the bushing 11 and is provided with an aperture 21 which is concentric with the apron or skirt 13. In addition, there is provided in the endthereof a trans-- verse slot 22 whichis situated at one side of the circularaperture and is adapted to permit the insertion of the retaining flange or foot 6 of the flier blocks. The edge of the bushing end may be forced downwardly as indicated at 24 to per mit the sliding of the block into position. This member has a central cut out portion 23 which defines one side ofthe aperture 21 of the bushing. When the block is in place, the member 6-is in bearing engagement with the bearing portion 18 jofflthe bushing overthe major portion of acircumference, thus providing a substantially even bearing surface over its entire extent, in a manner substantially similar to, that provided in bushing 11.

The member 12 may be formed in a manner similar to that used for member 11, slot 22 being readily cut out or punched out of the end at the same time as the central aperture 21, or the circular aperture may be first punched out and then the transverse slot 22 formed in any The improved bushings hereinabove described, in combination" with the novel flier blockcon- .struction, permit desirable economies both in tric foot 11181131381, of uniform diameter and mounted for rotation on a spindle, a bobbin on said spindle, and a removable bushing having an ovoid shaped aperture in the end of said bobbin and in looking engagement with said foot.

2. A flier assembly for spinning machines, includingin combination, a flier having a concentric foot member of uniform diameter and. mounted for rotation on a spindle, a bobbin on said spindle, and a bushing having a non-circular aperture in the end of .said bobbin in locking engagement with said foot.

3. A flier assembly for spinning machines, including in combination, a flier having a concentric foot member and mounted for rotation on a spindle, a bobbin on said spindlaand a bushing havingalaterally slotted central aperture in the end of said bobbin in locking engagement with said foot. I

4. A flier assembly for spinning machines, including in combination, a flier having a concentric foot member of uniform diameter and mounted for rotation on a spindle, a bobbin on said spindle and a bushing in the endof said bobbin having a circular aperture concentric with the axis of the bobbin and a slot at one side of said aperture, the bushing being in locking engagement with the foot. a

5. Afli cr assembly for spinning machines, including in combination, a flier having a concentric foot member of uniform diameter and mounted for rotation on a spindle, a bobbin on said spindle, and a bushing in the end of said bobbin, comprising a dished member having an eccentric non-circular aperture, the bushing being in locking engagement with the foot.

6. A flier assembly for spinning machines, ineluding in combination, a flier having a concentric foot member of uniform diameter and mounted for rotation on a spindle, a bobbin on said spindle, and a bushing in the end of said bobbin, comprising a dished member having a circular'end'and an oval shaped opening formed in said end, the major axis of said opening substantially coinciding with a diameter of the end, the bushing being in locking engagement with the foot.

7. A bobbin including a bushing adapted for insertion in the end thereof, comprising a dished member, a circular aperture in said bushing concentricwith the central axis of the bobbin and a slot formed at one side of said aperture.

MICHAEL J. McHALE.

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