US1426443A - Flier - Google Patents

Description

m m. W Mw. o m 2 47 m J,

W. 0. ALDRICH.

' FUER. APPLICATION FILED AUG.26, 1920. 1,426,443-

III @f IIIIIIIIIIHIIII llllllll ff ArmnnEvs Specification of Letters Patent.`

WILLIAM O. ALnEIcIr, or WHITINSVILLE,MASSACHUSETTS, AssIGNOE To WHITIN MACHINE WORKS, OE WHITINSVILLE, MASSACHUSETTS, A OOEPOEATTON forl MASSACHUSETTS. Y f f FLIER.`

Patented A'ag'-aa, i922;

`Application fnea Augustus, 1.912,0.v serialy No. 406,165.

T o all whom #may concern: 1

Be it known that LVILLIAM O. ALDRIOH, United States citizen, residing in 7Whitinsville, Worcester County, State of Massachusetts, have invented the following described 'improvements in Fliers.

My invention relates to the art of making fliers of the kind used on the spindles Of rovingframes and which comprise a central hub structure and two legs depending therefrom without other support, `and has-partic-A ular reference to the cost of manufacture ofl this class of fliers. The invention resides in the essential idea of uniting the separately formed leg and hub members by meanspof a sheet metal crown or shoulder piece pressed or formed toa special shape and welded or otherwise secured to the legs and hub so as to produce a built-up flier equivalent to the onepiece hand-forged article now commonly used. Commerical manufacture of fliers has been heretofore confined process which, though laborious and eX# pensive, has been generally conceded to be the only satisfactory method of obtaining that combination of rigidity vand permanency of balance that is demanded by 'practical service. Various vproposals to forge only the crown and hub parts out of a singlel piece of stock, thereafter afliXing the legs to it, have to the hand-forged f been found in practice to be quite as eX- verally pensive as to forge thewhole flier from a single piece and so far as l am aware, vari'- ous proposals to-form the fiier wholly from Sheet metal have failed in practiceeither because of the inherent weakness of such fliers,

or the expensel and complication of their manufacture. v

According to myl invention eachof the component me bers of the flier is designed and adapted vfor economic manufacture', the crown piece in particular being specially formed to thatend and'adapted for rapid and accurate lassembly with the other members so that the, completed structure can be practically produced at a lowV cost 'and genless than half of the cost of forged fiers.

In the drawings-V Fig. l is a side elevation form'of this invention; u

Fig. 2', an elevation of the partly vcoinpleted hollow leg, showing the yarn slot;

Fig. 3, the completed leg; Fig. 4, an axial section of the hub;

f the preferred the' well known taper-socketto receive 5, a cross-section thereof; I, l Fig. 6, the crown blank; Y

Figs. 7 8. and- 9, side,lsection and plan p y views of the first stamping of the crown y Figs.. 10 and 1'1, plan and longitudinal section viewsof the completed crown;

`Fig. 12, a section of thea/flier through .the plane ofthe legs; and.k y Fig. 13 an end elevation of the crown.

The leg 1 is a solid rod, pr ferably ofloval cross-section, and is produce Vby simply cutting Off a length kof bar stock. The opposite leg 2 is formed by rOl-l-ing'up a` '[iatdsheet-vl metal blank of substantially the'shapeshown '4 by the dotted lines invFig. 2*, and producing thereof a tapered hollowleg with -an'open crevice S betweenthe meet-ingl yedges of the blank, which crevice formsthe-yarn slot.A

The hollow leg is then twisted so asto dis-` p tort the'yarn slot and give it the curved shape shown in'Fig.l 3.- lt will be understood 'p that the yarn slot SJis for the introduction of the yarn into the leg andl requires to be non-rectilinear inorder topreventI the escape of the yarn under the centrifugal effect. y As thus Shaped, the hollow leg'with the curved yarn slot is supplied with a pair'of nibs or .Slo i projections "4; tosupport and retain the lband v 5 ofthe yarn guide and presser. These nib's can be bossed up from' the leg blankif de sired, or st'ruckup, as tabs therefromin any suitable way, i as economical to make'` them as separate parts and solder or spot-weld them to the `leg as' shown in Fig. l. Alll'theseoperations on the hollow .leg are simple and readilypervformed by the aidof simple machinery. The

but llind'fit practical and quite presser comprises the band 5, the counterf weightllimb, and the usual armand 7, ybeing quite the same as the` common presser on the ,forged` iier.

The hub 8 is firs preferably throughout,v and is, therefore an yautomatic machine/job, that is to sayyit is adapted to be produced at low cost in one of.,

n types-` v of automatic turret lathes', such machines being capable oftak- 'ing in he blank ering the hubs in substantially finished yform latthe other end. The hub comprises a. tubu- .3 lar body provided externally with a flangeiS near its upper;v end and internally with a thev tapered tip of the spindle, and it is also cross bored atl() to receive a cross-pin. The flange `9, being init made of circular section,

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stock at one end and deliv-k llO 2 1 ,assess tially circular, is slabbed of as indicated at 11 in Fig. 5, and a yarn outlet 12 is formed above the flange. These several operations on the hub member are manifestly low cost operations and largely automatic.

The remaining part of the flier is the crown or shoulder piece 13 which unites the two legs'to the hub and according to this invention can also be made with no greater diticulty than the other parts. In its preferred form and as herein shown, it is the product of simple stamping and punching operations capable of performance with rapidity and at low cost, and has such shape in respect to its vertical dimensions as to possess well defined characteristics of girder construction with attendant strength and:

lightness of weight and such vertical dimensions afford an attachment area for the legs and hub which is ample for maintaining them in their accurate relative positions, even prior to their lfinal and permanent attachment, thereby" assisting` the attachment process. The flat blank 111- of Fig. 6 is first stamped into the cupped and bow-shaped form shown in Figs. 7, 8 and 9 in which, as will be seen in these figures, it has a substantially fiat central top wall 15 merging into two downwardly sloping top walls or arms 16 and 17 and Hat, substantially vertical sidewalls 18, and rounded end walls 19 and 2O.4 Its cross-section is thatvof an in-` verted U, being wider at the middle-and diminishing in width toward the ends, which however are slightly widened to form interior leg sockets as shown more clearly in the plan view of Fig. 9. This shape of crown piece is reached by a single stamping. It will be noted that the crown piece is unsymmetricahin that the arm 16 (Fig. 7) is slightly longer than the other.

The crown stamping is punched with a center hole 21 in its top wall 15 to receive the hub and with a hole 22 at the end of its top wall 16 and this latter wall is provided with a longitudinal depression or yarn groove or channel 23 leading from near the center to the hole 22 as shown in Figs. 10 and 11. Two opposite cross-pin holes-24C are also punched in its side walls 18. These several punchings can be done in one Voperation if desired, it being understood that the first rough stamping of Figs. 7-9 can be finally shaped and smoothed up in a set of finishing dies either before or after the punching step just describedor coincidently with it. y

1n the assembly of the foregoing parts the solid leg 1 is pushed into the socket enlargement formedv by the end wall 19 and finds a substantial surface contact therein for attachment purposes. The hollow leg 2 is pushed into the similar socket formed by the end wall 20 of the other arml and when so placed its interior passage registers with the hole 22 and its shouldered edge 25 abuts againstythe lower side of the depressed yarn groove 23 as indicated in Fig. 12; at the same time this leg, being somewhat resilient because of its yarn slot tits snugly in its socket with a very considerable surface contact with the interior of the socket. In these positions the legs are easily secured to the crown by welding or brazing, and preferably by electrically spot-welding them to the side and end walls which results in a practically rigid connection between the regs, maintaining them accurately in their desired relation and serving also to stiiien the hollow leg` against any change of shape.

rlhe hub 8 is introduced into the central opening so that its iiange 9 abuts against the underside of the central top wall 15 and its` slabbed edges 11 Jit against the adjacent parts of the side walls'13. 1n this position it is welded to the crown as in the case of the legs, and further secured thereto by a crossv pin 26 which is driven and riveted into the registering holes 10 and 241 so that it traverses the upper end of the taper socket so as to serve also as a key for the end slot in the spindle tip, the flier being of course freely removable from the spindle. The flier is finished by slotting the end wall 20 as indicated at 2'? in Fig. 13 in continuation of the yarn slot 3, and then the whole structure is lapped and polished and when the presser has been applied is ready for use.

it will be understood that the yarn is threaded as usual through the open upper end of the hub and the lateral yarn outlet 12 and then laid in the yarn groove 23 and passed sideways through the yarn slot 3 and 27 so that it may run through the hollow leg to the guide eye on thefpresser. The yarn groove 23 is for the purpose of guiding the yarn to the hollow leg and leading it over but not in contact with the edge 25 thereof which, being a cut edge, is not easily smoothed because of its location, and for the same reason the' said edge 25 is shouldered down below .the top of the leg, as indicated by the shape of the leg blank in Fig. 2. The yarn groove also lends further'stifi'ness to the crown. inasmuch as the hollow leg is fixed tothe longer arm of the crown, its 'axis is somewhat farther vfrom the axis of the hub'than the solid leg,

a condition which is found desirable for a proper rotary balance of the structure and avoids increasing the mass of the solid leg, and this particular relation is assured by the method of manufacture above described because the arm length of the crown is absolutely controlled by the shape of the dies in which it is made and is unaffected by any subsequent step of the process so that all the fliers produced in the same set of dies are exactly identical in respect to dimensions and therefore require little or no filing or subsequent change to make the balance perfect.

The open-bottomed-and bow-shaped type of crown stamping having the cross-section of an inverted U as above described isfound to be the best in practice, but the essential advantage and economy of that form may ralso be approximated by other crown members stamped, rolled or otherwise built of sheet metal and having the characteristics of a girder in cross-section as above eX- plained, and it will be understood that various modifications, changes, substitutions for and additionsto the structure shown in the drawings may also be employed without departure from this invention as set forth in the following claims.

Claimsl. A flier of the kind described, comprising opposite, separately-formed legs, a crown formed of sheet metal welded to the legs and a separately made hub welded to the crown. v n

2. A flier comprising a sheet metal stamping constituting a crown with a girder crosssection and two legs, one of which is hollow, rigidly fixed by their ends to the ends of the crown, the other ends of the legs being unsupported, and a separately made hub secured to the crown and adapted to seat on aspindle tip. s

3. A flier of the kind described comprising opposite, separately-formedflegs, a sheet metal stamping of inverted U cross-section constituting a crown, adapted to receive the legs at its ends and being rigidly fixed thereto and a separately made hub secured to the crown.

4. A flier comprising acrownformed from sheet metal andv having a yarn slot at one end thereof, a separately formed, hollow leg-having a yarn slot secured to the said slotted end of the crown and having `its interior passage opening through the crown, va solidv leg secured to the other en d ofthe crown and a hubsecured in a central perforation in said sheet metal crown.

5. A flier comprising ,a crown stamped from sheet metal, a solid leg secured to one end of such stamping, a hollow leg having a yarn slot secured to the other end thereof and having itsinterior passagegopening upwardly through the stamping, a hub secured in a central perforation in said stamping and extending above and belowy the same and a yarn outlet in the hub above the crown.

6. A flier comprising a crown formed from sheet metal with a socket at one end secured to a leg and a. socket at the other end vsecured to a hollow leg having a yarn slot, said crown having a yarn-conducting groove or channel on'its upper side leading to the interior of said hollow leg.

` 7 A flier comprising a sheet metal crown and a hollow leg secured in a socket at one end thereof, a portion ofthe crown being extended over the edge of the-leg and adapted to conduct the' yarn to the interior thereof.

8. In an assembled flier a sheet lmetal crown piece having an inwardly depressed groove serving asthe' arm gulde.

In testimony whereof, I have signedthis .Y

specification.

WILLIAM o. ALDRici-i.

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