US1880439A - Spool - Google Patents

Description

Oct 4, 1932 E. F. HATHAWAY i-:T AL 1,880,439

SPOOL Filed April 10, 1931 INVENToR; 'f BY WI 'e160 -M adi/@fromm Patented Oct. 4, 1932 UNITED STATES PATENT OFFICE EDGAR F. HATHAWAY, F WELLFSLEY. AND WALTER BIXBY, 0F BOSTON, MASSACHUSETTS SPOOI Application led April 10,

This invention relates to spools of a type adapted to be used for revolubly supporting the yarn, cloth, or other material and 1s 1ntended to produce a construction of great strength and durability which 1s suiiciently simple in construction to be manufactured at a reasonably low cost'.

Spools with metallic heads have been used to a large extent in mills, but as heretofore made have been subject to much damage from rough handling and tossing about, which results in so bending or deforming the spool head that it soon becomes unsuited for use and must either be discarded or sent to the l5 repair shop, which, involves considerable loss of service as well as substantial expense for repairs.

The present invention has been devised for the purpose of overcoming these troubles by providing a novel construction of spool that is not subject Ato objectionable deformation under usual conditions of handlingfand use and which, generally speaking, comprises a longitudinal barrel provided with sheet metal heads made of steel or other metal that is sufficiently soft to admit of portions of the head being drawn or pressed into shapes that provide appropriate attachlng or other flanges to meet assembling or other requirements, combined with reenforcing plates or discs of hard steel united with the soft metal head .in a manner that will prevent any seriousfdeformation of the head, since the plate of hard steel`will by its union with the soft metal head prevent serious deformation ordinarily resulting from the blows and the pressure to which the spool may be subjected in service and in handling.

In the accompanying drawing are illustrated two slightly different forms embodying the principles of this invention, in which Fig. lis a side elevation of a complete spool with its middle broken out to show interior construction and with one end thereof shown in central cross section.

Fig. 2 is an end view of the spool shown in Fig. 1.

Fig. 3 is a detail view showing in end elevation one form of barrel construction.

1931. Serial No. 529,146.

Fig. 4 is a similar view showing a modified form of barrel construction.

Fig. 5 is a similar view of still further modification of the barrel construction.

Fig. 6 is a detail view in cross section of 55 one end of the spool showing a modified construction of end head.

In the practice of this invention according to the form illustrated in Fig. 1, the barrel l is in the form of a cylindrical tube of a diameter to receive the attaching flanges of the end heads.

The end head in this case comprises a disc 3, whose central area is drawn or pressed into an annular cylindrical iiange 3a adapted to 65 form telescopic engagement with the end of the tubular barrel 1. The outer edge or periphery of the disc 3 is pressed outward to forma peripheral flange 3b.

In order to properly draw either of these 7o flanges, the end heads must be made of relatively soft metal and are commonly made of mild or soft steel. While this construction affords an excellent construction to meet the requirements of certain types of spools by providing a substantial attaching flange which may be soldered, welded, or otherwise securely fastened to the end of the barrel, nevertheless such spools are very` liable to injury by deformation and bending due to rough handling as they are thrown about or dropped in the mill where they are used.

To prevent such objectionable deformation, which frequently leads to the discarding of the spool or sending it to the repair shop, we provide a supplemental orreenforcing plate or disc 4 that is made of hard steel. While a hard steel plate could not be drawn in the form required for the spool head, nevertheless it can be placed face to face against a the soft metal disc 3 of the spool head and may be spot welded thereto at intervals, as indicated at 10 and 11, so that the non-bending, or non-deformable, hard metal disc is so intimately united with the easily bent, deformable soft metal disc that it sustains the latter against the impacts and stresses which plrdinarily result in deformation of the spool ead.

The structure may be further strengthened 10o by au exterior disc 5 which would ordinarily be made of mild steel, but which does not require sharp enough bending to prevent the use of a reasonably hard steel for this purpose. Preferably, this disc is formed with an annular dish or concavo-convex area, as shown at 5, intermediate of the center and the periphery. This bowed or arched portion 5 is arranged to form an annular line of contact with the hard disc 4, while it is centrally perforated to fit around a tubular truss or tie member 6, which passes from end to end of the spool and affords a bearing member for revolubly supporting the spool.

This tubular truss member 6 snugl engages a central aperture in the hardene disc 4, which forms a surrounding engagement and support therewith, and the outwardly projecting ends 6a can be readily united integrally with the 'exterior reenforcing member 5 by arc welding the outwardly projecting end which can be done since when the arc welding current passes through the contacting parts the axially projecting end 6a is sufficiently fused to turn up against the outside face of the disc 5, as shown in Fig. 1.

In practice where the exterior reenforcing disc is used, the head will be assembled before being connected with the barrel and the spot welding at the points 10 will also be effected to give a substantially stiff rigid and ordinarily undeformable head, whose inwardly projecting flange 3a can be telescoped with the hollow end of the barrel and be soldered or spot welded thereto. After thus uniting the end heads with the barrel, the tie rod or truss 6 may be inserted With its ends projecting slightly beyond the outer members of the composite heads and the projecting end portion spot welded against the outside face of the exterior reenforcing member.

This simple and easily assembled construction provides a structure of great rigidity, durability and strength which ordinary rough usage will not injure or put out of shape. y

The barrel may be a continuous integral one piece tube, as shown in Fig, 1, or it may be made of an appropriate blank of flat sheet 2O that is bent into cylindrical form with interlocking flanges at 20 for holding the meeting edges of the sheet together. rAnother form is shown in Fig. 4 in which two semicylindrical plates 21 are brought together outside the attaching flanges 8 of the spool heads with their edges abutting and are then welded to the flanges. An alternate form to this would be a single sheet bent into cylindricalL form, as shown at 22, into which the annular flanges 3 of the heads are telescoped and to which the subtending portions of the barrel are welded.

In cases where for any reason it may not be desired to use the tubular truss rod 6, the eX- terior reenforeing member 7, as shown in Fig.

6, is provided with an inturned annular flange forming a short tubular bearing fitted snugly inside the central aperture in the hard steel plate 4. When the parts are thus assembled the welding operation secures them rigidly together so that the headbecomesthenasingle unit capable of insertion and attachment into the hollow ends of the barrel.

In practice these heads possess so much greater durability that the slight additional cost involved in their construction over the earlier type of metallic head effects a Very substantial economy, while at the same time the advantages of a very rigid spool head are obtained.

j What we claim is:

l. A spool embracing in its construction, a longitudinal barrel, end heads therefor of relatively soft metal whose central areas are pressed out laterally to form annular attaching flanges adapted to form telescopic engagement with the adjacent end of the barrel to which they are securely fastened, and a reenforcing disc of hard steel arranged face to face against said end heads and integrally united therewith whereby integral attaching flanges are provided for securing the head to the barrel while the head is sustained against deformation under the impacts and stresses of Service.

2. A spool embracing in its construction, a longitudinal barrel, an end head of relatively soft metal whose central area is pressed out laterally to form an annular attaching flange having telescopic engagement with the end portion of the barrel to which the flange is securely fastened, the head being provided with an interior bearing member for revolubly supporting it, and a disc of hard steel integrally united with the face of the head and centrally apertured to form an encircling engagement with said bearing member thereby sustaining said bearing member against displacement and affording a non-deformtlble;1 support for the main portion of the end 3. A spool embracing in its construction, a longitudinal barrel, a composite end head therefor comprising two side by side discs of sheet ymetal integrally united with each other, one-of saiddiscs being of soft metal provided with an integral inwardly pressed annular attaching flange having telescopic engagement with the hollow end portion of the barrel into which it is inserted and securely fastened, the other disc comprising a plate of hard steel whose union with the soft metal disc sustains the latter against permanent distortion.

4. A spool head embracing in its construction, a soft sheet metal disc provided with integral means for securing it firmly to the end of a spool barrel, and a hardsheet metal disc pressed against the face of said soft metal dise and integrally united therewith whereby the head is provided with integral attaching means and is prevented from deformation under the impacts and stresses of service.

5. An end head for a spool embracing in its construction, a soft sheet metal disc formed with an integral attaching ange for securing it to a barrel, a hard steel disc intcgraliy united therewith to prevent its deformation, and an exterior reenforcing disc with a concavo-convex contour intermediate of its periphery and its center and, integrally united with the adjacent discs to provide a rigid structure that is unyielding under service conditions.

In witness whereof, we have subscribed the above specification.

EDGAR F. HATHAWAY. VALTER BIXBY.

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