US 2928623 A
Description (OCR text may contain errors)
March l5, 1960v F. MAYHEw 2,928,623
METAL REEL AND THE LIKE Filed DSO. 17. 1957 2 Sheets-Sheet 1 ATTORNEYS March 15, 1960 F. MAYHEw METAL REEL AND THE LIKE 2 Sheets-Sheet 2 Filed Dec. 17. 1957 naa \/7. INVENTOR F RANK MAYHEW BY m, fwn @Aw/f ATTORNEYS 2,928,623 'AMETALREELANDTHELIKE Y v Frank Mayhew, Charlotte, N.C. Application December 17, 1957, Serial No. 703,396
' `4 claims.V A(c1. 24x-77.4)
The present invention relatesA to reels, pulleys, wheels and the like. More particularly the invention pertains to -the formation of the flanges of large metal reels such 'as the type on which cables are wound and their connections to a drum.
Metal flanges may be formed by cutting a circular piece from a large rectangular sheet of metal and subsequently shaping the cut part by corrugating it for the purpose of providing a reinforced flange. However, there is a considerable waste of metal in this procedure. It has also been proposed to form reel flanges by corrugating a rectangular Sheet of metal and then by expanding one edge the sheet is curved in its own plane. In this latter method the corrugations are more or less flattened adjacent the expanded edge, thus reducing the strength of that portion of the flange most subject to deformation by heavy impact in shipment.
It is one of the objects of this invention so to shape flanges for metal reels that the outer periphery of the flange is maintained at maximum strength in the finished product.
It is also an object of the invention to produce a corrugated reel flange from a single rectangular sheet of metal having the upper and lower surfaces of the principal corrugations in parallel relation.
Other objects will be apparent from the following description of the invention when taken with the accompanying drawings in which Fig. 1 is an end elevation of a preferred embodiment of a reel made in accordance with the invention;
Fig. 2 is a side elevation of the reel shown in Fig. 1;
Fig. 3 is a partial section taken on line 3-3 of Fig. 2;
Fig. 4 is a top plan view of a partially formed metal sheet illustrating one step of the method employed in carrying out the invention;
Fig. 5 is an end view of the bent sheet shown in Fig. 4;
Fig. 6 is a partial elevation of a circular reel flange after it has been curved as seen from the center of the flange;
Fig. 7 is a partial elevation of the circular flange when viewed toward its outer periphery;
Fig. 8 is a sectional view taken on line 8 8 of Fig. l; and
Fig. 9 is a sectional view taken on line 9-9 of Fig. 1.
In the drawings, it will be seen that the reel comprises a cylindrical drum 10 having secured thereto flanges 11. The drum is provided with longitudinal ribs v12 and its longitudinal ends are held by interlocking return bent fingers 13 commonly referred to as a stove-pipe joint. The ribs 12 do not extend to the ends of the drum so that a smooth marginal portion 14 is provided at each end of the drum to cooperate with axial flanges 15 on the inner rings of reel flanges 11.
It is to be noted that the drum 10 fits over the axial flanges 15 of the reel flanges and that the drum is disposed radially outwardly of these axial flanges. In this United States Patent() ice in two parallel planes, after which, or in a simultaneous operation, the metal in one-or both of theplanes and between the verticall portions of the bent sheet is crimped Vin the form of a fold. The metal adjacent one side edge of the sheet is folded to a greater degree than is the metal adjacent the opposite side edge of the sheet. The Acorrugations 17 in Fig. 5 are shown as being rectangular,
but'they may be otherwise bent to provide strength to the Yreel flange. The folds 18 are formed by crimping the metal in the plane 17 between corrugations 17 along the lines a, a and b, it being noted that lines a, a diverge from a point along one side edge midway between the corrugations so that the raised fold corresponding to the line b is inclined to the plane of the sheet 16. This results in a greater gathering or contraction of the metal adjacent side I of the sheet with substantially no contraction of the metal along side O of the metal sheet. Hence ,when the folds in plane 17' have been completed, the sheet will assume a curved form and in the present embodiment the resultant product will be a corrugated circular member. The inner circumference of this member represents the length of the outer circumference minus that portion of the metal gathered by the crimping or folding operation. The member has a series of radial corrugations 17 of uniform height from the inner to the outer sides of the flange and an intermediate series of radial folds 18 which have substantial vertical height at the inner circumference of the reel flange tapering toward the outer periphery where the fold is negligible and merges into the sheet at this edge.
The corrugations and folds have been referred to as having height, but this term is relative, it being under'- stood that it designates the distance between the displaced planes 17, 17. As shown in the drawings, the height of the folds and that of the corrugations may be substantially equal, but the height of the folds may beA less than that of the corrugations. As previously stated,
the folds are shown as being disposed in a single plane, but, depending on the dimensions of certain types of reels, it may be desirable to crimp the metal lying in both of the spaced planes. It is, therefore, intended that the invention be applicable to the latter form of reel flange.V
After the corrugated and folded sheet has had its ends connected by welding or a similar operation, inner and outer rings are secured thereto either mechanically or by welding. The outer ring 19 is channel shaped in section, while the inner ring comprises two curved angle members 20, 21 having their axial flanges 15 welded to each other. As stated hereinbefore, these axial flanges cooperate with the ends of drum 10 when placed thereon. The composite reel flanges are secured to each other and held firmly on the drum by tie-rods 22 cooperating with cross members 23, the latter being welded to the corrugations of the reel flange.
The advantage of providing corrugations of uniform height will be appreciated when it is understood that the reels are shipped in knocked-down condition and separate from the drums. Were the flanges conical or frustoconical, as would be the case whereV corrugations are tapered, they would be difficult to stack in superposed relation. The drum is provided with a stove-pipe joint so that its ends may be readily connected when they reach their destination.A In` shipment a number of them necessary to replace the complete reel, it being understood that a damaged component may be replaced by` a similar elemen-t of the reel.` -V K While a preferred form of the inventiorrhas been -shown and described, it is contemplated that? such modificationsas -fall withinthe scope of the claims may be employed. What is claimed is:
i 1.A A circular metallic reel ilangehaving a plurality of radial portions displaced axially and a crimped fold` be- `tween'pairs of adjacent displaced portions, each of said folds having substantial height adjacent the inner `circumference of said ange, the height of each fold adjacent the'outer periphery of thefiangebeing negligible.
2. A circular metallic reel flange having aplurality of radial portions displaced axially and a crimped Yfold 'betweenpairs of adjacent displaced portions,`v each of 2,928,628 j A. i
said folds having substantial height adjacent the inner circumference of saidange, said foldtapering downwardly in an outwardly radial direction toward the outer periphery of said ange.
3. A reel ange as defined in claim 1 in which said displaced portions are ofjuniform height.
`4. A circular metallic reel ange having a plurality of' radial portions displacedaxally and a crimpedfold between pairs of adjacent displaced portions, each of said folds having substantial height adjacent the, inner circumference of saidflange, the height ofjeach fold adjacent the outer periphery of the ange being negligible, said displaced portions being of uniform height; an inner ringsecured to'said ange at itsinner circumference, and
an outer ring secured to said flange at itsouter periphery.`
`References Cited in the tile of this patent UNITED `STATES PATENTS 2,152,523 McGuire 1 Mar. 28,` 1939