US2509360A

US2509360A - Plate for roller-skate wheels and the like

Info

Publication number: US2509360A
Application number: US65597A
Authority: US
Inventors: James E Marshall
Original assignee: Olin Industries Inc
Current assignee: Olin Industries Inc
Priority date: 1948-12-16
Filing date: 1948-12-16
Publication date: 1950-05-30
Anticipated expiration: 1967-05-30

Description

E K I L m T D N. A m m m M y m L R R O F E m M P May U Filed c. 16. 1948 Patented May 30, 1950 PLATE Foa ROLLER-SKATE WHEELS AND THE LIKE James E. Marshall, New Haven, Conn., assignor to New Haven, Conn., a cor- (llin Industries, Inc., poration of Delaware Application December 16, i948, Serial No. 65,597

7 Claims.

The present invention relates to improvements in plates for roller-skate wheels and the like and relates more particularly to plates of the character referred to which are formed of sheet metal and which, therefore, may be readily electroplated with nickel, copper, chromium, or other desired finishing metals.

It may first be explained that the usual procedure for producing sheet-metal plates of the character referred to is to first stamp them from sheet metal, which process occasions an appreciable amount of burrs which must be removed. Subsequently to being formed, the said plates or disks are usually placed in a tumbling-barrel together with a charge of suitable deburring materials such, for instance, as steel balls to remove the burrs referred to and to polish the plates.

. The thoroughly deburred and polished plates are usually electroplated by being tumbled in a plating solution of the desired metal while subjected to a current-flow, and following the plating it is customary to dry and polish the now-plated plates by again tumbling them in substantiallydry sawdust or the like.

All of the operations above referred to cause many of the identical plates to nest together and thus fail to respond to the various treatments, since the back of one plate and the front of another plate would be thus shielded. This nesting has resulted in a large number of rejects and hence has raised the cost of production.

One of the main objects of this invention is to provide sheet-metal plates of the character referred to which, though identical in size and shape, will not nest together to cause rejects as described, except under the most unusual circumstances.

With the above and other objects in view, as will appear to those skilled in the art from the present disclosure, this invention includes all features in the said disclosure which are novel over the prior art.

In the accompanying drawings, in which certain modes of carrying out the present invention are shown for illustrative purposes:

Fig. 1 is an elevational view of a plate embodying the present invention and looking toward the .outer face thereof;

. Fig. 2 is a view similar to Fig. 1 but looking toward the inner face of the plate;

1 Fig. 3 is a diametrical sectional View thereof taken on the line 3--3 of Fig. l

Fig. 4 is a view similar to Fig. 2 but showing two of the plates in engagement with each other;

Fig. 5 is a broken view of a roller-skate wheel shown partly in edge elevation and partly in transverse section and also showing a plate embodying the present invention associated therewith; and

Fig. 6 is a face view similar to Fig. 1 but illustrating another form of the present invention.

Showing of Figs. 1 to 5 inclusive The plate illustrated in Figs. 1 to 5 inclusive is of dished or concavo-convex form and is for purposes of description generally designated by the reference character ID. The said plate may be conveniently struck up from sheet steel, brass, aluminum or the like, and has the central portion of its outer face shaped to provide a hub-recess I I in turn having a, central opening I 2 extending therethrough from face to face.

Adjacent its outer periphery the plate II] is struck up to provide three (more or less) arcuate ribs or embossments respectively designated by the reference characters I3, I4 and I5 and projecting from its outer or convex face. The formation of the ribs or embossments I3, I14 and I5 results in each instance in creating in the back or concave face a similar number of arcuate recesses each designated by the reference character I6.

Intervening between the arcuate ribs I4 and I5 is a gap or plain area I I and in turn intervening between the rib I5 and the rib I3 is a gap or plain area I8. The arcuate ribs I3 and I4 are in turn spaced from each other in a circumferential direction by a gap or plain area I9.

Each of the arcuate ribs or embossments I3, I4 and I5 above described may respectively have different circumferential extents as may also the gaps l'l, I8 and I9, such, for instance, as in- Example 1 Example 2 Example 3 Degrees Degrees Degrees The results of the present invention may also be achieved by having the respective lengths of the ribs I3, I4 and I substantially identical and the respective gaps I'I, I8 and I9 differed in their respective lengths in a circumferential direction, as is indicated in Example 2 in the foregoing table.

The basic non-nesting advantages of the present invention may also be achieved by varying the respective lengths in a circumferential direction of thearcuate ribs I3, I4 and I5 or their equivalent, and at the same time maintaining the gaps II, I8 and I9 of substantially identical circumferential extents as is indicated under the Example 3 in the foregoing table.

As explained in the preamble hereto, a large number of plates of the character illustrated are customarily tumbled simultaneously in a tumbling-barrel together with a suitable material such as steel balls for effecting the removal of burrs and producing the desired degree of cleaning or polishing. During this tumbling process and with plates of ordinary construction the said plates are apt to tightly nest together with the result that only one face of each of two nested plates will receive the necessary treatment. The same nesting defects of ordinary plates also tend to nest-during the plating operation-'and'during-the subsequent drying operation.

By means of the arcuate ribs I3, I4 and I5 and the gaps IT, I8 and I9 having difierential extents in the manner generally indicated .in the Examples 1, to 3 above, it is not possible for the two plates of the type illustrated to tightly nest together since the ribs and gaps of one given plate will not fit'or mate with the similar features of an identical plate except when they are identically oriented. This identical orientation is most unlikely since the matter of one or two degrees difierence in orientation would serve to effectively hold the two such disks or plates apart. Thus the chances of any two plates of identical form nesting together are so remote as to be negligible from a manufacturing standpoint.

In Fig. 5 one of the plates I0 is illustrated as assembled with a roller-skate Wheel which is generally designated by the reference character and which in itself requires no detailed description herein other than possibly to note that the said wheel is adapted to receive an axle 2I which extends through a plate like I0 indicated in the said Fig. 5.

The showing of Fig; 6

In Fig. 6 is shown a plate or disk generally designated by the reference character 22 and corresponding to the plate Ill before described save that instead of being provided with three embossments and a similar number of 'gaps,'the plate 22 i struck up to provide four arcuate ribs or embossments -23, 25, 25 and '26 and four gaps respectively designated by the reference char- '

acters

21, 28, 29 and 30. V

In'Fig. 6 the extent in the circumferential db rection of the gaps 2'1, 28, 29 and 30 are respectively indicated by the angles A, B, C and D while the similar extents of the arcuate'ribs or embossments are respectively designated by the angles E, F,'G and H.

To secure the advantageous results of the present invention, the extent of the embossments '23, 24, 2-5 and 26 may be substantially identical While'the gaps A,B,'C and D maybe progressively increased in length all as indicated in Example 4 of the following table:

Example 4 Example 5 Example 6 Degrees Degrees Degrees Instead of varying the extent of the gaps 21 to '31! inclusive and maintaining constant the extent of the

embossments

23, 24, 25 and 26 as in Example 4, all of the said gaps may be made substantially identical while the said embossments may :be'zcaused to differ from each other in length all as indicated under the heading Example 5;

Rsum

In all of. the forms of the invention herein set forth, any two or more identical plates cannot nest together tightly save in the exceptional event that they .are precisely similarly oriented with respect to each other. This hazard is so remote, as has been found by .practice, as not 12 be an. appreciable factor in manufacturing cost.

Furthermore, it will be noted that by means .of the. present invention the visual symmetry of the pattern ofalternating em'bo'ssments andg aps issnbsltanti'ally unaffected, since the slight variations required in carrying out the. present invention will not be apparent except to a person of unusual eyesight and Jud ement.

The invention maybe carried 'outin other specific ways than those herein set forth Without departing from the spirit and essential character istics. of the invention, and the present embodiments. are, therefore, to be considered "in all respects as illustrative and not restrictive, and all changes coming within thej'meaning andjequivalency range of the, appended claims are intended to be embraced therein.

I claim;

1. As a new article of manufacture, a "sheetmetalpliate offthe character referred to',:a1hdhav- "ing a plurality, of embossm'ents projecting from one of its faces and which emb'ossmentsj are spaced from "each otherfin a circumferential direaction by a plurality of gaps; theface ofthe pl'a'te opposite that from which the said emboss merits 'pr'oj ec'tj having indentations substantially corresponding to "the said embo'ssments; and the length of a given one of the said gaps between the said ,embossments tin a circumferential-direction differing "from another of the "said, gaps to minimizefthe likelihood of a plurality of such plates tightly nesting 'togeth'er during a finishing operation. 1

As anew article of manufacturea concaveconvex "sheet-metal plate of the character referred to, and having a plurality of-embossmen'ts projecting. from its convex face and whichem bossments are *spaced from each other in a circumferential. direction by aplurality-'oi gapsy the concave "face of the plate having "indentations substantially corresponding to the said-embo's'smerits; and the leng'thof the gaps'betw'een the said embossments in'a circumferential direction differing from another of the said gaps to minimize the likelihood of a plurality of such plates tightly nesting together during a finishing operation.

3. As a new article of manufacture, a sheetmetal plate of the character referred to, and having a plurality of embossments projecting from one of its faces and which embossments are spaced from each other in a circumferential direction by a plurality of gaps; the face of the plate opposite that from which the said embossments project having indentations substantially corresponding to the said embossments; and the length of the said embossments in a circumferential direction differing from another of the said embossments to minimize the likelihood of a plurality of such plates tightly nesting together during a finishing operation.

4. As a new article of manufacture, a concaveconvex sheet-metal plate of the character referred to, and having a plurality of embossments projecting from its convex face and which embossments are spaced from each other in a circumferential direction by a plurality of gaps; the concave face of the plate having indentations substantially corresponding to the said embossments; and the length of the said embossments in a circumferential direction differing from another of the said embossments to minimize the likelihood of a plurality of such plates tightly nesting together during a finishing operation.

5. As a new article of manufacture, a sheetmetal plate of the character referred to, and having on one of its faces an annular series of antinesting features comprising a set of embossed portions and a set of gap portions respectively intervening in a circumferential direction between the said embossed portions; the opposite face of the said plate from the said embossed portions having indentations substantially corresponding to the said embossed portions; the length in a circumferential direction of a given one of the portions of one set thereof differing from another of the same set to minimize the likelihood of a plurality of such plates tightly nesting together during a finishing operation.

6. As a new article of manufacture, a concaveconvex sheet-metal plate of the character referred to, and having an annular series of antinesting features comprising a set of embossed portions projecting from the convex face and a set of gapped portions respectively intervening in a circumferential direction between the said embossed portions; the concave face of the said plate having indentations substantially corresponding to the said embossed portions; the length in a circumferential direction of a given one of the portions of one set thereof differing from another of the same set to minimize the likelihood of a plurality of such plates tightly nesting together during a finishing operation.

7. As a new article of manufacture, a sheetmetal plate of the character referred to, and having on one of its faces an annular series of antinesting features comprising a set of embossed portions in the form of arcuate ribs and a set of gap portions respectively intervening in a circumferential direction between the said embossed portions; the other face of the said plate from the said embossed portions having indentations substantially corresponding to the said embossed arcuate ribs; the respective lengths in a circumferential direction of a given one of the portions of one set thereof differing from another of the same set to minimize the likelihood of a plurality of such plates tightly nesting together during a finishing operation.

JAMES E. MARSHALL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,125,229 Webster Jan. 19, 1915 1,790,423 Hooks l- Jan. 27, 1931 2,034,948 Knapp Mar. 24, 1936 2,136,137 Kellogg Nov. 8, 1938 2,145,083 Dynes Jan. 24, 1939