US1152110A - Process of making spirally-wound rolls. - Google Patents

Description

C. S. LOCKWOOD.

PROCESS OF MAKING SPIRALLY WOUND ROLLS.

APPLICATION mu) NOV. 28. 1914.

' 1,152,110. Patented Aug. 31, 1915.

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CHARLES S. LOCK'WOOD, OF NEWARK, NEW JERSEY, ASSIGNOR TO'HYA'IT ROLLER BEARING COMPANY, OF HARRISON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PROCESS OF MAKING SPIRALLY-WOUND ROLLS.

Patented Aug. 31, 1915.

Application filed November 28, 1am. Serial N 0. 874,403.

To all whom it may concern Be it known that I, CHARLES S. Loonwoon, a citizen of the United States, residing at 289 Market street, Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Processes of Making SpirallylVound Rolls, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The present invention relates to an improved process for manufacturing a spirally wound roll with an integral collar upon one portion thereof, the process consisting primarily in first winding the strip into coils of substantially the diameter required for the collar, and second, swaging down the body of the roll to a suitable diameter, leaving the collar projecting beyond the said body.

In practice, a mandrel is fitted to the bore of the roll, which may be made cylindrical or tapering as desired, and the swaging dies may be shaped to swage down the body of the roll into tapering form for use in bearings where end-thrust is resisted;

To form an integral collar upon the roll, by the operation of swaging, thick coils are required, and when such coils are formed by winding a relatively thick strip upon a mandrel, the inner side of the strip is,contracted and the outer side extended, causing the strip to assume a shallow trough-shaped cross section which causes ridges along the edges of the strip upon the outer side of the roll, but this defect in the surface of the roll is entirely compensated by the swaging of the roll-body to reduce its diameter, and

by the final finishing of the same and the collar, by turning the surface in a turning lathe. Collared rolls may therefore be made by the present process, which have the clastic or spiral coils, and the desired accuracy of form and dimensions.

The invention will be understood by reference to the annexed drawing, in Which Figure 1 is a side view of a roll with relatively thick convol-utions having ridges along the edges thereof. Fig. 2 shows the same rollsomewhat diminished in diameter and increased in length by swaging. Fig. 3 is a diagram illustrating the winding of a a diagrammatic representation of a machine for swaging the rolls; Fig. 5 is an end View of the swaging dies; Fig. 6 is a side View of a tapering collared roll formed of spiral coils; Fig. 7 shows a cylindricalroll, from which such collared roll may be formed; Fig. 8 shows, upon a smaller scale, dies for reducing the body of such collared roll; and Fig. 9 represents such collared roll in section upon a mandrel, with a section of the dies used for swaging it.

In Fig. 3, the strip a is shown wound upon a mandrel b so small as to greatly extend the exterior of the strip and give it a concave form, thus producin ridges 0 upon the roll d (shown in Fig. l

The rolls may be swaged by the swaging dies 6 shown in Fig. 4, which are shaped to press upon opposite sides of the roll when the upper die is reciprocated by the ram A wedge g is provided beneath the lower die to adjust the distance of the dies from one another with a uniform stroke of the ram f, and feed-rolls hare shown applied to the roll 03 to propel it through the dies for merely finishing the surface of the roll. The same mechanism without the feed-rolls is used to form the collared rolls shown in Fig. 6.

Where an annular projection i is desired upon the roll, as in the tapering roll 03* shown in Fig. 6, a cylindrical roll 7' shown in Fig. 7 is first formed of the same diameter as the collar, and a neck or groove Z is then formed adjacent to the location of the collar, and the remainder of the cylindrical roll 9' may then be swaged down, as indicated by the roll 7' and dies 6 in Fig. 9, to form the body of the tapering roll.

Where a tapering body is desired, as

4 shown in Figs. 6 and 8, the swaging operation is facilitated by inserting a tapering a closer contact of the dies with the body of the roll, and this is especially desirable for exerting the final swaging action upon the metal, to give the body of the roll its final shfape and finish. b 4

The nal sha e 'ven the sWa 'n 0 eration may be su cient t b fit the dllg 'fgr use in some grade of bearings, but Where they are to be used in a high-grade bearing, the rolls are turned in a lathe to give the body and collar nearly the desired size, then hardened, and finally ground to the desired dimensions.

Having thus set forth the. nature of the of the roll to a smaller diameter, leaving the collar projecting beyond the body.

2. The process of making a spirally Wound roll with an integral collar, which consists in first winding the coils of the roll to substantially the diameter desired for the collar, second, necking the roll adjacent to the desired collar, third, fitting a mandrel to the bore of the roll, and finally swaging down the body of the roll upon such mandreLleaving the collar projecting beyond the said bod I1 1 testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

Witnesses:

I E. I. WILLIAMS,

M. E. JAHN.

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