US2429293A - Method of making rollers - Google Patents

Description

21, 1947. PECK ETAL 2,429,293

METHOD OF MAKING ROLLERS Filed June so, 1945,

Ills--2 Its--5 INVENTORS CECIL C.PECK and BY 7 NELSON E.BURDICK miwjmk /9 ATTORNEYS 5 Patented Oct. 21, 1947 UNITED STATES PATENT OFFICE 2,429,293

METHOD OF MAKHK GI- R'QIEJZERS Gecil. C. Peckand' Nelson E. Burdick, Cleveland,

Ohio, assignorsto Parsons. Engineering. Corporation, Cleveland; hio,.a.corporation-0f Ohio Application June 30, 1943, Serial No. 492,813

4 Claims. I

The present improvements, relating as indi cated to rollers, have more particular regard to the construction of metallic rollers such as a e employed, for example, as the core in rubber roll ers of the type used in clothes Wringers, although such roller is equally adaptable for employment as such in other fields of use, as for example, in a; gravity conveyor system On principal object of the inventionis to pro-- vide a method of making a metallic roller of composite structure, i. e'., assembled out of separate parts, which will nevertheless substantially equal in strength and rigidity a roller turned. out of solid metal such as has heretofore been used in wringer rollers. A further object is to so fashion the parts which enter into the construction. of the roller as to permit ready assembly thereoi'with a minimum amount of manipulation and wastage of material To the accomplishment of the foregoing and related ends, said. invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims, the annexed drawing and the following description setting. forth. in detail certain means and one mode of. carrying out the invention, such disclosed. means and mode illustrating, however, but one of various ways in which the principle of the-invention: may be used.

In said annexed drawing:

Fig. 1 illustrates partly in broken side elevation and partly in axial section one construction of roller embodying the present improvements;

Fig. 2 is a View corresponding to the left hand portion of Fig. 1, but illustrating a modification in construction;

Fig. 3 is a side elevation, with parts broken away, of one end of the roller, showing a detail thereof, whether of the form illustrated in Fig. 11 or Fig.2; 7 v

Fig. 4 illustrates more or lessdiagrammatically one stepin: the manufacture of the roller; and

Fig. 5 similarly illustrates another step in such manufacture.

The body I of the roller, whether of the form illustrated in Fig. 1 or Fig. 2, consists of a section of cylindrical metal tubing of the proper length. Such tubing may be either welded or seamless and its wall thickness will be of such selected gauge, having regard to its diametrical and longitudinal dimensions and to the metal composing the same as will provide the requisite strength for the intended service.

Associated with the respective ends of such body I are end pieces comprising a spindle 2 and 2 head. 3. These end pieces in the case ofthe'. construction illustrated in Fig. 1 are solid, being conveniently forged cold out of finished round stock; of the same diameter as the spindle. The

heads 3 of the end pieces are provided with a circumferential groove I, and as best shown in Fig. theperipheral portion of such head lyin on the spi-ndle'side of groove l is knurled or otherwise provided with longitudinal serrations 5, the outer portions of these serrations extending radially slightly beyond the un-knurled or smooth, cylindrical; portion. of the head.

In the modification illustrated in Fig. 2, the end pieces instead of thus being formed from a forging or otherwise fashioned: out of solid, metal, comprises a separate spindle part 6 which has a reduced. end I'. The latter is then tightly fitted into the central opening in an apertured disk 8 whichzconstitutes the equivalent of head 3 in the first described form, such end I being thereupon upset so asato firmly secure the stem: and head together.

The first step in the assembly of the parts just described into the complete roller is illustrated in Fig. 4. As there shown, a suitable abutment i0 is provided witha circular recess. II- adapted to receive: the spindle of one end portion with the head. thereof resting against the outer face of the abutment. Aligned with such recess H and normally spaced from abutment H a distance slightly greater than the length of the tubular body I of the roller, plus the aggregate lengths of the spindles of the two end portions, is a reciprocable plunger I-2 that is provided with a similar circular recess t3- adapted to receive the spindle of the second end portion with the head thereof resting against the outer face of the plunger. Said plunger t2 may be hydraulically or otherwise operated; so that; particularly on its forward movement,- i. e.,"towar.d' abutment I0, considerable pressure may be exerted. In operating the mechjust described the spindles of two end portions of. a. roller are respectively inserted in recesses H and I3, the latter having a depth, as

shown-greater than such spindles and a-diameter which while snugly fitting such spindles will permit the ready insertion and removal of the parts in question therefrom. Thereupon the tubular body I of the roller is brought into alignment with the respective inner ends of the heads of the two end portions thus mounted, and plunger I2 is advanced so as to force the parts together, as illustrated in Fig. 4. The respective ends of the tube, which as shown fit closely over the smooth inner peripheral portions of the heads, may be readily forced over such portions but upon engaging the knurled outer portions thereof the serrations on the latter will actually out into the inner wall of the tube ends so as to firmly interlock the latter with the heads.

The second and remaining operation, illustrated in Fig. 5, consists in beading inwardly as by means of beading rolls 14, the portion of the wall of the tube adjacent each end which overlies the circumferential groove in the corresponding head 3 or 8 as the case may be. The result of this operation, as shown in Figs. 1, 2 and 3, is not only to interlock firmly such tube ends with the heads of the spindle-bearing end-portions against relative axial movement, but also still more firmly force together the extremities of the tube and I pieces permits of a Very close mechanical fitting of such parts together, we have found that by placing in the groove prior to such beading operation a thin layer or coating of a plastic rubber or like compound the juncture may be quite completely and permanentlysealed to the passage even of air. i

From the foregoing description it will'be seen that our improved construction provides a roller of unusual rigidity and strength with the employment of a minimum amount of metal; there is furthermore very little wastage involved in the fabrication of the component parts; and the resulting roller is of relatively light weight so as to be admirably adapted for use as a core in a wringer roller or composition rollers such as are used in the inking mechanism of printing presses and other similar uses. The same advantages of course accrue where the roller is used directly as such, as for example in gravity conveyor systems and the like.

Other modes of applying the principle of our invention may be employed instead of the one explained, change being made as regards the product and method herein disclosed, provided the step or steps stated by any of the following claims or the equivalent of such stated step or steps be employed.

We therefore particularly point out and distinctly claim as our invention:

1. In the manufacture of hollow, metal rollers, the steps which include mounting in axial alignment 2. spindle-bearing end-piece in each of two relatively movable supports with the spindles of such end-pieces inserted in and the headsthereof abutting such supports, interposing a tubular, cylindrical body between" and inflalignme'nt with such heads in retractedposition of said supports, and then moving said supports towards each other until the endsof said bodyare'forbed over such heads into contact with said supports, whereby both end-pieces are simultaneouslysecured in proper position in such body, and finally compression-rolling and compacting the ends of the tubular body; I

2. In the manufacture of hollow, metal rollers, the steps which include mounting in axial alignment a circumferentially grooved spindle-bearing end-piece in each of two relatively movable supports with the spindles of such end-pieces inserted in and the heads thereof abutting such supports, interposing a tubular, cylindrical body between and in alignment with such heads in retracted position of said supports, then moving said. supports towards each other until the ends of said body are forced over such heads into contact with said supports, whereby both end-pieces are simultaneously secured in proper position in such body, and rolling and circumferentially grooving and interlocking said body with the heads.

3. In the manufacture of hollow, metal rollers, the steps which include mounting in axial alignment a spindle-bearing end-piece in each of two relatively movable supports with the spindles of such end-pieces inserted in and the heads thereof abutting such supports, such heads each having a knurled peripheral portion, interposing a tubular, cylindrical body between and in alignment with such heads in retracted position of said supports, and then moving said supports towards each other until the ends of said body are forced over such heads into contact with said supports, whereby both end-pieces are simultaneously secured in proper position in such body, and indenting the knurled portion of the heads into the tubular body, and finally compression-rolling and compacting the ends of the tubular body.

4. In the manufacture of hollow, metal rollers, the steps which include mounting in axial alignment a circumferentially grooved spindle-bearing end-piece in each of two relatively movable supports with the spindles of such end-pieces inserted in and the heads thereof abutting such supports, interposihg a thin layer of sealing composition on said heads and placing a tubular, cylindrical body between and in alignment with such heads in retracted position of said supports, then moving said supports towards each other until the ends of said body are forced over such heads into contact with said supports, whereby both end-pieces are simultaneously secured in proper position in such body, and rolling and circumferentially grooving and interlocking said body and respective heads.

CECIL C. PECK. NELSON E. BURDICK.

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

UNITED STATES PATENTS Burgess Oct. 3,

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