US470261A - Charles l - Google Patents

Description

lNrrn STATES CHARLES L. SHELDON, OF AUBURN, NEV YORK.

AXLE.

SPECIFICATION forming part of Letters Patent No. 470,261, dated March 8, 1892.

Application iiled January 9, 1892. Serial No. 417,530. l (No model.)

To all whom it may concern:

Be it known that I, CHARLES L. SHELDON, a citizen of the United States, residing at Auburn, in the county of Cayuga and State of New York, have invented certain new and useful Improvements in Axles, of which the following is a specification.

My invention relates to axles for vehicles; and it consists, iirst, of an axle or axle-blank formed of a continuous bar and rounded at the lower edges for parts or the whole of its length, and, secondly, in the means of forniing such axles or axle-blanks, fully set forth hereinafter, and illustrated in the accompanying drawings, in which'- Figure l isa perspective view of an axle bar or blank, showing my improvement, one end of the bar being cut away to illustrate the cross-section. Fig. 2 is a section on the line 2 2, Fig. 1, enlarged. Fig. 3 is a perspective view illustrating my invention as applied to a bar of uniform dimensions. Fig. 4. is a sectional view illustrating a pair of rolling-dies for forming the bar. Fig. 5 is a sectional View illustrating a pair of `pressing-dies for forming the bar.

The bar from which the axle or axle-blau is to be made may be of any suitable form. Thus it may be a straight bar of uniform dimensions in cross section-for instance, a

seven-eighths-inch bar-or it may be a bar that has previously been reduced in width in the center and spread. In any case, however, the bar must be of such length as to form a continuous solid axlein one piece and with end portions that are formed or may be formed into the ordinary conical journals and intermediate portions which are upset in any suitable manner or otherwise vformed so as to make the ordinary collars. In cases where it is desiredto reduce and spread the bar toward the center this reduction and spreading may be effected in the operations required to round the edges.

In the construction shown in Fig. 1 the lower edges of a bar that has been formed into an axle-blank are indented or rounded at intervals, so as to form the spots and intermediate rectangular portions y, having the cross-sectional form indicated in the enlarged section, Fig. 2, and adapted to receive the clips. In the construction shown in Fig. 3

the axle Orblank is of uniform dimensions in cross-section throughout its length between the collars 2 2 and is indented or chamfered at intervals to form'spots and intermediate rectangular portions y. Whatever may be the general form and dimensions of the bar itself, the axle or axle-blank as formed consists of a continuous piece having the jour- Y nals, the collars, and the intermediate portion integral throughout and free from welds, so as to preserve the original strength of the bar.

In rounding the edges at intervals to form the spots upon thebar I prefer to make use of dies D D', which may be revolving dies, as illustrated in Fig. 4., or pressing-dies, as illustrated in Fig. 5, although other means may be employed. In either case the dies have suitable grooves or faces to receive between them the bar that is to be operated upon, and one of the grooves in one of the dies is provided with projections 3 or is rounded at the corner, so that as the bar is submitted to pressure between the dies the edges at one side of the bar will be rounded at intervals to form the spots leaving the intermediate rectangular portion y.

When revolving or rocking dies are employed, the projections 3 are in one of the grooves of 011e of the rolls, and, if desired, the said grooves may be so formed that when a flat bar is introduced between the rolls and passed between them by the rotation or rocking of the rolls the bar will be flattened and shaped as may be required to make an axle of any desired form and construct-ion and proportions.

In case it is desired to form the axle or axleblank with the lower edges rounded throughout their length, or to leave square portions e only adjacent to the shoulders, the grooves of the dies are correspondingly formed. Whether the axle or axle-blank has the lower edges rounded for a part or the whole of the length a much more symmetrical form and finished appearance is secured.

Without limiting myself to the precise construction or form or proportion of axle shown or to the specific devices for forming the saine or rounding the edges, I claim as my invention- 1. An axlebar or blank consisting of a continuous bar of metal spread toward the cen- IOO ter and with the lower edges rounded for a part or the Whole of theirlength, substantially as described.

2. An axle bar or blank consisting of a continuous bar of metal having journals and collars spread at the center and provided at the lower edges with a series of indentations or chamfers w, substantially as set forth.

3. The Withindescribed improvement in the manufacture of axles, the same consisting in subjecting a continuous bar to the action of dies, one or more of which has a series of projections 3 arranged to indent or chamfer opposite edges of the bar at one side to form spots or recesses cc, separated byintermediate rectangular portions y, and then upsetting

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