US378210A - Rolls for rolling girder-rails - Google Patents

Description

4 Sheets-Sheen; 1.

(No Model.)

A. J. MOXHAM.

ROLLS FOR ROLLING GIRDER RAILS.

No. 378,210. Patented Feb. 21, 1888.

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(No Model.) I 4 Sheets-Sheet 2.

A. J. MOXHAM.

ROLLS FOR ROLLING GIBDER RAILS.

No. 378,210. Patented Feb. 21, 1888.

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A. J. MOXHAM.

ROLLS FOR ROLLING GIRDER RAILS.

No. 378,210. Patented Feb. 21, 1888.

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ROLLS FOR ROLLING GIRDER RAILS. 7 No. 378,210. Patented Feb. 21, 1888.

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ARTHUR J. MOXHAM, OF JOHNSTOWVN, PENNSYLVANIA.

ROLLS FOR ROLLING GIRDER -RAILS.

SPECIFICATION forming part of Letters Patent No. 378,210, dated February 21, 1888.

Application filed December 19, 1887. Serial No. 258,286. (No model.)

To all whom it may concern.-

Be it known that I, ARTHUR J. IVIOXHAM, of Johnstown, in the county of Oambria and State of Pennsylvania, have invented new and useful Rolls for the Rolling of Two Finished Forms of Gircler-Rails, which invention is fully set forth and illustrated in thefollowing specification and accompanying drawings.

The object of this invention is to roll two forms of girder-rail, each form finished for use, the one finished form to be converted into the. other when required.

The invention will first be described in de tail, and then particularly set forth in the claims.

In the accompanying drawings, Figure 1 illustrates in front elevation a set of roughing-rolls containing one flattening-pass, one edging-pass, and one dummy pass, in the order named, commencing at the ,left of the figure. Fig. 2 illustrates, also in front elevation, an other set of roughing-rolls, whose first two passes from the left are edging-passes and whose remaining pass is a dummy pass. Fig. 3 illustrates, also in front elevation, a set of finishing-rolls all of whose passes, save the final pass on the right of the figure, are edging-passes, said final pass being a flange or tram-curving pass, which may or may not be used, as occasion requires. Fig. 4 illustrates in end elevation a rail of the form as finished in the last pass but one of Fig. 3. Fig. 5 illustrates the same rail when the side flange of its head has been upturned after being put through the last pass in Fig. 3.

In said'figures the upper rolls are respectively indicated by the letter A and the lower rolls by the letter B, and the passes between the rolls are indicated by numbers from 1 to 12, inclusive. Pass No. l is a flattening-pass, pass No. 2 an edging pass, and pass No. 3 a dummy pass. Passes 4t and 5 are edging passes, and pass No. 6 is a dummy pass. Passes 7, S, 9, l0, and 11 are edging-passes, and pass 12 a flange or tram-curving pass, which latter pass may or may not be used, as hereinbefore stated, its purpose being to bend up the flange f of the rail previously rolled in pass No. 11. It will be observed that in the above-named dummy passes the bottoms or lower parts of said passes, instead of being made flat, are beveled or offset on one side, as shown at the points 11. By thus shaping said dummy passes the use of the dummy passes can be extended beyond the point at which the offset for the head portion is rolled in, and it so aids in the rolling by hastening the operation of reducing the metal to the desired finished form.

It will be observed that there are these dif ferences between the invention described in my application Serial No. 258,285, herewith filed, and the invention herein described: In said application a blank is rolled from which two forms of rail can be subsequently rolled from said same blank by special mechanism; but by the invention herein described the finished rail is rolled ready for use in the form as it leaves pass No. 11, and can then be either used in such form or put through pass No. 12, which turns up its flangef, changing its shape from that shown in Fig. 4 to that shown in Fig. 5, as already explained, and the rolls are essentially different in the shape and form of the dummy pass.

I do not limit myself to the exact number or distribution of passes shown, as the number of passes and their distribution into roughing and finishing passes is to a certain extent arbitrary, being influenced by the length and diameter of the rolls, a light train of rolls calling for more passes with lighter draft than a heavy roll-train. It is also evident that the rolls can, if desired, be made threehigh, instead of two-high, as shown.

Having thus fully described my said improvement as of my invention, I claim 1. Rolls for rolling girder-rails, provided with one or more dummy passes havinga bottom offset, as at p, substantially as and for the purposes set forth.

2. Rolls for rolling girder-rails, provided with passes substantially of the shape or form shown in the accompanying drawings, and

numbered from 1 to 12, inclusive, as and for the purposes set forth.

ARTHUR J. MOXHAM. Witnesses:

G. R. POWELL, G. M. JOHNSON.

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