US355780A - Process of making center-bearing girder-rails - Google Patents

Description

' PROCESS OF MAKING OENTER BEARING GIRDER 'RA ILS.

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W l T 888888 Y UNIT D STATES PATENT vOFFICE.

ARTHUR J. MOXHAM, OF JOHNSTOWN, PENNSYLVANIA.

PROCESS oF MAKING CENTER-BEARING GlRDER-RAILS.

SPECIFICATION forming part of Letters Patent No. 355,780fdated January 11, 1867.

Application filed September 16, 1886. Serial No. 213,670. (No model.)

To all whom it may cancer-17.

Be it known that I, ARTHUR J.-MOXHAM, of Johnsfown, in the county of Cambria and State of Pennsylvania, have invented a new and useful Process of Making Center-Bearing Girder Car-Rails, which invention is fully set forth and illustrated in the following specifi cation and accompanying drawings.

Theobject of this invention is to provide a ready means of manufacturing a girder-rail having a head the under part of which is recessed, as hereinafter described, and for which form of rail I now have an application for a patent pending, said application being filed herewith and numbered 213,67 3.

The process constituting this invention is hereinafter particularly described, and specifically set forth in the claim.

In the accompanying drawings, Figure 1 shows a portion of a rollpass containing a rolled blank of metal or'priniary form. Fig. 2 shows part of a roll-pass in which the blank shownin Fig. l is partially bent on either side \of its web part. Fig. 3 shows part of a rollpass in which said blank is further bent to the finished form desired, the head of which product is deliveredhaving interior recesses between it and the web of the rail. Fig. 4. shows part ofa pass which is adapted to similarly are shown as if the rolls were vertical, it is to be understood that such is not the case, each of the forms therein shown being operated upon edgewise by the rolls, as hereinafter ex- 5 plaiiied.

It will be noted by the dividing-lines of the passes m that Figs. 2 and 3 are rolled with the a web of the rail vertical. While itwould not be impossible to bend the upper portion of this form of rail into the desired shape of head by rolling the same on its side instead of vertically, it is considered preferable to roll vertically, as shown, as a .larger part of the active roll-surface can be brought to bear in course results generallyin sacrificing the exact shape of section wanted to the contingencies of manufacture.

In the process of manufacturing here shown the form or blank is designed of such shape and proportions as to be feasibly rolled by the ordinary process of rolling inthe first case, and by subsequent bending to give the desired finished shape in the second case, it being necessary in-the design of the form or blank to take into consideration the change of form that will be effected by the bending and to provide for such change.

It will be noted that the shapes of the passes are such that the process is that purely ofbending, not rolling, and the bending is effected without liability to distortion of the metal during the process.

Having thus fully described my said process, as of myinvention I claim- The process of making center-bearing girder car-rails,consisting,first,informingaT-shaped bar of metal, and then downwardly bending, the T-head of said bar, so as to leave a central bearing and two side trains recessed under said central portion, substantially as and for the purposes set forth..

ARTHUR J. MOXHAM.

\Vitnesses: v

NV. E. HooPEs, O. R. POWELL.

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