US1202943A - Railway-crossing. - Google Patents

Description

O. H. WILLIAMSON.

RAILWAY cnossmeQ APPUCATION FILED DEC-16,!9I5.

Patented Oct. 31, 1916.

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OTTIS H. WILLIAMSON, 0F GOVANS, IVLFARYLAND.

RAILWAY-CROSSING.

Application filed December 18, 1915.

To all whom it may concern:

Be it known that I, OTTIs H. WILLIAMSON, a citizen of the United States, residing at Govans, in the county of Baltimore and State of Maryland, have invented certain new and useful Improvements in Railway- Crossings, of which the following is a specification.

This invention relates to railway crossings, and its object is to provide a crossing structure which will eliminate all noise, jolting and pounding of the car wheels as they pass over the crossing.

The object stated is attained by forming the tread portion of the rails, adjacent to the crossing, with a depression, so that the car wheels ride over the crossing free of the tread surface of the rails, and supported solely by their flanges.

In order that the invention may be better understood, reference is had to the accompanying drawing, in which Figure 1 is a plan view of the crossing; Fig. 2 is a side elevation thereof; Fig. 3 is a side elevation of a fragment of one of the crossing rails, partly in section, and Fig. i is a cross section of the rail shown in Fig. 3.

Referring specifically to the drawing, 5 denotes the intersecting rails of the crossing. The rails have a head 6 provided with a groove 7 as usual in which the flange 8 of the wheel 9 runs. This is the type of rail usually employed in street railways, for which latter the crossing has been more particularly designed.

Adjacent to the intersection of the rails 5, the tread surface thereof is formed with a depression which extends across the point of intersection of the rails, and lowers the tread surface here so that it is below the Specification of Letters Patent.

Patented 9st. 31, 1916.

Serial No. 67,144.

normal plane of said surface, as indicated at 10. This depressed portion of the tread surface is formed by inclines on opposite sides of the point of intersection, as clearly shown in Fig. 2, the inclines being downward toward said point, so that the tread surface is here below the normal plane of said surface.

By the depression 10 hereinbefore described, it will be evident that a car wheel passing over the crossing is supported entirely by its flange, the tread portion of the wheel being free of the tread surface of the rail, as shown in Figs. 3 and 4. This results in the wheel being given a continuous bearing surface or support with no gaps to pass over, the continuity of the groove in the rail head in which the wheel flange travels being uninterrupted. The wheel therefore passes smoothly over the crossing, without pounding, and all noise and jarring are eliminated.

I claim:

A railway crossing comprising intersecting rails having a tread surface and a wheelfiange groove, the tread surface of each rail being formed with inclines on both sides and adjacent the intersection of each crossing rail leaving a section of straight tread surface between each pair of crossing rails to form a support for the tread of the wheels between said rails, said inclines extending downwardly in the direction of the point of intersection of the rails and lying below the plane of the supporting tread portions of the rails.

In testimony whereof I affix my signature in presence of two witnesses.

HOWARD D. ADAMS, E. WALTON Benwmcron.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents, Washington, D. 0.

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