US1722720A - Railroad rail - Google Patents

Description

F. L. VOEGTLY RAILROAD RAIL July 30, 1929.

INVENTOR i (2/ Filed Feb. 28, 1929 Patented July 30, 1929.

trite stares -arr - 1 ime RAILROAD BAIL.

Application filed February 28, 1929. Serial No. 343,535.

My invention relates to railroad track rails and has for one of its objects the provision of a rail structure of such form that tilting thereof under side thrusts imposed by railwav rolling stock will be largely eliminated, thus reducing the tendency for the outer edge of the rail base to become 11nbedded in the cross ties when 1t is placed directly upon the ties or to avoid imbedment of the outer ends of tie or fish plates in the tie when such plates are placed beneath the rail.

Another object of my invention is to provide a rail having a base of such form that the tendency toward sliding thereof upon a tie plate, through imposition of side thrusts, will be overcome.

Still another ob ect of my invent on is to simplify and improve railway rail structures generally. 7

One form which my invention may take is shown in the accompanying drawing, wherein Figure 1 is a fragmentary inverted plan view of a rail formed accordin to my invention, and Fig. 2 1s a cross sectional View of the rail showing it in pos1t1on upon a cross tie. i

The rail is represented generally by the numeral 3 and rests upon a tie plate 4 which is in turn supported by a cross tie 5 n a well-known manner. Spikes 6 are driven through holes in the tie plate and serve to hold the rail firmly in position.

However, there is a tendency for rails to tilt in service through side thrusts of car wheels and locomotive wheels, and particularly to tilt outward, either on curves or on straightaway track, the outward thrust being more pronounced of course at curves in the track.

The head and the web of the rail may be of any well-known shape, but I form a plurality of longitudinal recesses upon the underside of the rail base, thus producing the ribs 7, 8, 9 and 10. The recess between the ribs 8 and 9 is directly beneath the web of the rail and is of greater width than the thickness of the webb, and embraces the point about which the ordinary plane bottom rail tends to tilt or rock.

The tilting action referred to becomes aggravated during continued use of the rail, until finally the outer edge of the rail base, if no tie plate is employed. or the outer end of the tie plate, will gradually become imbedded in the wooden tie 5, thus permitting the rail to lie in a displaced position and increasing the tendency for it tobe tilted still further, even by the imposition of vertical loads, since the usual vertical line of support through the web has been shifted.

Furthermore, the pressure of wheel flanges tends to slide the rail laterally upon the tie plate 4, against the resistance of the outer spike 6, thus aggravating the abnormal condition created by the tendency of the rail to tilt under wheel thrusts.

By relieving that portion of the rail between the ribs 8 and 9, the tendency of the rail to rock about its vertical center line is greatly reduced, since the,*tilting forces are resisted byt-he ribs 8 and 9, and also by the V ribs 7 and 10. The ribs are of such width that they will afford adequate vertical support for the rail and the grooves provide the necessary relief at various points which is required in some cases where there may be slight unevenness on the bottom of the rail bases or in the tie plate, which unevenness of course will in many cases result in the rocking movement of the rail, the outward thrust resultin from said rockingmovement tending to imbed the outer end of the tie plate 4 in the cross tie, and su zh rocking movement increasing as the rail becomes loosened upon its support, thus increasing the thrusts upon the outer portion of the tie plate.

The ribs 7, 8, 9 and 10 are formed with sharp corners, so that they will tend to bite into the tie plate upon imposition 0t load on the rail and impingement of wheel flanges thus resisting tendency of the rail to slide upon the tie plate.

Ordinarily, the ribs 7, 8, 9 and 10 will extend the full length of the rail, thus :tacilitating the shaping of the rail, and also rendering it unnecessary to accurately space the ties in order to insure that they will lie beneath the ribs.

I claim as my invention 1. A railro-ad traclr rail having a plurality of ribs uponv its underside, the said ribs being of rectangular form in cross section and extending longitudinally of the rail.

2. A railroad track. rail having ribs upon its underside, one rib lying adjacent to each edge of the rail base, and each rib being of rectangular form in cross section.

3. A railroad track rail having ribs upon its underside, one rib lying adjacent to each edge of the rail base, each rib being of rectangular form in cross section, and another rib of rectangular form intermediate the first-named ribs.

4. A railroad track rail having two pairs of longitudinallyextending ribs upon its underside, the innermost ribs of each pair being spaced apart a distance greater than 10 the thickness -of the Web of the rail, and the outermost ribs lying adjacent to the edges of the rail base and each being of rectangular form in cross section.

In testimony whereof I, the said FRANK 15" L. VOEGTLY, have hereunto set my hand.

FRANK L. VOEGTLY.

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