US1549296A - Railway rail - Google Patents

Description

Aug. 11, 1925. 1,549,296

R. H. CLAPP RAILWAY RAIL Filed July 11, 1924 IN VEN TOR A TTORNEYS Patented Aug. 11, 1925.

UNITED. STATES PATENT OFFICE.

ROGER H. (JLAIIPP, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CLAUDE A. WITTER, 01E PHILADELPHIA, PENNSYLVANIA.

RAILWAY RAIL.

Application filed July 11, 1924. Serial No. 725,389.

This invention relates to railway rails and is especially useful in connection with rails for steam railroads.

One of the objects of my invention is the provision of a two-part rail, one part of which,the base,is practically a permanent member, and the other part of which, the head,is renewable.

The primary purpose of this construction is the reduction of the cost of maintenance over the present style of rails used. In the present rail, only about one-third of the head, or about 14% of the entire weight, is ever used up in regular service, the remaining 86% being used for relaying or scrap.

I am aware that many attempts have been made to provide a two-part rail but, in so faras I am aware, none of them have met with commercial employment for the reason that their structural characteristics were such as to introduce difliculties or objections which outweighed the advantages to be gained. Certain of the diificulties of this character will become manifest in connection with the description of my invention.

I propose to provide a two-part rail of a practical character such as will enable its use in the realization of the advantages incident to such a general construction.

Another object of the invention is to provide an improved two-part rail in which the head member is reversible as well as renewable. 7

Still another object of the invention is to provide a two-part rail in Which provision is made 'for contraction and expansion.

More specifically it is an object of my invention to provide a two-part rail, the parts of which may be simply manufactured. How the foregoing, together with such other objects as may hereinafter appear;

or are incident to my invention, are obtained is illustrated in the accompanying d w g n whi h the fig re is a pa lally sectional and partly isometric perspective view of a rail embodying my invention.

Referring now to the drawing, the reference character A designates the base rail which is of a construction such that it may be readily rolled. This base rail member can well be made of soft structural steel and is more or less permanent. It may well be attached to the ties by screws, the reason Why spikes are at present employed being that the rail, as a whole, must be readily removable. f

The base rail has a groove. 7 located in its upper face and extending longitudinally thereof, such groove being central of the rail. This groove is formed by the small flange 8 and the upstanding flange, knee The head rail member B is of T section,--

comprising the usual head 10 and a de ending flange 11 which is located centra of the head and extends longitudinally o the rail member. The head rail may be readily rolled. v

The depending flange 11 fits within the groove 7 and abuts against the upstanding flange 9 or column of the base rail.

The two flanges are provided with bolt holes through which the bolts 12 pass and in which they have a loose fit so that substantially the only function performed by suc bolts is to secure the flanges together, a of the weight being transmitted directly to the base rail member. The rail is preferably assembled with the column 9- on the out-' side so that this column receives the lateral thrusts, thetoe of the flange 11 being held in the groove.

The head rail, being of T construction, is capable of bein reversed as wear takes place, to which en I so locate the bolt holes in the respective members that they are the renewa le f a r will far more t an .com ensate for such increased cost. In the neig borhood of 30% of the rail can be used up before removal of the head rail member. Furthermore, the amount of metal and also the disposition o fthe metal, particularly in the base rail member, are such that the rail, considered as an entirety, is consider- 'ably more rigid than the present rail, which is an item of great importance and advantage for the reason that, owing to the rapid development of locomotive power, the increased tonnage, and also the increase in train speeds, the present rail has been found to be too elastic.

It will be noted that the column 9 terminates short of the head i. e'., there is no load transmitted by'the head to such column. If therewere any load transmitted by the Head to the column, the head would pound' out and elongate laterally.-

Among other advantages are that forms of splices now in use may be employed with curves, while the head rail may not be reversed, nevertheless it can be reversed which is of great advantage as the wear is excessive.

I claim: L. A railway rail comprising a base rail member having a groove .and an upstandin flange, a head rail member having a head and a depending flange the lower edge of which fits the groove and rests upon the base rail for the transmission of the load,

the upstanding flange being out of contactwith the head, bolt holes in the flanges dis posed so thehead rail member'may be reversed, and bolts for securing the flanges.

2. A railway rail comprising a base rail member having a groove and an upstanding flange, a head rail member having a head and a depending flange the lower edge of which fits the groove and rests upon the base rail for the transmission of the load, the upstanding flange being out otcontact with the head, bolt holes in the flanges dis posed so the-head rail member may be reversed, and bolts for securing the flanges certain of the holes being elongated to provide for expansion and contractlon.

3. A railway rail comprising a base rail member having a groove and an upstandin flange, a head rail member having a hea and a depending flange the lower edge of which fits the groove and rests u on the base rail for the transmission of t e load, the upstanding flange being out of contact with the head, bolts holes in the flanges disposed so the head rail member may be reversed, and bolts for securin the flanges,

the bolts having a loose fit or expansion.

4. A railway rail comprising a base rail member having a central groove and an upstanding flange to one side of the groove, a head, memberhaving a central depending flange adapted to fit in said groove and to transmit all of the weight to the .base rail, and means for securmg the flanges together.

In testimony whereof, I have hereunto signed my name.

a ROGER H. CLAPP.

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