US2148940A - Reinforced crossing of lines - Google Patents

Description

Feb. 28, 1939. J. F. E. GRAND l REINFORCED CROSSINGl 0F LINES Filed June 1l, 1936 '20 on either side of this'transverse axis for forming Finally the two wing rails 4 and 5 enclose the 20 Patented Feb. 28, 1939 e 2,148,940

UNITED STATES raTlez-NT OFFICE LINE S Application June 11, 1936, Serial No.'84`,743 In France June 20, 1935 -2 Claims. (Cl. 246-468) Itis known-that in built up-crossings with base As-illustrated inthe drawing, the new crossing plate ordinarily usedon railroads, there is insuicomprises a rail I 'arranged in the longitudinal cientconnection between the-portion of the frog axis of `the crossing, forming a point at p and forming the point and the opposite part constiterminatingat p1 in its web and its base or flange,

5 tutedl by the extensionofv the rails or wing rails. the head of the rail kbeing dispensed with in that 5 It results therefromthat the vibrations, repeated portion. shocks, hammering when the vehicle wheels pass This rail I is enclosed by two counter-point over-thecrossing, cause a dislocation of the varirails 2- and 3, arranged one to the right, and the ous elements, the -wear of the running surfaces other to the left of the longitudinal axis of the ortreads-of-the rails, and-consequently, the rapid unit, and extending throughout the length of the 10 putting out of service of these crossings. Morelatter, each'being connected by both its ends to over, the distortions and displacements of the elethe track. The heads of these rails are removed ments of the crossing might causethe trains to in the central portion of the crossing, as will be run oif the rails. seen from Fig. 1. The heads of said rails are It willbe'reminded that ordinary built up crosscut according to oblique planes for forming faces 15 ings'withbase plate are composed of yfour rails asf which nt against the rail I. sembled together: a lpoint rail and a counter- The web and base o1' flange of these rails subpoint rail terminating before the transverse-axis sist at q, then the heads are again obliquely cut of the crossing,-and two wing rails each extending for forming the opposite parts of the tracks.

running surfaces or treadsv on the side opposite'to three central rails I, 2 and 3. They extend on the pOrit and Counter-'point ralsfan'd fOI Simply either side of the transverse axis .'r-x, but they forming guide guard rails 011 the Side 0f these do not compulsorily occupy-the entire length of point and counter-point rails. the Crossing,

The present .invention is substantially charac- Bent-portions and planed portions are provided 25 terized by the 'fact that the point of the crossing on Yeach of the rails, in Order that they Should is formed by a Fail Section constituting a fth tightly fit against each other as illustrated in Figs.

rail of the assembly,v enclosed by two counter- 1 2 and 3 of the drawing and for formin g the point rails extending throughout the length of the gaps necesary for the passage of the flanges of crossing and each connected by its two ends to the vehicle Wheels 30 the track. This fifth rail forms the point and the running surface or tread on one side of the These ve raus are assembled together m any transverse axis of the crossing, and on the other sultaple manner by nvets bolts' stay members side, it terminates in its web and a portion of its bushmg etc' base or aange, se that this nfth rail and the two on, Flg- 1 1t Wm be Seen that the FWO hues 0f a5 counter-point rails can be rendered rigid together runmng 0r tread elements are onstltuted-by and can form an absolutely rigid and undistort- Line MN-Portion of the counter-point 3 to the able unit. left of the transverse axis,

The crossing is completed by two Wing rails Point I, and portion of the counter- 40 which are located one to the right and the other point 2 placed to the right of the 40 to the left of the longitudinal axis of the assemtransverse axis. bly for enclosing the three preceding rails. Line RS-Portion of the counter-point 2 to the The various rails above mentioned are bent and left of the transverse axis, planed so as to tightly press against each other Point I, and portion of the counterand to exactly t against one another. point 3 to the right of the transverse 45 The invention is illustrated, by Way of example axis. onrgu gli ggolrllrr dra'wmg m Whlch' In the wing .rail 5, a certain length of the rail Fig. 2 is a longitudinal vertical section made head to, the mght and to .the left of the trains' along une H II of Fig 1` verse axis v.vs -a, completes, 1n the central portlon, 50

Fig 3 is an underside plan View the running surface or tread corresponding to the Figs, 4 to 7 are cross sections made respectively 1in@ MN- along lines IV-IV, V-V, VI-VI and VII- VII Likewise, in the wing rail 4, a certain length of of Fig. 1. the rail head, to the right and to the left of the Fig. 8 shows a modification. transverse axis, completes, in the central portion, 55

the running surface or tread corresponding to the line RS.

These arrangements render absolutely impossible any creeping movement of one of the rails relatively to the others. The Whole forms an absolutely rigid and undistortable system which considerably reduces the effects of the flexure stresses and of the shocks which usually tend to dislocate the apparatus. This results in a reduction of the wear of the running surfaces or treads and of the fish-plates, in a greater security against the risk of rupture of the elements, andin a longer life of the crossing.

The point I and the wing rails 4 and 5'Which are the elements the most liable to wear can be made of a metal harder than that of ordinary rails. As these three rails have relatively small lengths, the increase of price due to the use of a metal of better quality is not very considerable, whilst the life of the crossing is rendered much'longer.

The central rail I of the apparatus which is the main characteristic element of the present patent can be replaced by any member the shape and construction of which are different fro-rn those illustrated, for instance, by a forged or moulded member fulfilling the same function or improving its qualities.

- Fig. 8 illustrates a modiiication in which the counter-point rails are bent in the vicinity of the end of the point or nose o-f the crossing in order to immediately come in contact with the Wing rails. The main object of this arrangement is to prevent these latter rails from supporting any load.

The arrangements described above are of course given by way of example only, all the details of construction, shapes, materials and dimensions of this apparatus can be modified without departing thereby from the scope of the present invention.

I claim:

1. In a crossing, a rail section arranged in the axis of the crossing, planed portions in the head of the said rail section for forming the point of ther crossing, a first counterpoint rail parallel to the outer rails of the crossing extending Without interruption throughout the length of the crossing and bent according to the angle thereof, a planed portion in the head of said rail parallel to the axis of the crossing and bearing throughout its length against the unplaned portion of the head of the axial rail section, a second counterpoint rail symmetrical to the first counterpoint rail relatively to the axis of the crossing, a first wing rail bent according to the angle of the crossing and arranged externally along the rst counterpoint rail, a second wing rail symmetrical tothe first rail relatively to the axis of the crossing, an opening in each of the counterpoint rails dispensing withrthe head on the portion of the said rail extending between the portion bearing against the axial rail section and the portion bearing against the corresponding Wing rail, and means for rendering rigid the said four rails and the axial rail section.

2. In a crossing, a rail section arranged in the axis of the crossing, two planed portions in the head of the said rail section which are parallel to the outer rails of the crossing for forming the point, the said rail section extending beyond the point but only by its web and its fiange, a rst counterpoint rail parallel to the outer rails of the crossing extending without interruption throughout the length of the crossing and bent according to the angle thereof, a planed portion in the head of said rail parallel to the axis of the crossing and bearing throughout its length against the unplane portion of the head of the axial rail section, a second counterpoint rail symmetrical to the first counterpoint rail relatively to the axis of the crossing, a first wing rail bent according to the angle of the crossing and arranged externally along the first counterpoint rail, a second wing rail 4symmetrical to the first rail relatively to the axis of the crossing, an opening in each of the counterpoint rails dispensing with the head on the portion of the said rail extending between the portion bearing against the axial rail section and the portion bearing against the corresponding wing rail, and means for rendering rigid the said four rails and the axial rail section.

JEAN FRAN QOIS EUGNE GRAND.

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