US1869138A - Rail joint - Google Patents

Description

' Ju ly 1932- J. F. E. FOREST ET AL RAIL- JOINT Filed June 19. 1951 INVEN was {I M 5* HTTORNEX Patented July 26, 1932 warren STATES PATENT QFFECE' JOSEPH FELIX EDOUARD FOREST, OF JOLIETTE, QUEBEC, AND ALZEARD FLORANT 'f' JOANISSE, OF HAWKESBURY, ONTARIO, CANADA RAIL JOINT Application filed June 19, 1931. Serial No; 545,412. r

The invention relates to rail joints, as described in the present specification and illustrated in the accompanying drawing that forms part of the same.

This invention consists essentially of the novel self-locking feature in a rail joint as pointed out in the claims for novelty, following a description containing an explanation in detail of the preferred construction.

The objects of the invention are to facilitate the laying of tracks by eliminating the use of plates and bolts; to construct a joint that will bequiet when trains pass over it; to provide a rail joint in which wear will be negligible to such an extent that periodical replacement of rails will be necessary at the 7 minimum, and, generally to reduce the costs of production of special joints and increase the efliclency as well as facilitating the 1nstallation.

;, en on the line 3-3 Figure 2. a

Figure 4c 1S a view of the underside of the rail showingthe locking member.

Fi ure 5 is a detail view lllustratln the a l u a a method of assembhng the JOlIlt.

And Figure 6 is a cross sectional View showing a modified form of the invention.

Like numerals of reference indicate corresponding parts in the various figures.

Referring to the drawing, two rails ends and 16 of the meeting rails which are fastened to ties 17 and 18 by. the spikes 19, are connected together at the oblique undercut and overcut ends forming the split 20.

The rail end 15 is formed with a tapered boss 21 fitting into a tapered cavity 22 in the rail end 16 thereby forming the supporting surfaces 23 and 24: in the head of the rail end 16 for the aligning tongue 25 from the centre of the head of the rail end 16, lower down in the web of the rail end 15 the squared boss 26 registers with the square cavity 27 and aligns the web in the base 28 of the rail 16, the tongue 29 projects into the recess 30 and aligns the base. This forms a boss 31 of irregular shape between the cavities 27 and 30 extending into therail 15 from the rail end-16. The key 32 extends from thebase of the rail end 15 and is recessed in the base of the rail end 16 from the underside, said recess having the transverse slots 33 and re-. ceiving the cross piece 34.

To assemble the track, the ends of the rails are elevated as shown in Figure-5. The key 32is placed in the recess inthe base of the rail end 15 and the rails are lowered to the ground. Asthey arelowered the rail ends swing together, the tapered boss21 slides into the tapered cavity 22 and the bosses 26 and 29 fit into their corresponding cavities 27 and 30. v Itis of'course necessary to allow suf-. ficient clearance for expansion and c'ontraction dueto changesintemperature. I The'res ult ofthe assembly of th rail ends is that th'e'surfaces abutting one another insure a three to four point bearing and in no instance is there a perpendicular line ofcon; tact orza continuous-oblique line, consequently the distribution of the load is so spread longitudinally as to forbid theupper end of the split to communicate with'the lower end except through intermediate contact points forming actual bearings.

In operation, the oint will'normally lie flat, the wheels of the rolling stock in passing v depress the rail slightly. causing the boss 21 to press on the supporting surface 24 in turn depressingthe end of the rail 16. /Vhen the train approaches on the other rail 16 the surface 23 will bear on the boss 21 and draw down the end of the rail 15. It is of course to be understood that thismovement will be very slight and will in fact occur only'when wear and expansion separate the ends of the rails and bring this self aligning feature intoplay While we have shown our oint in use with railroad tracks it'inay also be used to join The load bearing on the upper surface of I the girder will keep the joint'closed at all times, and removal of the load will allow disconnecting off the joint if required.

What We claim is i 1. In rail joints, comprising a pair of rai ends abutting one another, an oblique groove in one rail end and a tongue on the other rail end, cavities in said tongue, bosses formed in said groove to correspond with the cavities in said tongue and adapted to register With one another When the rall ends are together,

and a locking member on one rail end engaging a recess in the other rail end for locking 7 the rails together. i

2. In rail joints, comprising a pair of rail ends abutting one another and forming an oblique split between the rails, a groove in Vonerail, irregular shaped bosses formed in said groove, a tongue on the other rail end and having cavities corresponding With the bosses in said groove and adapted to register With one another to form bearing surfaces from rail to rail, and means for locking said rail ends together. l

3. In rail joints, comprising-a pair of rail ends abutting one another and forming an oblique split between the rails, a groove 'in one rail end, irregular shaped bosses formed in said groove, a tongue on the other rail end and having cavities corresponding with the bosses in said groove and adapted to register -With one another to form bearing surfaces from rail to rail, and a locking member on one rail end engaging a recess in the other.

rail end for locking the railstogether. Signed at Montreal, Canada, this 13th da of April 1931.

ALZEARD FLORANT JOANISS E.

JOSEPH FELIX snonAanroar-sr.

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