US1459140A - Track structure - Google Patents

Description

L.. P. CHICOBNE TRACK STRUCTURE Filed Jan. 9, 1922 Fingx. N

mt v"` y Patented J une 19, i923.

nai-rae 'stares :rar

Entornos.

` LOUIS i. cHIcoiNE, OFVAUDREUIL, QUEBEQciaNADA.

TRACK STRUCTURE. i

Application .filed January 9, 1922; Serial No. 528,112l

.To all w/Lom it may concern.'

Beit kno-wn that I, Louis P. CiiicoiNr.,

a resident of the town of Vaudreuil, Province of Quebec, Dominion of Canada, a subject of the King of Great Britainhave invented certain new and useful Improvements in Track Structures; and I do hereby declarethat the following is a full, clear, and exact description th-ereof.

.My .invention relates to track structure vfor railroads and the like and has for its vobject topiovide a structure of this type which will prevent longitudinaly creeping of therail; which will provide a cushion seat for the rail upon. each of its supporting,

cross/ties and thereby prolong the lifeof the rail particularly when-subjected to heavy traflic; which will entirely veliminate or at least inutile lthe ring or rattle of the tie-y plate usuallyproduced by trame; and which will elevate the* rail above the ballast of the roadfbed and thereby facilitate drainage and track workv generally.

Briefly summarized the invention come prises a rail and tie-plate having interlockn ing surfacesand cushioning means interposed between thetieplate and cross-tie,

the underside of 'the tie-plate being con'-r structed to accommodate theI cushioning means and prevent' displacement relativelyv to the tie-plate.

For full comprehension, however, of my invention reference must be had to the accompanying drawings in which similar reference characters indicate the same parts and wherein:

Figure l is a fragmentary perspective view of a track structure containing my invention Figure 2 is a plan view partly in section of a rail constructed according to my inverition;

Figure 3 is a plan view of a tie-plate constructed according to my invention;

Figure 4 is a transverse sectional view of the rail, tie plate, cushioning means and cross-tie;

Figure 5 is a plan view of the underside of the tiel-plate with the cushioning' means applied thereto; and

Figures 6 and 7 are detail sectional views illustrating modifications of the tie-plate and cushioning means.

Referring to the accompanying drawings which illustrate the preferred embodiment the supporting cross-tie is indicated at 2, the tie-plate at 6, the rail at 4 with base flanges at yand the cushioning .means which i* is linterposed, between the tie and tiefplate The top of the tie-plate presents Va flat rail seat 7 which-isflanked by shoulders 8 and 9. These shoulders .extend ythe full .width F of the vplate and-Aare spaced apart a distance slightly greaterthan the width of the rail base to receive the saine between them with their vertical `faces bearing against theside edges of ther base anges,the rail and tieplatebeing secured in such relative positions upon the tie by the usual spikes (indicated in dotted lines). which are vdriven .through the holes l2 intothe tie. l Heretofore the longitudinal creeping of the rails in service has caused the railroads considerable trouble andy expense andalthough many devices have` been put into service fevv'have proved successful. It is, therefore, one object of the present invention toprovide simpleand eiiicient meansembo'died in the rail andtie plate which .will prevent this -creeping without adding materiallyto thecost of the same` and without necessitating the use of extraneousl rail-anchoring or anticieeping devices. j T o this endthe side .edges kof the base lianges and -t-lie portionsof the shoulders 8 and 9 contacting therewithjare curved in;- wardly and outwardly relatively f to the length of the rail to lpresent sinuousor'un'.- dulating surfaces having rises 13 and depressions or concavities 14, the rises on the flanges snugly fitting the concavities on the shoulders and vice versa so that thevrail is locked against longitudinal movement in either direction.

The length of the undulations, that is to say, the distance froml lthe crest of one rise rail-anchoring or anti-creeping to the crest of the adjoining rise should be such that each: tie-plate may be placed in interlocking position with the rail without requiring an adjusting-movement of the tieplate of more than one and one-half inches.

' In view of the many devices in use for various purposes which are designed to fit a rail base of standard width it is important in the present invention that a constant width be maintained throughout the length of the rail in order that those devices which it is desired to use in conjunction with the present invention may be used with the same facility as if applied to the standard rail with straight base anges.

Toy this 'end the undulations on one side of the-rail are in staggered relation with those on the other side7 that is to saythe concavities o-n one side are in transverse alignment with the rises on the othery side (see Figures Q) so that a uniform measurement is secured throughout the rail length.

Another feature ofthe invention is the seat provided for the rail which 'not only aclts as a cushion-'in ydissipatingthe weight offthetrafc thereon but also eliminates the rattle of the tie-plate whichv has proved one 'of the: bes-etting diilioulties in a great 'many tie-'plates heretofore in` use. l

:This improved rail 'seat is obtained'by increasing thethiokness of the tie-plateand inserting a creosoted woodenblock 25v therebetween andthe tie.; 'In order to prevent .relative displacement between'the tie plate and vblock tlvieunderside of the former is recessed as at 26 'and the block-shaped to snugly fit the same. The depth, shape `and arrangement of the recesses'may be varied to meet requirements. For `instance for.v

light traflio the tie-plate need only be provided with a middle recess and a comparatively light block positioned `withiny the sa1ne,'ast indicated in Figure 6, while for heavier traffic the bloelrmay be made the kfull size of the plate and the'latter recessed as indicated in Figure 7.

'ln order to cause the tie-plate to grip the block the sides of the recesses are` curved orf-otherwise made irregular as a`t127. L

T he increase in elevation of the rail above the kballast produced by such aseat facilitates both drainage and track worslrfgener- I a'llyi. `F or linstance in the removal of a'tie from'v beneath the rail, digging iseliminated 'by iirstremoving the tie-plate, the .space thereby provided enabling "the p tie to be pried'up and pulled/out.

j two witnesses.

Whatl claim is as follows:

l. In a railway road bed the combination with a tie, a tie plate mounted in fixed position upon the tie anda rail supported upon the tie plate, Vthe side edges of the base flanges of the rail presenting undulating Asurfaces and the tie plate having corresponding `undulating portions adapted tok interlock with the undulating surfaces of the hase flanges for the purpose of preventlongitudinal creeping of the rail, the underside of saidV tie plate having a` recess therein and cushioning means located between the tie plate and tie'and consisting of a fibre block adapted to extend into the recess.

2. In a railway road bedy the combination with a tie, a tie plate mounted in fixed position upon the tie yand a rail supported upon the tiey plate the sidekv edges of the base fianges'vof the raivhpresenting undulating surfaces and the tie plate y,having corresponding undulating portions adapted to interlock withthev undulating surfaces of the base flanges for the purpose ofpreventling longitudinal oreeplng ofthe rail, the

underside of` said tie plate having a recess therein; and 'cushioning means between the tie plate andthel tie'said means-consisting of a creosoted nbre block having a portion adapted to extend intoand snugly fit said recess, the tie plate and block elevating the rail to a considerabler degree above the ballast of the road bed. Y' ln testimony whereof I havesigned my name to this specifioationin the presence of Witnesses:

f E. lV.' SAUVE, G. jFAvRnAU.

Louis P. oHiooiNE.

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