US1745747A - Roadbed construction for railways - Google Patents

Description

Feb. 4, 1.930. w. P. DAY

HOADBED CONSTRUCTION FOR RAILWAYS 2 Sheets-Sheet l Filed July 15, 1929 thune/41 I'IIIII' Feb. 4, 1930.

W. P. DAY

ROADBED CONSTRUCTION FOR RAILWAYS Filed July 15, 1929 2 Sheets-Sheet 2 F? F- i y i5' RID, QQ' DIJE' iii um 1::

. iae'ntea ret; 4,. 1930k WILLIAM P. DAY, oF cLEvELAiID HEIGHTS, oHIo f y RoADisni) "cion'srnuorion non RAILWAYS Application mea .my `15:,

' invention relates to a` roadbed construction for street'or boulevard railways and the main object of the invention is to provide a roadbed v'construc'tionfiirwhih any water` dra. 'ed away from tlipbiases ofthe rails and A prevented from Vcollecting' around the rail plates or the ends of vthetes. f v ,y

Another, object of the inver/inonde. to) pie;

10:"vi`de al roadbd construction in which rails are supported.uponl alower layer or foundation of concrete wiiieh is ,provided .with dieta openings which pemitthe datei to" drain away from thebasjespf the raus'. y j 15'v A farther object if the' invention iste' pro'- .vide aroad bed construction ofthe 'character 'de-sented which @hasta f a fanaauonar conerete which is provigdeolpwith suitable drain e(')peiiin'gs for draining the water awayy 201 from the rails and in which the upper portion of the roadbed is frmed of one or more layersof road Iforming material which is readily renivable to permity the rails to be removed ik for replacement or repair. H i

f5 A turnier abject' er thaiavenuon ist@ pro'- .videa- @demonstration of. irachene: described whiclfthevbasesof the-railsand thefaiipiaeetawhich ai@ maaar@ searea which will tend to direct the water awajyv from the ,rails yand into suitable drain openings. A still furtherobject; of the invention is vto provide a yroadbed construction of thecharacytery described which Aconsists of a concrete foundation on which are supportedsteel ties whihlare so'shapedand arranged that the central portions'y of the tieshare embedded in the `confcrete foundatien and the end portions i are deflectedupwardly and disposed in a plane abovethefoundation. l A y AFurther and more limited objects of the I invention willr appear asthe description projceeds .and by referencegto the` accompanying drawing in which Fig. 1 is a verticall sectional view through the roadbed disclosing the preferred embodimenty of my invention;` Fig. 2 is a .verticalkpsectiona'l view on the line `22of 1,; Fig. 3 `isa top plan view of one ofthe if twin ties; and 4 is a view in end eleva-y tion of one of the twin ties.

are covered withV a, waterproofing material` 1929. seriai No. 378,233.

Referring now to the drawings, the reference characterl designates the bottom layer of concrete which will be referred to as the foundation. Disposed belowthe foundation and preferably between the rails is,y a drain conduit 2 w'hich extends longitudinally/ of the track and practically parallel therewith,

` Arranged at intervals about three feet apart and extending transversely of the road-bed are trenches 3 from which lead branches 4, 4a and 5, 5"?.v The trenches 3L and the branches 4, 4a and 5, 5a are preferably filled with gravel, stone, cinders or Iother suitable material adapted to permit water to drain there? through and into the maindrain conduit 2 which is preferably formed of drain tile.

lSupported upon the foundation are ties 6 which are preferably `made .of steel and are of the twin type. The ties consist essentially ofrail plates 7 andS which are connected cross beams or angle bars 9 and 10. Therail plates arerprovlded with oppositely disposed pairs of T-shaped openings 11 and 12 which securing `the rails in place. .The rail plates alsomhave portions ycuttherefrom and ,bent downwardly as shown more clearly in Fig. 3, which portions are embedded :inthe road forming material when the construction is completed. Each of the angle bars'or cross beams` 9 and 10 are `shaped as shown niosty are adapted toreceive tie clampsV therein fori clearlyin Figs; 3 and .4 and consistof a central portionra, oppositely inclined portions o and end portions c'. The central portionsof theangle bars are preferably embedded in the' concrete foundation as shown most clearlyin Fig. 1. The endiportions c are disposed in a plane above the foundation. The foundation is first laid with the rails arranged in vthe po-v sition1 shown in Fig. 1 and the concretevis allowed to harden andset. The spaces beneath the rail plates 7 andy are vthen filled witha waterproof `material known as bituminous concrete and which consists essentially of slag' and crude asphalt in approximately thel following proportions: y y ,y v

3 parts fine slag, 2 parts coarse slag), 1 part crudel asphalt. The rails 13 and 14 are secured to the rail plates bysuitabletie clamps. The rail platesare'v also covered with bitumilnous concrete which extends upwardly along each rail to a point adjacent the top thereof. This material 15 is inclined toward be seen that these two layers of material completely fill'the space between the rails and adjacent thereto so that only thetops kof the rails are exposed. It is, of course',l understood that one'or more layers of material may` be used for .this purpose.'

According to the preferred Vmanner of forming this roadbed construction, I first provide a trench of suitable depth and which is slightly wider than the track. "Ithen place within the trench the main drain conduit 2 which is preferably formed of drain tile. Suitable forms are then inserted to provide the trenches 3 and the branch drain openings or conduits 4, la and 5, 5a. The ties are then arranged in place and supported on suitable blocks with the rails secured thereto in a manner well known. to those skilled inthe arti The lower layer of 4concrete is then poured up to the level shown in Fig. 1 and allowed to harden and set. Due to ltlie shape ofthe angle bars, the end portions of Y thev tieswill bedisposed above the foundation. The spaces beneath the rail plates are then lled with bituminous concrete which is 4tamped into place. `The rail platesand'the bases of the rails are then covered with a layer of the same `material which "extendsfupwardly to a'point near the top of the rails.

The surface of this material is inclined sofas to drain toward the branch drain conduits hereinbefore referred to'. This materialgis allowed to set and the layer of concrete'l isapplied up to about the level indicated in Fig. 1 'and' allowed to harden and set. rIhe layer of surface material 17 is then applied in the usual manner and may consist of asphalt,

concrete or any other suitable material. VBy

referring to the drawings, it will be yseen that the branch drain conduits 4, 4a and 5i, 5a

f extend only through the foundation and kterminate along opposite sides of the rails adjacent the edges of the waterproof material. These drain openings are preferably about three feet apart and extend along both sides of therails as shown.v kIt will now be clear that any water which may seep' in along the heads of the rails will strile'the layer of bituminous concrete which is waterproof and be deflected into the branch drain openings 4, 4a and 5, 5a and drain through the trench 3 into the main drain'conduit 2.

It will also be clear that the upper 'layers of material,.including the bituminous concrete, may be removed downto the foundation without Ydisturbing the rails so as to permit the railsto be removed'for replacement or repair without disturbing the foun-V,

dation.v It will now be clear that I have provided a roadbed construction which accomvplishes the objectsof'the invention as liereinbefore stated.'A Y j.

Variousfchanges may be made in the'y manner ofassemblingyand arranging the various parts without departing from the 4spirit of the invention.r My inventi'onis also not limited to any particular'type of road formingmaterial either for the foundation or forthe uppermost layers,andwhile I have in'this specification used the term concrete, it is to be understood that vI do notintendby this term to limit ythe invention to any' 'specificH mixture of material, but rather to use jthe term' generically as embracing all of that class of materials in which a suitable bonding material, such as cement or asphalt, is usedy in connection with gravel, stone, sand or sim-f' ilar material. It is therefore understoodv thatL the invention is limited only inv accordance 'with the scope yof the appended claims.

Having thus described my invention, what I claimis: j j

1'. A roadbed construction for street or boulevard railways comprising'a concrete foundation, a pluralityof steel ties `of the Y twin type` having rail plates secured to the 100. ends thereof, the central portions of said tiesVV being embedded in the foundation and the" end portions and rail plates being disposed in, a plane above said foundation, rails secured to said rail plates respectively, awat'erproof material llingthe spaces beneaththel frail plates and also Vcovering theV bases of the f rails and extending upwardly alongeach rail toafpoint adjacent the top; thereof, andVV road formingv material yfilling' the space ybetween and adjacent said rails.

'2. rloadbed' construction for street or boulevard railways comprising a concrete foundation, a plurality-of steel ties of they twintype having rail plates secured to the ends thereof, the central portions of said ties being embedded Vinthe foundation and the end portions andl rail plates being disposedy in a plane above said foundation, rails se'- cured to said rail plates respectively, a waterproof material filling the spaces beneath the rail plates and also coveringthe bases ofthe. rails and extending upwardly along each rail to aV point adjacentfthe'top thereof, road' d forming materiallling the space between and adjacent said rails, and a drain conduit disposed below said foundation and having ya plurality of branches leading throughthe foundation and terminating along opposite sides ofvsaidy rails. f i

. A roadbed construction for streety or l boulevard railways comprising a concrete material consisting of bituminous asphalt.

4. A roadbed construction forstreet and boulevard railways comprising a concretefoundation, a plurality of steel ties the central portions of which are embedded in said foundation and end portions of which are disposed in a planeabove said foundation, a pair of rails secured to said ties respectively, waterproof material filling the spaces beneath ,the end portions of said rails, said waterproofing vmaterial extending upwardly about each of said rails to a point adjacent the top thereof, and road forming material lillilng the space between and adjacent said rai s.

5. A roadbed construction for street and boulevard railways comprising a concrete foundation, a plurality of steel tiesthe central portions of which are embedded in said foundation and end portions of which are disposed in a plane above said foundation, a

tral portions of which rest on said foundation and the end portions of which are disposed in a plane above said foundation, a layer of waterproof material filling the spaces beneath the end portions of said ties, a pair of rails secured to said ties respectively, waterproof material filling the spaces beneath the ends of said ties and covering the bases of said rails, and road forming material filling the space between and adjacent said rails.,.

8. A roadbed construction for street or boulevard railways comprising a concrete foundation, a plurality of cross ties the central portions of whichrest on said foundation and the end portions of which are` disposed in a plane above said foundation, a layer of waterproof material filling the spaces beneath the end portions of said ties, a pair of rails secured to said ties respectively, waterproof material filling the spaces beneath the ends of said ties and the bases of said rails, road forming material filling the space between and adjacent said rails, and a drain conduit extending along the track and having branches leading therefrom for draining water away from the rails.

In testimony whereof, I hereunto affix my signatur WILLIAM P. DAY.

pair of rails secured to said ties respectively, v waterproof material filling the spaces beneath the end portions of said rails, said waterproofing material extending upwardly about each of said rails to a point adjacent the top thereof, road forming material filling the space between and adjacent said rails,

and a drain conduit disposed below said foundation and having a plurality of branches c leading through the foundation and terminating along opposite sides of said rails.V 6. A roadbed construction forstreet or boulevard railways comprising a concrete foundation, a plurality of steel ties the central portions of which are embedded in said foundation and end portions of which are 'the end portions ofsaid rails, said waterf proofing material extending upwardly about j each of said rails to a point adjacent the top thereof, and road forming material filling the space between and adjacent said rails, saidwaterproofing material minous asphalt.

7. A roadbed construction for street or consisting of bituboulevard railways comprising a concrete foundation, a plurality of cross ties the cen-

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