US1627217A - Railway-track construction - Google Patents

Description

ay 192'!v R. J. WELLS 1,627,217

RAILWAY TRACK CONSTRUCTION Filed Aux. 6. 1925 .lll

Patented May 3, 1927.

tetra-l wotnsoaoesaomome.

Miriam-TRACK oonsoeooriolt @time @1911, August 69 192,5. Smalto. leso...

My invention relates torailavay tiesand more particularly to further improvement of"tl`1e`c`onstruction disclosed in Illy-'cepend-4 ing applicationsfor Letters Patent, No. 693,000, filed February 15, 1924, since maturi-d `int@ Patent No. 1,528,999 dated Marelli, i0, 11925 mi serial Nidi 7,909, sied:

February '9, i925. Vllllfeas both prior constructions referred to,` contemplate the ein: ploynient offa resilient body ofseinifluidor plasticl character necessitating the 'ernploy ment'of a receptacle or container to, confine` the cushion material, the present invention differs therefroni by utilizing a solidified foi-in of resilient cushion material* which 'readily' retain its forrnuntil enibeddedl'iii the `cncrete road` bed' or "other" supper@ thereby eliminating the necessity for a 'special receptacle.

"In the'present construction there are con tenlipl'ated 'spaced bloctks off resilient mate'- rial,such as asphalt intermixedwith a filler ofy1 asbestos, saw 1dust orf other iibrousor'gran'- ular Inaterialfenabling the asphalt Inaterialj to be. Inoldedi intor form retaining bodies, such bloeksbeing interconnected" by trans! versely arranged tie, bars to!v Whirchthe blocks are 'connected by bolts which also. serve to, secyure topplates or sleeperplatesfof'metal restino upon the blocks 'of'resilient'material;`

and tie -tracky rails" vvhich' rest'V upon the:`

plates. The asseinbledslrieleton tie issuspended from the tracle rails over the excavated road bed or otherwise` supportedjin elevated position, and1 plastic concrete4 is poured around andfbeneath the tie struc7' tie therein. Y Y

' In pouring the concrete about theresilient supporting; lg'loclgs` and tie "bars, the blocks ture, thus 'embedding the spaced' forni' 'their` ovv'n cavities or recesses. in lthe concrete 4body which confoi1ns"closely'andaccurately to the blocks.

The inolded,y blocks are coniinedi to s uch cavities Aor recessesl of the concrete fbody the overlying` sleeper or top v'pl-fates which form 'closure lids 'therefor,.` The moldedf bodies resilient-` Wliic'li` arewnt Sohjoloetly lzosolarlt to. 'withstood bho Pros: sure, 'shock and' vibration of tr uprofhofl hools.Wthoutfollslort integration, though isufllolohtliflstloos.

hold their forni vvliile beinf i einbied'dedlff'the oohorole'are thus; within the. ooh? @roto boclyagalnsl dsrlaoomoal; distortion,

*o over the:

coolers or change ofform. rPhe cover plate may be "though not necessarily, peripherally flanoed to over and enclose thetop mai# girls "of the moldedl resilient-- block. This a Vsimple'l flat plate of' lnetahbut is'preferl sleeper" plate being4 embedded substantially f kflush with* `the top" surface "of the concrete body effectually-prevents theoozing` or es` cape. of' theresilient material fro'rnk therecesses orpoclets formed'I inthe concrete.V

tho. S'hoolill'ol as. Woll als lh@ hoffis fled modo oliosta allori ofN Suolo. railway tios Wllorolor they, ifill hotohly bo oholioonofd in construe tion, bol'willf hof more olfolohl inteso, ofY lh? oroaoool olhrelolllyhehol Woerrs qualities.' Y

oooivfol lo) formi aooommoflitlhs an, ih'- oroaoool quantity 'of 'ooshoo mlofl, and uollioly tosotoutofropor A 'further ohio'ol of Atho invention. lo, lo insure hh'o roololil matriel bolos CloSoly.

oon'fhodh.thooonorolehooly by melons tho l oohoroto" body Conform. 'Closely ood @ooorately to, the body of resilient llllterialfenrbedded thoglolofllrlhfof oloj'ootof' tho invention. lo to. facilitate the manufacture andfalso 'theinsl Sllllotloh ofsoohtos i With lhoohov'o. primary and other inol- Clsnlel: obioots in. v'ow 'ois Will more folly' appear in the specification, the'invention`r consists of ,thefeatures of construction, the Potts and, Combinations thereof, and the mde of; operation or, their equivalents, as

hpe'ihaftolt'flosoibodjoool sot. tori-h in, the

' Similarv Chari t. While the ho. oonstruoti'oli forming the s993929 @alle 'me b-emoloyell for shock and vibration and so prevent breakageand disintegration of the concrete subbed. effect a transverse reinforcementjmember for the concrete' foundation or road bed. So long as the concrete road bed remains intact it functions as a single enlarged sleeper or support Which distributes trafc pressure throughout the entire Width of the road bed. If subjected to'ordinary traffic shocks and the impact of car Wheels, such concrete road bed is liable to more or less breakage and disintegration. vThe skeleton structure of the present tie, not only serves to reinforce and tie together the concrete road bed, enabling it to resist breakage, but the resilient blocks at opposite ends of the tie structure upon which thesleeper plates supporting the track rails rest, serve to cushion and absorb the shocks and vibration thereby protecting the concrete foundation against such l spaced relation with their horizontal flanges inwardly directed one toward the other. Located adjacent to the opposite ends of the bars l and resting uponV the inturned flanges areresilient blocks 2-2. These blocks are formed from anysuitable resilient material. The most suitable and practical for commercial production at the present time is asphalt intermued with a suitable filler, such vas asbestos, saw dust, marble dust or other material which Will form with the asphalt a form retaining mixture.. rlhis mixture is preferably such that it may be molded in blocks, either under pressure or in the pres` ence of heat. "The essential idea is to give to the body.T sufficient rigidityY tofenable-it to be assembled in the skeleton tieand to be handled 1n shipment and installation Without breaking, yet Without destroying its resiliency when under load. The quantity of filler and decreased resiliency is` somewhat compensated for byv making the block, of

The tie in such installa-tion becomes inv greater thickness than the stratum of semif'luid'asphalt employed in the constructions before referred to. Y

The top of the block 2 is preferably chamfered to receive the marginal flanges 3 of the recessed cap or sleeper plate 4. The marginal edges of the sleeper plate 4 are substantially flush with thesides and ends of the resilient block 2. In lieu of providing a recessed cap or sleeper member 4, a simple flat Vmetallic plate 5 agreeing in length and-width with the dimensions of the block may be employed as shown in Fig. 5.

The block and sleeper are interconnected with the angle bars l-l by bolts 6 extending through corresponding holes in the respective members. The samerbolts 6 carry at their upper ends clamp members 7 for securing the track rails 8 to the tie structure. The completely assembled ties are supported over the road bed at the established grade, and a body of concrete 9 is .poured around and beneath the skeleton ties embedding such tie structures' in the concrete body. A convenient method of installation successfully employed is to attach the track rails directly to the ties With the ties properly spaced, and then level the track rails at the established grade upon temporarysupports while the `concrete is being deposited. The

preformed blocks l 2 of resilient material` form. cores'` around which the concrete flows,

thus making the concrete and resilient bodies conform accurately vto each other, and the body of resilient material accurately and completely fills the pocket or recess thus formed in theconcrete body. .The sleeper ico plates v4. and 5 beingthesame size as theV blocks of resilient material, also accurately fit the pockets or recesses in the concrete for which they form closure lids to prevent the escape ofthe resilient material` Alone the blocks 2 would not support the Weight of trafc nor withstand theV shocks incident thereto. However once embedded in the concrete they are confined and supported against distortion, and are so enabled to yieldingly support. the imposed Weight-s and pressure and withstand the shocks. The sleeper plates being supported Wholly by the enclosed body of resilient material and independent of the concrete are free for slight vibratory movement verticallyv against the yielding resistance of the confined body 2. tFitting closely y within the recess in the concrete body the sleeper plates effectually prevent the oozingV of the material veven in warm weatherand under heavy traffic pressure. One of the difficulties encountered in the early attempts to vemploy asphalt or like material for cushioning effects'in railway ties Was the tend-1v v ency for the material to ooze out of the receptacle when subjected to heavy pressure' This tendency was especially prevanecessary when.Y a semi-:fhiiidfbody 021i asphalt,

W'hile asphalt intermiisedfj inert. mat.v ,ter is' described as the prefnrabl,eiYresilient;l materia-l, it is to: be. undarstootbthat/.f` 'otih material? possessing theL requisite chagiantere,

istics of being resilient, and retaining. forni under ordinary conditions, may be substitutedt Azlso.. while;` angle bars afford a convenient form of stock material readily obtainable for interconnecting the blocks and forming the reinforcement, other shapes of bars or tie rods may be employed.

From the above description it will be ap-l parent that there is thus provided a device of the character described, possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrangement of parts without departing from the principle involved or sacrificing any of its' advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific details shown, but that the means and construction herein disclosed comprises the preferred form of several modes of putting the invention into effect, and the invention is, therefore, claimed in any of its forms or modifications within the legitimate 'and valid scope of the appended claims. Y

Having thus described my invention, I claim:-

l. In a railway track construction, a plurality of spaced blocks of resilient material having insufficient strength to withstand trafiic impact shocks, but being sufficiently strong to retain their form during investment in a body of concrete, tie bars connecting the blocks -in pairs, sleeper members resting upon the spaced resilient blocks, and a body of concrete molded in situ about saidV blocks and bars wherein the blocks are utilized as cores which form in the concrete body recesses to which the blocks of ,material conform, said sleeper members being supported by the embedded resilient blocks independent of other supporting means.

2. In a railway track construction, a body of concrete, Vmolded bodies of resilient material having sufficient solidity t0 retain their ferm; @dehesa-embedded in; the concreta but lreujeieaily te latam their: wher meantime, the pressure Ofinasienaztrafw, recssseafelmediathe C011'-Y @wie bada Wifi-lm'Wlilisthehloelss` Closely r @Marmi 'and sleeper-y plates- .resting-f anon@ the embedded( bodies. Ot resilient material: mdapelideat et; other Supporting means 3: The herein:` desribedf. method: @t rail:

way trafila @erstellst-ions, Censis-biagi ie forming blocks of resilient material--lifavil'ig-rfhacharacteristics of soldifl asphalt, eni- Iileywg preformed-.blo @ks ascolta pouringfa of?dinars/11eA about: Said Cor-,Gs and mf intimateicontaettherewdthi measure-.close .fthe resilientaeores Withinithe Cencretebady, said@ ianaliaddedI cones and Supporting. track. milsuipon the-.Sleepermembers., V 4. The herein described method of railway track construction consisting iii providing bodies of resilient material of such consistency as to retain their forms duringeneasement but normally insufiicientlystrong to resist traffic pressure when unconfined, utilizing said bodies as cores and pouring a body of self hardening material thereabout in direct contact with said cores thereby embedding the cores in close conformity with the surrounding body, resting sleeper members upon said cores and supporting track rails upon said sleeper members. Y

5. In .a railway track construction, tie bars arranged transversely of the track structure, sleeper plates interconnected in spaced relation with the tie bars, preformed bodies of resilient material interposed between the tie bars and sleeper plates and utilized as cores in the formation of a concrete body thereabout, and a body of oo ncrete poured in situ about said core blocks and in direct contact therewith in which said resilient core blocks and tie bars are embedded, and track rails supported upon said sleeperplates.

6.` In a railway track construction, track rails, sleeper plates upon which the track rails rest, tie bars interconnecting` the sleeper plates one ,withl another in pairs, .bodies of resilient material located beneath the sleeper plates and a body of concrete Zigi nestingfsleeneri memhersillnani in which the bodies of resilient material are' embedded.

7. In a railway track construction, a plurality of preformed bodies of resilient material interconnected one with another having the characteristics of solidified asphalt, and

rest including a preformed block of re? silient material of insucient tensile strengthV to alone withstand the pressure of traffic passing over the rail, and a body of concrete or the like molded in situ about said block as a core,` whereby'the molded body closely conforms to the shape of the Vcore block and coniinessaid block against distortion anddisintegration under traffic pressure upon the rail which is supported upon said block.

9. VIn a railway construction of the character described, a body of concrete havingA a pocket formed therein, la body of resilient material substantially filling the pocket, and a metallicfsleeper plate vrresting upon the body of resilient material and extending below the surfaceV of the concrete body Vforming a closurefor the pocketfre'e for-vibraindependent of engagement with the conv crete body, `said sleeperplate in turn sup-v porting a track rail'.`

l0. In a railway construction of the character described, a body of concrete having a pocket formed therein, afilling of resilient material Withinrthe pocket, and an inverted pan shaped sleeper plate enclosing the upper portion of the filling of resilient material and extending Within the pocket for free vertical vibratory movement independent of the'concrete body. y

, In testimony'whereof, I have hereuntorset my hand this 3rd day off'August A; D. 1925. f

RALPH J. WELLS.:

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