US1755698A - Highway railroad crossing - Google Patents

Description

c. M. LlsH 1,755,698

HIGHWAY RAILROAD cRossING Filed oct. 8, 1928 l iii/runen' "ia I4 APY 22, 1930.

5 A .rw A u w il?? Patented Apr. 22, 1930 i UNrrl-:D sTArs fp" CHARLES im LIsII, lor VALPARAISO, INDIANA i iarIeirwAvy RAILROAD CROSSING.

,i Application iled- ()ctober' 8, `1928. Seriali-No; 310,984.

My` invention relates to improvements in highway railroad crossings and 1t more especially consists of the fea-tures pointed, out-in the claims.

Y l The purpose of myinvention is to provide corrugated metallic units formed induplicate for use between lthe rails; to provide duplicate units for use outside of the rails; to overcome vthe slippiness of all metal .treads for highwayy crossings; tol combine VKnarrow metallic portionsextending'crosswise of the `highway with alternate parallel portions of concrete or other roadwaymaterial; to provide for the easy installation .of the metallic units at highway crossings, 'on bridges,V

etc.; to produce a form of crossing which can be easily manufactured at small cost; and to provide a crossing thaty is almostindestruct- 'ible.

Y With these and otherends in view Iillustrate inthe accompanying drawing such instancesof adaptation'as will disclose the broad underlying features ofmy invention ing duplicatey sections on .each side-vof the track ,rails. 5" f Fig.' 5 is an elevation in section showing shallow grooves formed inthe upperorstreeti' Vsurface portions of my metallic railroadgrade crossing.

" tion `showing fasteningmeans applied at the Fig.A 6 is a further modication of Fig. 3.

Fig. 7 isan elevation 1nl longitudinal secends ofthe 'corrugatedvr units.l

,Figg 8 is yan elevation insection ofa pair j of replaceable units.` n

' In practicallycarrying outniyinvention;V

I may use whatever alternative forms of construction that the eXigencies 'of traflicA ,and other conditions may demandV without depart- `ing from the board spirit of the invention.

All sorts of expedients,'metallic and otherwise, have beenproposed to make railroad'VA grade crossings easy to negotiate7V and to .in-

-sure a long life of the materials that are used' to fill in the space between the track rails of the railway and also to form the approaches,

0n each side of the railway line. Slabs ofVA concrete, ordinary wooden planks and flat metallic plates have been proposed, andin instances used. With concrete slabs there is a rapid deterioration of the adjacent upper corners of the slabs. Wooden planks have.l

a notoriously short life aside from their slippiness and tendency to curl inhot weather.

All-metal. plates have been found unsatisfactory because of theirslick upper surface vwhichis not entirely overcome even thoughv rivet heads are placed here and there. There is arfurther disadvantage in the use-of metallic units placed only on each side ofthe track being lilled with ordinary paving materials;

n With my invention I overcome these diliip l culties by forming a metal sheetl into deep 'duplicate corrugations, each corrugation a'pproximating a rectangular shapein cross section. rvThe upper or street surface portion vof the corrugationunites the vertical portions and these in turn are united by a base portion through which any desired fastening means may passfor'holding the corrugated .Y

units on the ties.Y The corrugations which open upwards are filledv with any desired material which has a more or less rough surface. Concrete or any substitutemay be used. Y

separatefastening plates may be used at the outer` ends of the units, as shown'in Fig. 8. The latter expedient' will -be found` very Y 85 Instead of placing fastening means v through the lower-portion of the corrugationv serviceablewhenever the road bed, ties, etc.,

require attention, for in such an event completed corrugated units, shown in Fig. 8, may

be bodily removed whileV the repairs `are being made,'and thereafter replaced, p

The individual unitsmay contain whatever number of corrugationslare foundfto be Y expedient. If desired the end lfastening yplates may have an upstanding projection, as shown i'n the rrightghand portion of Fig., .1.00

rails, the space between the inner sections. f70. f

' ioY vor a bridge j pavement,

These projections separately close the open ends of each upwardly facing corrugation and they serve to hold the Concrete or whatever filling material is used in place while it is setting. When these plates are fastened to the ties they will securely hold the units in place and yet they are readily removable. The individual units, shown in Fig. 8, may be formed'as duplicates of each other Vfor the mid portion of a railroad grade crossing or the units may be made in duplicate to serve for the approach portion of a crossing and as separate units for the inner side of the railway rails.

. Standard interchangeable units comprise vertical portions 5 joined at the top by yportions V11 and at vthe bottomY by portions 6.

.or other material 10v is placed.

rlhe outside edge of each unit isv formed of a single vertical portion 5 that may be joined at the top to another vertical portion 5 or joined at the bottom, as the casemay be. Into the upwardly facing corrugations concrete The units mayrest on ties 9 or any other support such as A'bridgegir'ders 20. The plates 25 may be )held by fastening nails 8 or otherwise, and if i extending projectionsY by spikes desired, the plates 25 may have upwardly 26, wide enough so that a single one will approximately close the open end of a corrugation'into which the paving material 10 is placed.

In case it is desired to install the unitsin a relative permanent manner the, expedient shown in Fig. 1 may be followed. In this instance two duplicate units are shown between the track rails which are secured to the ties or nailsV 8, 'or otherwise. lNhere these units meet bottom flanges 12 may be formed as shown in Fig. 1 and the portion of each unit adjacent the inner' edge of the rails 4 may Vbe formed with a reverse vertical bend 13, a short horizontal bend 14 to pass under .the rail head 1, and a reverse vert-ical bend 15 adapted to lie adjacent the web4 3 of the rail between its base '2 andthe head 1.

Y In Fig. 1 the approach units are shown in duplicate.

Vflanges 12, the usual base portion 6, vertical adjoiningthe,y

'niodified, as shown in portions 5 joined by va tread portion 4. The tread portions 4 and 11 may have slight grooves 21 formed lengthwise thereof, as shown in Fig. 5 andthe portion 7 ofthe unit outside `of the rail may be formed at an angle, as shown in Figs. 1 and 3. This portion will rest upon the base 2 of the rail adjacent the rail web 3. VThe units placed adjacent the inner edge ofthe rails form a wheel flange clearance 164. V

The structure instanced in Fig. 3 may be 4 the units for both edges of the rail 'may be rlhey comprise tread ortions 11 base aortions 6 vertical 5 7 portions 5, a narrow horizontal portion 22, a

short vertical portion'rQB, a diagonal portion to each other as it be Vformedat aslightlangle to eachother so rFliese consist ofroutside fastening Y Figs. 4 and 6. In Fig 17 positioned under the rail head 1, a vertical portion 18 positioned adjacent the rail Vweb 3, and a diagonal portion 19 resting on the rail base 2. This diagonal portion 19 may abut the vertical portion 5 so as to hold the vertical portions 5 and 18 in spaced apart relation; In'the case of Fig. 6, the tread por tion 11 is'joined to a short lvertical portion 23, a diagonal'portion 24 with a reverse bend onto itself and a horizontal portion 14 which engages the web of the rail just below the head. l

From the description it will be seenthat my invention broadly comprises forming a sheet material into deep corrugations of a given number and Yfilling the corrugations on one side of the sheet with a paving material,

and in suitably holding the so formed units in position in any cooperative manner for railroad grade crossings or bridges or for general paving purposes. Y

I do not of course limit myself to the sides of the corrugations being in parallel relation is obvious that they may as to form slightly undercut portions to assist in holding the paving material, shown in the left hand portion of Fig. 7.

Should it be desired to close the end openings of all the corrugations at one time a beveledplate V27 shown at the left hand side of Fig. 8 may be used. It has flanges 28 and 29 which may rest on a tie 9. In connection withthe outside flange 28 nails or spikes may be used to fasten it to 'the/tie and the'in'side flange orhfoot 29 may be positioned beneath the units with which it is assembled. The purpose of beveled ends, whether formed of sheet metal or wood' or otherwise'is to safeguard the units when used for railroad grade crossings against damage should any'p'art of a train become loosened and drag along the ties. The beveledA plates 27 will cause any dragging part to ride over the 'units without damage.

Vhat I claim is: v

1. A composite highway material comprising a metallic sheet formedrinto relatively deep corrugations having tread and baseportions uniting them, a support for the base portions positioned at points I throughout their length, and a suitable paving material positioned in the corrugations on `one side ofthesheetrV i j,

2. A composite highway'v paving material comprising a sheetformed'into corrugations having relatively-flat upper andrlower. connecting portions, and a suitable paving material in the corrugations.

Y A. new article of manufacture compris- .a plastic self-hardening"materialYplaced in the corrugations approximately to their full depth.

4;. A composite unit comprising a resilient metallic sheet formed into adjacent corrugations the edges ofeach unit beingfformed with 'walls that cooperate with the'edges of f other similar units, andy a/llingmaterial in the corrugations.

5. A composite highway paving material comprising a 'sheet formed into corrugations and a suitable paving material placed between the side walls of the uppercorrugaf tions and terminating approximately onthe same plane as the upper portions of such corrugations.

`6. A composite unit formed of a corrugated sheet having a given number of corru y gations one edge ofthe unit adapted to cooperate with an edge of a similar unit, the other edge adapted to engage the sides vof a Y railroad rail with the corrugations approximately parallel to the rail, and means for u 8. A new article of manufacture comprising a sheet formed into adjacent corrugations, a railway rail, edges of the sheet cooperating with the web and base portions of the rail the first corrugation adjacent thehead -i I of the rail being spaced apart from the rail head with the corrugations running approxiy mately parallel to the rail, a suitable paving material in the upwardly opening corrugations, and means for supporting such a corrugated vunit inV operative relation adjacent the rail against displacement. Y Y

9. new -article of manufacture comprising a sheet formedinto .relatively deep corrugations and adapted through the formation v K Y of its edges to position itself against` either side of a railway rail while leaving a space is between the V iirst corrugation and the head of the rail to form a clearance for the Hanges of traversing car wheels,A and a suitable'paving material in the corrugations as desired.

l0. A compositehighway paving'material comprising a sheetfformed into corrugations having grooved upperportionsl and relatively iat lower portions7 and `a suitable paving ma# terial in the corrugations.

f In testimony whereof I aiix my signature.

CHARLES M; LISH.

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