US1613850A - Crossing pavement - Google Patents

Description

-1 1,613,850 Jan. 11 1927' A. E. SCHERM CROS SING PAVEMENT Filed om. 14 192e 2 sheets-sheet 1 gn'uzntoz w, www

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1,613 850 Jan. 1l 1927. A. E. SCHERM CROSSING PAVEMENT Filed octi 14, 192e 2 sheets-sheet 2 I m G I 'J nomtofr;

@v Wwf' W atliozuaad Patented Jan. 11, 1927.y

UNITED #STATES PATENT 0in-ICE.

ALBERT E. SCHERM, or CINCINNATI, oHIo.

CROSSING PAVEMENT. f

"v Y Application led October 14,1926. I l:Serial No. 141,632.

The invention relates to a roadway pavement at; railroad intersections or crossings to present a smooth and-durablev surface 1n a plane withor anunobstructed approach to the tread surface of the rail.

Considerable difliculty has been experienced in providing a Vsuitable and durable -pavement construction forrailroad crossings on account of the Vvibration of the rails and Y 'a pavement consisting of metallic plates or sections for bridging the trackway, the sections fixedfto the rails at one or both ends and supported upon the tie at an appropriate distance from the rail. 1 f

Other featuresand advantages of the invention are more fully set forth in the description of the accompanying drawings forming a part of this specification, in which:

Figure 1 is a cross section of the railroad track with the improved crossing pavement applied.

Figure 2 is an enlarged cross section similar to Fig. 1, except showing the same through one of the rails, and with the plates in section. Y

Figure 3 is a top plan view thereof.

Figure 4 illustrates in cross section a modilied form of construction in which plate sheets or slabs are employed for the pavement.

Figure 5 is a top plan view thereof.

Figure 6 is a cross section through a modified form of rail.

Referring to Figures 1 to 8 inclusive of the drawings illustrating the preferred embodiment, 1 indicates the cross ties imbedded in the track ballast 2, and 3 the ordinary T railroad rail spiked to the cross rails. A. ledge plate 4 of U form in cross section having the characteristics of the ordinary Lfish plate, is secured to the web 5 ofthe rail between the head and base thereof by bolts 6.

The plate is provided with an extended offset base flange 7 to lap over the base of the rail to bring its forward or rtoe end directly upon the cross tie to which it is spiked. A Second flange or ledge 8 extends from the opposite end of the plate for supporting'one end'ofthe bridge orpavement plate, with .the upper surface of the plate in a plane with the'tread surface of the rail, or in approach to the rail so that the rail forms no obstruction in the crossing. 1

' Two types of paving plates are preferably used, one for the outside of the track, and a second for the spacing between Vthe lrails which may be termed intermediate plates.

These'intermediate plates 9 are preferably of a 'length 'to take up the width between the rails, with the oppositel ends thereof connecting with'the respective' rails between which they lie', or connected to the ledge' flange of the ledge plate4. K The lower sidevof each intermediate plate' 9` is integrally providedvw-ith a rib 10 tapering from the opposite ends of the plate to la base or shoe flange lladapted to rest upon a tie and furnish an intermediate support for the plate.

'The rib at each of its opposite ends terminates with a transverse rib 12 ofthe widthof the plate, Vand forms a shoulder against which the edge of the ledge flange may abut.

Where the intermediate plates bridge between a pair of rails in the track, the edges of the plate are inclined and spaced from the vrail, and therewith form a groove 13 to provide a channel or clearance for the flange of the wheels. The pavement plates are bolted or riveted to the ledge plates and are of appropriate section width which will withstand the heavy vehicle loads to which the roadway may be subjected. In such capacity, a number of plate sections can be readily removed to gain access to the ties or rails, as for instance, at the rail joints, without taking up the entire crossing pavement or materially interfering'with the roadway traliic. This also permits plates to be renewed should any become broken.

The outside plates 14, for their end portions which connect with the rail or ledge plates, in structure substantially follow the constructions of the intermediate plates, so that detail reference need not be made. The outside plates preferably are of a length to reach from the rail to the end of the ties, and the outside end thereof preferably is of channel formation as indicated at 15, to provide a base for supporting the plate to the tie, with its upper or face surface in a plane with the tread surface of the' head of the rail. It is also provided with a longitudinal intermediate reinforcing rib 16 to strengthen the plate, asin -the case of 4the intermediate plates.

rl`he end of the roadway pavement adjacent the outside pavement plates 111, is preferably provided with a `channel iron nosing 17 slightly spaced from the .endof the pavement plate 14, with a pitch or alike filler material 18 intermediate-the plate and;

nosing for furnishing an expansive joint.

iglnftlie; inodicat-ionshown in Rigs; Lland 5., the pavement'plates areerepresented as of sheet or slab forniv with plane sideisupported Y.upon timber slioring- 19 resting I and se curedv to the cross vties, and otherwise the structure follows Ythat 'described `for Flgs. 1 to; Srinc-lusiie, in the .method of securing the .fplates orgrsla-bs to the rail or'ledgeplates.

-lig-ure 61 discloses a modification of axrail 'structure :in which4 ledge flanges v2O @are Eforn'iediintegral with the rail for supporting theipaveinentiplates and-securing the saine lo, the rail in the `substitution *for the .separate ledge, plates previously described.

Irlavingdescribed my invention, I claim: 1. iA railway roadwayy crossing pavement,

comprising, a' ledge plate of' channel form Yadapted; to

besecured to a; rail andfengagedibetween -cthe head :and'base portions -tliereof, .zand a metallic pavementV plate or slab secured at .one end to the ledge "plate and supportednpon a cross tie iof the rail at.V aipointiremoteffrom the rail withtl-ie up- `.ledge -plates;'andffsupporteduponfslaid, ties .to'isustainthe plates in planel with the tread :surface ofthe rail.

v3. 'A railway-roadway crossingpayement, comprising railroad rails having. a ledge eX- tending ,upony a side thereof, longitudinally ftherewith, and metallic slabfsections-iixedito said ledge and y ha-ving aI =bearing-si1pport upony the Yrail .supporting 1crossties.

L A railway-roadway.:crossing pavement, comprising, `railway -i'ails lia-ving l ledges k,ex-

`tending vvfrom @the .oppositesides= thereof Ylo,ngitudinallyY ofitlie rail, a plurality ofslab .sections .arranged and Y*secured .in a plane withche roadwayandtread surfaceof the rails, fined at its opposite-endstoftlieiopz.pesi-ng nails of the ltraclt `and intenmediately supported upon the frailvsupporting., cross ties.

, in witness i whereof; ,I liereiuitossubscribe my name.

ALBERT E. SCHERM.

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