US1480370A - Railway-track structure - Google Patents

Description

Jan. 8 1924.

C. BURTON RAILWAYv- TRACK STRUCTURE Filed Sept. 13 1925 2 Sheets-Sheet l.

Jan.s,1924. 1,480,370

C. BURTON RAILWAY TRACK STRUCTURE Filed Sept. l5 1923 2 Sheets-Sheet 2 @etented den. 8, i324.

RAILWAY-TRACK STRUCTURE.

Application nled September 13, 1923. Serial No. 652,524.

steel alloy other than manganese steel scf cured in position rail sections.

@ne object of the present invention is to provide a track structure of the above type composed of rolled grooved rails having their inner ends connected by a body of cast ferrous metal and a hardened steel Wear plate secured in position between the inner ends of the rails to complete the struct-ure, said wear plate being composed of a suitable at the Yintersection of the 'steel composition capable of being successfully built up by Welding by the deposit electrode or other suitable welding process,

when the Wearing parte become worn underl the action of wheel traffic.

Another object of the present invention is `o provide a track structure ot' the above ype composed oi' rolled grooved rails and iardened wear plates ci' other than manganese steel, in which the wheel flange grooves or i angeways have their floors tapered down towards Ithe extreme. ends to the normal dept-h of the groove in the connecting rail so as to provide a tloor elevation through the intersection which will engage the flange of a valu passing through the intersection and raise the trend portion of the wheel above und free of the rail head, thereby preventing the sho/gli due to the treads ot the Wheels passing over zhe interrupted head surfaces, and the d ublc weer thereon duc to the -passage oi' trains in two directions over the ends o1" the rails.

.Il turiher object lo provide a railway track strut-ture composed ol the novel constriuilon, design and combination of parts here iaftcr described, and illustrated in the accompanying drawings.

ln the drawings, Figure -l, is a plan or" a switch frog constructed in accordance with this invention. f

Figure 2 is a side elevation thereof.

Figure 3 is a plan of a crossing structure constructed in accordance with this invention.

Figure #l is a side elevation thereof.

Figure 5 is an enlarged sect-ion through one ofthe rails, forming the crossing of Figures 3 and l, showing the position of a car wheel passing thereover'.

Referring more particularly to the drawings, the letter Ardesignates the several rail sections which are Ijoined to make the track structures by center or wear plates 2 and cast metal connecting portions 3. The rails A are of the rolled grooved rail type and comprise a base flange-l, web 5, head 6 and a guard flange T. The head 6 and guard flange 7 are separated -from each other by a groove or langeway tl, in which the` flange of a car Wheel is adapted to travel.

ln either the frog or crossing track structure, the groove 8 is provided with an elevated floor at the points oi intersection. In the present embodiment of the invention the tioors of the grooves S are shown tapered down gradually towards the cxtreme ends 'of the normal depth of the groove 4ol" the connecting rail.

lt will be readily understood that, as

clearly illustrated in Figure 5, a car Wheel u nen approaching and passing through an intersection in a track structure constructed in accordance withthis invention, will have its tread elevated above the face of the head of the rail, due to theelevated floor 10 of the groove 8. lith the tread o't' the wheel thus elevated the shock and wear, due to the wheel tread passing over the interrupted rail heads atjthe intersections, is entirely eliminated, and consequently the life of the track and wheel'are great-ly lengthened.

In the straight crossings illustrated in Figures l and 4 the guard flange 7 has its top face on the same plane with thetop face of the head so as to form a smooth crossing and prevent unnecessary shock to traffic passing ther-cover. The dotted line l2, in Figure 5, indicates the top of the guard lila-nge in straight crossings.

The wear plates 2 are preferably made oli alloy steel hardened by heat treatment, such for example as chrome steel or nickel steel or other known alloy steels which can be hardened by heat treatment andy which are capable ot being built up, when Worn, by Welding or electric deposition of metal to their Worn surfaces Without removal from the track structure. Wear plates in frogs and crossings have been built of manganese steelWhich is more durable than the ordinary rail steel. But manganese steel cannot be successfully built upon its Worn surfaces While in place in the track structure by Welding or electric deposition of metal on the Worn surfaces. Consequently such Wear plates have generally been bolted or otherwise detachably mounted in the structure.

With an alloy steel such as i have described, the Wear plates can. be permanently mounted in place, either by the use .of a body of cast metal 3 or by bolts or other fastening means.

While I have shown only two embodi ments of my invention, it vvill be understood that various other embodiments may be made within the scope of the appended claims.

l.. A railway track structure comprising, in combination, intersecting rails of the grooved rail type, and a hardened steel center Wear plate secured at the intersection of said rails, said rails and said plate being provided with wheel ange grooves, said grooves having elevated floors tapered down towards the extreme ends ito the normal depth of the groove in the connecting rail so as to provide a floor elevation through the intersection, which will engage the iiange oi a wheel passing through the intersection and raise thev tread portion of the Wheel above the rail head while passing over nascere the intersection, thus preventing the shock due to the treads of the Wheels passing over the interrupted head surfaces, and a :ferrous metal base Cast around said rails at their intersection after they are assembled te se' cure said. rails together.

2. A railway track structure comprising, in combination, intersecting rolled steel rails of the grooved rail type, having a tiangeway for the reception of a Wheel ilange, Said rails being arranged with their inner ends spaced an appreciabie distance apart, a body of ferrous metal cast around the innerends of said rails to secure them together, an

alloy steel center Wear plate'cured in po-4 sition in said cast metal portion, and connecting said rails, said plate being provided with flangeways connecting with the flangen Ways of said rails and being characterized by being composed of an alloy capable of being successfully built up by Weiding b the deposit electrode or other suitable wel ing process when the Wearing parts become Worn under the action of wheel traffic, and said angeways having their floors tapered.'

down towards the extreme ends to the noi'-,

maly depth of the groove in the connecting railf so as to provide a fioor elevation through the intersection which will engage the iiange of a Wheel passing through-the intersection and raise the, tread porti-on of: the Wheel abovesthe heads of the structure While passing over the intersection.

In testimony whereof, l have hereunto set my hand.

CARROLL BURTON

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