US1653252A - Railway crossing - Google Patents

Description

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N. J. CAMPBELL RAILWAY CROSSING Filed Oct. 18D 1926 f fly over onehalf of my crossing and showing Patented 20, 1 927.

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` NEAL J. CAMPBELL, F ST. LOUIS., MISSUlJlRfL` RAILWAY CROSSING.

Application med October 18, 1926. Serial No. 142,323.

My invention relates tol improvementsin railway crossings,l and has for its primary object a railway crossing which is smooth so as to eliminate bumps and which can be 6 readily removed in cases of track repair* withoutdestroying the crossing.

A further object is to construct a 'railway crossing which is composed of sections, the sectionsI being of relatively light weight so 10 that a large crew is not necessary to handle the Sections. In fact.` each section is suciently light that it can be handled by one man.

having as their base deformed or corrugated sheet meta-1 plates, the plates being deformed 'or corrugated in such a manner that they can n:withstand a great amount of pressure without any appreciable or permanent sag.

A still further object is to construct a railway crossing whiclrisconstructed of sections having a corrugated sheet metal base and on which a smooth surface vis secured.` This surface may be of asphalt or analogous mateyrial so 'as to render the traiiic surface of the crossing very smooth.

Heretoforerailway crossings werev either of the board construction or of heavy metal ofstripsywhich require considerable labor to remove when rails were replaced,.or when any re air ofthe track was necessary.

' Wit my improvement, very litt e -physical labor' will be necessa to handle the vari- 36 ous sections ofthe crossing'and at. the same time the crossing. will be rigid enough to carry any loads imposed upon it.

M crossing is so constructed that 1t will o not interfere in any manner with the auto- 40 matic block signals or crossing signals by z short circuiting and therefore, is not limited in itsuse to anyv particular type of railwaycrossing.

In the drawings: Fig.l 1 is a cross section illustrating slightthe manner iny whichthe same is placed in position;

Fig. 2 is a. top plan view of Fig. 1 with a portion of the surfacing broken away show-` A still further object is to construct a rail-- 1 5 way crossing which ismade up of sections Fig. 4 is a similar view showing another view of deformation; and

Fig. 5 is a similar view showing still another form of deformation.

In the construction of my device I employ a pluralityl of ties 6 on 'which are secured rails 7. These rails are securedby means of spikes as is well known and 'the rails are arranged .in parallel pairs.v 8. represents the ball of the rail a d 9 the base flange. Intermediate the paraillel rails and resting on the ties 6 isa support 10 which r is preferably a 'wooden beam althoughaif desired,` other maf terial may-be used.- If a wooden beam is used, angle irons 11 are placed ra'long Yeach'` of its upper longitudinal edges as illustrated in Fig. 1. The purpose of these aiigle irons preferably by corrugating, some forms of deformation have been illustrated in Figs. 3, 4 and 5,- although I do not desire vto limit )myself to said specific forms. The object ofdeforming or corrugating the plate is to add to its strength, that is to enable it to re-4 sist bending under heavy loads so that a relatively light material can be used for the base without .sacrificing its supporting strength. One end of` each lof the base plates is provided .with a lsupport 13 which. is adapt-ed to rest on the base Hange 9 and fit underneath the ball 8 of each rail and su ort thatJ end ofthe plate adjacent the rall.

he other end of the plate is Supported on angle iron 14 secured t0 their upper surface .f

and spaced apart from and parallel to the rail 8 so as to leave a passageway for the flange of the Wheel. The base plates,which are located on the outside of the rail, do not' have this angle or stop because it is unnecessary' since the surface, which is applied on the ba'se, can extend' over to the rail whereas in the sections between the rails, it is essential that a stop, such as the angle iron 14, be employed to keep the surface from creeping over to the rail and interfering with the passage of the wheel flange.,

The sections interposed between the rails are separated by means of an insulat ing bar which is preferably composed of wood. The purpose of this is to insulate or separate the base sections 12. This is essential when a block system or an automatic crossing signal for railroads is used so as to plates when a vehicle passes thereover. Thev surface 16 may be either molded directly on the base plate or it may be pre-cast and secured thereon in any well known manner. The space formed between adjacent sections between the tracks, which is 'occasioned by the insulating strip 15, may be left open or it may be filled with pitch4 or other material,

or if desired the insulating strip may extend completely up tothe road surface. The 'ends of the section removed from the rails are secured in any well known manner as for instance, by means of spikes 17 where a wooden support is used, and by means of bolts or screws where a metallic support is used. I do not however desire to limit myself to any particular means for securing these ends because, as by wedging them in tightly, it may be possible to eliminate the securing meansaltogether. The ends of the sections on the outside of the rails may be either constructed in the manner illustrated in Fig. l or the base plate vonly may be inserted and the road surface carried there* over completely to the rail without departing from the spirit of my invention. Where securing means for the sections, such as illustrated in Fig. 1 are used, it is preferable to place washers 18 underneath the heads of the bolts or spikes to prevent them from working down through the surface especiall when asphalt is used thereby preventingt e raising up of the ends. However it is my opinion that by wedging these plates sulfi- `a smooth crossing surface and whic ciently tight, that is by having their meeting edges up-tilted and using pressure to force them 'in place, the fastening means can be dispensed with.v

.-The essential feature of my device is a railway crossing having a deformed or corrugated sheet metal base bridging the space between the rails so arranged as to resent base has its ends adjacent the rail provided with a support which rests on the base llange'of the rail and which contacts with the underthat portion of the crossing adjacent the rail will move up andl down with the up and down movement of the rail.`

Heretofore with the ordinary crossings it frequently happened that the base flange of the rail would mash its way down into the tie and thussink below the road surface, leaving a'bump, or otherwise the road surface would sink and leave the rail projecting above it. By my construction, however, this is eliminated because there is no possibility of the road surface sinking, nor is there any possible chance of the rail movin up and down without carrying the edge o the crossing adjacent the rail up and down with it.

I may, if desired, eliminate the surfacing material from the plates without departing from the spirit of my invention as it may be desirable for economys sake, or where the crossing is used on gravel roads, to eliminate the surfacing.

Having fully described my invention, what I claim is:

1. A railway crossing comprisiiig a p1ur' ality of corrugated sheet metal lates, means for supporting one end .of said lates between the base flange and underside ofthe ball of a rail, and means parallel to said rail for supporting the opposite end of said plates. i

2. A railway crossing com rising a corrugated sheet meta-l plate, and aving one end thereof supported between the base flange and underside of the ball of a rail, means for supporting the opposite end of said plate, and surfacing material located on said p ate.

3.' A railway crossing comprising a corrugated plate, having .a downturned end located between and contacting with the base flange and underside of the ball of a. rail for supporting said plate, means parallel t0 said rail for supporting the opposite end of said plate, and surfacing material covering a predetermined face of said'plate.

4. A railway crossing comprising corrugated sheet metal plates provided with an integral support for one end of said plates and fitting snugly betweenthe base ange `.and underside ofthe ball of a rail, means turned and adapted f to contact with theI underside of the ball 'of a rail and the upper side of its base flange, 'and means for'supporting the opposite. end of said plate.

6. A railway crossing comprisin a corru-` gated sheet metalplate, anintegra support portion of the top sur-v i formed on one end of said pate by bending said end downward, said support adapted to be forced between the. underside of the ball Aof a rail andits base flange for supportin said .plate and causing it to move up and down with said rail, means for supporting the opposite end of said plate, and means for securing said lastmentioned end to its support.

7. A railway crossing comprising a deformed sheet metal plate, a support formed on one end of said late and ada ted to extend from the un erside of the all of a rail to its base flange, means for supporting .the opposite end of said plate, and surtherein, a su port carried by one end of 20 said plate an adapted to extend from the underside of the ball of,a-.rai1 to its base flange, means for supporting the opposite lend of said plate, means for securing said last mentioned end to said support, and 25 surfacing material covering a predetermined portion of the top vsurface of said late.

In testimony whereof I have a xed my signature.

NEAL J. CAMPBELL.

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