US1359929A - Railway-crossing - Google Patents

Description

P. G. sT'vENsoN.

RAILWAY CROSSING. APPLICATION FILED MAR. 22. 1920.

v Patented Nov. 23, 1920.

INVENTOR .WITNESS STEVENSON.

RALLWAY CROSSING. l APPLICATION FILED MAR. 22. 1920.

` Pantd Nov. 23, 1920.v

2 SHEETS-SHEET 2.

INVENTOI?4 WITNESS ATTORNEYS angle than 90; .I

V andthe car wheels,

section of the Vwith. ja device showingthe relative positif narran stares Parent carica.

PETER G. srEvENsoN'or rnrinnnnrnre, PENNsYLvANA, SSIGNB or THREE? A* TnN'rHs 'ro FRANCIS, J. niULGi-tavn, 0

i PHILAnnLrnIn; PENNSYLVANIA,` ANDl i' i THREE-TENTHS TO JOHN J. ELTON, F YORK,V N.'Y. Y

RAILWAY-CROSSING.

Application filed March 22,

To all whom t may concern:

Be it known that L Pnrnn G. SrnvnNsoN, a subject of theKingof Great Britain and a resident of the city of Philadelphia, county of ljhiladelphia, State of Pennsylvania, have invented certain new and useiul Improvements in Railway-Crossings, kof which the foliowing is a specification, reference being had to the accompanying drawings.

My invention `relates to a new and useful device adapted to be used atl railway cross-L ingsv where the tracks cross at an angle to each other.

' Among the objects of my invention is to provide new and useful device adaptedto` lbe connected to the crossing rails of the track whereby the noise and the jarring action usually accompanying the travel of a car at the crossing will lbe substantially eliminated or avoided.'

Another object of my invention is to pron videl a device which will operate and maintain the wheeis of the car at I'the same Alevel as the rail surface whenpassing across .the flange groove of a transverse rail. y

Another .object of my invention is to provide such devicewith meansoperable byy the car itself andto actas an evener device.

Other objects of my invention Awill more fully appearl in the'following.description and upon the accompanying drawing. z

`Refe`rringto the drawing; l' y y 'Figufe l is. a t0n planiviev 0f .the devies;

Fig. 2 is a bottom view with parts Vshown insection; Fig. 3 fis a plan view with parts shown in device adapted for useY with tracks that cross each other ata different Fiel is a fragmentary transverse. .Sea

of the evener members in respect to track ing 'wherein' the same reference characters are used :to parts in the several views Ihave shownthe v 1 larv or square;

designate the corresponding device mentioned above comprising a casting provided with a top plate `l, side walls 2 and lcenter legs 3 integrally cast with each other. The casting vis of general rectanguhap'e with the leg portions 3 Specification of Letters Patent.

ieee. serial No. 367,769.

withtransverse slots 6 and 7 whereby said A members 4 and 5 are adapted to fit together' telescopically or the like and the' slots 6 and 7 are of the proper length to permit a certain amount of relative movement between the evener members l and 5;

Between the side wall 2 and the member 3 on each sideof the castingis located a lever 8 mounted upon a pivot pin 9 sup ported at oneend thereof in abearing lOin a side wall 2 and at the otherv end thereof in a bearing` l1 in center member 3. The bearing members 1Q and 1 1 mav'be of'composition to provide a durable bearing for'thef pivot pini). The opposite ends of the lever 8 project into apertures tively in the evener members el and 5 whereby movement may be impartedV to the"latter by th'eends ofsaid levers l ofthe lever 8 movefsupwardlyj and lthe other end 1 5 moves downwardly the' evener mm ber 4 ywill be raised bythe vend2111.5 and the evener member .5 will be lowered by the end 15, L i, I The c'astingis located in a recess provided in the' rofad bed between the endsv of the alined rails or 'sections 16 a nd vvhichare cut, to' provide suitable space tliereb'etwepllii I?. the' inclusion O-, the device formi Subjefareattef of .mi rvtiibn'... TheV ine .es .Sheii'i 'Square form io'n and is dapted'tobe Yplace PatentedN ov. 273,

i/Vhen an end 14 l of the' lcasting'inv al'in'ement with said 'rails and withk another diagonal at 'right angles to 'the r'stA inV alineme'ntl with transverse rails 18and 19. Tor the outer diagonal surface of the side walls` 2 'of the casting'are v 'tien as. of the channels 2o in Contact lwith the g surface for the tire of the car wheel. Adjaouter surface of the side wall 2 and 'opposite the pivot pin 9, maintaining the latter al displace members 2 and 3, spans the space between the ends of the transverse rails and is provided with traction portions 24 and 25 in exact alinement with the traction surface of the rails to form a vcontinuing supporting cent to said surfaces 24 and 25 are provided slots 26 and 27 respectively indirect alinement with the flange-grooves of .the corresponding track rails so that the wheel of the car 'will ride from the track across the plate l with the latter acting as an extension of the rail. TNithin the slots 26 and 27 are disposed the evener members 6 and 7 with the top surfaoesthereof provided with a hori Zontal portion 28 and aninclined portion 29 adapted to be engaged with the flange ot the car wheel traveling in the direction thereof but Awith the flat portion 28 thereof adapted to be contactedby the tire 30 of the oar wheel when traveling transversely thereof. The portion 28 when in its uppermost position is upon the same level as the surfaces 24 and 25 so that the wheel tire in crossing from one section thereof to the other will ride upon the surface 28 without the usual dropping of the wheel into the groove of the cross rail, making a noise and unduly vibrating the car, the flange of the wheel operating upon the other evener member to maintain it in lowered position.

To accomplish the above result the central sections V3 are provided with downwardly converginginclined slots 34 and 35 and the flange contacting members 6 and 7 provided on each side thereof with rigid or integral projections 36 and 37 adapted to slide in slots 34 and projections 38 and 39 adapted to slide in the slots'.- As a member 6 or 7 is forced downwardly, the riding of the projections 36 and 87 or.88 and 39 in the slots 34 or 35'will cause a simultaneous relative longitudinal movement of the member 6 or 7 with respect to the members 4 or 5 along the dove- tail grooves 32 or 33 thereof. YThe downward movement of the members 4 or 5 will cause the other member 7 or 6., by reason of the dove-tail connection therebetween to` draw the same downwardly, at the same time causing the lateral projections 38 and 39 or 36 and 37, as the case may be, to slide in the slots 35 or V34 respectively thereby causing the members 7 or 6 to approach each other. A reverse movement will causeV the same to separate when the flange of a wheel. travels in a cross-,direction and operates to .lower the transverse evener member.

The inner ends of the members 6 and 7 are so cut with the bevels 40 and 4lV so that as members 6 are approaching each other the members 7 are receding and the bevels permit the latter to clear the former as fast as the former advance or approach each other.

n 19'. ne mem ers are s ow in I F g 1 tl bv 6 h n lowered position withthe ends thereof1 in Contact at corresponding to and in alinement with the groove of the track upon which the wheel is traveling so that the flange 31 of the Wheel will depress said evener member, as for ei;- ample, as is shown in Fig. 5. Said member will by its downward movement vforce the endsof the lever 8 projecting inthe apen tures thereof downwardly thereby causing the opposite ends of said levers to move up- Inasmuch as the opposite ends of wardly. the levers are projecting into apertures in the transverse evener member the latter will be caused to rise in the transverse slot of the device so as to bring the surface 28 thereof into horizontal level even with the surface upon which the car wheel tire is traveling so that as the wheel crosses the raised evener member on the surf-ace 28 it will -do so smoothly without dropping into the groove of the transverse track, the Yflange 31 at the same time continuing to ride on the first.

Ywg-stationed evener member holding it in its lowered position so that the raised evener member will be maintainedin its uppermost l J position.

In Fig. 3 I have Yshown a device `adapted for use with rails that ,are disposed at a different angle than 90. V"The construction, however, is similar to that above described with the exception thatl the ends of the levers 8 instead of abutting each other -in the' apertures l2 and 13 of the evener mem-'- bers 4 and 5 are disposed 'in overlapped adjacent relation. ,This construction is followed in order that'the levers may be Vof equal size Yand of equal'lever eife'ct, the moments of force being'equal about each pivot y pin 9 as well as that the movement of the ends of said levers will also be equal .where` by the evener members may berc'aused to move with a balanced action at both ends Y thereof and to an equal extent, or in other words, when one of the evener members is lowered the other will be raised to a corj responding equal extent Vand vice versa. It

will be observed that the radial distances from the aXis of the pivot pin 9to theeffective point of contact between the end' of the lever 8 and the evener member are equal for all levers shown. The operation of this device is the same as that described above in connection with Figs. l, 2, Lland 5.

iVliile I have herein described and shown upon the drawing two embodiments of my invention it 1s to be understood., however,

that my invention is not to be limited to the particular details shown and described but that the same comprehends other devices and'constructions that do not depart from the spirit of my invention and the scope of the appended claims. l

Having thus described myV invention what I claim as new and desire to protect by Letters Patent of the United' States is:

l. In a railway track crossing, the combination of a member connected to the ends of the transverse rails and provided with -ransverse slots over which wheels of a car are adapted to travel, evener members in the slots of said member, levers pivotally mounted between and connected to the ends Y of said evener members whereby the downward movement of one of said evener members will move said levers and cause an v upward movement of the other evener members in said slots, and bring the upper surface of the upwardly moved evener member in coincidence with the top surface ofthe tracks upon which a car wheel is traveling.

2. In a railway crossing, the combination of a member connected to theends of the transverse rails vand provided with transverse slots in which the flanges of car wheels are adapted to travel, evener members in said slots, levers pivotally mounted betweenV and connectedv to the ends of said evener members, whereby the engagement of said flanges with one of said' evener members will depress the saine and move said levers causing the other evener member to move the top surface of the tracks upon Vwhich, the car wheel is traveling.

3. In a railway crossing, the combination of a member connected to the .ends of the transverse Vrails and provided withtransverse slotsin vwhich the flanges of carwheels are adapted to travel, .evener members in said slots, levers pivotally mounted between and connected to the vends of said evener members, whereby the engagementof said will depress the same and movesaid `levers to simultaneously elevate the otherV evenermember into the plane of the top surface of said rails where it is rigidly retained during` vsaid, engagement of said flanges with said depressed evener member.

.simultaneously upwardly into .-the'plane of In witness whereof, I have hereunto setV my hand this 20 day of March, 1920.V

PETERV G. STEVENSon".` *i 'i

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