US1249981A

US1249981A - Silent railway-crossing.

Info

Publication number: US1249981A
Application number: US15364817A
Authority: US
Inventors: Sidney Richardson Morris Malloch
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-03-09
Filing date: 1917-03-09
Publication date: 1917-12-11
Anticipated expiration: 1934-12-11

Description

s. R. M. MALLUCH.

SILENT RAILWAY CROSSING. APPLICATION FILED AIAR- 9.1917.

' Patented Dec. 11, 1917.

2 SHEETS-SHEET I S. R. M. MALILOCH. I

- suuam RAILWAY cnossme,

Arrucmlbu IHLAED MAR. 9. i917.

. PatengedDec. 11,1917. 2 SHEETS-SHEET 2 Lzawsi.

was a fiILENT RAILVIAY-CROSSING.

Specification of Letters Patent. Patent ed Dec. 11%1'2'.

. Application filed March a 1917. Serial No. 153,648.

To all whom it may concern:

Be it known that I, SIDNEY RICHARDSON Monnrs MALLOCH, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain useful Improvements in Silent Railway-Crossings, of which the following is a specification, reference being had therein to the accompanying drawing,

The present invention has reference enerally to improvements in that class 0 inventions known as rails and rail joints and more particularly relates to a railway crossing especially, though not necessarily, adapted for street cars.

It is the principal 'aim and object of the present invention to provide a crossing of such construction that when the rolling stock passes thereover, the action thereof will be silent, thus obviating jars, shocks and other noises usually incident to devices of this character.

It is an additional and equally important object of the present invention to provide a crossing insert cast in a single piece for engagement with the correspondingly formed portions of a track crossing consisting of intersecting rails constructed so that the in sort may be readily fitted thereovcr.

More particularly, the present invention includes the provision of novel means formed in the grooves in the rail head sections forming the insert for preventing the tread portions oft-he wheels of the rolling stock from striking the edges of the tread surfaces of the rail head sections at the intersections thereof, said means being designed so as to be engaged by the flanges of the wheels for supporting such tread portions without raising the tread portions of the wheels, thus permitting of the rollingstock to pass over the crossing without danger of jumping the track or causing any other damage and allowing the rolling stock to pass over the crossing without so slacking of the speed thereof.

The invention as a further improvement resides in the provision of novel means for fastening the crossinginsert to the crossing of the main track.

Among the other aims and objects of this invention may be recited the provision of a device of the character mentioned, with a view to compactness, and in which the number of parts are few, the construction simple,

the cost of production low and the etiiciency hi h.

ther objects as well as the nature, characteristic features and scope of this invention will be more readily apparent from the following description taken in. connection Fig. 1.

Fig. 3 is another section taken on line 3-3 of Fig. 1.

F igft is a it'ragmentary perspective of the invention.

Fig. 5 is an enlarged transverse section taken on line 5--5 of Fig. 1, a portion of the wheel of the rolling stock being-indicated.

F ig. 6 is an enlarged transverse section taken on line 6 of Fig. l, a portion of the wheel-of the rollmg stock being indicated.

Similar characters of reference are em: ployed in all of the above described views, to indicate corresponding parts.

Referring now, more particularly, to the accompanying drawings there is provided a crossing of the tea in track consisting of pairs of intersecting rails 1 and 2 having the head portions removed leaving only the webs as indicated by the numeral 3 and forming shoulders 4.

As intimated, a crossing insert has been from the respective ends of the head sections and also depending from the under surface at points substantially intermediate the ends thereof are other similarly formed spaced wings 11. The Wings 10 and 11 are straddled about the Web portions 3 of the main track crossing sothat the under surfaces of the head sections rest upon the upper surfaces of the Web port-ions, engagement being effected by bolts 12 which extend transversely through the registering openings and have their freeeuds engaged by nuts 13 for clamping the parts in the position shown in Fig. 1. It will be noted that the ends of the head sections are of such length that they abut the shoulders fl, this arrangement being illustrated in Fig. 2, consequently arranging the head sections 5 and 6 flush with the head or tread portions of the rails 1 and 2.

With a view toward obviating the noise usually occasioned when rolling stock passes over a crossing, ribs 14 are formed integral with the bottoms of the grooves and preferably have their upper surface arched and extend through-the portions of the head sections and also a distance beyond these points. The respective terminals of the ribs beyond the points of intersection are gradually inclined downwardly so as to meet the bottoms of the grooves. bviously the ribs are the width of the grooves and in effect are substantially raised portions, having a height equivalent to the usual space between the flange portions 16 of the wheels of the rolling stock and the bottom of the grooves 9, consequently preventing the tread portions 17 from engaging and knocking the intersecting head sections which extend across the head sections upon which the rolling stock is traveling. In other words the relation of the parts is such that the tread portion will be supported by the flange portions when passing over a crossing and this is due to the fact that the depth from the tread portions on the rails to the upper surface of the inserts is simliar to the depth of the wheel flanges. Obviously in cases of wheels the inclined surfaces 15 of the ribs cause the flanges 16 to I gradually engage the ribs as the rolling stock approaches the intersection of the head sections Without raising the tread portions 17, allowing the wheels to pass readily and noiselessly over the intersecting head sections without danger of jumping. Because of this incline it will also be appreciated that the motorman is not inconvenienced by slacking the speed of the street car or other vehiclefor the same to pass over the cr0ssing at a relatively high rate of speed. It may be understood, however, that by providing the insert in combination with the crossing of the main track, an efficient and oper able railway crossing is provided whereby practically all noise and jarring is obviated when rolling stock passes thereover.

In view of the foregoing remarks it is believed that a detailed description of the op eration is unnecessary. Likewise it is believed that the advantages of the invention will be readily apparent.

It will be understood that the foregoing description and accompanying drawings comprehend only the general and preferred embodiment of this invention and that various minor changes in detail of construction, proportion and arrangement of the parts may be made within the scope of the appended claims and without sacrificing any of the advantages of this invention.

Having thus fully described the invention, what is claimed is:

1. In a railway crossing, in combination with a crossing of the main track consisting of intersecting rail sections having the head portions removed providing shoulders beyond the points of intersection, a crossing insert cast in a single piece and consisting of intersecting rail head sections, tread portions formed on their upper surfaces adjacent their outer sides, flanges ofl'set on the adjacent inner surfaces and providing grooves therebetween which also intersect each other, means for removably yet rigidly connecting the head sections forming the insert to the main sections of the track so that the ends of the end sections abut the shoulders means formed integral with the bottom of the grooves and extending throughout the portions intermediate the points of intersection of the head sections and also a distance beyond these points thereby to support the flange portions of the wheels of the rolling stock Without raising the tread portions of and lie flush with the main track, and

the wheel as the rolling stock passes over the intersections.

2. In a railway crossing, in combination with a crossing of the main track consisting of intersecting rail sections having the head portions removed providing shoulders beyond the points of intersection, a crossing insert cast in a single piece and consisting of intersecting rail head sections, tread portions formed on their upper surfaces adjacent their outer sides, flanges offset 011 the adjacent inner surfaces and providing grooves therebetween which also intersect each other, spaced parallel wings integral with and depending from the under surfaces of the head sections for straddled engagement with the Web portions of the main rails left when the head portions are removed to permit of the head sections to rest on the web portions of the main rails, means for re niovably yet rigidly securing the Wings and web portions of the main rails together so that the ends of the head sections abut the shoulders of the main railsections, and ribs formed integral with the bottom of the grooves and extending throughout the portions of the head sections intermediate the points of intersection thereof and also a distance beyond those points and having the respective terminals gradually inclined 10 downwardly .to meet the bottoms of the grooves.

In testimony whereof I aflix my signature.

SIDNEY RICHARDSON MORRIS MALLOCIL