US1629372A - Track structure - Google Patents

Description

v. ANGERER May 17, 1927.

TRACK STRUCTURE Filed March 10, 1926 4 Sheets-Sheet 1 May 1927' v. ANGERER TRACK STRUCTURE 4 Sheets-Shei 2 Filed March 10, 1926 Zlnuentoz /c 7-0/9 /7/VGE/QE/ May 17,1927. 1,629,372

V. ANGERER TRACK STRUCTURE Filed March I0. 1926 4 Sheets-Sheet 5 May 1927' v. ANGERER TRACK STRUCTURE Filed March 10. 1926 v 4 Sheets-Sheet 4 Patented May 17 1927.

UNITED STATES :PATENT forms.

VICTOR ANGEBER, OF BIDLEY PARK, PENNSYLVANIA, ASSIGNOBTO WILLIAM WEAR- I TON JR. & COMPANY, INCORPORATED, OF EASTON, FENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA.

v TRACK STRUCTURE.

My invention relates moreparticularly to railway frogs or crossings of the integral or sohd casting type. Frogs of this type usually are constructed of man anese steel because of the well known shoe and wear resisting properties that metal exhibits in sound structures properly heat treated. But, manganese steel offers serious foundry difficulties and heat treating problems wherever there are unequal sections of metal. Sometimes the casting contains unsound metal although such is not discernible; and even in the case of sound castings the metal may be so unbalanced with respect to excessive massing and thick and thin sections as to make it practically im ossible to develop, by any standard metho of heat treatment, the natural characteristic of strength combined with hardness and toughness. These problems are especially acute in the case of solid frogs or crossings which stand- ,ard engineerin authority and practice demand shall be definitely reinforced in order properly to, take care of the enormous shock a and load strains imposed upon them under traffic conditions.

My invention was devised with a twofold purpose, to wit,to provide a frog or crossing so inherently strong as not' only to be able to withstand ordinary traflic conditions, but which shall be possessed of a large margin of safety in order efficiently to resist abnormal shock and load conditions; and to provide a frog construction which, while complying with standard requirements, will 'materially lessen foundry and heat treating dificulties.

The nature of that part of my invention which considers the construction from a traffic viewpoint consists in providing a solid or integral frog or crossing which shall be amply reinforced throughout and particularly in the areas heretofore vulnerable to bending or breaking strains, to wit, in the narrow section of the frogs ator in front of the point and in the line of flangeway, under circumstances where the ends of the arms which receive the initial load orshock are permitted to overhang the ties or are m otherwise inadequately supported; in ob- Application filed March 10, 1926. Serial ll'o.'93,645.

viating vulnerable points by a system of re- I inforcing which will uniformly transmit all bending or breaking strains directly to thesupporting substructure; and in providing for great vertical strength by employing a central body member of. such nature that I am enabled to use a solid orintact base and so present to the supporting substructure a flush bearmg .area of considerable extent well calculatedv to uniformly distribute the shock and load forces solicited under traflic conditions, the vertical sustaining member or body being nevertheless so designed as to ,avoicl massing of metal or unequal sections of metal.

In the accompanying drawings, forming a part hereof,

. Figure 1 is a broken plan view of acrossing contamingmy improvements.

F g. 2 is a plan view of a frog or crossing intersection with the head portion away to disclose the method of reinforcement. Fig. 3 is a section on line 3-3 of Fig; 2.

4 is a section on line 4-4 of Fig. 2.

Fig. 5 is a side elevational detail showing the shafts or passageways leading to the clear.

I 6 is a section on line 6'6 of Fig. 2.

Fig. 7 is a section on line 7'7 of Fig. 2.

F1g. 8 i's a broken plan, disclosing a modification. a

Fig. 9 is a section on line 99 of Fig. 8.

' Fig. 10 is a section on line 10-10 of Fig, 8.

In the practice of the invention and with reference to Figs. 1 to 7, I provide an integral or' solid casting 5, whose head section 6 may have any desired angleof intersecting grooves or flangeways defined by guard rail heads 7 and tread surfaces 8.'

I In carrying out the principle of my invention of providing great strength transversely of the point and of the plane of the grooves at the point of intersection, the head portion below and beyond the area of' intersection is continuously supported by a system of transversely ranging parallel walls 9, which integrally tie the head to the base 10. The intersection supports or riserwalls 9 are alternated or spaced by shafts or passageways 11, which are wholly-umobstructed and extend to the clear at the sides of the casting, as aptly shown in Fig. 5. The base 10 is characterized by its solid flat bottom 12, whereby it is enabled to take a flush bearing of great area on the supporting timbers, ties, or substructure, and thus avoid cutting into the same. Heretofore, it has been customary if not necessar to use plates to guard against this hazar The flush bearing manifestly also enables the base to better withstand the forces which by the very nature of the design, it is suffered to solicit.

,The symmetrical assemblage of parallel walls 9 and shafts 11, when viewed in section, is of general grid form. It has the distinct merit that it affords a continuous support for the head at and sufliciently beyond the point of intersection so that the structure cannot be dished by the jump and blow of, for example, a locomotive wheel. It possesses the added advantage of entire freedom from blind cavities, passages and the like, the presence of which is conducive to the trapping of steam in quenching following heat treatment, which, as is well known, is sometimes followed by unsatisfactory results. Even in the box sections 13 which join the arms 14 to the main body of the casting, there is open communication at all times for the free circulation of fluids, in heat treatment, through the openings 15 in the transverse ties or reinforcements 16.

The crossing intersection illustrated in Figs. 8, 9, and 10, is a continuation or carrying forward of the principle of my invention. In this embodiment, the side walls 17 present no openings, and, hence, serve to screen the grid support. They contribute to the establishment of corridors 18 common to the shafts or passageways 19 and in open communication with the endwise ranging shell structures 20. Obviously, the intervention of the corridors makes the risers or partitions 21 separate and distinct units clear of each other and clear of the side walls, yet, nevertheless, operating to direct all forces, incidental to load and shock, to the solid and flush supported base. And the corridors insure an uninterrupted source of communication so as to provide for free passage of the cooling medium between the vertical supporting walls 21.

Having described my invention, I claim 1. A frog or crossing structure of the integral type whereof the head portion below and beyond the area of intersection is continuously supported by a multiple of supports unifying the top and bottom and free from end juncture.

2. A frog or crossing structure of the integral type whereof the head portion below and beyond the area of intersection'is continuously supported by spaced supports unifying the top and bottom and free from end ties.

whereof the head is tied to the base by a grid open to continuous fluid flow in heat treatment.

4. A track structure of the solid cast type whereof the head is tied to the base by a grid whose spaced intervals are directed laterally.

5. A track structure of the solidcast type havin a head with intersecting flangewa s, a solid base, and column supports integrally joining the head and base and providing an unobstructed passage for heating gases and a cooling medium in heat treatment.

6. A track structure of the solid cast type with intersecting treads and flangeways, sald structure having arms of shell form and having an intermediate supportin body with walled passages open at the en s.

7. A track structure of the solid cast type with intersecting treads and flangeways and whereof the intersection is reinforced by a main' body of metal terminating in a solid base and having conduits for unobstructed fluid flow.

3. A track structure of the solid cast type 8. A track structure of the solid cast type with intersecting treads and flangeways, said structure having a supporting block beneath the intersection, said block having through conduits.

9. A track structure of the solid cast type with intersecting treads and flangeways, said structure having a supporting block beneath the intersection, said block having crosswise ranging conduits open at both ends.

10. A track structure of the solid cast type with intersecting treads and flangeways, said structure having a supporting block beneath the intersection, said block having crosswise ranging conduits and corridors common to the conduits.

11. A track structure of the solid cast type with intersecting treads and flangeways, said structure having hollow arms and having a gion of intersection with cross partitions joining the head and base and forming through conduits.

13. A track structure of the solid cast type with intersecting treads and flangeways, said structure having a solid base below the region of intersection and presenting a broad flat bearing surface adapted and arranged for direct support by the substructurev cross partitions joining the head to the base and forming through conduits, and corridors immediately adjoming the sides of the casting and establishin an unbroken line of communication wit the exterior of the casting 14. A track structure of the solid cest type with intersecting treads and flangeways, sald structure having its head section reinforced 8 by a 'main body'portion seid body portion being subdivided to pr ovide for substantially uniform distribution of metal and having open conduits to admit of unobstructed fluid flow.

In testimony whereof I afiix my signature:

VICTOR ANGERER.

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