US779471A - Railway-track structure. - Google Patents

Description

PATENTED JAN. 10,.1905.

G. M. ERVIN.

' RAILWAY TRACK STRUCTURE.

APPLICATION FILED JAN. 29, 1904.

2 SHEETSSHEET l.

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No. 779,471. PATENTED JAN. 10, 1905. G. M. ERVIN.

RAILWAY TRACK STRUCTURE.

APPLICATION FILED JAN. 29, 1904.

2 SHEETS-SHEET 2.

UN TED STATES Patented January 10, 1905.

PATENT OFFICE.

GEORGE M. ERVIN, OF JOHNSTOVVN, PENNSYLVANIA, ASSIGNOR TO THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

RAILWAY-TRACK STRUCTURE.

SPECIFICATION forming part of Letters Patent No. 779,471, datedJanuary 10, 1905. Application filed January 29, 1904. Serial No. 191,198.

To ctZl whom it may concern.-

Be it known that I, GEORGE M. ERVIN, of Johnstown, in the county of Oambria and State of Pennsylvania, have invented a new and useful Improvement in Railway-Track Structures, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, which form a part of this specification.

My invention has relation to certain new and useful improvements in railway-track structures-such as frogs, mates, crossings, and the like-in which two or more track-rails meet or intersect.

The object of my invention is to provide a rigid and durable structure in which the main and the intersecting or branch track portions can be formed in separate pieces and be readily assembled and as readily taken apart for renewals and repairs.

With this object in view my invention consists in the novel construction and combination of parts, all as hereinafter described, and pointed outin the appended claims, reference being had to the accompanying drawings, in which- Figure 1 is a plan view of a railroad-crossing embodying my invention; Fig. 2, an enlarged view of a portion of said crossing; Fig. 3, a View similar to Fig. 2, but showing a slightly-modified construction; Fig. 4, a plan view showing the invention applied to a frog or oblique crossing;,Fig. 5, a section on the line 5 5 of Fig. 1; Fig. 6, a section on the line 6 6 of Fig. 4, and Fig. 7 a section on the line 7 7 of Fig. 4.

In Figs. 1, 2, and 3 the letters A A designate the rail members of a steam-railway track, and B B the rail members of an intersecting track-in this case a street or tram way track. The rail members A A are each formed in an integral casting and each includes the main and bearing rail portions and the guardrail portions. In the construction shown in Figs. 1 and 2 the crossing-rails B are formed in sections and are also steel castings. In the construction shown in Fig. 3 the rail members B are pieces of rolled rail with a body B of steel cast about or otherwise secured to their inner end portions. 5

Where the rails B are to join the raiis A, the latter are cast with the lateral projections A, having seats a formed to receive the end portions B of the rails B. These seats a are formed with the lateral offset shoulders a, having underbeveled key-bearing surfaces facing similar bearing-surfaces on the portions B and adapted to seat divided keys O of the character described and claimed in my Patent No. 729,049, of May 26, 1903, and as shown in Fig. 7 of the present drawings. These keys, as more fully described in said patent, can be released by driving one member thereof from the surface of the structure, openings D being provided for this purpose, as shown in 5 Fig. 7. In assembling the structure the rail members B are engaged with the seats a, with their shouldered end portions fitting underneath the heads of the rail members A. The keys are then seated and melted spelter or like material is poured into the joint to insure a close fit and to retain the keys in place.

Figs- 4, 5, 6, and 7 show the invention applied to a frog or oblique crossing in which H H designate, respectively, the main and crossing rails, having the head portions it h. k designates the seats for the keys, H the keys, and I the spelter-filling. The construction is in all respects similar to that shown in Figs. 1 and 2 except as to the angle of intersection.

Structures in accordance with this invention can be shipped unassembled and the work of assembling can be done on the ground, thus greatly facilitating shipment. The described 8 5 construction also makes a very strong and rigid structure and one in which a broken or worn part may be readily removed and replaced. Joints may also be dispensed with in the rails B B between the rails A A. 9

I do not wish to limit myself to the precise details of construction and arrangement which I have herein shown and described, as changes may be made in the details thereof without departing from my invention. Having thus described my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. A railway-track structure consisting essentially of an integral casting forming the rail members of one track-rail, and provided With lateral projections formed with seats therein, and rail-member portions of the intersecting track, having headed ends fitting the said seats, and keys securing said intersecting track member in said seats and ar ranged to be released from the surface of the structure.

2. A railway-track structure, consisting essentiall y of an integral casting forming the rail members of one of the intersecting tracks, and provided with lateral projections formed with seats therein, and rail-member portions forming the intersecting track and having head portions engaging the said seats and detachably secured therein.

3. In a railway-track structure, the combination with an integral member forming one of the intersectingor joining rails and formed witlra lateral projection cored out to form a seat, of a branching 0r intersecting track member having a headed end portion fitting said seat, and keys driven between bearingsurfaees of the said end portions and of the seats and releasable by driving them from their upper ends.

In testimony whereof I have affixed my signature in presence of two witnesses.

GEO. M. ERVIN. lVitnesses:

LORETTO OCONNELL, H. V. SMITH.

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