US767546A - Rail-joint. - Google Patents

Description

No. 767,546. V

30 MODEL.

PATENTED AUG. 16, 1904. J. T. DAVIS.

RAIL JOINT.

APPLICATION FILED 8231224, 1903.

wifiesses.

. J de/7707.

Patented August 16;, 1904.

vUNITED STATES PATENT OFFICE.

JOHN T. DAVIS, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE- HALF TO CHARLES R. ALLEN, OF SAN FRANCISCO, CALIFORNIA.

RAIL-JOINT.

SPECIFICATION forming part of Letters Patent No. 767,546, dated August 16, 1904.

Application filed September 24, 1903. Serial No. 174,467. (No model.)

To all whom it may concern:

Be it known that I, JOHN T. DAVIS, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Rail-Joints, of which the following is a specification.

My invention relates to rail-joints; and my object is to furnish a better support for the meeting ends of the rails, such support being of a somewhat elastic character, so as to modify and reduce to a great extent the battering action to which the ends of railway-rails are ordinarily subjected.

One part of my invention applies to a connecting bar or tongue inserted in slots formed in the ends of the webs of the rails and projecting outwardly on each side beneath the head. Another part of the invention refers to the combining with the rails and with such a bar of spring fish-plates resting upon the base and bolted together through the web.'

This description should be read in connection with the accompanying drawings, in which Figure 1 is a side elevation of the meeting ends of two rails with my device in position. Fig. 2 is a side elevation of the two rails. Fig. 3 is a plan View partly broken away. Fig. 4 is a cross-section on m m of Fig. 1. Fig. 5 is a cross-section on y 1/ of Fig. 1. Fig. 6 is a perspective of the connecting tongue or bar.

The rails l 1 meet in the usual way, and the ends of their webs just below the heads are cut out, so as to form slots 2 2, which register when the ends are brought together, as shown in Fig. 2. A connectingtongue, which is shown in detail in Fig. 6, is inserted in the registering slots of the rail ends. This tongue has a middle web 3 and two side bars 4A, which are prolonged beyond the ends of said web, as shown. The middle web 3 fits the slots in the rails, and the side bars 4 extend along the sides of the web beneath the head. The rails are thus connected together where they meet without interfering with their expansion and contraction. The tops of the side bars A are formed at the proper angles to fit the lower surfaces of the heads of the rails, as shown in Figs. 4: and 5. The middle web bears at top and bottom in the rail-slots, the side bars projecting outwardly, and these side bars are supported by the two elastic fish-plates 6 6. These plates are of steel and are formed on curves in cross-section, so as to have a certain amount of elasticity. Their bottoms rest upon and substantially fit the rail-bases, as shown. When in place, they are connected by bolts 7 which pass transversely through them and the web of the'rail. The drawing pressure caused by the turning up the nuts on the bolts produces a corresponding pressure exerted in both directions in the spring fishplates, and the upward pressure is exerted against the side bars of the connecting-tongue. Therefore at the meeting-point of the rails there is a slight but sufiicient degree of elasticity, producing an elastic support where the greatest amount of pounding, battering, and wearing occurs as the wheels of the trains pass'from rail to rail, and this is an evident advantage of my device.

I do not limit myself to the precise constructions, forms, or arrangements of the devices herein described, and shown in the drawings, as I desire to avail myself of all modifications and equivalents which comeproperly within the spirit of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In combination with two rails slotted at their meeting ends, a tongue or bar located in the slotted ends, elastic fish-plates between the rail-base and said tongue or bar, and bolts connecting sa'id fish-plates through the rail and adapted to put said fish-plates under springpressure.

2. Arail-joint comprising the meeting ends In testimony whereof I have aflixed my sigoftwo rails, having registering slots in their nature 1n presence of two Witnesses this 14th IO Webs, a tongue or bar set in said slots and proday of September, 1903. jecring sidewise beneath the heads of the rails, 5 elastic fish-plates beneath the heads of the JOHN DAVIS rails and the side projections of said tongue, Witnesses: and bolts connecting the fish-plates through L. W. SEELY,

the rails.

F. M. BURT.

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