US982315A - Resilient support for railway-tracks. - Google Patents

Description

H.' H. TUNIS.l RBSILIENT SUPPORT FORBAILWAY TRACKS.

APPLICATION FILED SBPT.19,'1908.

IN VEN TOR.

A TTORNE YS HOWARD H. TUNIS, OF BALTIMORE, MARYLAND, ASSIGNOR TO AMERICAN MONORAIL COMPANY, A CORPORATION OF SOUTH DAKOTA.

RESILIENT SUPPORT FOR RAILWAY-TRACKS.

To all whom it may concern:

Be it known that I, HOWARD H. TUNIS, citizen of the United States of America, residing at the city of Baltimore, State of Maryland, have invented certain new and useful Improvements in Resilient Supports for Railway-Tracks, of which the following is a specication.

This invention relates to supports for traction rails and particularly to such supports of a type which may be used to advantage in a monorail system.

The device in which my invention is embodied and in connection with which it has been reduced to practice consists of a continuous resilient support for a rail. Concrete blocks placed at intervals receive the rail and the blocks are embedded in suitable ballasting, as rubble, crushed stone, or the like. This material fills the spaces between and beneath the blocks and a resilient binder, as pitch, coal tar, asphalt, or the equivalent, is melted and poured on the ballast. The pitch flows between the particles of stone and engages the `faces of the concrete blocks and when it hardens forms with the blocks and ballast a continuous body which is sufficiently elastic to allow the track to settle appreciably under the weight of the train, without destroying the bond between the integral parts of the rail foundation. The concrete blocks are preferably formed with a plurality of flat pedestals on which the rail rests, and between these pedestals is one having inclined upper surfaces to receive the fastening means, as hereinafter described. Tension rods embedded in the body of each block extend transversely of the rail under the pedestals which support the rail, and bolts embedded in the material project from the blocks adjacent the rail. These bolts are provided at their' extremities with members overlying the lower fianges of the rail, whereby the rail is held in position. As shown, these members consist of plates resting at one end on the inclined surface of the middle pedestal which is designed to conform to the angle of the plates, and at the other end on the flange. The plates are pierced near the center' and the bolts extend through the holes. Nuts on the ends of the bolts hold the plates in position. These features may be used either in combination or separately within the scope of my invention.

Specification of Letters Patent.

Application filed September 19, 1908.

Patented Jan. 24,1911.

Serial No. 453,859.

The accompanying drawings illustrate an embodiment of my invent-ion.

Figure l is a transverse cross-section of the road bed of a monorail system, showing a concrete block in elevation and the ballast in section. Fig. 2 is a fragmentary vertical section on the line 2-2 of Fig. l.

The body of the road bed is formed of ballast l composed of crushed stone, rubble or other suitable material. The elongated blocks 2 are placed thereon transversely to the rail and at intervals substantially equal to those ordinarily occurring between wooden ties. The blocks are embedded in the rubble to a point near their upper surface, as shown, and melted pitch, tar, or other congealable liquid which will harden to form a suitable resilient binder 3 is poured on the ballast, so that it flows between the particles thereof, engaging the surfaces of the concrete blocks. The binder, with the blocks and the ballast, forms a continuous bed which has sufficient elasticity to allow the track to settle appreciably under the weight of the train, without destroying the bond between the integral parts of the rail foundation.

The blocks of concrete are provided on their upper surfaces with fiat wooden pedestals 4 and 5 near the longitudinal center of the blocks and spaced laterally thereon at sufcient distances to allow for the construction to be described. Between the flat pedestals t and 5 is a pedestal 6 having the outer portions of its upper surface inclined downward and out-ward at 14 at a slight angle, possibly 9.50, to the horizontal. The fail 7 is placed on the blocks resting on the pedestals 4 and 5 near their centers. The pedestal G is of a slightly less height than those on each side of it, so that it is out of Contact with the rail.

Directly beneath the pedestals 4rand 5, extending transversely to the track and embedded in the concrete, are tension rods S which are adapted to take up the stress of tension in the lower portion of the block transmitted to it from the pedestal directly above. Bolts 9 and 10 spaced a distance longitudinally of the blocks somewhat in excess of the width of the lower flange 11 of the rail, are placed in or near the transverse centers of the blocks and embedded therein, inclined outward from the rail at a slight angle to the vertical. These bolts project from the upper surface of the middle ped estal 6 on each side of the rail flange 11. Fastening plates 12, shown as of oblong outline pierced at their center, are placed with one end resting on the lower flange l1 of the rail and their otherV extremity on the inclined portion l/l of the pedestal 6, the projecting extremity of a bolt passing through the aperture in each plate. to place the plates under the desired tension, whereby the rail is pressed against the block and secured against motion relatively thereto.

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

l. A supporting block for a traction rail composed of concrete having a pedestal t0 receive the rail, and a second pedestal of less height than the first having an inclined upper surface, fastening plates resting at one Nuts l5 serveV an inclined face of the second pedestal, and v means for securing the plates to the block.

2. A supporting block for a traction rail,

a pedestal on the block to support the rail, the block having inclined surfaces adjacent the rail, bolts projecting from the block between the inclined surfaces and the rail, plates resting at one extremity on the lower flange of the rail and at the other extremity engaging the inclined surfaces, each apertured to receive the projecting extremity of the bolt, and means for securing each plate to a bolt whereby it is pressed against the flange and the surface of the block.

Signed by me at Baltimore,y Maryland, this 14th day of September 1908.

HOWARD H. TUNIS. lVitnesses EDWARD L. BAsH, Lal-l. LATHAM.

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