US355778A - Metallic-cored post for street-railway tracks - Google Patents

Description

(No Model.)

A. J. MOXHAM- METALLIC 00331) POST FOR STREET RAILWAY TRACKS.

Patented Jan. 11, 1887.

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N. PETERS. Fhmo-Lilhographnr. wilhi c UNITED STATES PATENT Fries.

ARTHUR J. MoxHA or JOHNSTOWN,PENNSYLVANIA.

METALLIC-CORED POST FOR STREET-RAlLWfAY TRACKS.

SPECIFICATION forming part of Letters Patent No. 355,778, dated January 11, 1887.

\ Application filed February 19, 1886. Serial No. 192,498. (No model.)

To all whom it may concern:

Be it known that I, ARTHiIR J. MOXHAM,

' is fully set forth and illustrated in the following specification and accompanying drawings.

The object of the invention is to provide a series of metallic-cored posts at suitable intervals under the rails of the track, to which said rails or their chairs shall be secured in any suitable manner.

The invention consists of posts of concrete, or similarly-rammed materials, provided with cores of metal, as hereinafter described, and set forth in the claim.

In the accompanying drawings, Figure .1

shows in transverse sectiona rail mounted on a metallic core, through the intervention of angle-pieces forming a chair, with part of a tie rod secured through said core and chair. Fig. 2 shows a side View of Fig. 1. Fig.3 showsin cross-section the completed track and road-bed in which the track is set.

In said figures the several parts are indicated, respectively, by letters, as follows:

A indicates the rail; B, the metallic core, (shown in the drawings as consisting of a fiat metal bar, preferably of steel, of, say, six inches width for most of its length, one-quarter inch thick, and twenty-four inches length.) The upper part of said bar is sheared to a width of about four inches of its length for from, say, five to eight inches fromthe top, according as circumstances may demand. In reducing this portion of the bar from six to four inches in width, equal amounts of metal are sheared from each side of the bar. Said bar, being then grasped in suitable chocks, or by other suitable means, at the parts I) b, is twisted, either cold or hot, by any suitable mechanism, into a spiral shape, such as is shown in the several figures of the drawings.

Theletters G and D indicate two angle-pieces, of equal width with the upper and narrower portion of each spiral bar B, and so riveted to the same that the upper faces of saidanglepieces shall be flush with the upper edge of the spiral bar, the lower edges of said anglepieces extending downto the part b of said bar where the twist commences. It is of advantage to have said angle-pieces extend down to said twist, because such construction adds considerably to the vertical stiffness of the completed spiral bar or core.

The rivetse ecqnnect the angle-pieces to the spiral bar, and the tie-rod E connects the metallic-cores'on opposite sides of the track. The holes through which the tie-rod E passes are made somewhat larger than the diameter of said rod in order to allowfor small irregularities in the parts which will in practice be encountered in making connections of the several parts. The tie-rod E is connected to the metallic cores B by means of nuts on either side of theanglerpieces, O and D, as shown in Fig. 1, by which means said cores are brought and held to accurate gage. -The upper face of the angle-piece O is bent over in the form of a lip, which clamps one side of the lower flange of the rail A. The

.other side of said lower flange is held down by the hookbolt F, passing through the upper face of the angle-piece D, and secured to said face by means of a nutunder the lower side of said angle-piece,which screws hard up against said lower side, as shown in the drawings. In constructing the track the method of procedure is as follows: Holes H, Fig. 3, are excavated'at suitable intervals wherever the rails are to receive their support. These holes should be several inches larger in diameter than the diameter of the metal cores B. It is preferable that said holes should not exceed such depth as will bring the rail A to proper surface when the bottom edge of the metallic core rests upon the bottom of the hole. Longitndinal trenches of sufficient width to permit of the insertion and proper adjustment of the rails are then excavated between the holes H. At right angles to these trenches, and between each opposite and corresponding hole H, other trenches are also excavatedto permit of the insertion of the tie-rods E. The metallic cores B are then attached to two opposite rails at such distances apart as will kind of paving will permit, the exact point being determined by the class of paving, due regard being paid to having said rods sufficiently below the normal point of wear of the paving to keep them from exposure at the surface.

the tie-rods attached to each pair of opposite posts, the number of tie-rods used being dependent upon the natureand extent of the street traffic to which the track is subject.

I do not limit myself to the special shape of core shown, though the twisted form shown is preferred as the cheapest and most eflicient.

It is not in practice always necessary to have Said cores, however, may be made of castiron, or may be roughened in various ways instead of being twisted, or may have angular branches or bars extended at the sides like roots, to insure firm hold in the concrete posts or packing. I do not limit myself to any particular material for such posts or packing, as any approved metaling or ballast or rubble or concrete may be rammed and packed around the cores to act as posts therefor.

I am aware that it has been proposed to embed metal stringers for track-rails in concretelaid street-beds, and such I do not claim.

Having thus fully described my said cored posts, as of my invention I claim- In a street-railway track, a series of sunken metallic-cored posts made, substantially as described, of concrete, rubble, cement, or similar rammed material,for thereon securing the rails of the track, and tied together laterally at suitable intervals, substantially as and for the purposes set forth.

\ ARTHUR J. MOXHAM. Witnesses:

W. E. HOOPES,. A. MONTGOMERY.

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