US1445438A - Concrete railroad tie - Google Patents

Description

Feb. 13, 1923. 1,445,438

J. HOJNOWSKI CONCRETE RAILROAD TIE Filed May 5, 1922 @lllllllllll reb. 13, 1923.

Patented JAKOB Q 'N K 0F EKQO A, ISCONS cononnrn RAILROAD TIE.

Application filed May 5, 1922.

T0 aZZ whom it wm-g concern:

Be it known that I, JAKon Ho NowsKI, a citizen of Poland, residing at Nekoosa, in the county of Wood and State of Wisconsin, have invented certain new and useful Improvements in Concrete Railroad Ties, of which the following is a specification.

This invention relates to the ties or sleep? ers used to support the rails of railroad tracks, the invention having for an object ;to provide a novel form of railroad tie of cheap construction. I

More specifically speaking the invention has for an object to provide a simple form of reinforced concrete tie or sleeper and a novel arrangement of fastening means for securing the rails thereto.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims 1n Which the various novel features of the invention are more particularly set forth.

Fig. l of the drawings is a perspective view of a portion of a railroad track having the invention embodied therein.

Fig. 2 is a fragmentary longitudinal sec tional view, taken just beside one of the rails and showing one of the ties in transverse section.

Fig. 3 is a detail fragmentary perspective view of the reinforcing element of the tie.

Fig. 4: is a perspective view showing the tie partially completed.

Fig. 5 is a perspective view of the completed tie. I

Fig. 6 is another perspective vlew of the completed tie, showing the bottom face thereof.

Figs. 7, 8, 9 and 10 are detail perspective views of the different fastening bolts employed.

In the drawing the reference numeral 10 indicates a pair of track rails of ordinary construction which are supported by and secured to my improved ties. These ties are indicated generally at 11 and comprise concrete bodies reinforced by metal elements of sheet form. In Fig. 3 I have shown in detail a suitable form of metal reinforcing elements which consists of a sheet of wire mesh or expanded metal 12 bent to form a central horizontal element 12 which extends along the bottom part of the tie, being then bent to present a pair of angular or in- Serial No. 558,610.

verted L-shaped channels 13 whose inner adjacent sides 14 are formed by the marginal portions of the sheet, these marginal portions extending vertically of the finished tie midway between opposite sides thereof, the angular channeled elements, which are arranged back to back forming togethera completed structure of 'leform in cross section which is the form of the completed tie, the laterally projecting top flanges of the tie being indicated at 11".

In constructing the tie the reinforcing element 12 is bent to the proper shape and filled with concrete, suitable rods 18, which are afterwards withdrawn, being passed through the concrete, the holes in the concrete left when the rods are withdrawn being adapted to receive the fastening bolts, further reference to these details being presently made. The tie being formed is placed in suitable mold, which is packed with concrete in which the reinforcing element is embedded a suitable distance. As indie cated in Figs. 5 and 6 I may employ additional reinforcing strips 20 extending longitudinally of the tie within the channeled elements 13. As indicated at 20 in Fig. 6 the bottom face of the tie may be trans: versely corrugated.

Referring now to the means for securing the. rail to the tie, the rods 18 are suitably positioned and constructed to leave four transverse rows of holes in the tie, arranged in two pairs of rows which register with the edges of the base flanges of the rails, there being three holes in each row. The side holes, indicated at 22, extend vertically through the side flanges 11 at the top of the tie, while the centre holes, 23, are of parti-circular, curvature extending from the top ofthe tie outwardly through the side thereof under the flanges 11, the respective centre holes of adjacent rows being preferably curved in opposite directions to open at their lower ends at opposite sides of the tie. Through the side holes 22 are passed bolts 24 having T-heads 25 on their lower ends which engage under the flanges 11, and having nuts 26 threaded on their upper ends engaging over the base-flanges of the rails. Through the centre holes 23 are passed correspondingly curved bolts which may be of the t pe shown in Fig. 8 comprising curved s anks 27 having heads 28 on their lower ends adapted to engage the sides of the tie, and nuts 29 threaded on their upper ends adapted to bear on the base-flange of the rail. Or these bolts may be of the type shown in Fig. 9, comprising curved shanks 30 having laterally projected spike-heads 31 on their upper ends adapted to engage over the base-flanges of the rails, and having nuts 32 threaded on their lower ends and bearing on the sides of the tie.

In certain cases the tie may comprise a concrete body 33 of rectangular cross section with straight sides and provided with a reinforcement 34:, or it may comprise a body 35 having inwardly sloping sides 36. In connection, with this latter type of tie I may use the bolt shown in Fig. 10, comprising a straight shank 37 having a laterall projected spike head 38 on its upper en so positioned, or arranged at such an angle, as to lie flat on the base-flange of the rail when the bolt is inclined downwardly and laterally to project at its lower end, on which is threaded a nut 39, through the inclined side of the tie.

It will be understood that various other changes and modifications might be made in the construction of my improved tie and rail fastening means without departing from the spirit and scope of the invention as clefined in the appended claims.

Having thus described my invention what I claim as new and desire to protect by Letters Patent of the United States is as follows:

1. A railroad tie comprisinga concrete body of T-shape in cross section, and a reinforcing element comprising a metallic sheet formed into a pair of L-shaped elements arranged back to back.

2. A railroad tie comprising a concrete body of T-shape in cross section, and a reinforcing element comprising a metallic sheet formed into a pair of L-shaped ele- Vments arranged back to back, the backs of inforcing element therefor likewise of T- shape in cross section, the horizontal top flanges of said tie having vertical openings therethrough.

4:. A railroad tie comprising a concrete body of T-shape in cross section, and a reinforcing element therefor likewise of T- shape in cross section, said tie having openings extending downwardly therethrough from points approximately midway between its sides, said openings leading outwardly through the sides of thetie.

5. A railroad tie comprising a concrete body of T-shape in cross section, and a reinforcing element therefor likewise of T- shape in cross section, said tie having openings extending downwardly therethrough from points approximately midway between its sides, said openings leading outwardly through the sides of the tie, and being curved throughout their length.

6. In combination, a track rail, a concrete tie of T-shape in cross section on which said rail rests, fastening bolts engaging the rail on opposite sides thereof and extending downwardly through the top flanges thereof, and other fastening bolts engaging the rail between the first mentioned bolts and passing through the body of the'tie and outwardly through the sides thereof.

In testimony whereof I have affixed my signature.

J AKOB HOJNOWSKI.

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