US872956A - Railroad tie, beam, or post. - Google Patents

Description

CHARLES K. MOHLER, OF CHICAGO, ILLINOIS.

RAILROAD TIE, BEAM, OR POST.

Specification of Letters Patent.

Application led May 19. 1904. Serial No. 208.759.

To all whom 'it may concern:

Be it known that I, CHARLES K. MOHLER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Tie, Beam, or Post, of which the following is a description and specification, reference being had to the accompanying drawings, forming a part of this specification.

Reference being had to the accompanying draWings,-Figure l is a side elevation, Fig. 2 is an end view and Fig. 3 is a plan or top view of the tie; Fig. 4 is a longitudinal section through the center of the tie, showing holes Where top fastening for rail is to be used; Fig. 5 is a section through C D of Figs. l, 4 and 6. Fig. 6 is a longitudinal section through G fI of Figs. 2 and 8. Fig. 7 is a half section on A B of Figs. l and 6 and one half section on E F of Figs. 1, 4 and 6. Fig.

8 is a half section on C D of Figs. 1, 4 and 6.-

Fig. 9 is a section through a modified form. Fig` 10 is a section through a modified form. Fig. ll is a section through a modified form.

In each of the several gures R represents the rail. T represents the body ofthe tie proper. l) represents the cushion block interposed between the rail and tie.

Similar letters refer to similar parts throughout the several figures.

The invention consists essentially of: the framework or body of the tie, beam, or post, T as shown in the several gures. The body or framework of the tie, beam, or post, may be constructed of any material which can be formed into such shape and consistency as to offer resistance toY crushing; to lleXure or cross bending extension or compression along its longitudinal aXis 5 abrasion; and to the undue destructive or disintegrating force of the elements. It may be constructed of such material as metal, the material known as concrete, terra cotta or burnt clay, etc. It is provided with suitable openings for the insertion of rail 4fastenings and reinforcing rods. The holes for rail fastenings are shown at X in Figs. l, 6 and 7, and at Y in Fig. 4. The holes for the insertion of the reinforcing rods or bars are shown at K in Figs. 5, 6, 7, S, 9, l0 and l1. The holes K are provided with suitable bearing surfaces so as to receive bearing plates or washers for securing and holding in position the reinforcing rods or bars.. The inside surface of the holes may be rough or smooth. Holes may be provided, however, through which there may not be any reinforcing bars placed. The sides may be provided with grooves as shown at M, Figs. 2, 5, 7, 8, 10 and 11. If desirable the body may be used without reinforcing bars or rods.

Reinforcing bars or rods of steel or other suitable material are shown at S in Figs. 5, 6, 7, 8, 9, l0 and ll. There may be one or more reinforcing bars or rods as shown in the abovenamed figures.v Figs. 5, 6, 7 and 8 show what is perhaps the preferred form. The reinforcing bars or rods are provided with nuts and washers or any other suitable means for securing and holding the same in position. The rods of themselves may be plain and smooth or provided with projections, or roughened surface so as to increase the holding power on the embedding or covering material. It is the intention in the preferred form of the invention to have the reinforcing rods placed under initial tension byv turning up the nuts, or adjusting what other fastenings may be employed, to accomplish that end, so as to produce an initial compression in the framework or body of the tie, beam, or post, before the cementing or binding material has set or hardened. The washers for the reinforcing rods are shown at W in Figs. 4 and 6. The nut N is shown in Fig. 6. The enlarged hole for admitting the washer, etc. is shown at L in Figs. 6 and 7.

The covering or embedding material for preserving the reinforcing rods and bonding the same to the inclosing walls of the hole through the tie, beam, or post body isshown at K in Figs. 5, 6, 7, 8, 9, l0 and 11. The embedding or bonding material may be of cement mortar, concrete, or other suitable material. Before placing the cementing or binding material around the reinforcing rods, the nuts or other fastenings, are adjusted so as to produce the required initial tension in the reinforcing rods. The embedding material is then poured in through a hole left in the washer W' shown in Fig. 6, and manipulated so as to thoroughly fill the space between the rods and the walls of the holes through which they pass. The enlarged holes beyond the ends of the reinforcing rods are then filled with the same or other suitable material so as to effectually seal the opening and bind and retain the rods in position. The same being shown at L in Figs. 6 and 7.

Patented Dec. 3, 1907'.

The holes for securing the rail fastenings are shown at X in Figs.' 6 and 7, and. Y in Fig. 4. The preferred form is that shown at X in Figs. 6 and 7. It is intended to furnish a hole for the passage of an anchor bolt through the tie or of the passage of a hook bolt through to the open hole Z. The hole X may be circular or elongated in section. In the holes for f-astenings shown at Y in Fig. 4, the hole is wider near the outer edge of the tie to allow of some lateral play to afford an adjustment of the rail to the proper track gage. (The type of fastening suitable for the preferred form. is that shown in the specifications and drawings for a railroad rail and tie fastening, the application for Letters Patent on which was filed April 14th, 1904, and numbered Series of 1900 No. 203171.) The cushion blocks b are shown in Figs. 1,*3 and 4. The cushion blocks are constructed of wood or any other suitable material and inserted between the base of the track rail and the top of the tie to prevent injury to the tie from shock and jars, and to prevent abrasion of the tie.

The object of my invention is: to produce a railroad tie, beam, or post, which will give greater resistance to the disintegrating and destructive im'iuence of time and the elements; a tie possessing good strength and of considerable size and weight 3 a tie that will afford a secure and ready means of fastening the rail to the same, and a convenient arrangement for bringing the rails to proper track gage. By means of the furrow or groove along the side of the tie shown in Figs. 2, 5, 7, 8, l0 and 1l, greater bearing surface is obtained than with the rectangular form. It will also afford an additional hold on the ballast to keep the tie from rising, as a result of the wave motion in the rail caused by the rolling load. Used as a beam or post the design can be employed in building and fireproof construction, etc. In addition, as a post, it can be used in foundation work and for fencing purposes.

By the use of such material as terra-cotta or burnt clay, cast iron, concrete, etc., in the construction of the framework or body of the tie, beam or post, great resistance will be offered to the destructive action of the elements. Unfortunately materials which have the best lasting" quality, and the cost of which is not prohibitive for track use, are wanting in the requisite tensile strength. To make up for this defect it is necessary lto supply the required tensile strength by introducing reinforcing bars of iron, steel or some other suitable material. In the tie, beam, or post, I have designed the body or framework is composed in the preferred form of vitrified clay and salt glazed. suitable material may however be used, the same being of the form substantially as set forth in the description and drawings. The

nally through the tie, beam, or post.

Any other body or framework of the tie, beam, or post,

having been formed, the reinforcing rods are inserted with the proper washers and nuts.

It is an essential principle of this invention that the body or framework of the tie, beam, or post, shall be so constructed as to receive the reinforcing rods, with their proper fastening, and to resist the initial tensionproduced in the reinforcing rods, produced by the tightening up of the nuts or other fastenings, to produce the desired strain. Theobject of putting the reinforcing rods under initial tension is to produce an equal and opposite compressive stress in the body or framework of the tie, beam, or post. By this means the tensile strength of the tie, beam, or post, can be made to very nearly balance the compressive strength. Then by placing the body or frame of the tie, beam, or post, under compression, cracks will not be likely to develop until the elastic limit of the reinforcing rods has been passed on the tension side. y

The holes for receiving the reinforcing bars and fastenings are made of sufficient size tol admit of a thorough covering of the reinforcing bars and fastenings with the cementing and binding material. By the use of corrugations or a rough surface for the reinforcing bar and the inside walls of the hole, they will be prevented from slipping on the cementing or binding material and will be made to act as a unit to resist strain.

The reinforcing bars are placed parallel to the longitudinal aXis of the tie, beam, or post, or as nearly so as may be found expedient. The reinforcing bars may run clear through the entire length of the tie, beam, or post, or only part way through as shown in the drawings.

Open holes may be left running longitudi- That will be a means of reducing weight if found desirable, and will facilitate the burning of the vitrified vclay tie, beam, or post, etc.

The reinforcing bars are to be of such size and shape as best to serve the purpose for which they are intended. They are to be placed in the position inthe body of the tie, beam, or post, arranged to receive them.

After being placed in position they are to be given an initial tension, the'object of which is as above set forth.

In the use of a railroad tie such as I have invented a much more lasting and substantial track construction shouldv be obtained than can be had with the ordinary wooden claim the use of reinforcing bars broadly; but

That I do claim as my invention and desire to secure by Letters Patent, is

The combination in a railroad tie, beam, or post, of an integral part known as the tie, beam, or post body, or framework, composed of vitrified clay, or other suitable material, of an elongated forni, having longitudinal holes for the reception of reinforcing rods or bars, andtransverse holes suitable for the reception of the rail fastenings, together with one or more longitudinal reinforcing bars or rods provided with suitable nuts and washers or other fastenings, the same being inserted in the holes running lengthwise of the tie, beam, or post body and securely fastened thereto, and tightened up so as to be in a condition of initial tension before the binding material has hardened, and remain under a condition of initial tension after the entire combination for the tie, beam, or post,

is completed, and produce an opposite condition of initial compressive stress in the particles of the tie, beam, or post body, the reinforcing bars or rods being embedded in and covered and cemented in with a cementing or binding material composed 0f cement mortar, or other suitable material, the body or framework of the tie, beam, or post, being held in a condition of compression as a result of the initial tension on the reinforcing bars, all substantially as set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CHARLES K. MOHLER. Vitnesses:

JEAN D. FANCHER, VINIFRED FANCHER DONLY.

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