US1003316A - Combination steel and concrete cross-tie. - Google Patents

Description

s. A, BARBER. COMBINATION-STEEL AND CONCRETE GROSS TIE. APPLICATION FILED FEB. 25, 1911.

1,003,316-.- I Patemd septh 12,1911.

. z v mmm "sA-Muni. ne n. Bfn n,

'specifica ,16

I, SAMUEL A. BARBER, d States, residing at '/Loiiisvilleginthetcountyof Jefferson and State yof Kentuqkylyhave invented new and luseful,improvelnents,1n a combination steel vY'and,concretecross-tie for useon steam and electric railroadsyor Lrailways and for gen lof which the following is a speciy teral use,

` My yinventio relates to improvements in railroad 4,or railway Aties but more part-icu- V larly ,toy

I `the improvement in a combination steel and concrete crosstie and means whereby the rails are Isecured to the crossties.

`This,invention isdesigned to provide a combinedsteel andconcrete crosstie having all the lnecessa-ry' characteristics of ka wood crosstiefor successful` seivice, but not having-the perishable nature of the wood crosstiein railroad or railway service..

lFurthermore, this invention provides a simple andstrongineans for att-aching and securely fasteningtheysaid crosstie to the rails'wherebythe said fastenings cannot be broken or destroyed without destroying the said crosstie, vthus doing away with the necessity ofrailybraees on railroad curves.

l Thisinventio'n further provides that this combination steelf and concrete crosstie may be ofthe same cross-section as a wood crosstie already in use on a. railroad sothat the combination steel and rconcrete crosstie may be used in conjunction with a wood crosstie; thus it is ol'iviousy thatwhen ay wood crosstie becomes rotten, or otherwise unfit forfurther service or use in the roadbed, it may be removed and the above mentioned combination steel and concrete crosstie substituted tor the wood tie, as the combination steel and concrete crosstie is adapted for use with a wood crosstie, as well as adapted for exclusive use in a roadbed.

This invent-ion. permits of economical distribution of crossties in the roadbed, as the ties to which this invention refers may be put in the roadbed when necessary to remove an. old wood tie, or ties, without any more expense than is necessary to lay new wood crossties and without disturbing the roadbed and without danger to the t-raveling public.

A special feature of this invent-ion is the two solid steel plates that form the main body of the combination steel and concrete crosstie mentioned herein, one of which TESPATENT ann foononiirn' 'ondes-rin afp Apniicamn aled'retriiary 2s, ieii.

rounded, as shown in the drawing,

vnot cost any more than a Alt@ Sjeplz: ,1.9111- vvsemaine.,e1o,s7o., an l plates will be 'in tension and the other-in compression. -Both ot these plates are surby an elastic 'material of sufficient length, 'at their 60 center, where the maximum bending inoment will occur, to allow .them 'a certainspring without-crystallizing the `steel or breaking or disturbing the/concrete.

The vinvention further provides that the aforesaid crosstie may be cast as one piece and solid, with the exception as shown in the. drawing. ,The strength of the aforesaid combination steel and concrete crosstie will depend solely upon the strength of the steel, the concrete being used only to give it s'utlicient cross-secti0n. f l

The invention provides for a tie that'will first-class -Wood tie, and will last much longer thanl a first-class Wood crosstie. f Vith the foregoing and other-objects in view, the invention consists in themethod of arranging the details of constructiong'and in the arrangement and combination ofparts to be hereinaftenmore fully set frth and i claimed. f

In describing the invention in detail, reference will be had to the accompanying drawing forming part of `'this 'specifica-tion 85 wherein like characters denote correspoi d ing parts in the several views, in whichL Figure l is a View, in elevation,V o 4fa crosstie embodying the invention witli th rails in section. Fig'. 2 is a longitudinal' 90 sectional view, showing a method of-construction. Various changes may be made in the construction-and arrangement vof 'the parts without departing from the spirit-'br sacrificing any of the advantages of the in- 9 5 vention.- Fig. 3 is a view in plan of *onel ot the steel plates, both being alike in' the main. @ne view will answer for both. They are reduced toward the ends in order to reduce the expense in the construction of the crosstie, while, if necessary, they will be made full width throughout their whole extent. The top plate will have a crosssection sufficient to give it the tensile strength required. It is evident that the iiexibility of the crosstie depends on the cross-section of thelower plate and the amount of curvature given it at its center, both of which will be varied to suit the demands. I do not coniine myself solely to the method of 1.1/ fastening the plates together as shown in Fig..2 which is only one of the many ways,

in'Figs. 5, 6-and 7, which will extend down help` to fasten the rails to the tie.

, the'cnerete is cast around them. This willthat it can be done. Fig. 4 is a cross-section of the crosstie on the line C D, Fig. 1. Fig. 5 is a cross-section of the tie on the line A B, Figfl. Fi 6 isan end view of the :5 rail plate. Fig. is a longitudinal section .of the rail plate. Fig. 8 is a longitudinal section of a lug, `or plate,- to hold the rails.

Referring to the figures by characters of reference, 1 designates the body of the tie which is a combination steel and concrete y crosstie.

2 is a. metal plate, which is also shown in section by Figs. 6 and 7 to support and lIt has vva slight vertical projection acrossl each of its ends against which the end 'of ,the rail fastening shownA at Fig. 8 'will `t. This arrangementwill always hold the tie at right angles across the roadbed. This plate also has a Acentral lon 'tudinal rib, shown nthrough the concrete and rest on the tog) steel plate for a purpose hereinafter state 4 represents the bolts headed on the .un-

-plate and lug, and, with the `help of the nut, binding them all securely together. They 'are also cast ,solid in the concrete and form an integral part with the tie.

5 isthe rail. 6 indicates the twosteel plates described above., For :further details of these plates )see Figs. 2 and 3 of the drawing.

7 is a material vsomewhat softer than concrete', such as asphalt,l mineral tar, or some if combination of materials to be placed around the top steel plate immediately underneath 'therails and on which the lon 'tudinal rib, referred to above',V of the rail p ate will rest, thus giving thecushioning' effect that is claimed forY ail'wo'od crosstie.. l

8 is; an elasticA material whichv will be x placed'4 around the top and bottom plates at their centers for 'a certain distance before prevent the concrete'frm taking hold of the steel, plates for that distance and will allow the plates the necessary iexibllity without danger-Tof breaking them or disturbing the concrete, or, in other words, this fderneath side of the lower plate andpassing through the lower plate, top plate, raill it break after it is placed in the road-bed and leave a ragged line as that is all the consequence that would occur on its break- 111g, for I .do not depend upon the concrete for any strength but merely to give the 'crosstie the' necessary cross-section.

.10 is a wire mesh cast in the concrete near the bottom of the tie to protect it from the picks of the workmen. while tamping same. Having thus described my invention, what I claim, and desire to secure" by Letters Patent, isy 1. A railway crosstie composed of concrete and two steel plates running lon iftudinally through the concrete and partial y embedded therein, and joined together at their ends, having ,the greatest cross-section` of the steel at the center of the crosstie.

2. A railway crosstie composed of concrete and two steel plates, having the top and bottom plates wrapped with a pliable material for the distance of 10 or 12 inches on each side of the center opening in the concrete, thereby' providing flexible steel 'plates inside a concrete block.

3. A railway crosstie composed of concrete and two steel plates, the top steel plate wrapped with a pliable material at the point under each rall so as to form a cushion for the rail. A

In testimony of the fact that I claim the foregoing as my own, I have hereunto affixed my'signature in the. presence ef two witnesses.

i SAMUEL A. BARBER.

Witnesses:

G. E. PORTER, H. W. WmLEN.

Images