US1131889A - Reinforced rail-joint bar. - Google Patents

Description

B. WOLHAUPTER & E. P. SOHERMERHORN.

REINFORCED RAIL JOINT BAR. APPLICATION IILBD JUNE 10, 1911.

Patented Mar. 16, 1915.

3 SHEETS-SHEET 1.

Patented Mar. 16, 1915.

3 SHEETS-SHEET 2.

vB. WOLHAUPTER & E. F. SOHBRMERHORN.

R F ED AI JO N B. WOLHAUP R & REINFORCED APPLICATION r E. P. SGHERMBRHORN. RAIL, JOINT BAR.

ILLBD JUNE 10,1911.

Patented Mar. 16, 1915.

3 SHEETS-SHEET 3.

QMW

hniab nnha'aiain' w'oniaarrrrnn, or new aocianLLE, AND not/vanes r. scnnnnrnnrican, or

BROGKEl-YN, NEW YORK, ASSIGNORS TO THE RAIL J'GINT COMPANY, OF NEW YORK,

'Ll. '31, A GQRPDEATEON OF NEW YORK.

REINFGRCED EAILJOIN'I BAR.

Application filed June 10, 1911.

i To all whom it may concern:

Be it known that We, BENJaMrN Wot- Hammer: and EDWARDS F. SoHnmrnRHoRN, citizens of the United States, residlng, re-

spectively, at New Rochelle, county of West? fish-plates,whileat the same time embody ing areinforcement that secures a maximum strength'for the bar at the center of the joint, that is, in the vertical plane oi the meeting ends of the rails.

It is therefore the special object of the present invention to so construct and design a reinforced ma joint'bar that the metal thereof will be economically distributed by a progressive graduation so. to

the loads.

It is well understood by those familiar with the art that a rail joint bar in its capacity as a beam, requires its greatest strength and stit't'ness of cross section the the maximum sarong center of thejoint, or in other words at the center of its span, but this requirement of strength and stiii ness gradually decreases from the center to the ends of the joint bar. To meet that condition, and in harmony therewith, this invention has in View a graduated'reinforcement of the joint bar of such a cbiaracter as to dispose the maximum amoijiht of metal at the center of the joint and listribute it in such a manner as to give l. the lar the maxunum stiflness at its center,

with the amount of metal decreasing uniformly, or by suitable graduation, toward the twc'eh'dsot the bar. lnthe con- Specification of Letters Patent.

Patented Mar, 313, 3129153,,

Serial No, 682%92.

nection, the invcntion'also contemplates the desirable feature of having the jOlllli bflI' of lighter and thinner cross section at its ends,

and at approximately the location of the ineutral axis where the distortion of the fibers and the consequent stresses and strains are the minimum. is made by the invention for a gradual transition or merging progressively from the one cross section to the other.

With these and other objects in View, which will. readily appear to those familiar with the art as the nature of the invention is better ui'iderstood, the same consists in the novel construction, combination, and a1- rangement of parts hereinafter more fully described, illustrated, and claimed. 7

The essential features of the invention involved in the carrying out of the objects" Fig. l a cross sectional View at or near the 7 end the oint on the line 4'iof Fig.

Fig. 5 is a perspective View similar to Fig. 1 showing a modification in the form or character of the graduated reinforcement for the bar: Fig. 6 is a sectional View at the center of the joint shown in Fig. 5, the TlGW omitting the bolts.

Like references designate corresponding parts in the several figures of the drawings.

As shown in the drawings, a rail joint embodying the present invention comprises, in combination with the rails l and E2, the oppositel arranged side joint bars 3 and the usual series of joint bolts 4. Hence, the invention involves or requires no change in the general form, and manner of setting up, of the ordinary types of rail joints employ"- v N a m A| mg angle ha ls or splice bars.

Also, provision Referring particularly to the construction and design of'each joint .bar 3, the same is preferably of the angle bar type and consis'ts of the upright web or splice member 5 formed at its upper edge with the usual bearing head 6 that engages beneath the rail heads, and at its lower edge provided with the inclined outwardly projecting foot flange 7 which overlies and rests upon the inclined top surface of the rail flanges. These are the usual elements of the conventional angle bar for rail joints,but in addition thereto, the present invention contemplates the feature of a graduated'rinforcement for the bar so as to dispose the maximum amount of metal at the center of-the joint and to gradually and uniformly decrease the amount of metal toward the two ends of the bar. Also, it is proposed to provide a progressive change in cross section of the bar whereby the same shall be of a lighter and thinner cross, section at its end than. at the center. This special reinforcement and distribution of metal in the bod of the bar is eflected primarily by a thic ening of the bar at its center, and gradually decreasing the amount of metal toward the two ends of the bar.: In other words, the joint bar is reinforced by adding metal tothe body thereof at its central portion in its bearing headas indicated at A, in its web part, as indicated at B, and in-its foot flangemr foot piece, as indicated at C, the resultant cross section being plainly shown by the corresponding reference letters in Fig. 3 of the drawings. v

The central reinforcement A at the head of the. joint bar may be in the form of an outstanding continuous unshouldered rib that tapers from its maximum projection at the center of the bar toward both ends of the bar, and the terminals of the said reinforcin rib merge into the outer surface or face of the bar body. The center reinforcement B in the web part of the bar is a thickening of the bar atthat point, and this thickening is tapered off or gradually decreased toward the ends of the: bar asis evident from'the illustration in Figs. 1 ,to. 4: inclusive of'the drawings. he center reinforce;

" ment 0 in the foot flange ofthe bar consists of a thickening and wi at the center ofthe bar of this thickening and ends of the bar, as may be plainly seen from Figs. 2, 3 and 4: of the drawings.

In addition to the features above referred to,.there is combined therewith the progressivechange in cross section hereinbefore-mentioned, and in conening of said flange and the tapering ofi' widening toward the nection with this latter feature it may be explained that at each end the joint bar is made relativel thinas indicated at D; by

Y inclining the mner face of its .web downlwa-rdly and outwardly, since the point D is graduated reinforcing the approximate location of the neutral axis where the distortion of the fibers and the consequent stresses and strains are the minimum. From D the thickness is gradually .increased toward the center of the joint by the central part of the bar and to give to that part of the bar an I-beam formation wherein an enlarged head portion, having a projection both inwardly and outwardly, is connected with an enlarged foot portion by a substantially vertical and relatively nar-- row web-portion.

In Figs. 5 and 6 of the drawings there is illustrated a'modification wherein the reinforcement, particularly at the top and bottom edges of the joint bar is effected by stepped ribs A and C, producing graduated steps performing'the function of the elements A and G hereinbefore referred to. In other respects the modified structure is tthe same as thebar already described, and

.similar references will apply to similar parts in the different figures.

Various changes in the form, proportion and minor details of construction, as fall within the scope of the appended claims, may be .resorted to without departing from the spirit or sacrificing any of the advan tages of the invention.

.We claim;

A splice bar provided with a central portion having therein an I-beam distribution of metaL'and end portions having there- 'in an L-beamdistribution of metal.

2. A splice bar provided with a central portion having a horizontally enlarged head and a substantially vertical web connecting with said head, and end portions having downwardly and outwardly inclining webs. 3. A splice bar provided at its central part with an,I-beam distribution of metal including a horizontally enlarged head-haw ing an outwardly ,projectingrib which decreases in depth and width toward the relatively thinner ends of the bar.

4:. A rail joint bar provided at its central part with a substantially vertical inner face, and at its end portions with inclined inner faces.

5. A rail joint bar having its central part thickened and its end. ortions relatively thinner than, and of a ifi'erent cross section from, the thickened part, the thickness of the bar body being gradually increased from the end portions toward thecenter by changing the angle of the inner face of the our signatures in the presence of "We Wit- Web part of the bar. nesses.

(S. A rail joint bar having its central part thickened and provided with a substantially vertical inner face, and its end portions relatively thinner than said thickened part and Witnesses: provided with inclined inner faces. T. A. BRANION,

In testimony whereof We hereunfio afiix EUGENE Hnrwoon.

BENJAMIN WOLHAUPTER. EDWARDS r. soinnnirnneRn.-

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