US1131562A - Reinforced-concrete railroad-tie. - Google Patents

Description

` To all whom z't may concern:

.sonner H.

sewers.; er New' omnes', moisture, assiettes. or orateur rc smeer. r.l amm, or Newcomers, Louisiana annoncen-condemn :tuinman-'rial Be it known that I, ROBERT New Orleans, in the parish of Orleans and State of Louisiana, have invented a newv and usefulv Reinforced-Concrete Railroad Tie, of which the following 1s a speciiication.

My invention relates to improvements in intended to provide a concrete tie so reinforced that the strains may be as evenly distributed throughout the tie as practicable, so

that the tie y be especially reinforced beneath the rails, so that the tie may automatically tend to center itself relative to the .track and may resist tendency tol lateral displaceiiie'nts in general, and' so thatithe tie A may be made as of light and cheap construction as possible and yet may be of the de sired strength and resistance, both to vertical and compressive longitudinal strains.-v

yThe purpose of the invention is also to l provide -means .for supporting the rails 4ties, end for preyentingthe holding-down against lateral displacement relative' to the bolts from being accideiitally vertically withdrawn.

' My invention will l0 l y lie understood-by reference to thelaccompanying drawings, in

`which the same parts are indicated by the same reference symbols throughout the sev`- eral views.

Figurelis a plan view of a single tie,

showing segments of the rails mounted thereon; Fig. 2 is a frontview of the tie with the roadbed removed, part ofthe tie `being'sliown in centra-l longitudinal section,

the rails above the' same being shown in section; Fig. 3 'shows a sectional elevation through'that portion of the tie immediately" below-the rail,and shows means for securing the rail against lateral movement ontlie tieg' Figzel shows a section along the line of Fig. 2and looking in the direction of the arrows; Fig. 4 shows a similar view to Fig. 4, except that the wire truss member isA substituted for the metal plate trussmeinher of Fig. 4; and Fig. 5 shows a section" along the line ff-5 o1 Fig. 2, and looking -in the direction of the arrows.

hasits central sectionin the `form of a V, flattened at the bottom as as 2in Figs.. fiv and 4*; this portion of the tie being of con- The. tie 1, mainly composed Lof concrete,

Speccetien eflgettezs Patent Applicants alfa @um 1o, 1912, serial mi. 754,430. lemma :riyia iaigf serial m. 351,813.

H F. avcitizen of the United States,residing Jat .greater -breadththan depth, so. that. they 4and j Patented Mano, 1ere.

siderably. greater mailimum depth than to-he pressed into the roadbed in the center of .the track` This/deep wedge-shaped `een-- tral portion" of the tie merges toward the ends ofthe-tie into a flat rectangular shape U3, such as shownin -Figi 5. These rectan. reinforced concrete' railroad ties, and it is gularends of the Vtie .are y preferably of may have abroad' bearing surface upon the roadbed. 'Thusy the. central portion of the tie tends to cut into the roadDed-and to resist any vlateral pressure on the rails, while the rectangular endsof -the tie serve to support the tie on the roadbed near the ends, sind to prevent the tie from being forced down into the roadbed. l

"The upper portion of the tie near its ends .may be provided, as at C, with raised por.-

tions having shoulders 4 to engage the tie supporting blocks, as will be hereinafter described.

In order toprovide au eicient reinforcing means for a tie of the shape just described, .l providesuitable truss members, suoli es 5 and 6 of Fig. 2, or 5a of Fig. 4, which are conngcted together by suitable -tie rods 7 In Figs. 2 and 5, I have shown in the rectangular end members B'of the tie the inverted V-shaped truss members 6, while in the Wedgeshaped ,center of the tie, I provide a V-shaped truss plate 5 and 5L as shown in Figs. 2, 4 and Lia. The rods are connected to tlie end truss plates as shown in Fig. 5, and then pass into notches in the central truss plate 5, as shown in Figs. 2, l and 4, forming a. framework having rods crossing beneath the rails, as shown in Fig. 2. This metal framework is, ofcourse. put in place before thev tie is molded, and the little trusses 5 and 6 hold therods in place While the concrete is becoming set.

' It may be desirable instead of the central truss plate 5 to use a heavy wire truss 5*,

of the wiretruss'being adapted to .receive f the rods 7 and 8 as shown in 4a.* Ol viously thesmallend trussesmay also be of wire, if preferred.

. lItiwill be'noted .that by having the end trusses of'invrted il-shaped form, and the centraltrus'ses 4of uprigitsifshaped form,

. senese i than of the oiserrods 8. in practice have et'erthari the serew-tlireadedend i901:

shown onr of the upper rods and only onev of the lower.' New these upperv rods reinforce the tie avainst breaking in two, due to `tensile strains, while the .iai-ver veel tends to reinforce the tie against. compressive strains,

such as any jar orpressnre on the track may v cause, so that this particular arrangement of trusses and rods enables the Atie to be ade- 'duateiy reinforced against all.y compressive `and.tensile strains. v v In order' to provide suitable means for holdin@ the seres" ikea 'm en'nwement with n e:

vthe'conexc'etej tie,-'5; provide seit metal expan} sion sockets 9lv s L' Fig; 3, which are placed, 1n positionley K' the cement .is poured in.

These expansion-sockets are wel in shape4 and larger toward the-bottom, so' as to 'sent their being pulled est ai the cement' after it isset, and on the interior, these erf pension-sockets may be pretrial-.ed with sersw# threaded bores, adapted taree'eive the screw threads' 12"'onthe ends S et the bolts il.

screw threads may he formed in the j aeitpansion socket 9' by molding; seine about Aa sere-w spike of somewhat 'less dianscrewvspilre il, or the bore may be smooth. so .that time 'said screw down irmly seid sofi; metal' expansion socket, .experA tion against the surrounding" wall of cement. These soft metal screw' soelrets are expanf, sion sockets, in that the"taperin, oval, bulbous shape expands in @eyery ireetion against the surrounding' eonerete Wall `when theserew spike is inserted.

' The rails may be secured the eross tiesv the eenvk. v

in any convenient. way, mieli prefer' struction shown in Figs. l, l l5 represents a Wooden'. om top oi the een' ete tie giri resiliency to the structure. Ab 1.5 is a metal plate 17 having i s face serrated, as at 21, to engage i tentations on the side plates 8,'w..icn are caused to fit snugly against the anges :i base of the rail., as shown in and then are clamped in place and .held down 'by the heads of the bolts 11. i'

The several plates 15, 17 'and i8 are perforated, as at 5, to permit 'the insertion of the tie bolts 11. The upper plate 18 so perforated as to ermit a slight longitudinal' adjustment of t e plate i8' relative to the shank 13 of the tie bolt, so that the nose 'of said 'plate may be brought into close adjust'- mentvnlith the flange 3.9 of the rail 20, thus permitting standard ties to he eon':e1'1entld used with various sizes of rails.

[It will be noted that. the supports for rails are mounted immediately above the crossing of the reinforcing rods 7 and 8, as shown in Fig. 2, thus securing the best rethe spike may be serewed i,

.be nsedwithout L "s ,7, .1 I. suits against compressive and 'tensile traim,

4'central portionhaving its 'bofttnm'taperngm upward towardv said" ends,'fsuls,tant1 eseriliedf i' nl" .l

A concrete railroad tie lha'wfivngg; shallowf reetangulaifends, and a deep 'wedge'ishape' 85' Central portion 'having'fits bottoni ta e'ring;` upward toward said ends, with r'inioroing reds inclined u'fwa'rd-irornthebottoni ff." the ends the ne to' the @entrai p0rn-nig thereof, and downwardroin nezirlth'e topof the ends of said'ties'to the 'central portion" thereof 'to strengthenfsaid'tie against coin-' 'pressiveand tensile'fstra'ins, substan'tialljY 'as described. :i

A eoneete 'railroad' tieI havin' shallow reetangnlar ends, anda deep'Wedge#shaped, i I` 'n central portion 'havingits bottom tener-ing upward toward' 'sind ends, With-inverted Vi',

shaped trusses'mo'unted inL the rectangular' i shaped trusses'at the ends of 'the tieI and"` CentralD po endsgo' the tie, and 'an"upright"Vishapedfio ,i

truss mounted in' the 'wedge-'shaped"'entral portion-ofsaid tie,`withrod's crossing eahr' othe'rand' extending"substantially th'r'uigh-V out the length of the tieganlconnecti" b the', bottonrof'one V-'shapedtruss 'member uithfw the top, or the next''endlvice*rersm'fsubstanf toward said 'endsQWith inverted'lfshaped trusses mounted inthe rectang'ulaiff u portion of said-tie', Witha, nluralit'yl off ,rode 31E, connected to the 'bottom of the inverted passing. over the top of the V-shapel truss- L in thev center of the t1e,'and a' less number" `of rods leading'fom the'top of the inverted 12d \!-shapedtrusscs in the 'ends 'of the'tie t0` the bottom of the V-shapedftruss i'n" the/ceri` ter of the tie, whereby Lto' reinforce 'the tie against compressive an'd'tfensile stra'n'ssubstantially as described. 'i ma 5, Avconerete railroad tie having shallow.' 'j A rectanvula ends, .and a deep-Wedge-sh'aped.

tion having 'its bottom tapering upward toward'said-'ends, with. inverted shaped trilsses'mounted in the rectangular '1' 30 I

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