US1244813A

US1244813A - Reinforced-concrete rail-tie.

Info

Publication number: US1244813A
Application number: US14342217A
Authority: US
Inventors: Davis S Williams
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-01-20
Filing date: 1917-01-20
Publication date: 1917-10-30
Anticipated expiration: 1934-10-30

Description

D. S WILLIAMS.

REINFORCED CONCRETE RAIL TIE- APPLlCATlQN FILED JAN. 20, 1911..

Patented Oct. 30, 1917.

2 SHEETS-SHEET I.

6517/5 ZZ 5g 5;

u. s. WI LLIAMS.

REINFORCED CONCRETE RAIL TlE.

APPLICATION FILED JAN.20.19I7.

Patented. Oct. 30, 1917.

2 SHEETS-SHEET 2.

DAVIS S. WILLIAMS; F LOS ANGELES, CALIFORNIA. t

- Y REINFORCED-CONCRETEQBAILTIE;

igseasis,

' Specification of Letterslatent.

Patented Q Application filed January 20,1917. Serial ne.14's,422.",

To all whom it may concermj I I 'Be it known that I-,-DAvIs S. WnmiAMs, a

citizen of the United States, residing at Los an arrangement of reinforcing elements which will prevent strains and stresses from craokingior in any way proving detrimental to the concrete body of the tie'and therefore provide for the supporting of rails .in perfeet alinement and against spreading action.

Anotherobject is to provide a rail fastening means coeperating with the reinforcing elements of the tie so as to hold the rails against creeping or spreading and provide for the ready removal or placing of the tie without disturbing the positions of the rails. "Otherobjects and' advantages will appear during, the course of the'following descrip;- tion."

The 7 accompanying drawings 1 illustrate the invention: 7 a Figure 1 is a top plan view of a tie constructed in accordance with my invention;

Fig. 2 is a top plan view ofthe reinforcbody of the tie; I

- Fig 3 is a side elevation of the tie;

'Fig'. 4 is a side elevation of the reinforcing elements. i j

a Fig." 5 is an end view of the tie. v *Fig/G is a fragmentary longitudinal sec: tional view taken through the tie showing the rail" clamping means in position and holding a rail upon the tie; r

' Fig. 7 is a transversesectional view taken on line 7 7 of Fig.6; and c V Fig. 8V is an enlarged fragmentary-sea tional view taken longitudinally of the tie ingelements removed from the V concrete 7 at one end thereof.

- Referring to the drawings,y 1; designates a concrete tie body which is prov1dedw thmolined-sides 2; the base of the tiebeing wider than the upper surface thereof. -At each end the body is enlarged as at 3 and deepened as at lso as, to provide-additional strength' at the points where the ralls are 'supported'- and an anchoring means which 1 both Atpoints near its ends the bodyis widened transversely by outwardly projecting rail" supporting opposite integral therewith. gether with'the upper face of the body with which the upper faces of the projections are flush,'provide a relatively long railsuppo'rb ing surface which inoreasesthe solidity and supporting (-ifliciencyof the tie.

portionsf5 which extend from sides 6f thgbOdy and 'are' f d t p h projections 5 tov willfinally embeditself in road-bed.

h r n r ing-elements of the'tie extend longitudinally and j transversely there of. "'iEinbedded in the tie body at theends thereof and near its'lower side, are trans verse tie rodsfh, the endsiof which terminate flush with thesides of the tie, andenib'edded longitudinally within the tie inia horizontal plane, areflreinforcing bars and arranged parallel to one another posite sides of 'thetie. bars? and Sarebent up and over/the: tie rods '6, as shown; clearly at 9* in-FigQ 8 of thedrawingsr I {f' j Embedded in the tie transversely thereof and adjacentito op- The; ends of these above the rodsfi, are tierods10 and 11 ,fthe

rods 11 "being located above "the 'onels'f10.

l teinforci g bars 12 and arranged "in pairs, ""preferably, r re "mounted upon; the

rods 10 and ll respectivelyyand are embed ded' 3 longitudinally in 'the tie. i These has 121mm 13 arejstraight and parallel t e "each.

otherand the bars? at points" intermediate the ends of the tiebody; but from p ints adjacent to the i'nner sides of the projections -5, are i'curved-do wnwardly and then up wardly toward their free ends, at which lat ter points they arehookedas at lt

overthe rods

10 and 11.

' The bars "12 and 130-] gether'with the

bars

7 and 8 provide for reliable reinforcing of the concretefbody andthebars 12mm 13 in beingb'ent as de scribed; take the full shear and bending strains f at any section of the tie anddis tribute the tensile stresses over asufiicient area *of the concrete so that'itgwill not'jb'e crushed by Embedded thereof at points above. the rods 11' at the ends ofthe tie are tie rods 15 'which'have excessive side thrusts of the-rods.

in the concrete transversely i corresponding tie rods16 looatedjin' the 3:

same planes therewithat points on the in;

ner'sidesof the extensions 5; L Curved rein forcing bars 17f are embedded longitudinally in the 'tie' a'n'clfthe [ends li of the extensions which are bent over {the e on opposite,

sides v rods

15 and 16 as at 18 These rods take up the shear strain not accounted for by the other bars. 7

Embedded in the enlarged portions of at 20 and located adjacent .the upper cor-v ners of the extensions'at the outer ends thereof. These bars extend, downwardly and inwardly under the

bars

7 and 8 and over and upon the bars 17 Reinforcing wires 21 are embedded longitudinally and transversely in the extensions 5. and the up er wire 21 is wound'around the bent back ends 20 of the bars 19. Verticalwires22 are provided at the ends of the extensions 5 vand the "wires 21 are connected therewith. These wires 21 areorossedcentrally of the ends of the bars 19 and are so arrangedthat the tie is reinforced against breaking or cracking: incident .to accidental strains, such as might occur in'piling up the'ties' or during transportation, and the bars 19 reinforce the: extensions 5 against shear strains such as would be caused-by uneven tamping. Y i,

-' Embedded longitudinally in the tie body and connected at their ends with the tie rods 6 are reinforcing wires 28 whichflextend over the

tie rods

10, 11, 15 adjacent the upper surface of the tie for the length thereof upon the outer'sides of and parallel-with tie body between the extensions forming of the tiehorizontal portions of the

bars

12 and 13. These wiresserve to reinforce thetieagainst accidental strains such as defined as prevented by the wires 21. Embedded in the of, the tieare transversely extending wires 24 surrounding and engaging the bars 7 8,

12 and 13 which serve to holdthe longitudi m1 reinforcing rods in position .duringthe I tie body near the ends thereof and on oppositesides of the points Formed in the thereof to support rails are {openings 25 which are substantially wedgeshaped and 7 adapted to receive rail-clamping means which will be later more fully described.

Upon their inner vertical faces the openings 25 are inwardly offset and provide shoulders 26 adapted to be engaged by lateral projections 27 on the lower ends of bolts 28. .Bolts 28 are'placed within the openings 25 with their screw-threaded ends 29 uppermost and locatedv out of the openings. Rail base engaging plates. 30 having openings therein to receive the bolts are mounted upon the/bolts and held in positionby nuts 31turned on the screw-threaded ends 29. To prevent the shoulders 26 from being cracked or broken, there are provided transverse reinforcing I rods 32 embedded in the concrete along the faces of the shoulders, as shown-clearly in Fig. 6 of the drawings. Countersinks 33 are iplates 34:. The rails at the ends.

as to receive fibrous or other similar cushion are adapted to rest upon these plates 84. The bars 32 have their lower faces exposed so that the projections 27 will engage therewith. Hard wood wedges '35 which are preferably creosote'd are inserted in the openings 25 to hold the bolts 28' in position. These wedges are driven in firmly and on account of the re siliency thereof act to absorb side shocks fromothe. rails and therefore prevent the chipping or cracking of the concrete at the upper outer edges of the openings 25.

The gage of the track may be'regulated according to the size and shape of the wedges together with the angle of inclination of the openings for the wedges and bolts. Itwill be seen that the rail fastening means may bereadily removed and inserted in a comparativelyshort time. o

The reinforcing elements are held together as described and provide a fairly rigid frame which is placed in'the mold for r construction. may be resorted to when re- ,qu1red without departing from the spirit subjoined claims. I

1. .A rail tie comprising a concrete body portion, transverse rods embedded in the ends of the body portion, and longitudinal reinforcing bars embedded in the body portion and having their ends bent over the tie rods, bars embedded in the body portion transversely and near the ends thereof, certain of said longitudinal rods being curved at the points inthe body portion which are adapted to support the rails and engaging with the transverse bars. I 2. A rail tie comprising a concretebody, transverse tie rods embedded in the. ends of the body, lateral projections extending from opposite sides of the tie bodyat points near the ends thereof, longitudinal reinforcing bars embedded in the tie body andhaving their ends bentover the tie rods, reinforcing barsembedded longitudinally in the projections and extending transversely through the tie body, certain of said first named reinforcing bars being straight for their entire length andthe otherof saidreinforcing bars and scope of the invention as defined in the bars embedded'in the tie'body and having.

their ends bent over the tie rods, reinforcing bars embedded longitudinally in the projections and extending transversely through the tie body, certain of said first named reinforcing bars being straight for their entire length and the other of said reinforcing bars being curved adjacent their ends, wire connections between said bars for holding them in the desired relation to one another, and

reinforcing Wires connected with certain of the transverse tie rods extending over said tie rods and being embedded in the tie body longitudinally thereof.

4:. A reinforced concrete rail tie comprising a concrete tie body. longitudinal reinforcing rods embedded in the body, transverse tie rods embedded in the body at the Witnesses ends thereof, said longitudinal bars being hooked over the tie rods, certain of saidbars being horizontal throughout their entire length and the other of said bars being curved downwardly adjacent their outer ends at pointsbeneath the surfaceof the tie body'which are adapted to support the rails, and curved reinforcing bars embedded in the body at the ends thereof and having their ends located on opposite sides of points adapted to support the rails.

5. A reinforced concrete rail tie comprising al'concrete tie body, longitudinal reinforcing rods embedded in the body, transverse tie rods embedded in the body adjacent to the ends thereof, said longitudinal bars being secured to the tie rods, bars em: bedded transversely in the body at points near the ends thereof and between the tie rods and certain of said longitudinalbars being curved downwardly adjacent their ends and extended beneath and in engagement with the last named bars.

Signed at Los Angeles, California, this 10th day of January, 1917. t DAVIS S. WILLIAMS.

OHAs. J. GHunoH, L. BELLE WEAVER;

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0.