US1696247A

US1696247A - Railroad tie

Info

Publication number: US1696247A
Application number: US258201A
Authority: US
Inventors: John W Mcmanama
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-03-01
Filing date: 1928-03-01
Publication date: 1928-12-25
Anticipated expiration: 1945-12-25

Description

Dec. 2s, 1928; v 1,696,247

J. W. MCMANAMA RAILROAD TIE Filed March l, 1928 pleted tie.`

tix

Patented Dec. `215, 1928.

I UNIransTATEs PATENT-OFFICE.

JoHN w, MQMANAMA, or WALTHA'M; MASSACHUSETTS;

y RAILROAD 'rrr-i.

" Application ilediMarch l, 19218. Serial No. 258,2(731.

` This invention relates-to a railroad tie whichy includesa body portion of molded concrete, and anietal bar embedded in the concrete body L to strengthen the latter, the 5 body being'provided tvith meansfoi engag-` v ,i ing track-rail s ikes driven into thetie.

One object o the invention is to produce a durableand serviceable tie at a reasonable Figure 3 is a perspective View of thelconi-l 14 is a fragmentary ftop :plan yieiv', 1 showing a portion of `the tie; and a portion of a tra k rail `attached thereto. f Figure 5 is'asection on line of Figure 4, the concretebody being shown only by broken linesfandthe bar in side elevation. Figure 6f`is a section Online 6-6 of Figures 4 and 5. A i y" AFigure 7 is a perspective view of the chair plate shown byliigures 4 54, and G." Figure 8 isa perspectiveview of vone of the bushings shown'by Figures 5 and G.

`Figure The same reference characters indicate the y same parts inall of the figures. y

Inv the drawings, `12 designates a concrete body 4which. may be formed iin a suitable Arnold.` `Embedded in the ,body is a metal bar `provided With a flat upper` face which ornisa part ofthe uppersurface of ythe tie, and a channelled lower portion oyerliungby thcupper portion and interlocked with 'the body. Said bar is preferably made romfa length of railroad rail of standard form and including a basepl'l, a? web 14, and `a head 1.6, 1 the bar being inverted, so that its base is uppermost. y i i g Thebar is preferably made in tivo alined sections, each `'ncludinga'basje 13, afweb 14, .and head 15,. c" f V The objectofthe sectional construction is to permit the insulation of the end :portions of thebar fromeach ether, the adjacent ends of` the sections Vbeing spaced apart at 16. The sectional bar; includes" means rigidly connecting the "sections and'preferably embodied in!" le@ :Plate 17, bridging the Spa@ at 4ltgand bolts 18, connecting thetie'plate` with the Webs 14, as' shown by Fi re 2. The bar also includes means insulating 'the said connecting mea-ns from the bar sections,

and embodied in insulation designated by' the heavy black lines in Figure 2. In caseY it is not desired to insulate the end portions Y of the bar romeach other, the bar` may be made in one piece. l W- The bar is placed in the mold which forms the body 12, With the base 13 uppermost, the plastic material of the body entering the longitudinal 1 channels between the. base 13 and head 15, and enveloping allv portions of the bar excepting the-upper surface of the base 13, said surface being flush Withfthe pper face of the body; "Vhen tlieplaistic material is hardened, Ythe web 1 4 and head 15 are'interlocked With the body `12`,.as shown byFigure 6.

The base 13 is much Widerthan the head 15,' as usual in railroad rails, Aand. its upper surface, which is iush WitlitheY upper sur- `faceof the bodyv12, presents a suitable area of metallic bearing surface kat theupper side of thetie;Y

Figuresll, 5 andG shoiir a portion ot' one f of the twoy track rails attached Vto the tie, 20 being the base, 21 the web, and 23:the head of said rail. The base of the bar 13 is provided with spike-receiving openings 24,

arranged to receive the attaching `spikes25,

which secure the track'iailsto the tie. f

The body 121s providedwith vertical spike-engaging] bushings 26 (Figures 5 and 6)" registering withV the openings 24. The

provided With conical head's25a formed to engage the opposite edges of the 'rail base 20,1as shown byFigure 5, said heads` having squared portionsjadaptedto be engaged by a Wrench.` v l t i,

The bushings 26 are, preferably tubes" of indurated fiber, having bores Whose diameter is somewhat less than that ofV the spikes,V

spikes 25'are preferably screw-threaded `and the operation of molding lthe body 12. The molded body confines the bushings between the `base and head, and prevents expansion of the external surface of the bushings by spikes driven into the bores thereof.` If de- `sired,ithe bushings may be inserted after the molding operation, in sockets formed for their .reception in the body, 'and the bushings' `may be splitA lengthwise, as shown by Figure-8, into sections formed to beiseparately inserted and assembled in the' sockets after the body hardens, the openings 2l in the core base being large enough to receive the sectionsoneat a time. It should be noted that in Figure 5, the body l2 is f shown'only by broken lines, and the bar is shown in side elevation. y.

Before attaching a track rail ,to the tie, a cushioning layer 28 may be 'seated on the upper side ot the tie. Said layer may be composed of fabric and rubber, or otherwise adapted to form a. cushion under the track rail.

ing spike-receiving openings 30 (Figure 7),rarranged to register' with` the openings 24. The, spikes 25 are driven through the several orifices until the inner portions of their conical heads 25 bear on the rail base 20. Thechair plate 29 is provided with raised abutments 31 (Figure 7) on which the outerportions of the conical heads bear when the spikes are fully driven, said abutments preventing the spike heads from slipping orspringing outbf engagement with therail base 20. i i I The. abutments are provided" with openings 3la (Figure 7)V coinciding with the ,spike-receiving openings 3,0 in the chair plate. The inner edges of the abutlnents bear on .the outer. edges of the. base 20 of the track rail, as shown `by Figures 4 and 7,. so that the chair plate performs a part ofthe duty of` preventing the spreading'o't1 the track.

Figures 4,- Llld 7 show ears 40, formed on one of theabutments 3l, and. adapted to bear on the upper side of the rail base 20, as' indicated by full and dotted lines in Figure `The barbase 13` is provided with upwardly `projecting stops 32, adjacent its opposite ends, th ese stops abutting the outer cdgesgofthe chair plates 29,` to prevent the spreading ofthe` track,` The bottom falce 33 of thebody is recessed, so that its lengthwise edgeportions are lower Athan its central port1011, the betteln ,tace being` formed to S0 engage the road bed material or track bal- 29 designates ametal chair platefhavV be partially embedded inthe body l2, to

project therefrom and be engaged by means employed for moving the tie to position for use.

. It isobvious that the metal har. characterized as described, may be manufactured as a tic element, without being originally a part of a railroad rail.

I claim:

1. In combination, a railroad tie comprising a molded concrete body and a metal bar embedded therein, and having an upper portion provided with a flat upper facey which forms a part of the upper surface of the tie, and a channelled lower portion overhung by the upper portion and inter locked with the body, the upper portion of thebar being provided with spike-receiving openings, and the body with spike-engaging bushings registering with said openings, the bar being provided with upwardly projectf ing stops adjacent its opposite ends;` and cha-ir plates supported by the tie and abut ting said stops, said plates being provided with spike receiving openings, registering with the openings 1n the bar, and with i raised spike-head abutments arranged to bear. on the outer portions of conical spike heads whose inner portions bear on the outer edges of track rail bases cxtendinfr across the tie, said abutments being widened to abut the outer edges of a track rail base.`

2. In combination, a railroad tic comprising a molded concrete body and a metal bar embedded therein, and having an upper portion provided with aA Hat upper face which forms a. part of the upper surface of the tie, and a channelled lower portion overhung by the upper portion and interlocked with the body, the upper portion of the bar being provided with spike-receiving openings, and the body with spike-engaging bushings registering with said openings, the bar being provided with upwardly project ing stops adjacent its opposite ends; cush ioning layers seated on the upper face of the tie, and chair plates seated on the cushioning layers, and abutting said stops, said plates being provided with spike-receiving openings, registering with the openings in the bar, and with raised spike-head abutments arranged to bear on the outer portions of conicalspike heads whose inner portions bear on the outer edges of track` rail bases extending across the tie, said abutments be-` ing widened to abut the outer edges of the track rail base.

3. A railroad tie comprising a metal bar composed of an inverted railroad rail, the edge portions of the inverted base of the rail overhanging the inverted web and head thereofI and havinof rail spike-receiving openings, vertical tubular bushings of conipressible material, havinglower ends seated on the inverted head, and upper ends seated on the overhanging port-ions of the inverted base, so that vertical displacement of the bushings in either direction is opposed by said head and base, the bores of the bushings registering with the spike-re-k ceiving openings in the base, and a lmolded concret-e body enveloping the inverted web, the head, and the bushings, said body eonfining the bushings between the inverted base and head, and preventing expansion of the external surfaces of the bushings by spikes driven into the vbores thereof, said bores bein expansible bythe spikes.

el. A rai road tie Vas specifiedby claim 3, said bushings being tubes of indurated fiber whose bores are adapted to conform to and be vinternally screw threaded Vby threaded spikes turned into the bushings.

In testimony whereof I have aiixed my signature. e u

JOHN W; MGMANAMA.