US1562296A - Slab for railway crossings - Google Patents

Description

Nov.- 17 1925- F'. D. COPPOCK SLAB FOR RAILWAY CROSSINGS Filed Aug. 14. 1925. 2 Sheets-Sheet 2 Fig.6; 4-

& Z a I If 23 za Z3 v IN V EN TOR. Ire derzzfl'fiazzylaa' 00 0 0061; Y

ATTORNEY.

- CoPPooK, a citizen of the United States,

Patented Nov. 17, 1925.

UNITED STATES ATENT, OFFICE.

FREDERICK DOUGLAS COPPOCK, OF GREENVILLE, OI-IIO.

SLAB FOR RAILWAY CROS SINGS.

Applicatiofil filed au ust 14, 1925. Serial No. 50,292. K

To all whom, it may concern:

Be it known that I, FREDERICK DOUGLAS slab having both of its faces uniform to purpose aforesaid, and which is simple in itsexpedite the laying thereof, as well as to permit of the reversal of the slab when'ocas well as its sides, uniform to enable the positioning of the slab from either end or side. I

A further object of the invention isito pro-" vide, in a manner as hereinafter set forth, an

armored slab having each of its faces rein--- forced at the marginal portion thereof throughout to increase the life of the slab and to take the wear.

A. further object of the invention isto provide,in a manner as hereinafter set forth, a slab having armored sides and ends," and a wear take means on'eachiof its faces where by the strength and durability of the slab is materially enhanced.

Further objects of the'inventi on are to provide, in a, manner as hereinafter set forth, a reinforced composite slab for the construction, strong, durable, of standard form, thoroughly efficient inuse, conveniently' installed, and lnexpensive to manufacture.

With the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts as hereinafter more speclfically described, and illustrated in the accompanying drawings wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claims herewith.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a plan view of a composite slab 111 accordance wlth this invention.

Figure 2 is a longitudinal sectional view thereof.

Figure 3 1s a transverse section.

Figure 4 is a plan View of the combined armor and reinforcing element.

Figure -5 1s 'a'longitudinal section, Figure 6 a transverse section and F igure' 7 a fragmentary view in sectional elevation 'of said ele'men r Figure 8 is a top plan view of a railway crossing constructed with slabs in accordance with this invention. I

'Figure '9 is a section on line 99 of Figure 8; oasion requires, and further having its ends ,F'gu're 10 is a section on line '1010 of Figure 8.

Figure 11 is a fragmentary view, in plan, of a modified form of crossing.

Referring to Figures 1 to 6 of the drawings, the slab, in accordanceiwith this invention, comprises a combined "armor and reinforcing element and a body portion formed from plastic material preferably cement. The element aforesaid further functions as a mold or shaping element for the body portion.

The combined armor and reinforcingelement, is, of any suitable shape, pre rably rectangular, of the desired width, heig t and length, and of standard dimensions as five inches in height, six feet in length and six:

teen and one-half inches in width.

Both faces of the slab are uniform so the latter can be reversed or set upon either face, and this arrangement also applies to the ends and sides. The element includes a frame constructed of metallic material of the desired thickness and comprises a pair of side walls -1, 2 and a pairof end walls 3, 4.

Each of said walls has its edges of greater thickness than the remaining port-ion thereof, and which is formed by an inclined ofiset on the inner face of each wall at the top and bottom thereof. Theoifsets of each wall are oppositely disposed with respect to each other and each gradually increases in thickness from. its inner end toward its outerv end. Each offset extends lengthwise throughout with'respect to its wall and the Y 'larged edges of the said side and end walls.

offsets of the side Walls terminate in the offsets of the end walls. Each of said offsets is of a heightmaterially less than half the height of its respective wall. The offsets not only increase the width of the edges of the walls for the purpose to take the wear upon the exposed face of the slab, but further act as anchoring means for maintaining the body portion within the combined armor and reinforcing element.

The enlarged edges ofthe side and end walls are indicated respectively at 5, 6, and 7, 8. The offsets on the inner faces of the side and end walls are indicated respectively at.9,10 and 11, 12. y

Velded with the inner faces of the side walls 1, 2, are the ends of two superposed sets of transversely extending, spaced, cylindrical brace and reinforcing rods or bars. The rodsof one set are indicated at 13 and those of the other at v1 Welded with .the inner faces of thesend walls, 3, 4, are the ends of two superposed sets of longitudinally extending, spaced, cylindrical brace and re,

' inforcing rods and the rods of one of said sets are indicated at 15 and those of theother set at 16'. The rods 15 and 16' seat 'on the rods13, 14 respectively. The rods 13' and 3d 15 are positidned between the longitudinal median and one side and the rods 14 and 16 4 are arranged between the longitudinal median and the other side of the. frame. The ends of the several sets of rods are spacedfrom the inner termini of the offsets on the v inner faces of the walls of theframe.

The body portion of the slab. isindicated at 17, is formed of a suitable'plastic mate- .rial, such as cement,-and is poured into the frame, envelopes the reinforcing rods and .is of such quantity to be flush with the en- The material abuts against the inner faces of said wallsand is overlappedby said ofiset portions, see'Figures '2 and 3, whereby after the material h'ardens the body portion is anchored throughout at the top and bot-- tom of its sides and ends, under which conditions a separation of the frame and body portion is prevented.-

Referi 'ng to Figures 8,1) and 1G; a railway crossing isset up including a series of slabs, in accordance with this invention. The slabs. are arranged in courses and are. indicated' 18, thetrack rails at 19, 20,-wedge members"between an opposed'pair of the courses of the slabs at 21, filler elements between a pair of thecourses of the slabs and track rails at '22, 23, supporting shims l filler elementsfand the. 'shims are of wood.

' at 24, a filler between the pair "of opposed slab courses at 25,'and a concrete retaining means-at each end of the courses, at 26. The crossing extends at an an 1e with respect to the track rails." The wedges are of wood and the filler between them is bitumen. The

-of the courses of the slabs 27 are flush with each other.

What I claim is 1. A. slab comprising a combined armor and reinforcing element including a metallic frame having arranged therein and connected .therewith spaced reinforcing bars, and a body lportion of non-metallic material completely lling and flush with the slide and end edges of the frame, said body por tion completely enveloping said rods...

The wedges bind the courses ar- 2. A slab comprising a combined armor and-reinforcing element including a metallic frame having arranged therein and connected therewith spaced reinforcing bars, and a body portion ofnon-metallic material completely filling and flush with the side and. end edges of the frame, said body por tion'completely enveloping said rods, said frame provided with means on the inner face thereof for overlapping said body portion to anchon the latter within the frame. 3. A. slab comprising a combined armor and reinforcing element including a metallic frame having arranged therein and. conneeted therewith spaced, reinforcing bars, and a body portion of non-metallic material completely filling and flush with the side and f end edges of the frame, said body ortion compietely enveloping said rods, sai framev provided with means on the inner face thereof for overlapping said body portion to anchor the latter within the frame, said, said means extending throughout the inner face of each of the walls of said frame at each lengthwise ,marginal portion thereof,

the means on the marginal portions of each of said walls being oppositely disposed and further increasing the width of the edges of its'resp'ective wall, and said slab being reversible. Q a

4. A slab comprising a combined armor and'reinforci'ng element including a metallic frame having arr'anged therein and connected therewith spaced reinforcing rods, and

a body portion of non-metallic material com- .pletely filling and flush with the side and.

end edges of the frame, said body portion completely enveloping said rods, said rods extending transversely; and longitudinally of id frame. i

.10 of for overlappin 1 l' I 5. A slab com r1s1ng a combined armor;

ed therewith spaced reinforcing rods, and a 5 body portionof non-metallic \material completely filling and flush Wlth thB side and end edges of the frame, said body portion completely enveloping said rods, said frame provided with means on the inner face theresaidbody portion to anchor the latter within the frame, said rods extepding transversely and longitudinally of 7 said frame. 7 v

'6. A slab comprising a combined armor and reinforcing element including a metallic frame having arranged therein and connect- ,ed therewith spaced reinforcing rods,- and a body portion of non-metallic material completely filling and flush with the side and endedges of the frame, said body portion completelyenveloping said rods, said frame provided with means on the inner face tlfere- 1 of for overlapping"said body portion to.

anchor the latter within the frame, said means extending throu hou't the inner face of each, of the walls 0 said frame at'each lengthwise marginal portion thereof, the means on the marginal portions of each of said walls being oppositely disposed and so further increasing the width of the edges of its res ective wall,'said rods extending transverse y andlongitudinally of sai frame, and said slab being 'reversible.

7. A slab comprisin' a non-metallic body portion, and ametal ic frame completely JPBL ing the sid es/and ends*ofsaid bod portion, said'fFame having its edges flus and provided onits inner face with op ositel disposed inclined offsets overlapping the ody portion for 'I'anchoring' it withinthe frame, said offsets increasing thewidth of the edges of the frame, and said slab being reversible. I i

8. A slab com rising anon-metallic body pofitlon, a meta lic frame com letely enclosing the sides and ends of 'sai body portion, said frame having its edges flush with the exposed faces of. said body portion and '50 provided on its inner face with oppositely dlsposed inclined offsets overlapping the body portion for anchoring it within the frame, said offsets increasing the width of the edges of the frame, and superposed sets of longitudinally and transversely extending reinforcing rodsenvelope'd by said body por tion.

9. A railwaycrossing comprising a plurality of courses of exteriorly armored and 'interiorly reinforced-slabs arranged within' andexteriorly of a pair of track rails, spaced wedges interposed between a pair'of o posed courses arranged between the rails, fili er e1e-- Inentspositioned between the track rails and certain ofthe courses arranged between said rails, filler elements ositioned between the courses exteriorly of tile track rails and these latter, and filler means between said wedges. 10. A railway crossing comprising a plural ity of courses'of exteriorly armored and interiorly reinforced slabs arranged within and exteriorly of a air of track rails, spaced wedges interpose between a pair of opposed courses arranged between the rails, filler elements positioned between the track rails and certain of the courses arranged between said rails, fillerelements positioned between the courses exteriorly of the track rails and these latter, filler means between said with the exposed faces of said body portion wedges, and shims for supporting said courses at the desired height.

FltEDERICK '1). COPPOCK. 7

Images