US1672752A

US1672752A - Concrete crossing slab

Info

Publication number: US1672752A
Application number: US228427A
Authority: US
Inventors: Fred D Coppock
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-10-24
Filing date: 1927-10-24
Publication date: 1928-06-05
Anticipated expiration: 1945-06-05

Description

June 5, 192s. 1,612,752

F. D. coPPocK CONCRETE CROSSING SLAB Filed Oct* 24, 1927 INVENTOR.

Fredi?. (bp/voci;

Patented June 5, 1928. y

UNITED, STATES PATENT OFFICE, N

FRED D. COPPOCK, F GREENVILLE, OHIO.

i `oonoari'rr. onossrno SLAB.

Application nica october 24, 1921'.` serial No. 228,427.

to the spacer means. A further object a railroad crossing including armored, reinforced crossing slabs, spacer means between the slabs and track rails, and means interen# gaging with the spacer means and slabs for anchoring these latter tothe former.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a railroad crossing which is strong, durable, compact, conveniently installed with respect to the track rails, thoroughlyelicient in its use, and comparatively inexpensive to set up.`

With the foregoing and other objects in view the invention consists ofthe novel construction, combination and arrangement of parts as `hereinafter more specifically described, and illustrated inthe accompanying drawings, `wherein is shown an embodiment of the invention, but itis to be understood that changes, variations and modifications can be resorted to which fall `within the scope of the claims hereunto appended; In the drawings wherein like reference characters denote corresponding parts throughout the several views:

Figure 1 is a fragmentary viewinV cross section, of a railway crossing in accordance with this invention. v i

'Figure 2 is a fragmentaryv view, .top plan and broken away, of a railway crossing in accordance with this invention.

' Figure Sis a top plan view of one ofthe crossing slabs f f y Figure 4 is a side view' thereof; y Arailway crossing, in accordance wit f this invention, includes courses of armored,

reinforced crossing slabs, filler elements-bef` tween the track rails and the courses of the slabs arrange'dadjacent to the trackrails, shims mountedon the ties for supporting the crossing slabs, "and anchoring4 elements between the filler elements and said adjacent courses of theslabs and with the anchoring elements interengagingwith the filler elements and with the slabs of such adjacent courses thereof. i

A pairofliller elements is employed in i connection with each track rail and act as spacing means between the slabs of the pair of courses of the slabswhich are arranged adjacent to such track rail, but only one track rail and one pair of filler elements is illustrated. One of the filler elements is in- Y dicatedv at 1 and the `other at 2 and each of of the invention is to 10 provide, in a manner as hereinafter set forth,

said elements is ofa length to correspond to the length of a course of the crossing slabs. The filler element 1 has its upper face con caved as indicated at 3 and the concavity extends from one end to the other end of such element. The upper face of the element l is furthermore provided with a beveledportion 4. The sides and bottom of the element 1 are squared. The element 1 is of less height than the element 2 and the latter has its inner side, at` the upper ortio-n thereof mortised toform an inclinedp abutment 5 and a bev.- eled seat 6, the inclination `of the abutment` `5 vbeing towards a side ofthe head 7 of thetrack rail 8. The seats 4 and 6 conform incontour to the contour of the lower face ofthe head 7 of the rail 8. The lller elements land 2 abut against the points` of j oinder between the web of the rail 8 and the head 7 of the latter and said filler elements yfurther abut against the points` of joinderbetween the web of the rail 8 and the base 91of1the latter. The upper face of theelement l is arranged below ,the head 7 of the track rail and the upper face of the element 2 is ositioned in close proximity to thetread of) the head 7. f Y

lMounted on the tiel() is a railchairll, upon which is mounted the `base 9 of therail 8 and spikes`12 are em loyed for securing the rail 8, chair 11 and t1e 1() together. "The i chair 111 is lprovided with openings 13 for thepassage` of the spikes 12. The` width of the element 1 is 'such that when such elementl is mountedl in position as shown in Figure 1 it does notproject beyond one end of the chair `11. The width of the element 2 is such that when mounted in `position it projects-beyond the other endof the chair' 11see Figure 1.

The slabs of the courses which` are arranged adjacent to the track rail 8 are indicated at `14, 15. The"`

slabs

14 and 15 are mounted "on .shims 16 positioned upon the ties 10. The shims `16 are constructed `of wood. The elements 1 and 2 `are conc structed of wood and preferably are Creobei soted. The element 1 is provided with a series of spaced, transversely extending sockets 17 which opn atv Ghe outer side)y thereof and the element 2 is formed with a series of spaced. transverselyextending sockets 18 which open atV the outer side thereof. 'The sockets are so arranged that three will be associated with a slab 14 or a slab 15. Secured in each' of saidsocket's is an anchoring element in the form of a pin 19 ahdi'which is of' alength to'pi'ojct a substantial distance laterally, fronra filler element'. The p in's'f19 are fixed'ly secured in the'iiller elenents 1.; 2 and' engage the* sockets'in such elements throughout. Thel pins are so' set up',` preferably, that one half will be' 'anchoredinlhe" fillers and1 the other' haliiV will project latlerall'y7 froin the filler elementsa The shilns 1'6; preferably are of lbss height than thc height of the ra'i'l' sea-t' 11.

Each of the crossing slabs has its upperl portion armored and each is furthermore provided with reinforcements throughout, and` said reinforcements aredisposed'hori-l zontally and longitudinally with respect'to the body of the slab,and the latter is formedr from concrete; A' A The body" of each slab is indicated at 19', is of" rectangular'contour 'and 'of a height greater than the height of the filler element 2. Surrounding the 'upper portion' off'the body'19 is a rectarigular,V metallic' frame.' 20 which constitutes an'arinor and theouter face ofsaid'frame 20 is-Hush with the outer face of the upper' portion of the' body 19". The longitudinally extending re-y inforcements for thebody' 19 consist of metallicrods 21 which are preferably cylindricaflin cross section' and thellorirontal` reinforcements consist of rods 22 of c-ylinf-r drical cro'sssection. The longitudinal. reinL forcing rods are snrangedin sets, one set' positioned between' the center and;y up r face of the body 19l and the other-set etvveexr the centerv and lower facev ohthe'bbdy' 19 The horizontally" disposed' 'L reinforcements alrejals'o arranged'in* sets anch onefset ispo#` sitioned above the upper 'set' of the Ilon'gicul dinal reinforcements andfthe other 4set ofi the horizontal reinforcements isfarran' edibeibw` ther lower longitudinal'seti Pre er'-l ably the horizontal"reinforcements abut against 'the longitudinal' reinforceinents'.A The Vupper horizontal reinforcements have. downturned ends 23 which enga e in lob "s" 24g struck fronifthesides of the "frame 0J Theflongitludinal 'reinforcements are;` of a' length slightly less than th len'gtflfiof the' bitvie'.I i

'Each 'slab 145` as well ae'each slab' 15, thesesla'bs forminfthe5 cburses arranged adjacent-to they nach rail s; have their inner sides,` below the='rame' 20V formed with al series of'sockets 25 which gradually'dectease ndiamete'r from* the outer toy the inner ends thereof, or in other words each socket 25 is tapered and; ish adapted to receive the lateral y pkoeofed portion of an anrliori'ng pin 19. The pins 19 are constructed of steel andA have a wedge-like enga ment with the sockets'` Q5 so as t'o'anchor t e slabs 14 and 15j@ thgufiller elements 1 and 2 respectively. The sockets in a

slab

14 or 15 are arranged in spaced! relation 'similar to the spaced relation of the sockets in the filler elements whereby when the' slabs 14v and` 15 are setup the sockets in these slabs will oppose the sockets' in the'ller elements. As illustrated in Figure 4,' the inner side of a slab 14 or15 is rovided with three sockets 25.

' `he frame' 20' provides an arnor for the upper part of the body portion 19 andy each side, as well as each end of said frame has a squared outer face, but its inner face from a. Vvoirit removed: from the center thereof iiichning inwardl Y as atQBQ 27: so as to overlap aV part'of the ody portion1-9and secure the franie 2() to said body portion 19.V The setting u of the inner-.face ofthe sides and ends of t e frame 20 with the inclined portions forms broad edges for said sides and entls. The lower longitudinal set 'of reinforcing bars, as well as the lower horizontal set of einforcingbars are arrangedbelow the sockets 25` formed in the body portion 19. The lower portion of the side of each body ortionf19. can be beveled, 'if desired asin ic'atd at 28. Thelarnioring andv reinforcing of the upper part, of the'body portion-*19' increases the life thereof.

' What I claimiis: 4

1.- In a railway crossing a pair of filler, elements for juxtaposition with respect to' the sides of 4atrack raih, a* course of. crossing slabs abutting against'ech of said elements. each of said 'elements corresponding' in length" to they length of a slab, and means carried by saidfiller elements and extending into the slabs of; said courses for anchoring said slabs in position andi in abutting engagement with respect, to saidelements.v

2. In ay railway crossing 'afpair of filler elements for jute-position with respect to the sideslof/ track rail, a course/,of cross ing slabs abutting againsteachl of said elements, each'v of said elements corresponding in length to the length ofa slabiand means carried by saidrfiller elements andextending into the slabs of said mursesfor anchoring said slabs'in. positiongantl in abutting e'n' agement with respectv to said elements' one ofsad elements of less heightthan the other and 'eachA of sid elements abuttingagainst the' track railfand further extending below and. abtting' against the lower face of the tread'-.h'e rail.`

3.` In a.- railw'ay crossing, a filler element adapted" to be positioned adjacent a track rail,' sind any armored, reinforced crossing slab having its inner side formed with a plurality of spaced sockets for the reception of anchoring means to couple the slab with the the upper partof its body portion encom-` passed by a metallic frame to constitute an armor therefor, said body portion on one side thereof and below said frame formed with a. plurality of spaced sockets for the reception of anchoring means to secure said slab to the filler element.

5. In a railway crossing a pair of filler elements for `iuxta-position with respect to the sides of a track rail, reinforced concrete slabs positioned against each of said filler elements, each of said slabs having the u per part of its body portion encompassed gy a metallic frame to constitute an armor therefor, each of said elements having its outer side formed with a series of spaced sockets, each of the slabs ofeach of said courses having its outer side provided with a plurality of spaced sockets arranged below said frame, and pins secured in the sockets of said elements and extending into the sockets of said slabs for anchoring these latter in position.

6. In a railway crossing a pair of filler elements for juxta-position withrespect to the sides of a track rail, reinforced concrete slabs positioned against each of said filler elements, each of said slabs having the u per part of its body portion encompassed y a metallic frame to constitute an armor therefor, each of said elements having its outer side formed with a series of `spaced sockets, each of thc slabs of each of said courses havingits outer side provided with a plurality of spaced sockets arranged below said frame, and pins securedin `the sockets of said elements and extending into the sockets ments for tion of said slabs for anchoring these latter in position, each of the socketsof each of said slabs being tapered.

In a railway crossing a pair of ller elejuXta-position with respect to the sides of a track rail, reinforced concrete slabs positioned against each of said filler elements, each of said slabs having the upper part of its body portion encompassed by a v'metallic frame to constitute an armor therefor, each of said elements having its outer side formed with aseries of spaced sockets, each of the slabs of each of said courses having its outer side provided with a plurality of spaced sockets arranged below said frame, and pins secured in the sockets of said elements and extending into the sockets of said slabs for anchoring these `latter in position, each of the sockets of each of said slabs being tapered, said slabs of greater heights than said filler elements, one of said filler elements being of greater height than the other, abutting against one side of the lower face of the tread of the track rail.

8. In a railway crossing, a filler element adapted to be positioned adjacent a track rail, a crossing slab 'consisting of a concrete body having oppositely extending reinforcements near the top and near the bottom thereof, a metallic frame encompassing the upper part of said body portion andproviding an armor therefor, said frame flush with the top of said body portion, said body porfurther provided on one side thereof with a series of spaced tapered sockets adapted to receive anchoring means for connecting said body portion to the filler element.

In testimony whereof, I affix my signature hereto.

FRED D. COPPOCK.

and each of said filler elements