US1905023A - Road strip and support - Google Patents

Description

April 25 1933. w. E. WHITE 1,905,023

ROAD STRIP AND SUPPORT Filed May 26, 1930 i 5 outward to extend across the'joint.

Patented Apr. 25, 1933.

UNITEID'JFS'TJATES WILLIAM: E. wmmios ciiIcAcro; ILLinoIsAs'sIGNoR T KALMAN STEEL consent,

' .for cmcaeo, IL nvo s, A ooRroRA'TIoN or DELAWARE 30m) STRIP AND SUPPORT Application filed May 26.

U My invention relatesto roadwaysand pare ticularly to novel means forgpositioning and holding a strip and dowelbarg It frequentlyhappens that roadways are 5 constructed in sections, that is, one strip will be laid in contemplation of the laying of an adjacent strip at alater period. This occurs in caseswhere it is contemplated that the road will ultimately be widened, and also in 1 cases where, it is impossible to close the road,

one half of the roadbeing left open"while the other half is being paved. It is necessary in such cases to Y provide a, groover forming elementin theexposed edge of the concrete slab so that when the.1astsectionislaid, a

tongue-and-groovemember is formed for interlocking purposes andin order to permit expansion.

It is. necessary also to provide means for projecting dowel bars" between the adjacent slabs, this being accomplished by bending the dowel bar at right angles andfitting the bent end of the bar in the channel. Before the adjacent slab is poured, the bar is bent Much difficulty has been experienced in providing an opening in the channel or V-shaped groove-forming element to receive the bar, without providing so large an opening that 130 much of the concrete will flow out of the opening.

My invention relates to a simplified construction in which the objections to the known practice are overcome.

The invention will bemore clearly understood by reference to y the accompanying drawing, in which 7 V Fig. 1' is a side elevation partly in section, of an assembly such as contemplated;

Fig. 2 is a perspective view of the manner of joining the parts of two V-shaped strips;

Fig. 3 is a side elevation of a strip;

Figs. 4 and 5 are sectional views on the lines 4-4 and 55 of Fig. 3; and j Fig. 6 is a perspective view of the dowel 1930. Serial No. 1 155398, ta tent to senibly.

In the drawing,

the' lateral extent of the slab tofbe formed and which carries the concrete mixer. f

The groove-forming element is inf this be accommodated as;

1 y I have illustrated 1 usualsidechannel 10 which serves; to limit instance, a member not generally V-shape' in cross section, although it maybeof other channel cross section. The "problem is to provide means for supporting the stripin the proper relation and foradmittingthe dowel bar after the strip has. been placed.

According to my solution'of the'problem, the

"support of the strip is accomplished byprovidinga holding member consisting of a length of wire having a. straight vertical'pofn tion or stake 12, a head 13 anda rebent portion la forming a suitably shaped recess to receive the V'-shaped strip and tenninating in a foot 15 that acts as a gauge-tonindicatingthe extent to which the stake shall be driven into the soil; Inp'ractice, the strip is laid alongside of the -'niarginal mems ber 10, the stakes drivenfin apositiondegrees removed from that shown in'Fi-g. l; 1 that is with the recess arranged'atiright 'anglesto that shown, the strip is then raised andthe stake rotated'QO degrees-into the holding position shown in Fig. 1. Preferably the stake will be driven slightly closer to the strip than the final position indicates,

the stake being necessarily deflected goutwardly somewhat,- as it is rotated inorder to firmly. hold the strip in position, The foot 15 n .1? onlyserves as-a gauge but also as an additionalsupport for the weight of the con- I crete resting.; o'n the strip.

The dowel bar, best shown in 6, consists ofa straight portion 16,1 a foot 17: adapted to rest on the soil, and .agright angularly'bent portion 18 adapted-ate be jfitted in the angle of the V-strip. anid iulti- .mately to be straightened out to lie across the joint between two concrete slabs. 1 L 1 The opening in the nose of the V-strip is of peculiar'shape in order to enable the easy insertion of the bent end'18 ofthe bar. The

opening is formed byflproviding a "slit 19 across the nose of the Vandthen progressively deflecting thefmetal away from the I slit laterally to a'lessened'degree. [At the point of the slit the opening-will be substantially of thesize of. the bar as best shown in Fig. 1. 'The deflection is. pro-ggressively lessened as shown by thecross sectional view 'ofFigs. 4 and 15" until" it'disappears in the nose of the strip. This a1;

Y rangement enables: the insertionof the bent end of the bar-after .thestrip, isin "place and when the bar is located asshown', the opening is substantially completely: closed;

As a'means for joining the ends of the strips I provide a notcli -in'theend ofthe strip -and-that interfits with-the unnotched end of an adjacent strip, as best showns 'in 'A construction such as descrlbedmay be very quickly installed andthe only element c 1 requiredfin the assembly ,is the wire member which-is very cheaply constructedj I transverse, cut, the

1 penvtoward the endof th S P d pt d "toreceive'the bentend-of adowel bar.

3--In con1bination,* a strip of generally Obviously the exact "form' and arrangement-maynotv exactly'be'followed in order to securebeneflcial results and I donot wish to be limitedexcept asindica'tedlin, the a pendedclaims; r; Ilclaim fi V r 1. In "combinationfachannel adapted to 1 act as a; grooveiorniing element in the edge of a concrete" slab, said channelfhav n'g v a metal at one side of said 7 11; being-progressively deflected inwardly to providean inclined entrance passage for the right angularly bent end of a dowelbar. v r 2.- In combination, a strip of generally I; I

having atransverse slit, the Vmetal at one through 7 said aperture and to lie snugly in the V of the strip. v

5. In combination, a channel adapted to act asa groove-forming element in the edge of a concrete slab, said channel having an opening adapted to receive; an an'gularly bent dowel bar, and a stake adapted to be, 1

driven into the soil and to'loe Trotated after being driven, said stake having a recess at one side of its centervof rotation adapted to receivefandlioldsaidichannelz.

6. In combination,agchannel adapted to act as a groove-forming elementinthe edge of a concrete slab, said ;channel' l providing ineansflfor receiv ng a dowelbar, and when,

nel holdingv member comprising a prong adaptedto be driven into'the soil and a'portionabove the soil shaped [to receive said 5 channel, said-holding member being adapted to be rotated'after being driven in order to bring thef channel into? cooperative relation 7 'with: saidholding iemberf" 1 I s 7. In combination, I a channel grooveforming member 'for theedge of a concrete slab, 1 and I a Wire holding member comprising a stake adaptedito;beidriven'into the soil, the upper portion'of ,the jinemberbeing rebent to provide a scatter thejchanneh 8; In combination, a channelQ'groove-Q forming member --'for, the. edge of f a concrete slab, a wire holding mernbei'"comprisingra signature; J L

V-shape in,. cro'ss section, the nose of fth'ejV;

sid .of a'id slit being deflected inwardly to provide a substantially round aperture that V-shape; in cross section, the nose .oilthe V having a transverse slit, the ;metal atone side of said slit. being deflected inwardly to.: provide-.a substantially round aperture.- 7 that is open: toward the end of the strip adaptedfto receive the-bent end of a dowel v "bar, the deflection beingprogre'ssively less- 'e'ned fem; substantial distance from theslit. 4:. In combination, astrip 1 of generally- 'V-shapein cross section,'the I10Se'Of tlf l6 'V i having atransverse slit, the metal atone- "side offsai'dislit'beingdeflected inwardly to I provide I: a substantially round aperture thatisopentowardthe endfoffthe strip adapted to receivezthebentend'ofa dowel bar, and r aright angularlybent dowel bargthe', bent 7 end offfwhich is adapted to --'be ='-inserted i IW LE M-e? "m5

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