US1625176A - Compensating and drainage joint for pavements - Google Patents

Description

April 19, 1927.

G. W. WARMOTH COMPENSATING AND DRAINAGE JOINT FOR PAVEMENTS Filed Jap. 23, 1925 INVENTOR Biffi/MM.

A T TORNE Y:

Patented Apr. 19, 19,27.

ferrea,

GEORGE WARIVIOTH, 0F INDIANAEOLIS, NDIANA.

COVPENSATING-'AND DRAINAGE :JOINT FOR 'PAVEMENT Application` flied. January 23, 1925; Serial No. 4,205.

Thisinvention relates; to a device for roads suchyaseconcrete roads and the like, wherein; the nine, due to expansion o-riother causes, cracks. These cracks permit moisture tof; seep therein .and theretlilough.` to the foundation orx subfgra-de Iand intime form a i soft ',.spoti beneath i the1 pavement f or roadv byiwashingfaway aportion on all of the sub.n grader- The chief object of the present invention is :terpreuent theeformation of the. aforesaid4 softispotand subifgrade washing and to pre.- vent vvmoisture. expansion ofthe concrete by Canryinggawaythe` water: from .the surface to the sub-grade.

Another; objectI of= the invention is to constructthe device in such: a manner that it servesas ajoint.'

. Another objectofthe invention is to conf..

struct the device yinpsuch a manner that it serves as Y anex anchoragevfor anchoring the pavement-'to the. sub-gradek and thus pre` to the foundation and prevents slipping of the foundation' with respect to the subgrade @ne featurev of f the invention in addition tothe-device accomplishing. the foregoing object-s is' thatlit forms-a joint-in the lpavement Whi-'clr willipermit ithe pavement in, its expansion andicontraction due tov temperature changes, tocrack` at the joint. i

The/ fullffnatuue of the.y invent'on will! be understoodffrom the. accompanying drawings and; the followingV description andclaims:

1n the drawings- Fig.Vv llis la ylongitudinal sectionaljviewwofa roadway showing Vthevv preferredifo'rm-offthe invention. Fig. 21is a transverse sectional view of a roadway showingftheinventiom` Fig. 3 'is a top plan viewof 'v the invention.

In the drawings 10 indicates the` sub-grade and positioned upon the sub-grade 1sv the bottoinfcourse 11, which` may beof any suitable character for supporting the pavement or roadway 12, which may be of suitable material but which is gener-ally of concrete.

The joint or sectionalizer includes a longitudinal member, herein illustrated in the form of a plate 13, having an inclined groove 14 formed therein which forms a channel or lead. The upper edge of the plate may be suitably formed as well as the lower edge, `but herein the lower edge is ventsfslippingof'the surface with respect shown toot-hed as atl.: 1t isto beunderstoodr (see Fig.; 2). thatthe sectionalilzer, or joint. extendsirom the. pavement through the bottom coursey and isanehored byathe. teethy or other .suitable anchorage means to eethesub-grade.r Thus thepaven'ient iszinchored to the. bottoni course. and the. bottoni ccairse; to. they sub-gradei` llhenpostioned 1 asshown in Fig, 2 thealternate expansions and;contractions-willi.form a crack limniediately above the :joint or sectionalfi'zer,y since-thisfis Athe thinnest portion of y.the-:pa-.veei ment and will' crack iirst. 1f desired theV crack 16. may .be formed in the pavement Howsoeveiuv the crack y 16; is formede the Water, which-collects on the-paveinentandi passes *through4 the crack, passes.:over ythe plate 13 untily it-fv passesnii'itovthe inclined;l channel 14er lead; whereupon it, flows down the channel or lead to the bottom of the 1'? 5 plate. Ifisuitable means is"provided-at=the discharge end of the channelwor lead forreceivingthe beforeinentioned. seepage thc:- same will xnot wash-away or soften the -bot` tom coursel or the` sub-grade immediately 80.I adjacent the same Suche col-l'ectionedel` vice. includesV a; suitable waterV`V percolative material'positionedinv awell at chef-discharge end i of the channeli orlead,

Herein suchV materiali, which mayi be of 85e gravel andthe like, isindicated by the nu meral 17. .The well is indicated. by thei numeral 18 and may lie-.formed byfdiggingnthe samewith a pos-thole device, Asa further means of 1 anchorage and to: .secure-further'99e rigidity and other desirable features, a thimble is provided.v Vihe thimble may be polygonal, circular', or of any desirediioui line.- rEhe thimble vinclmlesa bodyportion 19, the lowerledge-ofi whichv is provided withI I teeth 2O which constitutes the anchoring-` meansr oranchor-agethat is driven `intoI the subfgrade, said thimble being positionable in the post Ihole 18; Afterthus-positioning thothimble so that its upper-edgel 21 projects 10G* above the sub-grade, said thimble is" filledA with i water -per-colative material, such as graveland the like, and thereafterthe joints or sectionalizer are associated therewith. The top 21 of the .thimble is suitably notched as at 22.

As shown clearly in Figs. 1 and 2, the sectionalizer or joint member 13 is associated with the thimble so that converging channels or leads discharge into the thimble.

rlhe device preferably is so constructed that the saw tooth or anchorage portions 15 interlock with the notches 2Q, and thus prevent loiigitudinal as well as transverse relative movement between the thimble and the joint.

As shown in the drawings, the channel or lead forming` groove serves as a longitude nal reinfortament and also as a transverse reinforcement lor the plate lil. lilierein the upwardl \v converging; channels or leads comlmunicale with each other adjacent the upper edge ot the joint but. not at the upper edge. They mayY communicate al the upper edn-e il desired`r however. Fui-therinore, the joint 13 is provided with openings 23 that may serve as an anchorage 'for reinforcement when used in concrete roads. Other suitable means for anchoring;l the reinforcement to the longitudinal joint member may be utilized as well, The joint members lil mayv be coin structed in individual unita, each oi which includes but a single inclined channel 1li or may be so eoi'istrucled as lo include a `pair ol converginy or a pair ol' diverging channels, or leads or ma)v he so constructed :is lo include a plurality ol converginel and divergingl channels -or leads, the latter coustruction being;- shown in liins. l, 3 and Cl, and being the commercial tvpc otl the invention.

as will he rcadil y apparent' 'trom the draw ings, it will he understood that the thimble may be positioned slightly oliA center, that is the center ot' the thinililc may not exactly coincide with the plane olE the joint and the thimble ma),vv be so l'iositioned that the roots ot teeth l5 do not register with the notches 22, but may be slightly oilset therefrom, and 'furthermore the thimble may not he medium lv positioned for registration with the converging channels or leads but naiv he oii'set therefrom one or more teeth.

The invention claimed is:

l. A device for roads and the like comprising;- an elongated member including1 an iin clined lead and a supporting;- thimble into which the elongated member lead is adapted to discharge.

A device tor roads and the like comprising an elongated member includina` an inclined lead, a supporting' thimble into which the inclined lead discharges, and an in ter-locking` arraingement between said elon- `gated member and said thimble for ancl1oring the same against predetermined relative movement.

3. A device of the character described in claim l characterized by the addition oli' an- Lasarte chorage means upon the longitudinal member.

il.. A device ot the character described in claim l clnlracterized by anchorage means upon the thimhle.

5. il device of the character described in claim `1 characterized by anchorage means upon the elongated member and the thimble.

(r device ot the character described in claim l characterized by anchor-aggro means upon the elongated member and a rompiementari' .soclret upon said thimhle itor associalion with one ot the anchorage means for scouringl the thimhle and the elongated memher against prrdetcrmined relative movei'nent.

A. device tor roads and the like com prisinil an elongated vertically position-able member including' a pair ol downwardly inclined and converging leads diseharfofingi` ad jacent each other.

el. device ttor roads and the lille comprising` an elongated verticali),7 positionable mini'llnir inchulinp a pair o t' downwardly inlined and divi-aging leads dischringing` oppositelv trom each other.

ll. .il device l'or roads and the like, comprising an elongated vertically positionable member including' a plurality of dowin wardlv inclined leads arranged in pairs, the leads oi' each pair having` their lowest por` tions disclnn'niim; adjacent each other and the two end leads beingl divergingly inclined with respect to the intermediate pairs olz leads.

lll. A roadwayv construction includingY a sub-parle` a bottom course, a pavement, and au elongated member includingl an inclined lead, said .member being positionable in said pavement, bottom course and sub-grade and attending` through the bottom course, and a walter permeable construction in said sub- `grado into which said lead discharges.

ll. A device as del'ined by claim 7, characterized b v the addition et anchoring teeth on the lower portion of said elongated memlier.

A device as defined by claim 8`v characterized by the addition ol? anchoring` teeth on the lower portion ot` said elongated member. Y

13. A device as dened by claim 9, char acterized by the addition or' anchoring teeth on the lower portion oit' said elongated member.

la witness whereof, I have hereunto allixed my signature.

GEORGE lV. YVARMOTH.

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