US1812300A - Concrete block groin or sea wall - Google Patents

Description

June 30, 1931. c. T. LEEDS ETAL CONCRETEVBLOCK GROIN OR SEA WALL Filed June l2, 1929 FIG.5.

INVENTORS I l I C. T. LEEDS W. K. BARNARD www BY ATTORNEYS wherein Patented June 3o, 1931 UNITED STATES PATENT OFFICE "CHARLES T. LEEDS AND WVILFRED K. BARNARD, OF LOS ANGELES, CALIFORNIA CONCRETE BLOCK GROIN OR sEn yWALL Application filed .Tune 12,

lThis invention relates to improvements in groinsor'sea walls.

An object of the invention'is to provide an'improved groinv construct-ion adapted to be erected upon sea beaches and the like to prevent or retard lateral washing'ory drifting of the sand and thus build up a sea beach :Which may beunder the process of being mum amount of expense and labor. 1 kf Another object of the invention is to pro- 'vide a ygroin construction, composed of a series of concrete'blocks laid side by side in an inclinedposition and which are so constructed that they will effectively be kept from overturning or displacement by wave vide a concrete block adaptedv to be used in constructing groi'ns, which is of cheap,

simple and durable construction, and which maybe easilyH handled and positioned in place.

With 'the foregoing and other Objects in view, which will be made manifest in the following detailedl descriptions, and specifically `'pointed o utin'theV appended claims, reference is Vhad to the accompanying vdrawings for an f illustrative Y vembodiment of the invention l Fig. 1' is a ysectional view through a sea '.-beach illustrating a groin embodying the invention after having beenV erected thereon.

ijFig. 2 is a sectional view through the groin 'and may be considered as having been taken upon the line 244-2 upon Fig. 1. y

,FigyS is a top plan view of one of the blocks employed inf' erectingv the improved groin.

Fig. 4 isa view in elevation, parts being broken away, illustrating the rear 'side of the block shown in Fig. 3. f v

Fig. 5 is a view in sideelevation taken in Vthedirection ofthe arrow 5H upon Fig. Referring' to gthe accompanying drawings y,wherein similarjre'ference characters designate' similar parts throughout, the improved 1929. Serial No. 370,271.

groin is built of a plurality of concrete blocks, these blocks being rectangular in plan, having relatively wide bases 10, and upwardly sloping and convergingsides 11. At their tops the sides may be arranged vertically as indicated at 12, 'although this formation of the tops is immaterial. The forward or outer face of each block is provided with a projecting vertical rib 13 arranged at the center thereof, and on the rear face of each blockl there is formed a complementary vgroove 14 for the reception of the rib on an adjacent block. A suitable U-shaped steel bar 15 is imbedded in the top of a block and serves as a bail by which the block may be conveniently transported and handled. Additional bails, indicated at 16, are, or may be, imbedded in the sides of the block and in the rib 13 and 'have their projectingy portions disposedin i the beach, such abutment being illustrated as a large specially formed block of concrete, indicated at 17. The particular construction of this initial abutment or buttress is .immaterial and in some instances the first block of the series of blocks forming the groin can be rested against the rock formationA or high ground which may bepresent near the beach. Vhatever structure is employed for the abutment or buttress is preferably arranged above the high water mark. The various blocks forming the body of the groin are then laid rone against the. other 1n contiguous relat1onship extending out into the ocean to a point preferably below the low water mark. In laying these blocks they are caused to assume the inclined positions shown in Fig. 1, 'and while the inclination may vary'itis preferably such that the blocks may incline at an angle Ofbetween forty-five and sixty degrees to the vertical. The blocks are laid one after the other from the shore end outwardly until the groin is completed. In laying the blocks the ribs 13 are caused to enter the grooves 14 onrthe next forward blocks so that' these ribs preventlate'ral relative. displacement.

After the blocks have been assembled in contiguous relationship, a bar or cable, indicated at 18,Y may be threaded through the bails l5, extending longitudinally of the groin. This bar or cablevvill form a loose tie connecting the various blocks but still enabling themato-settle independently of each other. Y

The blocks are allowed to remain lin this condition for a suitable length of time during 'which they-Will 'settle lslightly finto the sand. After the settlinghasjoeen:completed7 a suitable concrete coping,` indicated at "19, is, or may be, poured .overthetopsofihe blocks binding them all together Yand causfing;tihe..enbireser=ieeeffleleeke 'weet ase mene- .;lithie- ,Stnuetiire llliisieepng .meyheve rite sideeeX-tendeel downwardly :evier the 'verti- .eaL-portonepl2 .ef the .sides A1l .end eer-ves te @Cremeren hexereieetingfperbiensfeflthe baile @Suitable ereinfefei-ng feeds., indeeted. et 20eme-y beepesitfienetl in the @ceiling -19. and -eauleeelfte extenslfliengitudinellvherethieiigh- VV.'llheee eeinfereingrieede may 'be held in peeieteni end.- eenne .1tfed-V together by :Suitable ties f2.1,ewhiel1 may 'be' ,passed ever the .eableer .tie :eed-.1 8- At-theffeeme time-.the Marielle reeeeeeewliiehfareileftiexpesed and infwhiehthe lee-ile 1,6 are leeeteel. mayqbeeilled with e011- :.130 erete fee. thetwfthe .eetireetruetiine .presente e -neet and atteeetive appearance, :and rusting .-Qfetheeteel ie; inemented presents `van @inwardly .and rearwardly inelnedeiiter feuiziaee so that .Nieves .er surf i .Jareekingfentlie Sunfeeeawillmim .upwardly thereon instead of pounding the blocks eaaineifeeeh ether- Whateverffencesare eX- Y:. erteelleystliewaves against lthe Outer endlef theigrein urge the fbleekeegeinst .eeehother .instead .ef ltendi-ngfte vseparate them. -By v i-rtai-e the 4vfleet, :that the sides :of the .blocks upwardly fand-)inwardlyfineliiied., waves breaking:egaixietfthesieleefefihe seein WillA @e5 elewlupwerdlyienetlieeefinelineel sides and elle tendency :te ererturilfthe sreiil leteielly eiereflee .ieeeh bleek :te beieletivelylew thiieeeier- 1 turning. is @effectively fresieted-` fflhemnneeeigreie eenstriietieepievdes Y feriliexibilityin Settlement by -vietiie .of the f1-eet that eaeli bleelfreen settle 1i1.idenenfleiitly the athene Y. .during felle v.settling per-iedellher-inneeenee ef :merengues .and grooves" -011 -,the bleeke rendete AY,tleegrzein Ysand might .se llfe'hsandfeanwt bewahed .through 'between fthe bleeke- During-.the eettlingperied. and

Y ineheeeent thaetlie eeniegfie. Permanently,

,left Q.i, it wvillfhe netedethetfthle yiimnrme'cl seeinA presents-eseiiveteltepfee that meeverf'peiir'ef :wares breekngzever the grain .will .zbefelleetively breken- .up- 'Y iByMietue @fthe ifaetftliat -.the blocks ,are

e5 .ehaneeiidheiieiupwerd- -Qtofsettle independentlyof others lalso assists lin vprotecting theimproved groin against be-Y ing undermined. r `It Wilt-be noted thatlthe .crossfsectional shape ofeachblock corresponds to the crosssectional shape of the finished groin so that v.in erectingthe'groin it is merelynecessary to first prepare all of the blocks necessary and ,their leythein in peeitien Ione after the/.ether from the shore outward Zintothesea.

Erem the above described ,construction it .will be appreciated that an`v .improved lgroin constructionis providedl Which is simple and -Ywliiehmay heeeeilyfeiid quieklyfereelied with faimiiiimum :amount ef labor.

larious. Changes may Joe ma'del'lin the details of construction Without departing from .thespi-rit orirscopeofthe inventionas Qdefgned @by the appended claims.

Weclaim: g I Y, v 1- A grenier seamen-ll eemprising. ,a series .ef eenerete bleeke .eentigueiislygpeetiened, Y,seid bleekeheing.upwardly and .reerweiffllyA inclined-toward- 1the .,shore, ,and having- ,up- Y .warell-yenveiging-sides-'Y' v A4lt1Will-flee;notedrx hetathe enten-mest vbleek .-ef .Concrete blocks eontigueiisly peSitiQne/d,

.2. A greriie'faeee .'Walleeiiipiierlge .Series said blocks being-upwardly andrearwardly `iiieliiieel toward, lthe @here-having rib and Iareeue eenneetieiis with .eeehethe reprelventylateral displacement, and having" upwardly eenvergng eldes.-

. 3- Aigreiii er Seefwell cempnisingeseriee of solid concretev blocks contiguously plosi- .teneflll seid, hleek'e .being .0.5. ,approximately the ee-me -Sliene enel height .and :extending from Substantially. iheiepnef the well telflie betteln thereof., 'eaeh .bleek preeentingiglewnerellydiveigeet.Sigles.eiiilfleeingrezirwardly 4. A'groin or sea WallV oomprisingajseries ei ,Solid eenerete bleeks -eeiitigueilly Pos1- tiened, Seid Lbioeksbeing ^ei eipnreairiietely the seine ,Shape .end heighteiid extenflilig Werdly dvergentsifleeend being :rearwardly 5.- Aglein er. .Seewall .elempiieing es Series of solid ...eenerete bleelisveeiitiguoiiely. positioned, said blocks beingpfapproximately .theeame shape.' enel height ...and extending from substantially lthetop. of the Wall gtoV the .,bgiaomehereef, .eelehibloek preeentnggdeevn- Wardly ,divergent,sidesenflbeing rearwardly guinea powa-'saalesmrehaileembedded in .ii-ein seb-Staiitiellv.tle y.te-1e ethe Wall teilie .bettem ,thereeteeeh bleek presenting .flownthe tops of the blocks and projecting therefrom, and a coping poured over the tops of the blocks enclosing the bails and joining the blocks into a monolithic structure. 5 6. A groin or sea Wall comprising a series f of solid concrete blocks contiguously positioned, said blocks being of approximately the same shape and height and extending from substantially the top of the Wall to the 10 bottom thereof, each block presenting downwardly divergent sides and being rearwardly inclined toward the shore, hails embedded in the tops of the blocks and projecting therefrom, and a coping poured over the tops of 15 the blocks enclosing the bails and oining the blocks into a. monolithic structure, said coping having reinforcing rods extending through the hails.

In testimony whereof We have signed our names to this specification.

CHARLES T. LEEDS. WILFRED K. BARNARD.

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