US2095012A - Paving brick - Google Patents

Description

Oct. 5, 1937. o. w. RENKERT PAVING BRICK Filed Sept. 8, 1936 gmc/wko@ ll'ver Wlzeri /1 ff@ /l /2 Ilja' f "4 Patented Oct. 5, 1937 UNITED STATES PAVING BRICK Oliver W. Renkerhcanton, Ohio, assignor to The Metropolitan Paving Brick Company, Canton, Ohio, a corporation of Ohio Application september s, 1936, serial No. 99,740

A Claims.

The invention relates to paving bricks for roadways, and more particularly to paving bricks having lugs thereon for providing joint spaces for binder or filler material between adjoining bricks.

5 Prior constructions have included bricks having lugs on one side only for abutting the side faces of adjoining bricks and lugson both ends for abutting end lugs on adjoining bricks.

One difficulty with these prior constructions is that when the bricks are laid end to end in a pavement and then rolled to level the same, the abutting end lugs provide pivot or hinge points about which the bricks may swing or pivot, with the result that the bricks in each course tend to get out of alignment.

Another difficulty is that during the laying or subsequent rolling of the bricks to level the same, the abutting lugs of adjoining bricks tend to j move or slide late-rally relative to each other and 2O Wedge or interlock, causing further misalignment.

Of course, the end lugs of these prior constructions could be provided on one end only so as to abut the end face of adjoining bricks and thus eliminate the interlocking of the lugs, but the bricks could not be turned end for end, and this is a very necessary expedient in road paving. The numerous surface defects which are bound torbe present in the surfaces of the bricks are usually present in the top or bottom surface but not both, and b-y turning the bricks a large proportion are used which would otherwise be discarded.

It is therefore an object of the present inven- 35 tion to provide an improved paving brick having end lugs which will abut adjoining bricks in such a way as to prevent misalignment of the bricks due to hinging or pivotingV thereof during the rolling operation.

Another object is to provide an improved paving brick having end lugs which will abut adjoining bricks in, such a way as to prevent misalignment due to interlocking of the lugs during the laying or subsequent rolling of the bricks.

Another object is to provide an improved paving brick which can be turned end for end Without changing the relativeV positions of the end lugs of adjoining bricks.

50 A'further object is toI provide a paving brick which will provide proper end to end joint spaces between adjoining bricks regardless of variations in the alignment of the side edges of the bricks.

A still further object is to provide a simple and 55 inexpensively made paving brick which willI accomplish all of the foregoing objects, and which is easy to handleand lay in a roadway.

These and other objects are accomplished by the improvements comprising the present invention, which may be briefly described as including a paving brick having lugs on one side only and lugs on both ends, the lugs on one end being located on a diagonal between opposite corners of said end, and the lugs on the other end being located on the oppositely inclined diagonal between corners of said other end.

Referring to the drawing forming part hereof,

Figure 1 is a fragmentary perspective view of a section of roadway made up of the improved bricks, two ofV the bricks being shown apart from the others and spaced endwise from each other;

Fig. 2 is an enlarged perspective view of one of lthe improved' bricks;

Fig. 3 is a fragmentary plan view of a section of roadway made up of the improved bricks; and

Fig. 4 is an enlarged sectional view taken on the end face of one brick, as on line 4-'4, Fig. 3;

Similar n numerals refer to similar throughout the several views of the drawing.

Theimproved paving brick indicated generally at ID is provided on one side face only with spacing lugs il for-abutting the side face of an adjoining brick or bricks so as to provide uniform joint spaces between thercourses of bricks when laid in a pavement. Adjacent each pair oflugs Il is provided a vertical groove l2 of sufficient depth and width to receive the lugs of an adjacent brick, so as to protect the spacing lugs Il when the bricks are stacked for drying or burning. Thus, when the bricks are stacked for drying or burning, the lug side faces of adjacent bricks are turned toward each other.

Practically all paving bricks in present day use have spacing lugs and adjacent grooves on one side only, and when they are laid in a pavement,

the bricks of each course are always laid with the side lugs facing in one direction, and the bricks of the next course with the side lugs facing in the same direction, so that the side lugs of one f course. abut the side faces of the adjoining course parts to provide a uniform joint space between courses.

The top o-r bottom surfaces of paving bricks always have a certain number of lsurface defects, which result from the manufacture or handling thereof, but usually these surface defects donot Y tween the ends of adjoining bricks in a course,

1t is necessary te provide projecting lugs on the ends of the bricks. WInc/order to provide for turning the bricks end for end, these lugs must be placed on both ends of a. brick, and in such a Way that if the brick is turned, the end lugs will be Vin the same relative position to the end lugs of adjoining bricks. v Y

Where the end lugs of a'brick are .vertically spaced one above the` other, they provide pivot-1 or hinge points about which adjoining bricks in a coursemay hinge or pivot; particularly When Ythe pavement is rolled, causing misalignment of the bricks in a course. Where the end lugs abut end lug'sof adjoining'bricks, they not only tend to cause pivoting or hinging, but also are very apt to slide laterally of each other'during the layingv o-r rolling of the bricks, Yand wedge or inter# lock with each other to cause serious misalignmentof the courses.

Y The present improved brick I0 has lugs on both ends, which pro-vide abutment with the end Yfaces of'adjoining bricks at laterally andV vertically spaced pointsiso Vas to prevent any pivoting or hinging of the bricks, or anyinterlocking of the end lugs thereoffgMoreover, the improved brick can be turned end for endwithout changingthe relative positions of the end lugs of adjoining bricks. l y, i Y -The brick Ihas -atthe'rect'angular end yface I3 aepairof projecting lugs I4, which lare diagonally spaced preferably at each sideofivthe center of :said end face I3A of the brick, soars-t0 be Vin `laterally-opposite portions and Vdiagonally opposite quadrants of said end faces.' These lugsVV I4 are preferably located substantially on adiagonal indicated. at lifextendingbetween opposite corners -I6 and I'Iof the rend face, and eachlug- I4 isnearer to corner I6 or ILV-respectively, Vthan to the other corners'thereof. Y. The other corresponding :ende face- I3l Vhas thereon a. pair'of diagonallyspaced lugs- I4', which arerspaced at each side of .the centerof said-.end face, soja's to bein laterally'opposite portions and diagonally 'opposite quadrants thereoLand Y preferably located 'substantially on the diagonal I8, which extends betweenthe corners I9A and 2li of end face I3', and which diagonalisoppositely inclined to thediagonal I5Yof vtheo-therV end face, of thebrick. Thus,then corners I9 and 2li are opposite diagonally tothe corners I6 and I'Land each lug, I4 is nearerto. corner I 9, or.20. respectively, than to the` other cornersY of end face I3'. Y. It will be seenthat if the brick I Gis turned'end for, endV toplace the bottom surface, uppermost,

. the end lugs l 4f Will occupy a position correspond-V ing tothe end lugs l! inl Fis. i Y

`-When. the bricks I0 arelaid in a. pavement with the side lugs II Y,all facing thejsamegdirection, as

shown in ligtrl,V the VVend lugs I4 ofreach` brick will abut the end face; I3 of an adjoining brickY atv diagonally spacedpoints, and the end lugs I4'of said vendface'A I3VWil1 abut the vend facef'l3 o`f`the`jfirst` brick at roppositely diagonally spaced pointsir Y a Thus, as best shown'in-Fig. 4,"the end lugs'of adjoining bricks provide four laterally andfver-i tically spaced abutments with the adjacent end faces of said bricks, so that the bricks. in each course are maintained in accurate alignment and there is no possibility of anypivoting or hinging of the bricks or of any interlocking of the lu s. Y

gObviously, the end lugs I4 and I4 may be located slightly to one side or the other of their respective diagonals Without departing from the spirit of the invention, as long as the lugs on one end of a. brick are correspondingly spaced to the oppositely diagonally spaced lugs on the other end;

As shown in Fig. 3, When thepres'ent improved bricks arelaid in a pavement, the side lugs and -endlugs'abut adjacent side and end faces and "provide'uniform joint spaces at all sides of each handled and laid in a roadway in the saine v manner as prior types of paving' bricks., Also, a when the improved bricks are'laid in a roadway and subsequently rolled to level the same, accurate alignment of the courses is maintained-and uniform joint spaces on all sides of the bricks are positively insured. 1 AIclaim: l. In a brick pavement, a plurality of bricks laid end to end, each brick having spacinglugs on one side and two diagonally spaced lugs on each end located in laterally oppositeV portions thereof, all of the brickshaving their-sidespacing lugs facing in theijsame directionyand the lugs oI"V each end abutting the end faceof anadjoiningbrick regardless of `whethervthe top or bottom faces of either of two adjoining bricks are placed uppermost.VV Y, v j

. 2. A brick having a pair of lugs projecting'from of said end, andthe lugs .on the other .endlbeing located on an oppcs'itely inclineddiagonal Vand in laterallyfopposite portions of `said-other end:

3. In a-brick. pavement, a 'plurality of Vbricks Veach end, the lugs on one endbeing locatedon i one diagonal and :in laterally oppositeportionsV whereby the Vend lugs always abut end faces` I of adjoining bricks.

' 4. A brickhaving rectangular end-faces, a pair of lugs projecting from each end face,the .lugs on one end face being Vlocatedindiagonallycopposite` quadrantsA thereof andjtheA .otherj twoY quadrants being plane, and the lugsfon the other end face being located in the.Y quadrants corresponding tothe plane quadrants .of 'the oneV end face.I .Y 5. VA brick havinga pair of lugs projecting from each end, the Vlugsvo'n one end being locatediin an inclined line and in laterally opposite portions of said end, and the lugs on thel other end ,beingr located y in an" oppositely f inclined line and in laterally opposite portions of saidotlier endl.` f

Y OLIVER W. RENKEa'r.

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