US1643024A - Sectional rubber pavement - Google Patents

Description

,kent. 20, 1927.

A.-F. MASURY ET AL SECTIONAL RUBBER PAVEMENT Filed July 17, 1924 2 Sheets-Sheetl ATTORNEYS 1 4 1643,024 Sept 927 A. F. MASURY ET AL SECTIONAL RUBBER PAVEMENT Fi-ld July 17, 1924 2 Sheets-SheetZ WW T mg drawings illustrating preterr'edlembodivPatented Sep t. 20,- 1927.

Arrnn n airmig tiip e w w nstnrrnnr; or NElW 'YOBK, N. Y; nssrenons TO I TERNATIQNAL oron COMPANY, or new ironic-N. Y., AcoRPonATIoN-oF E AWAR This invention relates a roadways and I 10 suchltravel. 'Sucha'paving is broadly illustrated inthe copending'application of August I-IJLeipert' SeifJNo. 722,648 filed June "2111924.. 'The present invention has to do primarily with various practical applical5 tions fofthefbroad"principle described in the.

I application; Inorder'thatthe invention may be clearly understoodfand readily carried into efiect the'sam'e will now be described more fully with. reference to the accompanyments thereoffand' in which:

V form otpavifig block andftheineans for maintaining it" under internal static pressurewhich also serves as interlocking means with adjacent blocks j I jv bigure'2 is arvlefwmsrde elevation show-i ingthepavingblock according to Figure" '1. v

Figure 3 ti'sj a'p laniview showinganother modification of thefpavi'ng"block 'and the I so Figure 4- is a'yertical' seotional view taken inthe' planeindi'cated-by' the line 4 in F igure- 3 and looking in the direction of the arrows. p f Figure 5" is aview partlyin section of another modification ofthe invention showing- I the means for adjusting "the compression on;

an individual paving block."

--Figure- 6 is a view showing the pavlng block "illustrated in Figure '5 e and looking from above. I

F igurejis a verticalsectional view showing anotherflform 'of ,-:paving block and the mechanical "means for retaining it under compression. s

Figure 8 is a View showing the paving block disclosed in Figure 7 and looking from above. 1

Figure 9 is a view showing another modification of-the pavement according to the present, invention and means for placing the individualblocks under compression.

V disposed means for maintaining it under-compress1on.*

snougronnn RUBBER rnvnivrnnri It is Proposed} accOrdinglto' th Present invention, that the paving block shall consist of a'massoffyielding material, such as live rubber, suitably associatedwith' means which" may varyin particular instances to sure; By'so retaini'ngthe block the 'resil '1ency,stre1rgth'and wearing qualities of the yielding mass are'materially improved. In

Figures 1 and 2 of the drawingsthere is illustrated'a block comprising a solid mass" ret'ain the block under internal static presbase I) to form apavement'and' encircled 7 throughout the major portion'of its height I by a band'c of metallic material drawn tight- 1y about the block whereby the'resilient ma terial therewithin' may be maintained under compression. The two free endsof the band are preferably interlocked as at c" to form jection or tongue on "that end face of the p p c f l t. only a permanent joint but also a prop I Figure l isa sectional vlew showlng one band-"to interlock with'a co operating groove c in the'respective diametrically disposed faceo'f'an adjacent block. It will'thus be se 'an"that; apaving block has been provided which"issubstantially rectangular in horizontal oro's'ss'e'ction and which is formed in one of-its'shorter e'ndfaces with a vertically groove and in the other of its shorter end faces'witha vertically disposed ton uel lVhen laying the pavement," the bloc s are 'laid'betw'een the curbs'so that the proximate en'd faces 'are juxtaposed which will serve to compress somewhat the uncompressed edges a to form a'solidyieldbetween the respective blocks;

In Figures?) and 4;;there is disclosed a plurality of paving blocks in "which the lng pavement without cracks or open oints sha ebf the respective blocks'is relied upon to maintain the same under the desired The blocks are internal static pressure. formed generally wedged-shape in horizontal cross'section so that in'laying the same between the curbs b an individual block may be forced in a horizontal direction between adjacent blocks. One of the blocks cl is shown as formed in opposed vertical faces with horizontally extending grooves d adapted to co-operate with the horizontally extending tongues e of the adjacent blocks 6. The longer sides of blocks d and e are 7 to receive the wrench engaging portion 'with-thebeveled faces f of the block. Midway between the ends of the grooves f the block is further hollowed out slightly as at g of the lag screw. It will thus be seen that 'upon assembly of the lag screws 9 and recs tangular retaining elements 72/ the block may be placed under compression by taking up on the lag screws in usual manner. As a pavement, the blocks are laid upon a solid base 6 in close proximity, the top and bottom faces of the block 7, f respectively taking the wear and spacing the metallic portions from the contacting elements 7 whereby shocks and stresses are relieved.

In Figures? and 8, means are disclosed for obtaining substantially the same result's. In this instance, substantially rectangular blocks 5 having beveled edges 2" are retained'under'compression by rectangular metallic frames 7' whereof the extremities j are turned away from the resilient material to avoid a sharp edge which would wear the material, while the proximate edges of the plates j are interlocked as at jl It will be apparent that, upon assembling the block 11 with a pair of frame mem-. bers j, the block can be placed under the desired internal compression by suitably bending over and interlocking the proximateedges "at 9' Here again the surface of the block resting upon the base I) is of yielding character as well as the top surface subject to wear, the turned over edges 7" .being sufficiently spaced from the wearing surfaces to avoid all metal contact with either the base or traffic passing thereover.

Referring now to Figure 9, the blocks is may be either square or oblong in horizontal cross section. In this instance only the upper edge is beveled as at k. The curb may. have an overlying portion 12 with which the bevel k engages while the proximate block K may be spaced from block 7:: to receive an inverted frustro-pyramidal yielding member Z bored centrally as at Z to receive bolt m. If desired the head m of bolt m may bear upon a metallic seat member a to minimize wear on the yielding material. Bolt on maybe either an expansion bolt or a bolt of the usual kind in which'event the threaded end may engage the threaded hole of a metallic nut 0 cast in the concrete base b. Upon assembly, by screwing the bolt into. the nut 0, the seat member 'n, is caused to compress the beveled resilient retaining member Z which in'turn engages the beveled edges is, k of adjacent blocks to cause all of the resilient blocks to be retained under internal static pressure ina manner which will be readily understood upon inspection of .Figure 9.

Various resilient blocks and means fo'r'f retainlng them under compression and the V manner of assembling them into a complete pavement have been disclosed. It will be understood that the invention is not to be limited to the precise relation of elements illustrated in the drawings but various combinations thereof will occur to those skilled in the art and are to be deemed withinthe scope of the present invention.

.WVhat we claim is l. A paving block comprising a block of rubber and means to retain said material under compression. 7

2. A paving block comprising a block of rubber and metallic meansencircling a portio n of saidblock to retain the material under compression. i

3. A paving block comprising a block of rubber, metallic means encircling aportion of said block, and meansto causesaid encirclingmeans to maintain said block under compression.

4:. A roadway comprising a rigid, solid.

base, blocks of rubber supported on said base, and a" plurality of means to maintain said blocks under compression. v I

5. A roadway comprising a rigid, solid base, blocks of, rubber. supported on said base, interlocking means, and] a plurality.

of means to maintain said blocks under compression.

This specification signed this l i day of July A. D. 1924.

ALFRED F. MAsURYf AUGUST H. LEIPER' I.

Images