US890902A - Pavement and method of making the same. - Google Patents

Description

PATENTED JUNE 16, 190s.

, i .E. HASSAM. PAVEMENT AND METHOD 0F MAKING THE SAME.

APPLIOAMTION FILED JUNE 20,1907.

la? ari Worcester,

UNITED sTATEs PATENT oEEIoE.l

'WALTER E'. HASSAM, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO HASYSApM' PAVING COM- PANY, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

IATMJEMEIIT AND METHOD 0F MAKING THE SAME.-

Nofsedeoa.

Specification of Letters Patent.

A Patented June 16, 190s.

To allwhom t mag/concern:

Be it known that I, WALTER E. HAssAM, a citizen of the United States, residing at in the county of Worcester and State of Massachusetts, have invented a new and useful Pavement and Method of Making the Same, of .which the following is a speciiication.

This invention relates tol a pavement or similar structure for streets and the like. f

The principal objects of the same. are to 'provide a construction which will be of increased'strength and rigidity without'any increase i-n the amount of material employed in it, and in which, in certain cases, the amount of'material and thickness of the pavement may be decreased on account of the additional strength im arted to it.

Other objects o the invention are to provide -an improved means and metho of holding a wire-netting or reticulated sheet of metal within layer of stones c the body of the pavement lin such a way that it will be securely fastened to separated parts of the pavement, whereby even undergreat strain 1t lon itudinally or sidewise. Y

urther objects of the invention will appear hereinafter.

Reference 1sto be had to the accompanying drawings, in whichy Figure 1 is a erspective viewof a portion' of a pavement s owlng one form of the invention, vand Fig. `2 is a similar view showing another way-1n which the invention canfdie I carried out. This invention is a plicable to various forms of pavements. is to be understood that vthe pavement may have a foundation of any desired'kind or character in addition to what is shown in the drawings, if desired. 7

In Fig. 1 is shown abottom layer a of stone, either broken or unbroken. In this form of the .invention these stones are placedeither at th'e bottom of the excavation 0r on a'founed or` dation in a dry state, and' rolled, tam

otherwise compressed to forni -a .soli bed.

lThen -while they Iare still in a Vdry state, a wire netting b or 'pieceof reticulated met/al 1s placed on the top of these stones, and an additional layer clsimilar to the layera. i's placed upon it andcompressed in a similar way.

It will be seen that the compression of the on the wire netting b which rests on the top of the stonescwfilresult in forcingcertain of the stones fin-:ft elayer c fthe body of. t e

Will not slip either plied so. as to run down between the layers of 'stones and-between them and the wire netv Another way intothe wire netting, bending it and distorting 1t in such a way that while itsgeneral shape and dimensions are not aiectedrit will l be provided `with small depressions which will extend into the spaces between the stones in the layer a. l holding or anchoring the lower layer and between the layers so that if anyse'rious disturbance occurs atone part of. the pavement, the strains on the wire netting will be transmitted to various'parts of thel pavement at great distance from 'thedisturbf ance. In this way it -will be seen thaty the netting will not 'be allowed tube pulled long lgitudinally or laterally in` the body of the pavement under any ordinary circumstances, and. that it will effectively resist 'any strain to which it is likely to be put in practlce.

. I prefer to make the two layers'of stones of approximately equal depth sc 'thfat the nettlng may be about 1n the middle of the pave- This will result insecurely wire netting onfthe" ment, whereb it serves as' -a strengthener in avement itself. After the layer c is lacedm position and compessed as above escribed, groutingis'prefera lyapting. When this hardens it securely holds the netting'in placein addition to the means for ldoing sofas described above. It will thus be seen-that the netting is not only securely held inposition'duringtm construction of' the pavement, and'during the drying 'of the grouting, but it is permanently held 1n posi- 'tion by the grouting .itself after that has hardened..

y in which the invention may be carried out is illustrated in Fig. 2. In this Acaseafterfthe layer of stones ais .'Inboth cases the u vper layer of stones is preferably compresse on the Awire netting, Y

vand the to of. the pavement is preferab dressed loff ythe provision of a surface coatingfi. "This-may be of any desired charrolled, tamped or compressed, a grouting surface 1s be seen that the wire netits acter and may be applied separately from the grouting or it may be composed of surplus grouting which is applied to the top layer of stones.

It will be seen that this method of constructing the pavement is simple and efficient, while thebpavement itself is of a great strength, and on account of its strength it can in many cases be made of a less depth than has heretofore been the case.

While I have illustrated and described cer tain forms in which I prefer to carry out the invention and certain steps in the process, I am aware that many modifications may be made therein by persons skilled in the art without departing from the scope of the in vention as expressed in the claims. Therefore, I do not wish to be limited to the particular construction and steps in the process set forth above, but

I/Vhat I dp claim is 1. A` pavement comprising a compact layer of stones, a' wire netting thereon, a layer of stones above the wire netting, and grouting uniting said layers of stones and wire netting.

2. A pavement comprising a compressed layer of small stones, a Wire netting thereon, and a layer of similar stones above the wirev catingthe Wire netting above the layer, ap-

plying a second layer of stones of a similar character above the wire netting and compressing said. second layer while in a dry state on the Wire netting so as to project the bottom stones of the second layer into the netting, and 'finally pouring a grouting over said stones and permitting the groutlng to run down through both layers so that when it hardens it will unite the two layers of stones to the wire netting.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

WALTER E. HASSAM. lVitnesses JOHN H. CRANE, JAS. W. MURPHY.

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