US869181A - Constructing or paving street, road, and other ways. - Google Patents

Description

No. 869,181. EATENTED 00T. z2. 1907.

J. D. HENDERSON.

CONSTEUGTING 0E PAVING STEEEE, E11/1N, AND OTEEE WAYS.

APPLICATION FILED MAR-14. 1906.

2 SHEETS-SHEET l Flc. 7.

Nq. 869,181. PATENTED 00T. 22. 1907.

l E. D.- EENDEEsoN. GON'STENGEING 0E PAVING STREET, EoAn, NNE oTEEE WAYS.

APPLIOATION FILED MAR. 14, 1906.

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i 7 are further views, as will hereinafter appear, on an en- JOHN D. HENDERSON, OF EVERETT, MASSACHUSETTS, ASSIGNOR TO llENDERSOhv TRAPO-CRETE COil'lPANY, OF BOSTON,

MASSACHUSETTS.

MASSACHUSETTS, A CORPORATION OF CONSTRUCTING OR PAVING STREET, ROAD, AND OTHER WAYS.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed March 14:. 1906- Serial No.' 306,065.

T0 all whom it may concern: l

Be it known that l, .lonN D. H'nNnnnsoN, a citizen of the United States, residing at the city ol' Everett, in the county ol Middlesex and State oi Massachusetts, have invented new and useful Improvements in Constructing or Paving Street, Road, and other Ways, ol' which the `following is a specification.

This invention in the construction, or building, or i paving ol street, or other road-\vays, -tlie same having been prepared or subgraded as ordinary, or well known or otherwise s11itably-,-consists in covering the subgraded, or prepared bed, with a layer or binder, one inch, or more or less, in thickness, (an inch being practically sufficient) consisting oi clay and gravel, or hard pan, as it is known, and over and on which is then placed a layer, four inches, more or less, in thickness, (lour inch es being practically sufficient) ot crushed or broken stone, macadam, which is so rolled as to incorporate therewith the said binder and thereby produce oi and from the two a single, compact, close and hard layer, and then on this so combined layer, evenly disposing a layer oi crushed or broken stone, two inches, or more or' less in thickness, (two inches being practically sutilcient), which said broken stone in its several particles or pieces is such as would be gaged or determined by a ring or mesh o two and one hall' inches or thereabouts, and then coating in any suitable manner, this layer ol broken stone with a liquid tar or other bituminous preparation and then disposing and finally working into and hlling the voids or interstices between and among the several particles or pieces of said upper strata or layer of broken stone, a bituminous or Atar mixture together with small particles of stone, such, for instance, as what is commonly known as pea stone, all suitably heated, which, in substance, completes the construction oi the paving, or the street or other road-way in accordance with this invention and as will hereinafter more fully appear.

In the accompanying drawings, forming part oi this specication,theseveral figures l to 5, both inclusive, are similar vertical cross sections, from curb to curb, illustrating the construction of the paving, or road-way, at its various or successive steps or stages, and Figs. G and larged scale compared with the preceding Iigures,` lor the purpose of better illustration ol' the several steps in the construction oi the pavement.

In the drawings, A and B are the two side curbs ol the road-way.

C is the sub-graded bed.

D is the binder layer, which may he of any suitable material, and is sprinkled, or otherwise loosely disposed upon and over the bed C, to the thickness of an inch, or thereabouts. I

E is a layer ol crushed` or broken stone, or macadam, as well known, on iop ol the binder layer D to the thickness of four inches, or thereabouts, and which is then rolled compactly and closely together forcing the same into the binder D, and the binder into and throughout the voids or spaces or crevices between the particles ol stone and making the whole, hinder and stones, into a common layer, such substantially as shown, Fig. 3.

F is a layer oi broken or crushed stone. The size oi the several particles o this layer is determined by a ring or mesh ol two and one hall' inches, or thereabouls, as well known, and they are evenly spread or disposed over and upon the common layer before explained to the thickn oi two inches, or thereabouts, leaving voids or crevices or open spaces between the particles, illustrated, Fig. 4. The upper surface ol this layer F is. then evened oil and covered with a liquid tar or bituminous preparation, and then the crevices or voids are lilled with a tar, or other such like mixture combined with small stones, such as the well known pea stones, while the same is in a suitable heated condition, and firmly compacted together by rolling, which completes the construction or pavement ol the road-way, see Fig. 5, and in which the larger stones form the wearing surl'ace or' the pavement.

A pavement or road-way produced as above described is most solid and compact, and its wearing and lasting qualities are most durable, eilicient and desirable in every respect, and to the highest degree, as has been practically demonstrated. Furthermore it is most inexpensive in comparison with other well known roadways or pavements.

With a view to more clearly illustrating my method, Fig. 6 shows perspectively the dilierent stratas oi material in the process ol construction, while Fig. 7 on the right side clearly illustrates the way all parts are lorced toward and into each other, the pea stones in the top crevices or voids and the binding or hard pan when eompressedas in the linished roadway, the portion on the left being shown in a loose state to more clearly show the normal state of the material, provided l did not choose to roll the layer ol stone E previous to putting on the top F, or in the event of 'not putting the small pea stone on aiter the top layer had been rolled.

The only reason for not allowing them to remain loosely qid@ but after Minn- Wiu SM1] 10W@ th@ mp Uf Mq l tour inehes or so in thickness on, :rnd rolled or otherwise Y 7 b i i i layer E tree nud elenn, ready lor the loyer F. Aft er the top layer F is iu plztee and. rolled enough to give nu even top7 it is then rentdT to have the eonted pen stone :ipplied uid es there is no foreign nizrtter to prevent it hav ing n free flow downward to the depth ot' the top ol` the lnyer il the top and bottoni heooinee pr-ietiefllly united i iu one muss, completing` n Solid thieknens t'roin Suhgrade to surface.

l'liiving thus deserilred my invention Whitt l elztini and desire to seeure hy Letters Patent in,

A rondwny eonstl'uet'ed ot' n suitzxhly prepared Huh-eroded foundation: n hiiuier-lnyer eoinpoSed el' elny und .lruvel or hnrdpnn one ineh or so in thickness on Suid toum'izltion; n loyer eonlposed ot' hroken or crushed stone or ninendzun suitnhly worked into :1nd interiningled with snid hinderlnyer; :l lm vei' composed ot broken :ind crushed Itone the pieeef: ol which ure two und one hull ineheI or so in ze e\'enl.\v disposed on Suid interiningled lnyerf und :l lztyer Composed ot' n mixture ot' pen or other h like `wnnll rwt'ones :1nd t'nr or hituinen, hoth of which hetore heng: niixed und luid hure heen hezlted, und thntV is rolled or otherwise ynuitnhly worked into :ind mudo to till the voids hetween the pierces ot sztd broken or erushed r lono und to present, :1nd to constitute such stones :is the went-in; urt'uee ol' the rondwatvA nil suhstxuit'inlly :is deserihed.

In witness whereof, i hnve hereunto set, in v hund in the presenee ol' two suhserhing witnesses,

IOIIN I)A IIENDIRHSUN.

Witnesses Ammer' thrown'.

HuttonA (univr-ux.

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