US2047119A - Road and like paving - Google Patents

Description

July 7, 1936. B. STORAGE ROAD AND LIKE PAVING Filed May ll, 1954 3 Sheets-Sheet 1 ffy July 7, 1936- G. B. sToRAcE 2,047,119

ROAD AND LIKE PAYING Filed May 11, 1934 5 Sheets-Sheet 2 July 7, 1936. G, B. STORAGE 2,047,119

ROAD AND LIKE PAVING Filed May 1l, 1934 3 Sheets-Sheet 5 Patented July 7, 1936 -UMTED STATES ROAD AND LIKE PAVINGl i A Giovanni Battista Storace, Sav0na,"Italy Y Apiilicatin May 11, 1934, serial N0. 725,178

PATENT OFFICE In Italy May Y15, 1933 6 Claims. (UL94-8) Thisinvention relates to4 road paving and particularly to road paving of the type consisting of concrete reinforced by metal frame membersl comprising vertical -ribs Vthe top edge of which remains ata level Awith the road surface, so as to form aV geometrical network. c Y, Y

According tothe invention, I, provide a system of roadpaving of the type referred to, characterized by rows of metal frame members resting on the road gbed and having vertical sides or ribssuficiently high to form cells andso dis-r posed that the sides, of contiguous frame members are nowhere adjacent, so that no metallic surface of comparatively largewidth is formed,

concrete or other mortar being poured in to the quired, particularly resistant and non-skidding.Y These advantages are attained by setting ,onu

the road bed rows of frame members, eachhaving a geometrical shape, preferably triangular or composed o f equilateral or i isorsceles triangular elements forming, by their agglomeration a cellular surface to be filled,l up to the level of the road surface, with concrete or mortar or other road material ller having therequired resistance, but so `as to leave the upper edges of the reinforcing frames at a level withthe road surf f3fc-e-- Y 1 Y i The anti-skidding propertiesrof the road paving according to the invention are obtained by` setting the frames at such an angle tothe axis of the road that their triangular elements are v never` in such a position that any of their sides or ribs Yare parallel-to theaxis of the road and also by taking care that, although the frames are set close to `each other, no metallic surface of relatively large width isformed.- f- This second feature also offers the advantage of strengthening evenly the whole ofl .the road surface, of avoiding waste of metal, and` of` giving an aesthetic appearance to the road itself, owing to the regular distribution of the reinforcing elements,

The invention will be better understood by the following description, with reference to the accompanying drawings, illustrating some preferred embodiments of the invention.

Figure 1 shows in plan the appearance of a corner,such as of a rectangular square, paved with concrete and reinforced according to the invention;

Figure 2 is a vertical section of the road surface. layer, on line II-II of Figure 1; c 5

Figure 3 is a plan view ,of a standard triangular reinforcing frame and of two smaller frames for filling side and terminal gaps in thereinforcement of the road surface;

`Figure 4 is an underneath view of the stand.- 10 ard reinforcing frame as shown in Figure 3;

Figure 5 is a side elevation of the same;

Figure 6 is a planview of a frame with rhomboidal cells, adapted for use as a mid-road line marking; i 151.,v

Figure 7 is a cross section on line VII--VII of Figure 6; Y Y

FigureV 8 shows .in plan a form of ,frameV particularlyadapted for use to round a curve;

Figures 9 and 10 show other frames for use to round curves and ll gaps;

.Figure 11 shows another element adapted for use on curves; ,Y YFigures 12 and 173 show in plan and side view another element adapted to ll gaps and round 25 curves, in combination with the elements shown in Figures 'Ito 11;

Figure14 shows diagrammatically an embodiment ofroad paving at a curve; and

Figures 15 and 16 are plan Vviews of an ex- 30v tensive portion of the reinforcement along a curve, in the rst case by using the elements represented in Fig.V 8 and in the other Vusing elements represented inA Figure 9 to 13. i i Y In the road paving `reinforcement accordin 35 to the invention, rep-resented in Figures l to 5, the standard reinforcing elements are preferably constituted by cast iron frames A, shaped as an equilateral triangle, in which a smaller equilateral triangle, having the corners against 40 the middle of eachY side of the outer equilateral triangle, isiinscribedyinl such a way as to form four like triangular cells. Setting prongs Vl and 2 disposed in pairs, at the base of the elements, at the middle of their sides and at their corners, facilitate the adjustment of the reinforcing elements, bearing in mind that each pair of prongs 2 at the corners, fit between prongs I at the middle of contiguous triangle sides, which must be arranged with their sides parallel to each other.` A ange 2 between each pair of prongs 2 t under the corresponding side of the adjacent frame thus holding the frame in place, even before pouring the concrete. In this way each element is normally surrounded by six similar 55 elements and concurs to form, with parts of the sides of these, six equilateral triangular cells practically similar to the inscribed triangle and having the same orientation with respect to it.

Prongs I and 2 and flange 2', besides helping the formation of the network, naturally contribute to the strengthening of the hold of the elements when sunk into the concrete, and also increase the supporting surface of their base on the ballast or on the road bed.

For filling up spaces at cul-de-sacs and like places, single equilateral triangles B are provided, the length of the sides of which is only one half of that of the sides of the frame triangles A, and with prongs at the corners only. To ll up gaps along the sides of the rows of frames half triangles C are provided.

Along a curved road suitable elements such as the triangular frame D with round corners shown in Fig. 8 or the special frames shown in Figs. 9 to 13 ought to be preferred. These elements can be arranged to fill up a triangular or trapezoidal strip situated either across the road, as shown in Figures 14 to 16, or on both sides of a midroad line, marking the axis of the road, and normally indicated by elements F having rhomboidal cells. The latter elements are fully shown in plan in Fig. 6 and in cross section in Fig. 7. As will be seen in this latter gure, the top surface of these elements are slightly curved so as to adopt the camber of a standard road surface.

The curves may also be rounded by the use of the special elements illustrated in Figur-es 9 to 13 as particularly shown in Fig. 16. To this purpose cellular frame B, Fig. 3 or also frames constituted of two triangular cells E and L (Figures 9 to 12), side triangles H with projection (Fig. 10) and standard triangular frames with this triangular projection H, Fig. 11 are employed, the projecting triangular cells tting within the gap between two adjacent triangles and serving to change the orientation of the subsequent sets of normal triangular frames.

Although frame elements with straight vertical sides or ribs only, and projecting parts have been considered, they can also be shaped with sides or ribs turned inwardly or outwardly, having cross sections of different shapes and they may be provided with apertures or cut out portions intended to reduce the weight of the frame members and elements, as seen in 3 of Figures 5 and 7.

vThe section of the paving in accordance with the invention is shown in Fig. 2, in which G is the bed of the road or the top of ballast on which rest elements A, B, C, sunk in concrete.

The invention can be embodied ina paving in a number of different ways. Thus it is evident that the paving of the road with concrete, reinforced by a triangular mesh work, can be completed by means of simple triangular frames as well as with triangular elements combined to form rhomboidal or hexagonal units.

The metal sides or ribs of the elements of the mesh work can be at or curved in order to t the shape ofl the substructure of the road. Moreover the frames can be provided with flat soles or wide supporting anges or tted with devices to render them suitable for use with gullies, manholes or like fitting as may be used in connection with public service.

I claim:

1. A road paving of concrete reinforced by metal frames, by which the metal frames are made of cast iron and each comprises a number of upright ribs disposed in triangular formation leaving therebetween a number of triangular cells, setting prongs being provided at the base of the corners and in an intermediate position of the side ribs of each pluricellular frame, the prongs at the corners fitting between the prongs on the sides when the different frames are laid in such a manner as to cause triangular cells of like formation as those of each frame to be constituted by the adjacent half-side ribs of six adjacent frames.

2. A road paving according to claim 1, by which the frames designed to reinforce the straight portions of the part of the road between the midline portion and the outmost sides are each constituted by an equilateral triangle having inscribed in its area a like 'equilateral triangle subdividing the area of the circumscribing triangle into four equal equlateral cells.

3. For use in concrete road paving reinforcement, cast iron frames shaped as equilateral triangles in each of which a smaller equilateral triangle is inscribed having the corners against the middle of each side of the circumscribing triangle, so as to form four like triangular cells, setting prongs disposed in pairs at the bottom part of the frames, at th-e corners of each circumscribing triangle and on an intermediatev position of the sides, in correspondence of the cornersrof the circumscribed triangle, whereby the pair of prongs at the corners of each circumscribing triangle t exactly between the pair of prongs on the sides of adjacent triangles and a web or ilange between each pair of prongs at the corners.

4. A concrete road paving reinforcement comprising cast iron frames of the kind outlined in claim 3, disposed with the web between the prongs at the corners under the middle part of the sides of adjacent frames, whereby each fourcellular frame is surrounded by six like frames coacting with the sides thereof to form six equilateral triangular cells similar to those formed by the inscribed triangle of each frame.

`5. A road paving reinforcement comprising normal triangular cast iron frames of the kind outlined in claim 3 in the parts of the straight portions of the road between the outer margins and the midline, frames composed of simple triangular cells and frames composed of a pair of single triangular cells joined together for lling the gaps at the sides and triangular frames with rounded corners at the curves.

6. A road paving reinforcement comprising normal triangular cast iron frames of the kind outlined in claim 3 in the parts of the straight portions of the road between the outer margins and the midline, frames composed of simple triangular cells and frames composed of a pair of single triangular cells joined together for filling the gaps at the sides and frames composed of a normal frame member carrying a pair of simple triangular frames attached to one of the sides for rounding the curves.

GIOVANNI BATTISTA STORAGE.

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