US1674787A

US1674787A - Invisible-track highway

Info

Publication number: US1674787A
Application number: US686210A
Authority: US
Inventors: Stuart B Moore
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-01-14
Filing date: 1924-01-14
Publication date: 1928-06-26
Anticipated expiration: 1945-06-26

Description

Junevze, 1928, 1,674,787

S. B. MOORE INVISIBLE TRACK HIGHWAY Filed Jan. 14, 1924 lil rented .lune Z6, 1928.

STUART B. MOORE, OF PINEVILLE, KENTUCKY. Y

INVISIBLE-TRACK 'HIGrI-IXVAY.

Application filed January 14, 1924. Serial No. 686,210.

rlhis invention relates to invisible track roadways in which reinforced track ways are associated with and form a part of the roadway. i

In constructing the roadway in accordance with this invention it is proposed to pour the roadl preferably solid and to provide therein track'ways reinforced to insure a continuity of surface irrespective of varying climatic conditions, these track ways being separated by thin areas relatively weakened thus offering the possibility of producing a slab that will be suiiiciently HeXible to compensate for the heaving or settling of the road bed.

The manner-of constructing my improved 'roadway as well as the novel features of the same will be made more apparent as this description proceeds, especially when considered in connection with the accompanying drawings, wherein:

Fig. 1 is an elevational view of a section of roadway showing successively the various stages of construction, and

Fig. 2 isv a transverse sectional view of the completed roadway.

Referring now particularly to the drawings wherein like reference characters indicate like parts, it will be noted that the earth surface as shown in Fig. 2 is graded to form a road bed 10, the width of which is defined by the sides 11 thereof, the surface of the road bed being graded so as to provide longitudinally arranged ridges or mounds 12 alternating with longitudinally arranged depressions 13.

The road proper is formed by pouring upon the road bed a slab of concrete 14, there having been previously arranged in spaced parallel relation a plurality of sets of reinforcing bars 15, the several sets of which are each tied together by a .plurality of suitably spaced wrappers 16. lllhese reinforcing bars are disposed longitudinally of the roadway as clearly illustrated, and parallel with and adjacent to the thickened portions of the road way which constitute the track ways 17, it being understood that the roadway illustrated herein is a double track highway.

In pouring the concrete slab 14E forming the roadway provision is made for grooving the saine at a plurality of longitudinal points as illustrated at 18, these longitudinal grooves constituting weakening grooves. particularly in view of the fact that they are disposed along the thinner portions of the slab 14 or in other words, in the portion of the slab 14 which is poured upon the mounds or ridges 12 of the road bed.

'ihere is thus provided a poured solid roadway embodying reinforced invisible track ways, the entire solid slab however, being sufliciently flexible by reason of the longitndinally arranged relatively weakened portions toconipensate for the heaving of the roadway and road bed in the cold weather and the settling of the roadway and the road bed in warm weather. In other words, the swelling of the road bed will break the slab 14 at the pre-determined points of weakness and the continuity of the surface of the track ways will be preserved.

it has been found desirable, although not necessary, to surface the roadway with a coating of rock, asphalt or bitumen v19 it being preferable when this coating is einployed to recess the surface of the slab 14 thus providing sidings 20 for confining the surfacing material to the roadway.

It has also been found desirable, although not necessary, to provide along the longitudinal center of the roadway a traffic dividing monument 21 which may either be continuous or arranged at intervals and is employed for dividing traffic and forcing the same over the two track ways. Obviously this traffic dividing arrangement may also be produced by making deformations in the roadway or by marking the roadway.

From the foregoing it will be immediately apparent that a roadway is provided in which the reinforced track ways thereof are protected from rupture by providing predetermined lines of weakness upon which the rigid slab forming the roadway will break, thus eliminating the possibility of cracking lthe roadway in jagged lines across the same as now occurs. It is of course apparent that other means could be provided, such for instance, as the insertion of a line of bricks, for weakening the slab so as to force the cracking along the predetermined lines constituted by the bricks, but l regard the grooves as the most practical.

While an embodiment of my invention has been described herein in some detail, reservation is made to make such changes in the same as may come within the purview of the accompanying claims.

Having thus described my invention, what I claim is l. In a roadway, a poured .slab of hard material such as cement provided with track ways arranged uponl a roadbed graded to forni thin area-s in said slab, said slab being provided with a weakening device adjacentv said thin areas forming pre-determined lines of weakness.

2. In a roadway, a poured slab of hard materialI such as cement arranged on a roadbed graded to provide thin areas in said slab, reinforced track ways formed in said slab, said slab'beingformed with pre-determined lines of' weakness arranged betweenl a poured solid slab of hard material such as' cement, invisible reinforced track ways formed in said slab during pouring, the road bed being graded to produce relatively thin areas inl said slab between said track ways, said thin areas beingy provided with a weakening device producing pre-determined lines of weakness.

5. An invisible track roadway comprising a poured solid slab of hard material such as cement, invisible reinforced track ways formed in said slab during pouring, the road bed being graded to produce relatively thin areas in said slab between said track ways, said thin areas being provided withav wea-kening device producing pre-determined lines otweakness and a surface ofbitumen on said slab. The following specification signed at Frankfort, Ky., this 28th day "of November,.1923. i v Y f i' STUARTl B. MOORE.