US1578995A - Traffic marker - Google Patents

Description

March 30,1926. 1,578,995

P. R. HOSTETTER TRAFFIC MARKER Filed Oct.- 2, 1924 Patented Mar. 30, 19 26,

Y a 1,578,995 PATENT OFFICE.

UNITED STATES PAUL R. HOSTETTER, OF YORK, PENNSYLVANIA.

TRAFFIC MARKER.

Application filed October 2, 1924. semi mi. 741,266.

' To all whom it may concern:

material that render it visibly conspicuous 1n conincident to the passage of traffic.

Another object of the invention is the provision of a traflic marker formed from, 21 having lnhe'rent characteristics trast to the color of the roadway.

Other objects of the inventlOI will'be disclosed as the description of the'preferred extend outwardly beyond said peaks.

embodiment thereof proceeds.

In the drawings: g Figure 1 is avvert-ical section of my improved trafiic pimple taken in adiametrical planea I v Figure 2,is a plan view of the reinforcement. a

Referring now in detail to the several figures, the traffic marker consists of a skeletal reinforcement, represented in' general by the reference character 1, a body of concrete or the like 2, molded in and about said reinforcement, and an anchorpin 3 having the innerend thereof embedded in the concrete and interlocked therewith. The skeletal reinforcement comprises an annular curb-nosing 4 of metal having an inwardly directly web Theweb ispreferably formedxwith an undulating inner periphery 6, the peaks ofwhich extend deep into the concrete in a lateral direction, the alternating valleys between said peaks permitting undivided portions ofconcreterlto 1e web is also preferably apertnred behind said peaks as shown at 7 in Figure 2 so as to leave the concrete unitarily bonded on both sides of said web. The masses of concrete in said valleys and the bonds of concrete in said apertures are so interleaved in the plane of the web that a circle might be drawn intersecting both said masses and said bonds This insures that there/shall he no definite plane of cleavage between the web and the concrete along which the mark- The marker in its preferred form preferably has the shape of an ellipsoid. That is to say, the bottom is flat while the top is convex, preferably conforming to 'a cur va-t-ure produced by the revolution of a conic section around its axis. Metallic reinforcement. is provided forhbridging the space within the annularnosing this reinforcement taking the form of a cagehaving a flat bottom represented by the rods or .wires 8 and a convex top formed by the rods or wires 9. These rods or wires are anchored to the nosing in any suitable manner, their arrangement being purely arbitrary and not vital to the invention in its broad aspect. In the preferred form I have shown the wires 9 lying in vertical planes some of which are perpendicular to others, while the rods or wires 8 lie in a horizontal plane, their arrangement being left in the main, to choice, it being highly desirable, however, that certain of these wires, for instance those designated as 8 in Figure 2, should cross at approximately the center of the marker so that they can be'straddled by the cleft between the bifurcated portions 10 and 11 of the anchor pin 12. It is however, better that only a few but not all of the horizontal rods or "wires should cross at the center, otherwise there would-be a preponderance of metal with a corresponding dearth of concrete adjacent the central portion of the marker, resulting in structural weakness at that point.

Although I have, in the illustrative .example of my invention used rods or wires as a reinforcement for bridging the space within the nosing, yet it is to be understood that other forms of metallic reinforcement might be substituted for the same without departing from the broad' concept ofv the invention. For instance, expanded metal or other well known structural forms o-f-re- .inforcement might be used with equal advantage.

The lower end of the anchor pin 12is preferably cylindrical although it may be made in any shape-desired and its function is to seat, within a hole or'socket in the roadway, holding the marker in position. It is preferred that the pin be rotatable in its socket so that the marker may bodily yield to the blows of traffic.

the anchor pin are properly positioned within an appropriate mold the latter being then The skeletal reinforcement together with filled with concrete, and the metallic parts being so disposed that the nosing in the finished article remains exposed but flush with the concrete surfaces and that the re inforcing cage is embedded to an appropriate depth both at the top and bottom, the anchor pin being at the same time embedded in the concrete at a point where the marker is thickest, the bifurcated portions 10 and 11 of said pin forming a positive mechanical interlock with the concrete.

It becomes necessary in the case of the ordinary metallic markers now in use to repaint them at frequent intervals to restore them to a color which is visibly conspicuous against the color of the roadway. The present invention contemplates the obviation of repainting the markers by forming them at first hand with concrete mix of any suit-' able substance which dries white, or of such color that the markeris readily seen, and when once installed requiresno further attention.

It will be understood that the convex shape of the rods or wires 9 causes them to form arches with the concrete in which they are embedded, the same intersecting one another at frequent intervals throughout the substance of the marker. This produces the strongest possible stress resisting surface for the marker which the wheels of heavy traffic will not disintegrate. The fiat bottom portion of the cage reinforcement ensures the marker against breaking should it be placed upon uneven ground and also assists in the distribution of strains and inthe pre vention of local disintegration of the concrete, under impactive stresses.

While I have above described what I consider to be a preferred, and very practical form of the invention, it is to be understood that numerous changes and alterations may be made in the form and arrangement of the parts, and particularly in the distribution of the reinforcing wires, without departing, in any way from the spirit of the invention.

Having described my invention what I claim as new and desire to secure by Letters Patent, is

1. A traflic marker formed of refractory substance having the top and base faces asymmetrical, and a metallic reinforcement embedded therein comprising an annular nosing, and reinforcing elements secured to said nosing and bridging the space thereacross, said elements being spaced apart in the direction of thickness of said marker some of said elements being arranged toconform substantially to the shape of the ease and some being arranged to conform substantially to the shape of the top.

2. A traffic marker formed of refractory substance having a convex top and a. flat l-ase, and a metallic reinforcement embedded therein comprising an annular nosing and reinforcing means secured to said nosing and bridging the space thereacross, said means being spaced apart in the direction of thickness "of-said marker a part of said means being arranged to conform to the shape of the base and a part being arranged toconform to the shape of the top.

conform tothe shape of said ,top and some being stretched-cho1'dallyjin a plane substantialy parallel to the plane of the base.

4. A traffic marker formed of refractory substance-having a convex top and a flat base, and a metallic reinforcement embedded therein comprising an annular nosing, rods secured to said nosing and bridging the space thereacross, said rods being spaced apart in the direction of thickness of said marker some of said rods being arched in vertical intersecting planes to conform substantially to'the shape of the top and some being stretched chordally in a plane parallel with the base.

5. A traffic marker formed of refractory substance having a convex top and a flat base, an anchor pinprojecting from said base having the inner end thereof embedded in said refractory substance and provided with an opening, metallic reinforcement embedded in said refractory substance comprising anannular nosing and rods secured to said nosing and bridging the space thereacross, some of said rods being arched to conform substantially to the shape of said top and some being stretched chordally in a plane substantially parallel to the base, a group of the latter rods intersecting substantially axially of said anchor pin and passing through the opening thereof.

6. A traffic marker formed of refractory substance and a metallic reinforcement embedded the-rein comprising an annular nos ing formed with an inwardly extending web provided with a series of apertures, and reinforcing elements secured to said web and of apertures extending into the peaks ofsaid periphery, and reinforcing elements secured to said web and bridging the space across saidannular nosing.-

9. A traffic marker formed of refractory substance havi'nga' convex top and flat base,

a metallic reinforcement embedded therein comprising an annular nosing having an inwardly extending lntermedlate web, sald Web being formed with an undulating inner periphery and with a series of apertures extending into the rods secured to said web and bridging the space across said annular nosing, some of said rods being arched in vertical intersecting planes to conform substantially to the shape of the top and some being stretched chordally in a plane parallel with the base. In testimony whereof I have hereunto set my hand. 7

PAUL R. HOSTETTER.

peaks of said periphery,

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