US1581809A - Road marker - Google Patents

Description

April 20 1926.

J. R. OBRIEN ROAD MARKER Filed Sept. 10

, 1925 2 Sheets-Sheet 1 Illllllllllllllllllllllllllll ||lllllllllllllllllilllllllll "iiiiiiiiiiiiiiiiiiiiiiii llllllllllll llhl Filed Sept 1925 2 Sheets-Sheet 2 ef 7y %r J P497110 276 3 April 20, 1926.

Patented Apr. 20, 1926.

JAMES RAYMOND O'BRIEN, OF CHICAGO, ILLINOIS.

ROAD MARKER.

Application filed September 10, 1925. Serial No. 55,455.

To all whom it may concern:

Be it known that I, JAMES RAYMOND OBRIEN, a citizen of the United States,

*residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Road Markers, of which the following 1s a specification.

This invention'relates to improvements in -markers, particularly adapted, though not necessarily limited in its use, in connection with vehicle traflic, and one of the objects of the invention is to provide an improved marker comprising a block or element having a flat surface with aletter or character thereon, a plurality of the blocks or elements being adapted to be placed in the pavement in proximity to each other and at or adjacent a crossing or intersection of streets or roads, so that the tops of the elements will be flush with the top of the pavement and will be clearly visible to the operator or driver of the vehicle and at the same time the marker will not form an bstruction to, or projection above the pave-" a construction that any one or more of the elements may be readily removed to permit renewal or replacement when worn or when desired.-

To the attainment of these ends and the accomplishment of other new and useful objects as will appear, the invention consists in the featuresof novelty in substantially the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and as shown in t e accompanying drawings illustrat-ing th invention and in which draw- Figure 1, is a top plan view illustrating intersecting street or. road ways having several of the markers, constructed in accordance with the principles-of this invention in place in the pavement.

Figure 2, is an enlarged top plan view of one of the markers and a portion of the pavement.

Figure 3, is a vertical sectional view on line 3-3 Figure 2. a

Figure 4, is a view similar to Figure 3 of another form of element and anchoring means therefor.

Figure 5, is a view similar to Figure?) of another form of element and anchoring means therefor.

Figure 6, is a top plan view similar to Figure 2 of another form of the invention.

Figure 7, is a vertical sectional view on line 77 Figure 6.

Figure 8, is a perspective viewof a detailed portion of the anchoring means shown in Figure 7.

Referring more particularly to the drawings and to the form of the invention shown in Figures 1 to 3, the numeral 10 designates generally a block or element of any desiredsize and configuration and constructed of any suitable material, preferably hard rubber or composition, a portion 11 of the element being preferably of a color contrasting with the color of the remaining portion of the element and being shaped to form or delineate a character or letter, the top of the character being flush with the top of the element and the entire upper surface of the element being preferably substantially flat.

Theelement thus formed may be produced in any suitable manner and is of a material which will withstand considerable wear.

Secured to thebottom of the element in any desired or suitable manner is an anchor plate or member 12 which is also constructed of any suitable material preferably of metal and is of a diameter considerablygreater than the exterior diameter of the element 10 to foi'm-.-laterally projecting flanges disposed a considerable distance below the top of the element'to form a base therefor and which flanges are continuous throughout the length of the respective adjacent upright surfaces of the block.

Anchor bolts 13 may be provided which extend through suitable openings in the base plate .12 to be embedded in the pavement,

and if desired transverse members such as pins or the like 14 may extend through the bolts 13 and assist in anchoring the marker element.

\Vhen this improved marker is to be in with the top of the element 10 and closely encompassing the element so that the latter will be firmly set or embedded in the pave-- ment, whereby the element-will not only be prevented from accidental displacement but the edges and sides thereof will be protected against damage and against crumbling.

In the form of the invention shown in Fig. 4, the element 16 is of the same general construction as the element 10 with the exception that the peripheral walls 17 of the element are inclined or beveled downwardly and inwardly from the top surface of the element so that the adjacent portion of the pavement 15 will co-operate with the inclined walls of the element to form a looking or additional anchoring means for the element.

In Figure 5 the element 18 is also of the same general construction as the element 10 with the exception that the peripheral walls of the element 18 areinclined or'beveled downwardly and outwardly from the upper to the lower surface of the element to produce an additional anchorage or locking means for the element.

Obviously any form and number of an choring bolts suitable for the-purpose may be employed in connection with the anchoring plate 12.

' In the form of the invention shown in Figures 6 to 8 the body of the element 19 is the element 19 is constructed will then fill the opening 22 in the plate 20 and the lugs will be firmly seated within the body of the element. v a Q T pl te 2 i of d me s; on d a y greater than the exterior diameter of the element 19 to form a laterally projecting circumferential flange encompassing the element and upon which flange the pavement or surface 23 will rest. 1

The periphery of the element 19 is provided with a circumferential groove or recess 24: intermediate and spaced from the top and bottom of the element and opens outwardlw to receive a portion of the pavement or surface 23 as at 25, with the result that a key like locking portion will be produced which extends into the element 19 and assists in securing or anchoring the element in position.

' Anchoring bolts 26 may also be provided which pass through the plate 20 and may be provided with split ends 27, and a block or wedge 28 may also be provided and so positioned that when the bolts 26 are placed in position and the split ends forced over the block 28 the split ends will spread and will assist in anchoring the bolts.

By the provision of the laterally projecting flangeswhich are continuous throughout the length of the adjacent upright faces of the block and upon which flanges the pavement rests, there will be provided means whereby the block will be anchored for yielding movement with the pavement. That is to say, when the pavement yields under the weight of a load, especially in warm weather, the pressure of the pavement upon the anchor-plate will cause the block to be depressed with the pav'ement, to maintain the upper face of the block at all times substantially flush with the upper surface of the pavement and as the pavement rises when the load is relieved therefrom the block and plate will also rise. Furthermore by providing flanges which are continuous throughout the length of the adjacent upright faces of the block, the block will be maintained against the tendency of a tilting action when a weight, such as of a heavy vehicle, strikes one end or margin of the top of the block. With this improved construction it will be manifest that an extremely eflicient and durable marker will be rovided and when in position may be readi y seen by the operator of a vehicle and will be in a osition not to form a projection or obstruction projecting above the pavement.

Furthermore the marker elements being separate may be readily removed and when in position will be protected and firmly an-- chored and embedded in the pavement.

While the preferred forms of the invention have been herein specifically described it is to be understood that various changes ma be made in the details of construction an in the combination and arrangement of the several parts, within the SCOPE/Of the claims, without departing from the spirit t h s i en n,

What is claimed as new is:

1. A road marker embodying a block like body portion, the upper surface thereof being substantially fiat, and an anchor plate upon which the block rests, the lower face of the block and the saidplate being secured together, the said plate projecting beyond the block to form flanges continuous throughout the length of the respective adjacent upright surfaces of the block, said block being adapted to be embedded in the pavement so that the pavement will rest upon the said flanges and thereby anchor the block for yielding movement with the pavement, the top of the said block being normally flush with the upper surface of the adjacent portion of the pavement.

2. A road marker embodying a block like body portion, the upper surface thereof being substantially flat, an anchor plate upon which the block rests, the lower face of the block and the said plate being secured together, the said plate projecting beyond the block to form flanges continuous throughout the length of the respective adj acent upright surfaces of the block, said block bemg adapted to be embedded in the pavement so that the pavement will rest upon the said flan es and thereby anchor the block for yielding movement with the pavement, the top of the said block being normally flush with the upper surface of the adjacent portion of the pavement, and anchor bolts connected with the said anchor plate and depending therebelow.-

3. A road marker embodying a block like body ortion, the upper surface thereof being su bstantially flat, an anchor plate upon .,adjacent portion of the which the block rests, the lower face of the block and the said plate being secured together, and interlocking means between'the said plate and the said block, the said plate projecting beyond the block to form flanges continuous throughout the length of the respective adjacent upright faces of the block, said block being adapted to be embedded in the pavement so that the pavement will rest upon the said flanges and thereby anchor the block for yielding movement with the pavement, the 'top of the said block being normally flush with the upper surface of the avement.

at. A road marker em odying a resilient block-like body portion, the upper surface thereof being substantially flat, and an anchor plate of a different and non-resilient material upon which the block rests, the lower face of the block and the said plate being firmly secured together to constitute an integral structure, the said plate projecting beyond the block to form flanges continuous throughout the length of the respective adjacent upright surfaces of the block, said block and plate adapted to be embedded in the pavement so that the pavement will rest upon the said flanges and thereby anchor the block for yielding movement with the pavement, the top of the said block being maintained substantially flush with the surface of the adjacent portion of the pavement.

In testimony whereof I have signed In name to this specification, on this 20th day of August, A. D. 1925.

J. RAYMOND OBRIEN.

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