US1742688A - Partition strip for concrete - Google Patents

Description

W. C. BURRELL PARTITION STRIP .FOR CONCRETE `lan. 7, l 930.

Filed Deo. 5, 1928 Patented Jan. 7, 1930 traina PATENT FFCE WILLIAM C. BURRELL, F IHLN'LK.AKI'ifIElj ILLINOIS PARTITION STRIP FOR CONCRETE Application filed December This invention relates to improvements in parting devices for cement and concrete structures with particular reference to roadways and the like7 whereby the roadway or structure may be caused to separate along defined planes orsections in such a manner that adjacent surfaces of the separated material may be permitted to interfit one another through the parting strip when the l0 separated portions of the roadway expand due to temperature changes.

It is an object of this invention to provide an improved parting strip for concrete roadways and the like, said parting strip being constructed of a foraminous material to permit projecting portions on one surface of a divided section to project through the foraminous material into registering cavities in the opposite section of the material.

Itis also an object of this invention to provide a parting strip constructed of a foraminous material to permit separated sections of a roadway or the like to interflt one another through the parting strip.

It is a further object of this invention to provide a roadway partition strip constructed of a foraminous material and having engaged thereon apertured plate connectors through which supporting pins may be engaged for mounting the partition strip inplace on a roadbed with the upper edge of the partition strip adapted to be located either flush with the upper surface of the road or a slight distance therebelow, as desired.

It is furthermore an object ofvthis invention to provide a roadway partition strip constructed of a foraminous material having mounting plates and reinforcing members engaged thereon to facilitate mounting of the partition strips in position on a roadbed, so that a roadway may be caused to part along a defined plane in such a manner that portions projecting from one section of the separated roadway will be permitted to inove back into the cavities from'which they have been separated in the opposite section of the roadway, through the openings in the foraminous part-ition strip.

It is an important object of this invention Y 59 to provide a concrete roadway or the like 3, 1928. Serial No. 323,354.

with improved partition or dividing strips which are constructed of wire mesh, apertured sheet metal, expanded metal, or the like, to afford an arrangement whereby the roadway may be caused to separate along a defined plane in such a manner that adjacent surfaces of separated sections will be permitted to intert with one another through the foraminous partition strip when the separated sections of the roadway are expanded due to temperature changes.

Other and' further .important objects of this invention will be apparent from the disclosures in the accompanying drawings and the following specification.

This invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings;

Figure lis a fragmentary perspective view of a partition strip embodying the principles of this invention and illustrating a reinforcing sleeve and also a combination supporting bracket and connector whereby the partition strip may be supported in position and also be connected to another partition strip.

Figure 2 is a sectional view taken on line II-II of Figure l. i

Figure 3 is a fragmentary transverse sectional view taken through a partition strip and a portion of a roadway illustrating the virregularly defined crack caused by the partition strip through which portions of each of l the adjacent surfacesl of the divided sections are adapted to project and interlit in the cor- Y responding recesses in the opposite section.

Figure 4 is an enlarged fragmentary detailed sectional view taken on line IV-IV of Figure 2, illustrating the interfitting connecting relation between the two partition strips.

Figure 5 is a fragmenary sectional view similar to that illustrated in Figure 4, but illustrating modified forms of connecting bracket plates constructed to permit two partition strips to be connected in alignment with one another.

As shown on the drawings z The partition strip in the embodiment illustrated comprises a long framework 1 constructed of wire or rod mesh, the upper and lower longitudinal rods 2 of which are slightly heavier or of greater diameter than the remaining members of the mesh. rlhe mesh frame 1 may be cut in any desired length and is of a height or width substantially corresponding to the thickness of the upper layer of concrete which forms the roadway above the roadbed.

Y trated in Figure l. Each of the walls of the V-shaped channel section -l is provided with an aperture or opening 6 to permit a mounting or retaining pin 7 to be projected downwardly through the openings 6 ydriven into the roadbed to hold the parting strip mounted in a substantially vertical position upon the roadbed to be imbedded in concrete or the like. l

The parting strip may be mounted so that theupper longitudinal edge is positioned a slight distance below the upper finished surface of the concrete -roadway, or, if desired, the upper longitudinal rod 2 of the framework may be positioned so that the rounded portion thereof is flush wit-litlie upper surface of the roadway. Y

' Vhenever desired, or when necessay, the upper longitudinal bar Q may be reinforced by engagin' over the top thereof a longitudinally split reinforcing pipe or sleeve 8, which extends to within a short distance of the bracket or supporting members engaged on the end of the framework.

The part-ing strips are furnished in standard or required lengths and are adapted to be positioned vertically upon a roadbed in locations where it is desired to have 'the roadway split or cracked as a result of variations intemperatnre to which the roadway is subjected. rlhe parting strips are arranged to be aligned with one another with the projecting ends of the upper andllower longitudinal j rods 2 atone end of a framework, adapted to be inserted into the sleeves or collars 3 of a partition or supporting bracket member 4 5 engaged on an adjacent end of Vanother framework 1, as illustrated in Figure 1. It will thus be noted that any number of the mesh frameworks l may be connected in alignment in any desired position on a roadbed and thevarious frameworks may be supported in vertical position by means of the retaining pins 7. The parting strips may be disposed longitudinally of a road or transversely, or both if desired, or in any other location where it may be deemed necessary to cause the roadway to crack or split to compensate for the contraction and expansion of sections of the roadway due to temperature changes. j

t will be noted that the brackets or connecting members are adapted to be positioned to connect two adjacent ends of two aligned frameworks 1. In cases whe'reit is desired to reinforce the upper members 2 of the frameworks, the reinforcing sleeves or pipes 8 may be engaged on the upper members of the frameworks, as illustrated in Figure 1.

l/Vhen a series of frameworks 1 are supported in position by means of pins 7 upon a roadbed, the various partition strips are imbedded in concrete or other simi-lar material, permitting the larger particles vor members forming the concrete to project through and fill the mesh openings provided in the various frameworks. After a roadway has been constructed and has properly set, the parting strips tend to insure the roadway splitting or crackingvalong the planes of the parting strips, as illustrated in Figure 3, so that stones or other solid portions forming part of the concrete on one side of a partition strip areV adapted to be pulled out of pockets or sockets formed in the concrete on the opposite side of a partitionstrip, so that the projections on one side and the apertures Aor openings on the other side of a partition strip are complemental to one another, thereby permitting the same to interfit one another at substantially the saine points or locations when the concrete forming the roadway expands due to increased temperature changes.

In Figure 5 of the drawings, the parting strips or frameworks ,are constructedA similar to that illustrated in Figure l, said parting strips are 'connected by means of modified forms of connectors or supporting brackets 9, the middle portions -of which are provided with apertured V cross-sectioned portions similar to the sections 1l. The connecting bracket 9 at one end of a framework 1 is provided with half sleeves or collars 10, permitting the ends of the upper and lower rods 2 to project through the short sleeves 10 and into the projecting ends of long sleeves 11 which are formed on the upper and lower ina-rginsiof a second supporting or connecting bracket 9 engaged on 'the adjacent end of a second parting strip as illustrated. In this construction, it will be notedrthat two bracket plates 9 are adapted to abut one another at the intersect-ing ends of a pair of parting strips and the long projectingsleeves 1l of one of said brackets are adapted to be engaged over the projecting ends of upper and lower rods of an adjacent framework until the ends of the long sleeves abut against the outer ends of the short sleeves 10 of an abutting supporting bracket.

The supporting or connecting brackets 9 Y are adapted to be secured in place by means of pins similar to the arrangement shown in Figure l so that the connected parting strips are rigidly secured in desired positions upon a roadbed ready to be imbedded in concrete or the like with the upper margins or edges of the frameworks or parting strips posi# tioned either below the top of the roadway or flush with the upper surface of the roadway as specifications may require.

While a wire or rod mesh or screening has been described in connection with Figures l sections expand due to temperature changes.

Attention is also called to the fact that if desired the parting strips may be constructed of expanded metal of any desired design to eect results similar to those described in connection with wire mesh or apertured sheet metal. By providing the improved foraminous material for constructing parting strips for roadways and the like, it will be particu* larly noted that when sections of the roadway are cracked or split due to contraction of the material, that such sections may substantially always be expanded into interfitting relation with one another in substantially the same relation as they originally possessed before the cracking or splitting of the roadway took place. This improved condition serves to hold the different sections of the roadway in proper location and prevents creeping or displacement of cracked sections.

While the connecting plates or supporting brackets of the device have been described as constructed of sheet metal, such metal may be perforated if desired, or the connecting brackets may be constructed of wire mesh or of expanded sheet metal as desired.

Each of the foraminous framework sections also has engaged thereon intermediate sheet metal brackets 12, the offset portion of each of which is provided with an opening 13 to permit a horizontal bar or rod to be projected therethrough if desired.

It will of course be understood that many changes may be made and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and it is therefore 'not purposed limiting the patent granted hereon, otherwise than necessitated by the scope of the appended claims.

I claim as my invention:

l. A roadway parting device comprising roadbed to hold the aligned` Vforaminous sections, connectors joining the ends thereof, and means engaging the connectors and projecting into the sections secured in position.

2. A roadway parting device comprising a plurality'of aligned foraminous frameworks, and means for connecting and supporting the same in position upon a roadbed.

3. A roadway parting device comprising a plurality of frameworks having openings therein, connectors engaged on abutting ends of the frameworks, apertured projecting portions on said connectors, and means projecting through the apertures in said projecting portions to hold the frameworks and the connectorsv supported in position upon a roadbed;

v 4. A roadway parting device comprising a framework constructed of a foraminous material, an apertured connector engaged on one end of the framework to permit the framework to be connected with asimilar frame- `work aligned therewith,'means for staking the connector in position, and reinforcing means engaged on the upperportion of the framework.

5. A roadway parting device comprising a plurality of aligned framework sections constructed to permit concrete to project therethrough, connectors interfitting adjacent framework sections to hold the same properly aligned, perforated sections formed on said connectors, and pins projecting through the perforated channel sections to hold the framework sections and the connectors mounted in position.

6. A roadway parting device comprising a plurality of aligned framework sections constructed of foraminous material, connectors overlapping adjacent ends of the framework sections, means engaged with the connectors for staking the framework sections in position on a roadbed, and reinforcing members engaged on the framework sections to strengthen Vthe same.

7. The combination, with aconcrete roadway, of foraminous sections imbedded therein adapted to cause the concreteto split along defined planes affording irregular surfaces adapted to interit one another through said sections when the split portions of the roadway are expanded due to temperature changes.

8. A roadway parting device comprising aligned sections constructed of heavy wire mesh yor other foraminous `material, and means interiitting the ends of said sections for connecting and supporting said sections in aligned position.

9. A parting device for concrete and the like comprising a mesh framework, sleeve brackets engaged thereon and means for staking the brackets in position to hold the mesh framework in place.

l0.V A parting ldevice forlconcrete and the 11ke,rcompris1ng a plurality of foraminous sections, apertured means interitting and connecting the sections one to another, and

members engaging said apertured means to hold the same and the connected sections secured in position on a 'foundation Jfor the concrete. Y

l1. A concrete-parting device comprising a framework constructed of heavy Wire mesh, and stake carryingapertured bracket means for holdingV the framework supported in a verticallposition upon a roadbed to permit the framework to be imbedded in concrete with the concrete projecting through the openings in the framework.

l2. A road parting device comprising a oraminous section, apertured brackets, sleeves formed thereon and engaged on said section, and members projecting through said apertured brackets. v

13. A road parting device comprising a foraminous section, apertured brackets engaged thereon, members projecting through said apertured brackets, and reinforcing means on said section between said brackets.

In testimony whereof I have hereunto subscribedV my name at Kankakee, Kankakee county, Illinois.

VILLIAM C. BURRELL.

Images