US2162467A

US2162467A - Joint

Info

Publication number: US2162467A
Application number: US85161A
Authority: US
Inventors: Alan E Brickman; George A Gleason
Original assignee: American Steel and Wire Company of New Jersey
Current assignee: American Steel and Wire Company of New Jersey
Priority date: 1936-06-13
Filing date: 1936-06-13
Publication date: 1939-06-13
Anticipated expiration: 1956-06-13

Description

June 1939. A. E. BRICKMAN ET AL 2,162,467

JOINT Filed June 13. 1936 5 Sheets-Sheet l 4L4/v -E. BE/(KMA/Vm/ 650/965 4. CiLEfiON. v

June 13, 1939.

A. E. BFQICKMAN ET AL JOINT 3 Sheets-Sheet 5 Filed June 13, 1936' [Mei 450215".- 444M 5.

5E/CK/ /4N m Patented June-13,1939

UNITED STATE.

s PATENT OFFICE JOINT Alan E. Brickman and George A. Gleason, Worcester, Mass, asslgnors to The American Steeland Wire (hmpany of New Jersey, a corporation ed New Jersey Application June 13, 1936, Serial No. 85,161

2 Claims.

pre-molded felt or paper which is saturated with asphalt. These pre-molded bituminous fillers exl truded from the pavement as the concrete sections expanded, resulting in a bumpy eiiect on passing vehicles. Furthermore, when the pavement contracted spaces were left on either side of the pre-molded fillers for the entrance of dirt and water. If water enters the joint, it might later freeze and damage the pavement -while dirt will become packedandresultin the heaving or buckling of the pavement due to lack of adequatespace for expansion.

It'jis among the objects of the present invention to provide an eflicient expansion and contractionjoint for concrete pavement which will also function to transfer the load from one section of concrete to another. a

The foregoing and other objects will be apparent after referring to the drawings, in which:

Figure 1 is a fragmentary side elevation of the j device of the invention.

Figure 2 is a sectional view on the line 11-11 of Figure 1.

Figure 3 is asectional elevation on the line IIIIII of Figure 1.

Figureni is an enlarged fragmentary sectional end view ofthe' device after it has been com- 5 pletely installed. v

Figures 5 and Gare enlarged fragmentary sectional end views of the upperpart of the deviceunder contractive and expansive conditions, re-. spectively. 0 Referring more particularly to the drawings, the numeral 2 designates a pair' of side-wall members in the form of metallic plates. Those side-wall members 2 are slightly bowed intermediate their edges and' outwardly curved at '45 points adjacent thereto, the latter being shown at 3. The edge portions of the side-wall members 2 which adjoin the outwardly curved portions are reversely curved, as shown at 4, and abut at 5 in parallelism. The abuttedparallel edges 5 of the side-wall members 2 are suitably connected, as by riveting or welding.

The outwardly curv'edportions 3, reversely curved portions. l, and ,abutted parallel edges 5;

of theside-wall members 2 -are enclosed by sleeve members I in the of trough-shaped or and short sleeve-sections I! to receive transload doweling, which is in the form of relatively large curved strips of a suitable-ductile and rust-proof metal, such as copper. The inner side-walls of these sleeve members I initially contact the outwardly curved portions 3 of the side-wall members 2 and carry at their edges horizontal flanges 8 which-extend into the adjacent concrete sec-t tions it.

f The intermediate portions of the side-wall members 2 are provided with alined apertures 12 pipes H. These pipes ll extend into the concrete sections ill, and are initially coated to prevent corrosion and also to form a concrete bond break to allow the relativemovement of the concrete sections. V

The ends of the pipes ll are closed by suitable plugs l5 which are compressible and perform in a manner similar to voids under thegmovement of the concrete sections Ill. When it is de-' sirable to permit the movement of only one of the concrete sections ill, then only those ends of the pipes M are closed while the other ends are permitted to become filled with concrete.

happens that the pavement must have a thickened edge seal at the bottom,

and in order to enable this construction there is provided an extension for each of the bottom sleeve members 'I. These extensions, shown at 23, are trough-shaped and of tapering depth, and carry at their edges horizontal flanges 24 which extend into the bottom portions of the adjacent concrete sections M. The open edges of each extension 23 are arranged to embrace an end of the bottom sleevemember l and are thus held in place by any suitable means as, for in stance, the bolt and nut illustrated at.-25. V The ends of the spaces provided bythe assembled side-wall members 2, sleeve members I and extensions 23 are sealed by suitable gaskets 21 composed of rubber or other resilient material which are initially held in place by the usual paving s'ideiorms 28. After the concrete is The gaskets 21 serve the dual purpose of sealing the ends of the joint andalso providing a compressible end portion for the joint assembly-to compensate for slight variations in the setting of the forms 28. The posts l9 and lugs 20 are removed before the concrete becomes hard, but the retaining bar 2| is left in position. After the concrete becomes hard the retaining bar is removed and latex 29 poured into the recess left thereby.

In Figure 5 of the drawings, we have disclosed the concrete sections In in expande'd condition and the resultant effect on the device of the invention. As they contract to their initial positions, the side-wall members 2 will remain contracted but the sleeve members I will expand therewith, as shown inFigure 6, whereby the seal is preserved. The characteristics of the copper sleeve members 'l and latex 29 permit the joint of the invention to withstand many expansion and contraction reversals.

' In time, the side-wall members 2 will decompose, but the pipes M will remain intact to transmit loads from one concrete section to the other. While we have shown and described one specific embodiment of our invention, itwill be understood that we do not wish to be limited exactly thereto, since various modifications may be made without departing from the scope of our invention, as defined by the following claims.

We claim:

l. A trans-load expansion joint for concrete roads and the like comprising a pair of individual sheet-like side-wall members, adapted to substantially abut the ends of the adjacent sections of tions, the adjacent vertically extending flat end portions of said sheet-like side-wall members being connected together, ,sleeves for enclosing the upper and lower edges of said side-wall members including the reversely curved and vertically extending fiat joined end portions thereof, flanges extending from each of said sleeves into the ends of the sections of the road, and a rigid one-piece dowel member extendingthrough said side-wall members and into each of the adjacent sections of the road to transfer loads from one section to the other and prevent relative vertical movement thereof.

2. A trans-load expansion joint for concrete roads and the like comprising a pair of individual sheet-like side-wall members, adapted to substantially abut the ends oi the adjacent sections of the road, the upper and lower edges of said inroad to transfer loads from one section to the ber relative to the sections during expansion and I contraction of the road.

' ALAN E. BRICKMAN.

GEORGE A. GIEASON.