US2642789A

US2642789A - Transload device

Info

Publication number: US2642789A
Application number: US61876A
Authority: US
Inventors: Alan E Brickman
Original assignee: United States Steel Corp
Current assignee: United States Steel Corp
Priority date: 1948-11-24
Filing date: 1948-11-24
Publication date: 1953-06-23
Anticipated expiration: 1970-06-23

Description

June 23, 1953 A. E. BRICKMAN TRANSLOAD DEVICE uvvuvmn AjLgN E. BRICKMAN ATTORN'EY m M w n m N A A. E. BRl CKMAN 2,642,789

TRANSLOAD DEVICE 2 Sheets-Sheet 2 INVENTOR. AgAN E. BRKZKMAN ATTORNEY June 23, 1953 F led Nov 24 1948 Patented June 23, 1953 TRANSLOAD DEVICE Alan E. Brickman, Worcester, Mass., assignor to United States Steel Corporation, a corporation of New Jersey Application November 24, 1948. Serial No. 61,876

vd Claims.

This invention relates to a transload device and more particularly to such a device for use in pavement joints, concrete highways, airport runways and the-like. Such devices are quite commonly used to carry the load between adjacent slabs of concrete, but those transload devices now in common use have various drawbacks. They may be difficult to assemble, or their cost may be excessive. In some instances, the device is so constructed that it is difficult or impossible to flow or pack the concrete solidly around the dowel adjacent the joint.

It is therefore an object of myinvention to provide a transload device which is inexpensive and is easily fabricated by welding the various parts together.

Another object is to provide such a device made of two units which can be easily assembled by telescoping the units together.

Still another object is to provide a transload device which enables the concrete to flow or be packed solidly around the dowel adjacent the joint. I

These and other objects will be more apparent after referring to the following specification and attached drawings, in which: I

Figure 1 is a perspective view ofan expansion joint assembly;

Figure 2 is a transverse section pansion joint of Figure 1;

Figure 3 is an enlarged sectional view of a detail; 7

Figure 4 is an'elevation of a detail;

Figure 4A is a view taken on the IV-A-IV-A of Figure 4; and

Figure 5 is a view similar to Figure 2, but showing a contraction joint I.

Referring more particularly to the drawings the reference numeral 2 indicates a pair of concrete slabs having the usual filler member 4 therebetween. My device is made of two complementary units which are telescoped together. Each unit has two

longitudinal rods

8 and 8 spaced from the filler 4 and connected by rods ID and I2 which are welded thereto. Rod I0 is U-shaped with the open end of the U being welded to the lower wire 6 and the closed part of the U extending above and being welded to the top wire 8, thus providing an opening M. A dowel l8 extends into the opening l4 and is welded to the rods 8 and Hi. The rod l2 has a vertical portion, the lower end of which is welded to the rod 6, and a top portion which forms a clamping device 20. clamping device, as best shown in Figure 4, is

I of the exline The.

provided with a loop 22 for receiving the free end of the dowel l8 and a longitudinal portion 24 which extends along the rod 8. The free end of the portion 24 has a hook 26 which is adapted to pass below and extend around the rod 8 to a point just below the axis of the rod. The rods l0 and 12 are arranged alternately with the rods I0 of one unit being opposite the rods [2 of the other unit. A plate 28 is welded to each of the dowels H! on that side of the filler 4 adjacent the rod Ill. The plates 28 are bent at 30 to receive a longitudinal rod 32 In assembly, the two units are brought to-) gether by passing the free ends of the dowels through the openings 34 into the loops 22. The sleeves 36 and fillers 38 are then applied to the dowels and the hook 26 is moved from the dotted line position of Figure 4 to the full line position, thus locking thetwo units together i with the plates 28 bearing against opposite sides of the filler 4 to hold it in position while concrete is poured. The plates 28 do not interfere with the flow or packing of the concrete around the dowels adjacent the joint, thus making it possible to provide dense concrete at the most critical places. The device functions in the usual manner as the concrete slabs 2 expand and contract.

Figure 5 shows my device as applied to a contraction joint. The only difference in the two joints are the omission of the sleeves 36 and filler 38 in the contraction joint and the substitution of a steel separating plate or filler 40 for the expansible filler 4.

While two embodiments of my invention have been shown and described it will be apparent that other adaptations and modifications may be made without departing from the scope of cluding a pair of telescoping supporting units, one.

adapted to be positioned on each side of the filler, each unit comprising a pair of outboard longitudinal rods spaced apart one above the other, spaced apart rods extending between and welded to said longitudinal rods, said last named rods having a U-shaped upper portion extending above the upper longitudinal rod to form an opening, a dowel passing through each opening and welded to the walls thereof, a plate welded to each of said dowels and adapted to bear against one side of said filler, each of said plates being bent outwardly below said dowel to provide a longitudinally extending recess therein, an inboard rod welded to and extending longitudinally between the plates, said last named rod being positioned in said recesses above the bottom of said plates a substantial distance below the dowel, a clamping rod between adjacent pairs of said U-shaped rods extending between and welded to the bottom and top longitudinal rods. each of said clamping rods extending above the to longitudinal rod and having a loop receiving a dowel of the opposite unit, each of said clamping rods extending from said loop along said top longitudinal rod and having a hook portion at the free end which passes below and around the top longitudinal rod, and a connection between the ends of the inboard longitudinal rod and one of the outboard longitudinal rods.

2. In a transload device for adjacent slabs having a filler therebetween, the combination including a pair of telescoping supporting units, one adapted to be positioned on each side of the filler, each unit comprising a pair of outboard longitudinal rods spaced apart one above the other. spaced apart rods extending between and welded to said longitudinal rods, said last named rods having a U-shaped upper portion extending above the upper longitudinal rod to form an opening, a dowel passing through each opening and welded to the walls thereof, sleeves telescoped over the free end of the dowels, a plate welded to each of said dowels adjacent said filler, each of said plates being bent'outwardly below said dowel to provide a longitudinally extending recess therein, an inboard rod welded to and extending longitudinally between the plates, said last named rod being positioned in said recesses above the bottom of said plates a substantial distance below the dowel, a clamping rod between adjacent pairs of said U-shaped rods extending between and welded to the bottom and top longitudinal rods, said clamping rod extending above the top longitudinal rod and having a loop receiving the sleeves of the opposite unit, said clamping rod extending from said loop along said top longitudinal rod and having a hook portion at the free end which passes below and around the top longitudinal rod, and a connection between the ends of the inboard longitudinal rod and one of the outboard longitudinal rods.

3. In a transload device for adjacent slabs, the

combination including a pair of outboard longitudinal rods spaced apart one above the other, spaced apart rods extending between and welded to said longitudinal rods, said last named rods having a U-shaped upper portion extending above the upper longitudinal rod to form an opening, a dowel passing through each opening and welded to the walls thereof, a vertical plate welded to said dowels intermediate the length thereof, a clamping rod between adjacent pairs of said U-shaped rods having a vertical portion extending between and welded to the bottom and top longitudinal rods, each of said clamping rods extending above the top longitudinal rod and having a loop for receiving a dowel therein, said loop extending from said vertical portion with its free end above the top longitudinal rod, each of said clamping rods extending from the free end of its loop downwardly along said top longitudinal rod and having a hook portion at the free end adapted to pass below and around the top longitudinal rod.

4. In a transload device for adjacent slabs, the combination including a pair of outboard longitudinal rods spaced apart one above the other, spaced apart rods extending between and welded to said longitudinal rods, said last named rods having a U-shaped upper portion extending above the upper longitudinal rod to form an opening, a dowel passing through each opening and welded to the walls thereof, a plate welded to each of said dowels intermediate their length, each of said plates being bent outwardly a substantial distance below said dowel to provide a longitudinally extending recess therein, an inboard rod welded to and extending longitudinally between the plates, said last named rod being positioned in said recesses, a clamping rod between adjacent pairs of said U-shaped rods extending between and welded to the bottom and top longitudinal rods, each of said clamping rods extending above the top longitudinal rod and having a loop for receiving a dowel, each of said clamping rods extending from said loop along said top longitudinal rod and having a hook portion at the free end adapted to pass below and around the top longitudinal rod.

ALAN E. BRICKMAN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,735,592 White Nov. 12, 1929 1,772,653 White Aug. 12, 1930 1,830,883 Nester Nov. 10, 1931 2,245,972 Friberg June 17, 1941 2,309,767 Heltzel Feb. 2, 1943 OTHER REFERENCES Roads and Streets, November 1947, page i.