US2104371A - Expansion joint - Google Patents

Description

Jan, 4, 1938. H. c. JUSSEN ET AL EXPANSION JOINT Filed July '7, 1956 2 Sheets-Sheet l INVENTOR. HERBERT C. Jusszw.

V. MnLcoM.

FEB.

1938. H. c. JUSSEN ET AL 2,104,371

EXPANSION JOINT Filed July '7, 1956 2 Sheets-Sheet 2 INVENTORv HERBERT C. JussEN.

1- V. \MHLC Patented Jan. 4, i938 STATES 2,104,371 EXPANSION JOINT Herbert C. Jussen and Vincent V. Malcom, Mariemont, Ohio, assignors to The Philip Carey Manufacturing Company,

a corporation of Appiication July 7, 1936, Serial No. 89,337

15 Claims' (01. 94-18),

This invention relates to an expansion joint unit which is adapted to be inserted in a flooring or paving construction between spaced apart rigid sections to provide for contraction and expansion of said sections under different climatic conditions and to seal the joint space against ingress of foreign substances. Compression of the joint unit deforms an element thereof to effect a permanent seal under all conditions in the joint space and to prevent any extrusion of the joint filling material above the top surface of the sections.

The invention, generally described, comprises a deformable strip of any suitable waterproofing composition such as asphalt, taror the like hav-' ing associated therewith on one or both sides a plate provided with one or more reservoirs to receive a portion or portions of the strip that flow into the reservoirs under compression of the adjacent paving sections. By reason of the reservoirs and their association with the deformable strip. extrusion of the strip is provided for below the surface of the paving structure;

thereby preventing any of it from being squeezed out of the space to the paving surface. more, extrusion of the joint strip into the reservoirs effects and maintains a seal against the ingress 'of foreign materials from the top and bottom of the joint space. In such a structure,

it is the aim of the present invention to seal the ends of the joint spaces and also effect the end feels by providing reservoirs to receive extruded portions of the joint strip. i

For a better understanding of the inventio reference may be made to the accompanying drawings in which:

. bodiment;

Figure 6 is a perspective view of a still further embodiment; and

Figure '7 is a perspective view of that embodiment of Figure 6 looking at the opposite face of the plate. p

Referring specifically to the drawings in which likenumerals are used to designate like parts,

Furthernumeral l designates spaced apart flooring or paving sections 2 of 'any suitable rigid material such as concrete which is ada'pted'to be precast or poured in place. The joint unit comprises a strip of any suitable bituminous material, such as -asphalt, tar or the like that may be preformed or poured in place in the paving structure. The strip may. be one of conventional construction having face coverings 3 of saturated paper, felt or the like and an asphaltic core 4 sandwiched therebetween. Or the core material may be used without any facing sheets. Associated with the joint strip and preferably disposed on one of the opposite sides thereof is a metal plate of any suitable material such as sheet metal 5. This metal plate is preferably relatively light in weight and may be conveniently stamped or rolled with one or more longitudinally disposed embossments 6 provided on one side. In forming the embossments ,on one face of the plate there is also formed 20 corresponding recess 1 on the other face. The side edges 8 of these embossed and depressed portions are preferably chamfered or inclined in order to constrict the neck of the recess to a less-width than the head of the embossment, '25 thereby providing a positive engagement with the I adjacent paving sections. In the preferred form shown two embossments 6 and recesses 1 are provided on each of the plates. These are spaced so that one will be adjacent the top and the other will be adjacent the bottom of the pavement. The plates may be conveniently provided with a flange 9 disposed along its upper edge and directed to fit over the top edge of the expansion joint strip. This flange provides a seal between the plate and the joint strip to prevent the inross of any foreign material to lodge therebetween. While this top seal is permanent, it is employed mainly to provide a seal until there be some deformation of the joint strip into the 40 reservoirs. This is particularly desirable if the pavement be laid at the-time of year when contraction of the sections may occur before expansion, in which condition the joint strip and one of the side plates'might be separated. The overhanging flange would contact with the top edge of the joint strip and thereby close any space intervening between it and the side plate.

If expansion first takes place the top seal on the upper edge of the joint strip is unnecessary, for 5 thereafter the seal effected by the extruded portions of the joint strip into the reservoir is suflicient. To effect an end seal there is associated with each end of the joint unit a means II) which provides end reservoirs II. .This means may adcesses l9 may be conveniently provided in these ;is beyond the end of the side plate.

other means are necessary to close the ends therevantageously be associated with the side plate by cutting a transverse slot I2 in the intermediate portion l3 between the reservoirs of the side plates. It is substantially in the form of channel plate l4 having a base portion l5 terminating in side flanges l6. These flanges are bent inwardly'to be at an angle of somewhat less than 90 in order to interlock with the slot l2 cut in the same conformation. As a result, the end plate can be sprung into place and securely held therein without the need of any other fastening. The end plate may be of any length but is preferably of a length extending from the outer walls of the embossments in the side plate so that the ends of the end plate may abut the outer walls of the embossments in the side plate and be closed thereby. The flanges l 5 serve as an end closure for the longitudinally disposed reservoirs.

The joint unit preferably terminates slightly below the surface of the paving sections, thereby providing a slight depression which may be readily filled in with bituminous material I! poured to fill the space flush with the surface of the paving sections. This also provides a temporary seal together with the overlapping flanges of the joint material which is forced into the reservoirs conforms thereto and provides portions overlapping and contacting with the side walls of the reservoirs. If there be any subsequent contraction of the paving sections causing the paving sections and either or both of the side plates to separate from the joint strip and providing an intervening space or spaces, such space or spaces will be sealed by reason of the overlapping and contacting portions of the extruded portions of the joint strip into the reservoirs to prevent ingress ,of any foreign material into the joint space. As a result the joint space is permanently sealed at all times and between all parts where ingress of foreign material could occur, and extruding of the joint material out of the joint space is prevented.

In the above described embodiment the endreservoir is provided substantially near but not one or both of the side flanges l6, that is adapted to overlap with the end of the side plate. Re-

flanges and in the ends of the side plates so that the two parts may be wired, bolted or otherwise secured together. In the first described embodiment the ends of the reservoir in the end plate are'closed by the side walls of the embossments and depressions in the side plate, whereas in the second embodiment the reservoir of the end plate Accordingly of if it be desired to close them. One suitable manner of doing this is to slit at the ends a portion of the corner at 20 between the base and flange portions, thereby permitting ends 2| of the base portion to be bent downwardly and secured in place by bending over corner portions 22 of the flanges.

The embodiment shown in Figures 6 and 7 is particularly designed as an end seal for a plate 5a which is provided with only one longitudinally disposed embossment 6a and a corresponding oppositely disposed recess la although it will be understood that this end seal is also suitable for being associated with plates, such as 5, having more than one recess and embossment. It does show a method for providing one end of the end seal with a closure and having means for engaging that end to the associated plate. Embossment 6a is provided on one side of the plate with a corresponding'recess la on the opposite side, and with the sides 8a of the embossment and recess preferably chamfered. A portion of the plate is cut out at 23, this cut-out being made from any desired point below side 8c and extending at least through the adjacent side 8a. If desired, it may extend near to but terminating short of the opposite side 8a of the embossment and recess, thereby leaving a portion 24 to overlap with the end of the end sealing plate Illa.

The end sealing plate lfla is provided with side flanges 16a and an end flange .25, the latter being advantageously of sufficient length to project through the cut out 23 and be overturned at 26 to overhang the end margin of the cut out. While the portion 26 is shown to be on the end flange, it obviously could be formed on the side flanges I611. The corner junctures between the end flange and side flanges'are removed at 21, this being preferably done before the saidflanges are bent into place inasmuch as this facilitates bending them. Moreover this permits the side flanges to spring apart slightly so that the top edges thereof may seat upon the margins of the plate on the opposite sides of the cut out. To

further effect this the width of the cut out fully disclosing the invention and carrying it out, w

it will be understood that there may be various changes in details without departing from the spirit of the invention.

We claim:

1. An elongated plate adapted to be inserted between a joint strip and a paving section comprising a longitudinally disposed projecting means on one side adapted to contact with the paving section and a complemental reservoiroppositely disposed to the projection on the other side, atransversely disposed projecting means and a complemental reservoir, both of said res- (ill ervoirs adapted to be bridged over by the joint strip.

2. An elongated plate adapted tobe inserted between a joint strip and a paving section comprising spaced apart longitudinally disposed projecting means on one side adapted to contact with the paving section and spaced apart complemental reservoirs oppositely disposed to the projections on the other side, a transversely disposed projecting means and a complemental reservoir, both of said reservoirs adapted to be bridged over by the joint strip.

3. An elongated plate adapted to be inserted between a joint strip and a paving section comprising a projecting means on one side adapted to contact with the paving section and a complemental reservoir oppositely disposed to the projection on the other side adapted to be bridged over by the joint strip, nd means closing the end of the reservoir. p 4. An elongated plate adapted to be inserted between a joint strip and a paving section comprising a projecting means on one side adapted to contact with the paving section and a complemental reservoir oppositely disposed to the projection on the other side adapted to be bridged over by the joint strip, and means closing the opposite ends of the reservoir.

5. An elongated plate adapted to be inserted between a joint strip and a paving section comprising a longitudinally disposed projecting means on one side adapted to contact with the paving section and a complemental reservoir oppositely disposed to the projection on the other side, a transversely disposed projecting means, a complemental reservoir, both of said reservoirs adapted to be bridged over by the joint strip, and means for closing the ends of the reservoirs.

6. A pavement comprising spaced apart paving sections having a joint filling strip inserted therebetween, an elongated plate adapted to be inserted between said strip and the adjacent paving section comprising a longitudinally disposed projecting means on one side adapted to contact with the paving section and a complemental reservoir oppositely disposed to the projection on the other side, a transversely disposed projecting means and a complemental reservoir, both of said reservoirs adapted to be bridged over by the joint strip.

7. A pavement comprising spaced apart sections having a joint filling strip inserted therebetween, an elongated plate adapted to be inserted between the joint strip and the paving section, comprising a projecting means on one side adapted to contact with the paving section; a complemental reservoir oppositely disposed to the projection on the other side adapted to be bridged over by the joint strip, and means closing the ends of the reservoir.

8. A pavement comprising spaced apart sections having a joint filling strip inserted therebetween, an elongated plate adapted to be inserted between the joint strip and the paving sec-- tion, comprising a projecting means on one side adapted to contact with the paving section; a complemental reservoir oppositely disposed to the projection on the other side,adapted to be bridged over by the joint strip, and means closing the opposite ends of the reservoir.

9. A pavement comprising spaced apart sections having a joint filling strip inserted therebetween, an elongated plate adapted to be inserted between the joint strip and the paving section, comprising a projecting means on one side adapted to contact with the paving section; a complemental reservoir oppositely disposed to the projection on the other side, a transversely disposed projecting means, a complemental reservoir, both of said reservoirs adapted to be bridged over by the joint strip, and means for closing the ends of the reservoirs.

10. A pavement comprising spaced apart sections having a joint filling strip inserted therebetween, an elongated plate adapted to be inserted between the joint strip and one of the paving sections comprising a longitudinally disposed projecting means on one side adapted to contact with the paving section, a complemental reservoir oppositely disposed to the projection on the other side, and an end plate closing the ends of the reservoir.

11. A pavement comprising spaced apart sections having a joint filling strip inserted therebetween, an elongated plate adapted to be inserted between the joint strip and one of the paving sections comprising transversely disposed projecting means adjacent one end of the plate and a reservoir disposed opposite the projecting means.

12. A pavement comprising spaced apart sections having a joint filling strip inserted therebetween, an elongated plate adapted to be inserted between the joint strip and one of the paving sections comprising a stamped out transversely disposed projecting means having an oppositely disposed reservoir to receive portions of the joint filling strip.

13. A pavement comprising spaced apart sections having a joint filler strip inserted therebetween, an enclosed space arranged intermediate the top and bottom of the pavement adjacent the filler strip and a space provided in the same vertical plane as the first mentioned space but arranged transverse thereto.

14. A pavement comprising spaced apart sections having a joint filler strip inserted therebetween, an enclosed space arranged intermediate the top and bottom of the pavement adjacent the filler strip, a'space provided in the same vertical plane as the first mentioned space but arrangedv transverse thereto and means for closing

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