US2566120A

US2566120A - Curb inlet casting

Info

Publication number: US2566120A
Application number: US152590A
Authority: US
Inventors: De Witt S Crocker
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-03-29
Filing date: 1950-03-29
Publication date: 1951-08-28
Anticipated expiration: 1968-08-28

Description

Aug. 28, 1951 I DEWITT s. CROCKER CURB INLET CASTING Filed March 29, 1950 unuuuuuu uuuuuuuul' 1n nu I] an up W uuuuuuun nnnnuuuum m n n U U U [1M] [1}] ig/4 H INVENTOR -DEW|TT S. CROCKER ATTORNEY Patented Aug. 28,1951

UNITED STATES PATENT OFFICE I 2,566,120 CURB INLET CASTING De Witt S. Crocker, SpringfieldGardens, N. Y.

Application March 29, 1950, Serial No. 152,590

This invention relates to curb inlets for catch basins of the type shown in my Patent No. 2,473,279, issued June 14, 1949.

The general object of the invention is the provision of an improved curb inlet casting which will integrally unite the side walls of the catch basin and the sidewalk slab thereof so that the inlet casting will remain fixedly bonded thereto to move therewith as the concrete structure expands and contracts with temperature changes and will not move relatively to the wall and roof structure of the catch basin under said temperature changes.

A more particular object of the invention is the provision of a curb inlet casting whereby the aforementioned general object is attained by angling the end walls of the casting to thereby obviate the need of projections extending outwardly from said end walls, as will be more fully described herein with reference to the accompanying drawing, wherein:

Fig. 1 is a perspective view of the improved curb inlet casting;

Fig. 2 is a perspective view of an end portion of a slightly modified form of inlet casting;

Fig. 3 is a top view of a catch basin with the improved curb inlet casting in place, being taken sectionally at a point below the sidewalk slab, so that this does not appear therein;

Fig. 4 is a top view similar to Fig. 3, but taken for most part through the sidewalk slab, so that a portion thereof appears in section; and

Fig. 5 is an elevational section taken on the lines 5-5 of Fig. 4, through the front, upper corner of the catch basin.

The improved curb inlet casting, generally designated Ill, comprises a base plate H and an upper bar l2, between which may be provided a plurality of intermediate partitions l3, shown as disposed normal to the base plate II and upper bar l2 and as integrally united at their lower portions with base plate I l and at their upper portions, with longitudinal bar l2. Intermediate partitions l3, of which five are shown in Fig. 1, for exemplification, provide a plurality of wide openings 15 in the front of the casting. The partitions l3, as best seen in Fig. 5, are shown as of irregular triangular shape with the base thereof at the front of the casting and with their apices H rearwardly disposed. These partitions are shown in the drawings as equally spaced from each other and from the end walls l4l4 of the casting.

The feature of the invention revolves about the character of the two end walls l4, l4 ofthe cast- Claims. 01. 182-6) ing, Fig. 1, which are shown as having the same triangular configuration as the intermediate partitions 13, where these are present to complete the contour of the casting. These end walls l4, l4 flare outwardly from front (i. e. upper bar [2) to the rear. Stated differently, the end walls I4, l4 subtend obtuse angles with the front face of the inlet casting as defined by the upper bar l2 and the forward edge (right edgeas viewed in Figs. 1 and 3) of base plate ll.

It is by reason of this unique disposition of the end walls that the improved inlet casting of this invention integrally unites the side walls of the catch basin and the sidewalk slab thereof (and achieves the results as more fully pointed out in the statement of invention). This will now be explained with reference to Figs. 3, 4, 5, which show how the improved inlet casting is related to a catch basin. The concrete side walls of the catch basin are designated 9, 9, only a fragmentary portion at the curb B being shown in Figs. 3-5. The bottom of the catch basin is designated 1. As best seen in Fig. 5, the aforesaid curb 8 forms the front (upper) corner of the concrete sidewalk slab G which covers the catch basin, extending between the

side walls

9, 9. As also best shown in Fig. 5, the curb 8 represents a stepdown from sidewalk slab 6 to the roadway level 5; at the juncture of the roadway and the catch basin, or, rather, the curb inlet I0, is disposed the gutter grating 4, which is somewhat above, Fig. 5, the subgrade level 3.

The front of the catch-basin (where the curb inlet casting is placed) is completed by a front wall 2 of concrete, Which is integrally united, see Fig. 3, with the

side walls

9, 9. As best shown in Fig. 5, the front wall 2 does not unite with the sidewalk slab 6, but presents its top surface spaced a short distance below the sidewalk slab. After the

side walls

9, 9 of the catch basin and its front wall 2 arepoured, the inlet casting I9 is placed in position along the front of the basin, with the base plate I I of the casting resting upon the aforesaid top surface of front wall 2. Thereafter, the sidewalk slab 6 is poured, to unite the casting in place.

It will be noted from Fig. 3 that, by reason of the aforesaid flaring disposition of the end walls I4, I 4 of the casting, a portion of the concrete constituting the sidewalk slab 6 is disposed above, and rearwardly of, the casting, designated Y in Fig, 5, so that the juncture line between the sidewalk slab concrete and the top slanted sides of the walls, is inclined, as clearly seen in Fig. 5.

When the concrete sidewalk slab expands outwardly under increased temperatures (to the right, Fig. 5) its forward, inclined portion Y exerts a forward or frontward pressure uponthe inlet casting l0, causing it to move in the same frontward direction together with sidewalk slab 6 and

side walls

9, 9 of the catch basin. On the other hand, when the slab and

side walls

9, 9 contract rearwardly under reduced temperatures (to the left, Fig. 3) their forward portions X, X abutting, againstv the flared end walls of the casting, exert a rearward pressure upon the casting, causing it to move in the same rearward direction as the

side walls

9, 9 and slab 6.

It will be observed that the angled end walls, It, I4 present the entire and'maximum cross section of the casting for the bonding action, and that the maximum depth of this cross section is in the plane wherein the lower surface of the sidewalk slab engages the top surface of the inlet basin.

The: end walls [4,. M; are shown. in Fig. 2 as provided with apertures 24,. preferably also located in or adjacent the plane-of engagement of the side wall slab and the inlet walls. Whenconcrete is poured, some of it: will lodge in the apertures 24 to. further interlock the casting with the catch basin in said plane. The curb casting is shown further as provided with. openings 2f through the base plate H, adjacent the end walls l4, l l for the reception of: concrete to further interlock the two.

The. construction of the. illustrated embodiment has been set forth in full. detail because it is that practical embodiment which it is believed will attain most effectively the objects of the invention. It will. be understood however that such details are. not to. be considered. as essential un-- less enpnessl;- so stated in the claims.

I claim: 7

1. In a road drainage catch basin, in combination, a pair of concrete side walls defining the lateral limits of the catch basin, a concrete front wall presenting its upper edge.- substantially level with the road sub-grade, a concrete sidewalk slab integrally tied with said side walls to cover the catch. basin, and a curb inlet casting having a base which is: disposed at the upper edge of said front wall of the catch basin, and a pair of end walls each of which is outwardly inclined to su-btend an obtuse angle with the front wall of the casting which is substantially coplanar with the front face of said front wall of the catch basin, the lower portions of the end walls being angularl'y disposed within the side walls of the catch basin and the upper portions thereof being angularly disposed within said sidewalk slab.

2. A device as characterized in claim 1, wherein said end walls have openings therethrough in the separation plane between said upper and lower portions thereof for the reception of concrete to increase the bonding of the curb casting with adjacent surfaces.

3. In a road drainage catch basin, in combination, a pair of concrete side walls defining the lateral limits of the catch basin, a concrete front wall presenting its upper edge substantially level with the road sub-grade, a concrete sidewalk slab on the said side walls to cover the catch basin, and a curb inlet casting having a base which is disposed at the upper ed'ge of said front wall of the catch basin, and a pair of end walls each of which is outwardly inclined to subtend an obtuse angle with the front wall of the casting which is substantially coplanar with the front face of said front wall of the catch basin, said end walls being triangularly shaped and presenting their apices rearwardly in the separation plane between the sidewalk slab and the basin side walls to define upper portions which are angularly disposed within the sidewalk slab and lower portions which are disposed within said side walls.

4. A road drainage catch basin as characterized in claim 3 wherein said end walls have openings substantially in the plane of said apices for the reception of concrete to increase the bOndil'lg of the curb casting with adjacent surfaces.

5. Ina; road drainage catch basin, in combination, a pair of concrete side walls defining the lateral limits of the catch basin, a concrete front wall presenting its upper edge substantially level with the road sub-grade, a concrete sidewalk slab.

integrally tied with said side walls to cover the catch basin, and a curb inlet casting having a base. which. is-disposed at the upper edge of said front wall of the catch basin, a plurality of partitions and a pair of end walls each of which is outwardly inclined to subtend an obtuse angle with the front wall of the casting which is sub stantially coplanar with the front face of said front wall of the catch basin, said end walls andpartitions being triangularly shaped and presenting their apices rearwardly in the separating plane between the sidewalk slab and the basin side walls to define upper portions which are angularly disposed within the sidewalk slab when it is poured and lower portions which are angularly disposed within the side walls of the catch basin when theyare poured.

6. A curb inlet casting for a road drainage catch basin which is comprised of a pair of concrete side walls defining the lateral limits of the catch. basin, a concrete front wall presenting its upper edge substantially level with the road sub grade, and a concrete sidewalk slab to cover the catch basin; said curb inlet casting having a flat base to be disposed at the upper edge of said front wall of the catch basin, and a pair of end walls each of which is outwardly inclined to subtend an obtuse angle with the front wall of the casting which will be substantially coplanar with the front face of the front wall of the catch basin, the end walls being of a vertical dimension so that the lower portion of the end walls will be disposed in the side walls of the catch basin when they are poured and the upper portions thereof will be disposed within the sidewalk slab when it is poured. I

'7. A curb inlet casting as characterized in claim 6, wherein said end walls have openings therethrough in the separation plane between said upper and lower portions thereof for the reception of concrete to increase the bonding of the curb casting with adjacent surfaces.

8'. A curb inlet casting for a road drainage catch basin which is comprised of a pair of concrete side walls defining the lateral limits of the catch basin, a concrete front wall presenting its upper edge substantially level with the road subrade, and a concrete sidewalk slab to cover the catch basin; said curb inlet casting having a flat base to be disposed at the upper edge of said front wall of the catch basin, a plurality of partitions and a pair of end walls each of which is outwardly inclined to subtend an obtuse angle with the front wall of the casting which will be substantially coplanar with the front face of the front wall of the catch basin, the end walls and partitions being triangularly shaped and presenting their apices rearwardly in the separating plane between the sidewalk slab and the basin side walls to define upper portions which are angularly disposed within the sidewalk slab.

9. A curb inlet casting as characterized in claim 8, wherein said endwalls have openings therethrough in the separation plane between said upper and lower portions thereof for the reception of concrete to increase the bonding of the curb casting with adjacent surfaces.

10. A curb inlet casting-"for a road drainage catch basin which is comprised of a. pair of concrete side walls defining the lateral limits of the catch basin, a concrete front wall presenting its upper edge substantially level with the road subgrade, and a concrete sidewalk slab to cover the catch basin; said curb inletcasting having a base to be disposed at the upper edge of said front wall of the catch basin, a plurality of partitions and a pair of outwardly inclined end walls reach of which subtends an obtuse angle with the front wall of the casting which will be substantially coplanar with the front face of the front wall of the catch basin, the end walls and the partitions being so located with reference to the base and being of a vertical dimension so that the lower portion of the end walls will be disposed in the side walls of the catch basin when theyqare poured and the upper portions thereof and" of the partitions will be disposed within thesidewalk slab when it is poured.

DE WITT S. CROCKER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date H Crocker June 14, 1949 Number