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Publication numberUS1371856 A
Publication typeGrant
Publication dateMar 15, 1921
Filing dateApr 15, 1919
Priority dateApr 15, 1919
Publication numberUS 1371856 A, US 1371856A, US-A-1371856, US1371856 A, US1371856A
InventorsCade Robert S
Original AssigneeCade Robert S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Concrete paving-slab
US 1371856 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

R. S. CADE.

CONCRETE PAvmG SLAB.

APPLICATION FILED APR. I5; I9I9. 1,371,856.. Patented Mm'. 15, 1921..

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terials and has Ifor its object the UNITED STATES ROBERT S. CADE, OF CANTON, OHIO.

CONCRETE PAVING-SLAB.

Specification of Letters Patent.

Patented Mar@ 15, 1921.

Application illed April 15, 1919. Seria1`No. 290,178.

v To all whom t may concern.'

Be it knownthat I, RoBnRr- S. CADE, a citizen of the yUnited States, residin at Canton, in the county of Starke and tate of Ohio, have invented new and useful Improvements in Concrete Paving-Slabs, of which the 'following is a specification.

This invention relates to building marovision of a concrete slab adapted for use in paving roadways, cellars, porch iioors, and the like, the slab having its ends so formed that when a plurality of slabs are arranged in end to end relation the meetin ends will be interengaged and positivelyf ocked against relative upward or downward displacement of any end whereby a very strong joint will be provided which is incapable of dislocation.

An important object is the provision of a slab of this character, the ends of which are so constructed that when the ends ciadjacent slabs are interengaged the joints therebetween will permit of the necessary expansion and contraction of the slabs under the influence of heat or cold so that danger of cracking the slabs will be avoided.

Another object is the provision of a slab vof this character which will be very simple and inexpensive in manufacture, highly yeificient in use, durable in service, and a general improvement in the art.

With the above and other objects and advantages in view, the invention consists in the details of construction to be hereinafter more fully described and claimed, and illustrated in the accompanying drawing,- in which-.

The gure is a longitudinal sectional view through a plurality of blocks or s labs constructed in accordance with my invention and arranged in interengagement.

Referring more particularly to the drawing, the numeral 10 designates the body of the slab which may be of any desired dia mansions and which is formed of any preferred mixture of concrete or the like and which may or may not be, provided with longitudinal reinforcing members 11 which may be fluted iron, brass,A wire netting, or in fact any of the standard devices used for this purpose.

' At one end the slab is formed with a downward and outward extension 12 and this end will, for the sake of clearness, be

hereinafter designated as the female memvwithin the recess 13 and under the overhang 15, with the end of the slab proper en aging against the shoulder 14 of the next a jacent slab. The end of the slab provided with the, A

extension 16 will be hereinaterreferred to as the male member of the joint between the slabs.

1n assembling a plurality of slabs in building a roadway or `floor, the extension 16 constituting the male member is engaged withinlthe recess 13 of the next adjacent slab with its extremity engaging beneath the overhang 15, as will be obvious from an inspection of the drawing. This engagement may be ciiected by tilting the adjacent ends of two slabs relatively or it may be effected b'y slidlng one slab laterally with respect to the next adjacent slab. When the slabs are connected by the above described joint, it will be seen that relative upward displacement of either of the meeting ends of successive slabs will be prevented by engagement of the extension 16 beneath the overhang) 15. The usual metallic edge plates 17 may e provided at the upper edges of the ends of the slabs for making the proper joint.

From the foregoing description and a study of the drawing it will be apparent that I have thus provided an extremely simple and inexpensive paving yslab which is so constructed that a plurality of slabs may be interengaged in end to end relation with simplicity and ease and with the result that a joint will be provided which will be very secure and strong inasmuch as displacement of the meeting ends upwardly or downwardly with respect -to each other will be prevented.

Having thus described my invention, claim :-v

A concrete slab comprising an elongated body having its ends formed as square shoulders, a downward and outward extension formed at one end of said body and having its upper surface .lying in the same plane as the lower surface of the body of the slab, the upper surface of said extension being recessed and said recess extending beneath the adjacent shoulder whereby to provide an overhang, and an extensioni'ormed o n the other end of the slab and extending from and beyond the lower side thereof, said last named extension being of a size and shape whereby to conformingly engage within the recess in the first named extenslon on the next adjacent slab, and a tongue extending from said second named 16 extenslon and enaging beneath the overhang at the end o the next adjacent slab.

In testimony whereof I aix my signature.

.ROBERT S. CADE.

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US2512854 *Feb 15, 1946Jun 27, 1950Edgerly Fay HHeated floor construction
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Classifications
U.S. Classification404/41
International ClassificationE01C5/06, E01C5/08
Cooperative ClassificationE01C2201/12, E01C5/08
European ClassificationE01C5/08