US244594A - Eicuaed h - Google Patents

Description

(Modem R. H. GUYER. A ARTIFICIAL STONE PAVEMENT AND BLOCK.

Patented July 19, 1881.

- UNITED STATES RICHARD H. GUY-ER, OF LA FAYETTE,

PATENT OFFICE? INDIANA, ASSIGNOR OF TWO-THIRDS TO EDWARD ASHER AND ADAM HERZOG, OF SAME PLACE.

- ARTIFICIAL-STONE PAVEMENT AND BLOCK.

SPECIFICATION forming part of Letters Patent NO. 244,594, dated July 19,1881. Application filed February 10, 1381. (Model To all whom it may concern Be it known that I, RICHARD H. GUYER, of La Fayette, in the county of Tippecanoe, and in the State of Indiana, haveinvented certain new and useful Improvements in Artificial- Stone Pavement-Blocks; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being-had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

The present invention relates to a novel mode of connecting the paving-blocks of pavements in which the blocks are made of some suitable composition.

Paving-blocks of this character have beenconnected by tongue-and-groovejoints; but I have found that the horizontal grooves tend to weaken the blocks at their edges, that the tongues frequently break, and that in case of any irregularity in the formation of either the tongue or the groove a close fit between the two is rendered difficult.

It is the object of my invention to overcome such defects; and to this end I form semispherica-l cavities in one block a nd correspondin g semi-spherical projections in the opposing side of another block, whereby the blocks can be readily and effectively connected together by fitting the projections in the said cavities.

In the drawings, Figure l is a section taken on a vertical plane through two paving-blocks formed and connected together in accordance with my improvement. Fig. 2 is a section 3 5 taken on a vertical plane through one of the said blocks.

A A indicate the paving-blocks, oi any suit able composition. Each block is formed with the semi-spherical cavities B B in two of its sides and with the semi-spherical projections (J (J on its remaining two sides, said projections being adapted to fitinlo the recesses, as shown in Fig. 1. This arrangement of cavities and projections admits of all of the blocks being fitted together in laying a pavement. 5 In the ease of a horizontal tongue fitting in a horizontal groove there can be no inclination of one block with respect to the block to which it is to be connected in case the tongue or groove should not be in a rightline; but should so it happen that the centers of the cavities or projections in my blocks are not both in a plane parallel with the top or bottom of the block, it is evident that the block could be slightly inclined, and therebyfit the opposite block.

What I claim is- A rectangular paving-block provided on two of its adjoining sides with semi-spherical projections U and on the opposite adjoining sides with corresponding recesses B, whereby a se- 60 ries ofsaid blocks may be mutuallyinterlocked, substantially as specified.

In testimony that I claim the foregoing I have hereunto set my hand this 3d day of Jannary, 1881.

RICHARD H. GUYER.

Witnesses:

CHARLES GROENENDYKE, WM. J. ATWELL.

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