US130027A - Improvement in wood pavements - Google Patents

Description

J. DYER.

Improvement in Wood-Pavements.

130,027 Pater lted m so, 1872.

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UNITED STATES PATENT Grrrcn.

JESSE DYER, OF ROUSEVILLE, PENNSYLVANIA.

Specification forming part of Letters Patent No. 130,027, dated July 30, 1872.

of a'single block; and Fig. 3 is an elevation of one of the vertical sides of the b1ock,showing its Wedge-shaped projections.

Similar letters of reference in the accompanying drawing denote the same parts.

This invention consists of awooden pavingblock, in shape parallelopipedon, except as to the projections hereinafter referred to, .its top and bottom being horizontal, and of its sides two that are opposite each other being inclined and the other two vertical, said block having on each of its inclined sides a wedgeshaped projection, all as hereinafter fully set forth.

A is the block; a, the inclined sides of the same; b, its vertical sides; and 0, its wedgeshaped projection, of which latter it will be perceived there are two to each block, both making part thereof, one having its base flush with the top of the block and its point in the horizontal corner-line beneath, while the other has its base flush with the bottom of the block and its point in the horizontal corner-line above. Each projection also has its edges equidistant from the adjaccntcorners of the block, and both are of the same dimensions.

This construction gives to each block. four angular recesses-two to each. inclined side and p one at each corner-into which recesses, when cesses also resisting vertical strains. Between each set of four blocks there is avoid spacehavin gperpendicular walls, consisting of the outer sides of the projections c and the vertical sides of the blocks A, which spaces are filled with any suitable concrete. Hence each block is also stayed by four masses of concrete, one at each side and conversely. The masses of concrete are stayed by the blocks.

A very firm and durable pavement is thus produced, and one, too, that can be laid easily and with great rapidity. Notwithstanding the firmness of the structure, however, any block can be readily removed by a force applied in the direction of its inclined sides.

Having thus fullydescribed my invention, what 1 claim as new, and desire to secure by Letters Patent, is-

The pavement herein described, consisting of the blocks A, arranged and locked together in the manner shown, the spaces between them being filled with concrete, substantially as described, for the purposes specified.

JESSE DYER.

Witnesses:

WM. E. SHAW, NATHAN K. ELLSWORTH.

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