US71746A - Improved steeet-pavemeht - Google Patents

Description

aw.. '-'PATENTED DEC 31867 flaw/mmf @niiet faire atrnt ffice.

ALEXANDER HAMAR, orNE'W YORK,y N. Y.

Letters Patent No. 71,746, dated December 8, 1867.

IMPROVBD STREET-PAVEMENT.

TO ALL WHOM IT MAY ONCERN:

Be it known that I, ALEXANDER I'IAMAR, of the city, county, and State of New York, have invented a new and useful Improvement in Paving Streets and Highways, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, which makes part of this specification, and which represents a view in perspeetive of a section of my `improved pavement.

Itis the object of my invention to produce a cheap, durable pavement, and one which can readily be removed orreplaced; and to these ends my improvement consists in gluing together, as hereinafter described, a series of small blocks of wood, so as to form larger sections of about four .feet square, which are to be placed side by side, (upon a bed or foundation of mortar composed of sand, lime, and silicate of soda,) about an inch apar. The spaces between are to be lled with asphalt.

My invention further consists in interposing between the blocks glued together, as hereinafter described, and the bed upon which they rest, a. series of timbers, arranged parallel to each other, at such distances apart that the joints of the larger sections will be centrally over the timbers. l

A series of cubi'cal blocks of wood, a, with the grain vertical, are glued together -into blocks A, about four feet square. The blocks may-also be saturated with the same material, if desired, as that by which ,they are glued described my invention,

together. These large squares of blocks ure then placed side by side, about an inch apart, and the spaces between them filled with asphalt, B. The blocks answer a good purpose when placed directly upon a bed, C, of morta-r composcdvof sand, lime, and silicate of soda. When, however, the trailic is heavy, I prcferto arrange transverse timbers D upon the bed C, in parallel lines, a distance apart slightly exceeding the size of the sections A, so that the beams underlie the space between them. This arrangement prevents the edges of the sections from sinking under the pressure; it also enablesthe sections to be lifted more readily for repairs, constructing sewers, laying pipes,` and other similar purposes.

I am aware that pavements have been made of sections bolted or dove-tailed together. I am also aware that it has been proposed to use a pavement composed of blocks glued to a foundation, with spaces between each block filled with v'broken stone and cement. -I a'm also aware that blocks have been placed side by side without being cemented together, and do not therefore claim pavements so constructed, but having thus fully What I claim therein as new, and desire to secure by Letters Patent, is- I 1. rlhe method herein described of paving streets by the employment of small blocks of wood glued together to form sections of about four feet square, which sections are arranged side by side upon a bed composed of sand, lime, and silicate of soda, with spaces between-the sections vto be lled with asphalt, as hereinbefore described. Y

2. I also claim the combination, as described, of the small wooden blocks glued together in sections, .the mortar foundation, the parallel timbers underlapping the `joints of the sections, and the asphalt {lling between the sections, for the purposes set forth. I

.Tn testimony whereof,I have hereunto subscribed my n ame.

' A. HAMAR.

Witnesses:

Tn. PRATT Por'rs. J. I. PEYToN.

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