US82320A - David woodwbll hunt - Google Patents

Description

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DAVID WOODWELL HUNT, OF SAN FRANCISCO, CALIFORNIA.

Letters .Patent o. 82,320, dated September 22, 1868.

turnovtn woon' PAVEMENT.

TO ALL WHOM IT MAY CONGELRN:

Be it known that I, DAVID WooDwnLL HUNT, of San Francisco, county of San Francisco, State of Cali-` fornia, have invented a new and useful Improvement in Wood Pavements; and I do hereby declare the following description and accompanying drawings are sufficient to enable any person skilledin the art or science to which it most nearly appertains to make and use my said invention, without further invention or experiment.

The object of my invention is to provide an improved wood pavement for streets and sidewalks, and relates to the employment of blocks of wood so constructed -that' when laid, a space is formed around each block, near the centre of it, and connected with theupper surface of the pavementby means of openings formed by laying v the blocks soas to break joints; these openings being'iilled with asphaltum, which serves to bind the whole securely together, thus forming a pavement at once elastic and permanent.

A To more fully illustrate and describe my pavement, reference is had to the accompanying drawings and letters marked thereon, of which- Figure 1 is a perspectveview of a section of the pavement.

Figure 2, a perspective view of a single block.

Similar letters indicate like parts ineach of the gures.

A A represent the blocks, which may be of any suitable size and height. Around each block I make a. groove or recess, B, near: the centre, so that when they are placed together a complete communication is had around each one. v l

The street upon which they are to be laid, I prepare inthe usual way, by batingor mauling, to make it as hard and unyielding as possible, and so that it may have the usual crown and inclinations.

The blocks are then set on end, so that each block breaks joints with the others, ot' ,aboutone-fth ofits,

superficial area or thickness, which forms vertical spaces or openings, a a a a, at each of the four corners of veach block.

In these spaces I pour heated asphaltum, filling them, as well as theA grooves or recess around the blocks,

so that the whole series is firmly attached and bound togethergforming an elastic and strong pavement,withA out the additional expense of rst layingy a wooden bottom orfonndation for the blocks to rest upon, the hot asphaltum having such an adhesion to the wood that it cannot be separated except by breaking the-blocks.

My manner of constructing pavements will be found admirably adapted for sidewalks and ornamental walks,l where it is'desirable to introduce blocks of different kinds and colored woods, as well as for all street and travelling purposes i I v I claim a pavement, theblocks of which are secured in position by means of cement run into horizontal grooves or recesses cut around each block, the blocks and grooves being formed and arranged substantially as .described. l

In witness whereof I have hereunto set my hand and seal.

' D. W. HUNT.- [1.. s]

Witnesses:A

A. T. D'nwnr, GEO.l H. STRONG.

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