US125416A

US125416A - Improvement in wood pavements

Info

Publication number: US125416A
Authority: US
Publication date: 1872-04-09
Anticipated expiration: 1889-04-09

Description

HENRY M. STOW.

Improvement in Wood Pavement.

Patented Aprile, m72.

M5/bess a 5 l 5/ ff HENRY M. STOW, OF SAN FRANCISCO, CALIFORNIA.

'IMPROVEMENT IN WOOD PAVEMENTS.

Specication forming part of Letters Patent No. 125,416, dated April 9, 1872.

SPECIFICATION. To all lwhom it may concern:

Be it known that I, HENRY M. S'row, of San Francisco, in the county ot' San Francisco and State of California, have invented a new and uset'ul Improvement in the Construction of Vooden Pavement; and I do hereby declare that the following is a full, clear, and exact description thereof, reference bein g had to the -accompanyin g drawing.

This invention consists in certain improve ments in the construction and process of put-A ting down a wooden wedge-block pavement constructed of blocks beveled on one side only, as shown and described in Letters'Patent No. 7 4,862, granted to me by the United States February 25, 1868. It has been found, in driving said blocks, beveled on one side only, verticall y down into the sand foundation, that th ey are very liable to assume an inclined or lean: ing posture in the process ot' being driven down, and to lean more or less in the direction ot' the beveled side. `'lhe object of my present improvement is to obvia-te this tendency.

In the accompanying drawing, Figure l is a side view ot' a series of blocks as iirst set upon I the sand or earth foundation before being driven. Fig. 2 is a side view ot' a section of pavement after the blocks are driven down into the sand or earth. Fig. 3. is a side view of a series of blocks set upon the sand preparatory to driving, with triangular slats interposed between their lower beveled ends; and Fig. 4 is a view of the saine after the blocks have been driven down.

A A are the pavingblocks, B B the sand foundation, and a a the slats interposed between the paving-blocks in the modification shown in Figs. 3 and 4.

The blocks are set upon the sand foundation in an inclined posture, lea-ning one .,uponM/w After less space between the rows ot' blocks, according to the degree of inclination when tirst set up.

The modification shown in Figs. 3 and 4i consists in interposing the strips a aA between the rows of blocks, as clearly shown in the drawing. These strips tend to keep the rows ot' blocks straight, and to support them against vertical pressure.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The process herein described ot putting down a wooden pavement, consisting ot' wedgeshaped blocks, beveled on oneside only, and driven down into a sand foundation, which process consists in iirst setting the blocks in an-inclined or leaning posture, as described, and then driving them Ydown till they assume a vertical position, substantially as set forth.

2. I also claim, in combination with pavingblocks beveled on one side and driven into a sand foundation, the intervening strips or slats a a, formed and interposed between the rows of blocks, substantially as shown and described.

HENRY M. STOW.

Vitnesses:

Jos. L. Cocinas, T. M. CooiIBs.