US110153A - Improvement in wood pavements - Google Patents

Description

PATENT GFEIGE.

WILLIAM S. MORSE, OF WASHINGTON, DISTRICT OF COLUMBIA.

IMPROVEMENT IN WOOD PAVEMENTS.

Specification forming part of Lettera Patent No. 110,153. dated December 13, 1370.

,To'all whom it may concern:

Be it known that I, WILLIAM S. MORSE, of

' Washington, in the county of Washin gton and District of Columbia, have invented a new and useful Improvement in `Wood Pavements;`

and I do' hereby vdeclare that the following is a full', clear, and exact description thereof, reference being had to the accompanying drawings, and letters of reference marked thereon.

The object of this invention is to construct a wooden pavement composed of separate blocks that may be readily taken up and replaced without disturbing any part of the pavement except the particular blocks removed, and in which also each block will have a bearing upon contiguous blocks, to obviate or diminish the dangerof its being depressed by heavy weights.

In the accompanying drawings five forms of blocks are shown, either of which may be used i.n constructing `my pavement, the effect being substantially the same in all cases. These ditfer'ent fornis- I` designate as modifications Nos. 1, 2, 3, 4, and 5.

Figure 1 is a perspective view of a section of pavement made according to modification No. 1. Fig. 2 is a perspective view of a pavin g-block made according to said modification No. 1. l Figs. 3 and 4 are opposite end views, and Fig. 5 a. bottom view of the same. Fig. 6 is a perspective view, and Fig. 7 a lbottom view, of a block made according to specification No. 2. Fig. 8 is a bottom view ot' a block made according to specification No." 3. Fig. 9 is a bottom view of a block made according to specification No. 4. Fig. l0 is a bottom view of a block m adeaccordin g to modification No. 5, and Fig. 11 a side view of the same.

The blocks are set in parallel rows-across the roadway, with the grain ot' the wood vertical.

In the following description the distance from top to base ofthe blocks I term depth 5 the extension in the line of the row I term length, andin a transverse direction,` thickness.

I prefer to maire my blocks about seven inches in depth, four and a halt' inches thick at the base, (where not reduced by the lower bevel hereinafter described,) three inches thick at their upper surface, and of any convenient length 5 but I do not limit myself to these precise dimensions.

'The blocks are beveled, on botli sides alike, from base to top, as shown in Fig. 3, but throughout one-half ot' their length (except in modification No. 5) there is a reverse bevel ,from near the vertical center down to the base,

as shown in Fig. 4.

In the modification No. 1 said lower reverse bevel is made on opposite sides ofA the 'same end of the block, extending just one half its length, as shown in Fig. 6.

1n modification No. 2 said lower bevel is made by cutting away the block at both ends, but on opposite sides, just halt' its length on leach side, as shown in Fig. 7.

In modification No. 3 the lower bevel is made by cutting away the central portion of the block on opposite sides just half its length, as shown in Fig. 8.

In modi'tication No. 4 the lower bevel is made by cutting away the central portion of the block on one side, and the end kportions on the opposite side, as shown in Fig. 9.

In modification No.5 the block is beveled from base to top on both sides and at the ends,

but the side bevels should only be half as great y er bevel, will lit into the lower beveled recess in an adjoining block, and so as to break joints, as shown in Fig. 1. The blocks ltit closely at the base, and`fro1n the point at which the lower bevel commences downward/5 but in the upper portion of the pavementthere are V- shaped grooves between the rows of blocks, which are filled with a gravel, with or without tar, Ditch, or other ycementing substances, as may be deemed most expedient.

1f the blocks are four and a halt` inches thick at the base and three inches thick at the top,l and the lower bevel is from the center down, the V-shaped groove will be three-fourths of an inch wide at the surface, but if the lower bevel commences three inches from the base,-

(the blocks being seven inchesI deep,) the groove -wll be about 'an inch Wide at the sur- 4 be' more than an inohnor less than threefourths of an inch wide at the top.

This pavement may be set on a, firm earth foundation, on la bed of well-packed sand. on concrete, or on a board loor,'if desiredV It 'will befseen that whether the blocks are formed according' to modification Nos. 1,-2, 3, 1 1, or 5, each block has a directvetcal bearing upon laterallyadjoining blocks', andthe Whole pavement forms a keyed arch, in 'which no block can move up or down independently of the adjoining blocks.

In modifications N os. l and 2 each bloelg has a direct vertical bearing on two laterallyadjoining blocks.v

In moditicationsN os. 3 and 4 each block has a direct vertical bearing on four latcrnllyhd. joining blocks.

In modification No. 5 each block has a direct vertical bearing upon the two longitudinally-adjoining blocks. In this modification there is a groove between the ends of the blocks, as well' as between the rows, to be filled in the same manner.

A number of these blocks may be bolted together7 so as to orm a. compound block. or a section of pavement composed of blocks firmly united together.

' What I claim as my invention, and desire to secure by Letters Patent, is

1. A wooden pavement composed of blocks beveled from vbase to top, and having reverse hevels in the lower portionsthereof, and tted together substantially as shown and described.

2. A wooden paving-block beveled from base to `top, and having a reverse bevel in the lowerportion thereof, substantiallyas shown and described.`

WM. S. MORSE. Witnesses: l

J.- .L OooMBs, Jos. L. CooMBs.

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