US441332A

US441332A - schofield

Info

Publication number: US441332A
Authority: US
Publication date: 1890-11-25
Anticipated expiration: 1907-11-25

Description

2 Sheets-Sheet 1;

(No Model.)

A. B. SGHOFIELD.

PAVING BLOCK.

Patented Nov. 25, 1.890. I'q'gfl. y

Zfiineaw ea (No Model;) 2 Sheets-Sheet 2. A.-B. SGHOPIELD.

PAVING BLOCK;

Patented Nov. 25, 1890.-

vNO. 441

me xonms runs cm, moro-urnm, wAsumm'on, m c.

UNITED STATES ATENT FFICEQ ALBERT B. SCIIOFIELD, OF NFJV YORK, N. Y.

PAVING-BLOCK.

SPECIFICATION forming part of Letters Patent No. 441,332, dated November 25, 1890.

Application filed February 3, 1390- Serial No. 339,018. (No model.)

T0 at whonz/ it may concern:

Be it known that I, ALBERT B. SCHOFIELD, of New York, in the county and State of New York, haveinvented a certain new and useful Improvement in Paving-Blocks, of which the following is a specification.

My improvement relates to blocks employed in paving streets.

I will describe in detail a paving-block embodyin g my improvement, and then point out the novel features in claims.

In the accompanying drawings, Figure 1 is a plan or top view of apaving-block embodying my improvement. Fig. 2 is a perspective view looking from the under side of the block. Fig. 3 is a transverse vertical section taken on the line 00 00, Fig. 1. Fig. i is a plan view showing the arrangement of a number of blocks embodying my improvement to form a pavement. Fig. 5 is a sectional View of one of the blocks, illustrating a modification and taken at right angles to Fig. 3 and on the line 3 y, Fig. 1.

Similar letters of reference designate corresponding parts in all the figures.

My improvement comprises a box or case A, having a closed bottom a, substantially vertically-extending sides a, and an open top. This box or case is shown as rectangular in shape and is to be made of metal, preferably iron. The interior of the box or case is to be filled in with any suitable concrete B, which may be asphalt mixed with gravel or broken stone or any other suitable compound which hardens upon exposure. I prefer that this box or case should be divided into two or more compartments, and I have shown it as divided into two compartments B which com partments extend in the direction of the length of the box or case, the box or case being shown as longer than it is wide. Such compartments are formed by a partition B, which extends upwardly from the bottom of the box or case about midwaybetween the sides there of and approximately to the top or upper edge of the same. The partition shown in Figs. 1, 2, and 4 is solid; but it need not necessarily be so, as it may be recessed or indented, for instance, as is shown more clearly in Fig. 5. I may also desire to provide strengtheningpieces for the box or case. The strengthening-pieces may extend between the side walls a and the bottom a, or between the side walls a and the partition B. I have shown such strengthening-pieces as extending between and connected to the side walls a, the bottom a, and the partition B. These strengthening-pieces in the example shown do not extend to the top or upper edge of the box or case. They may be of any desired number and arranged in any suitable manner.

It isadvantageous to thicken the box or case upon its exterior and near its upper edge. This I have shown as done by a continuous rib or flange D, extending about the box or case. The said rib or flange need not, however, be continuous, but may be interrupted. The rib or flange strengthens the box or case near its upper edge and provides an extended bearing-surface. I prefer that the said rib or flange should be inclined, as by rounding it off or beveling it off at its outer edge portion and at its top, as shown more clearly in Figs. 3 and 5. The corners of the box or case at the top portion I also prefer should be rounded, as shown more clearly at D in Fig. 1. By thus inclining the edges of the flange D grooves, as it were, are formed between the blocks when the latter are laid in the street, as shown more clearly in Fig. 4:, which afford a footing for horses traveling over the pavement. By making the corners of the box or case near the upper edge rounding an opening is left, as at e, between the corners of adjacent blocks, into which a crow-bar or similar tool may be inserted in order to lift out a block. Providing the box or case with a thickened portion at its corners is also advantageous in this, that the end of acrow-bar or other tool may be caught under said thickened portion, and the block maybe thus easier pried out. here the partition B is not used,

I prefer to make the block one of such width that a wheel of a vehicle in passing over it will substantially contact with the two sides a of the box or case, so that but little wear will be given the concrete or similar substance therein. If the partition B is used, the block may be of such width that the wheel of avehicle will substantially contact withone of the side walls a andvwith said partition.

My improvement isadvantageous because the blocks when laid in'the street form a pavement which possesses the advantages of a smooth pave1nentsuch, for instance, as asphalttogether with the advantages of a block pavement of wood or stone, while the individual blocks possess great wear and strength and are readily put in place or removed.

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

1. A paving-block comprising a box or case having an open top and closed bottom, the sides being bulged outwardly near their upper edges, thereby separating the adjacent blocks from one another, excepting at the bulged portions, the said case or box being substantially filled with concrete, substantially as herein described.

2. A paving-block comprising a box or case having an open top and a closed bottom, the

sides being provided with an outward bulge near their upper edges and their upper edges being beveled downwardly and outwardly toward the outer portion of the bulge, the box or case being substantially filled with concrete or similar material, substantially as herein described.

3. A paving-block comprising abox or case having sides, a closed bottom, and an open top, the corners of said box being thickened near the upper edge of the box or case and rounded, and said box or case being substantially filled with concrete or similar material, substantially as specified.

ALBERT B. SOHOFIELD.

WVitnesses:

FREDK. HAYNES, GEORGE BARRY.