US1074717A - Paving-block. - Google Patents

Description

0. A. HECKEL.

PAVING BLOCK.

PPLIGATION FILED MA 28 Patented Oct. 7, 1913] OTTO A. HEGKEL, OF ST. LOUIS, MISSOURI.

PAVING-BLOCK.

Specification of Letters Patent;

Patented oct. 7,1913.

Application filedMarch 28, 1912. Serial No. 686,946.

To all whom it may concern Be it known that I, OTTO A. Hnonnn, a citizen of the United States, and resident of St. Louis, Missouri, have invented certain new and useful Improvements in Paving- Blocks of which the following is a specification.

This invention relates to improvements in paving blocks and has for its object a fibrous resilient body embedded in a reinforced nonresilient body.

A further object is to provide a fibrous resilient body with a net work of reinforcing material and around the body is applied such material as concrete or the like providing a rigid connection making an absorbent proof paving block as well as providing a uniform structure and durable roadway.

Figure 1 is a'perspective view of my improved paving block. Fig. 2 is a perspective view of the resilient body showing the manner of applying the reinforcing material. Fig. 3 is across-sectional view of two of the blocks as placed together for roadway purposes.

in carrying out my invention I provide a suitable block 4 of fibrous resilient material preferably a creosote treated wooden block. On the bottom, sides and ends of the block are driven nails 5 or other suitable devices and to these nails are attached wires 6; the space between the wire and the body portion of the block is sufficient to permit the concrete material to freely flow and when the concrete materialis firmly set it forms a housing or covering 7 consisting of a bottom 8, side walls i) and end walls 10, the wires and nails reinforcing the material and actin g as a perfect binder. The molds in which the blocks are placed are provided with suitable projections so that the completed concrete covering for the block is provided with elongated depressions or grooves 11; by means of these grooves each block is firmly bound in the other when laid in proper position on the roadway, and a filler of liquid concrete or cement is filled in between the adjoining blocks, this filler being illustrated in 3 and indicated by the numeral 12.

Tn constructing the block I first piace on the resilient body the netting of reinforced material as shown in Fig. 2; this bloclcis set into a mold and the concrete poured into the mold and after the same has become suinmcntly hard the block s removed wh ch then has the appearance as that shown in .Flg. l; a street constructed with blocks of this character is durable and yet has a resilient surface which will provide a perfect tread surface for the hoofs of the horses and by means of the fill-er between the adjacent blocks being of concrete or like material it will allow the horses to obtain what is commonly termed a toe-hold and-prevent slippage. Another featurelofithis block is that after the entire street has been laid and the cement filler placed thereover it forms one homogenous mass which will prevent moisture from seeping down beneath the blocks or foundation and cause the blocks to swell and bulge.

It has been found by practical experience that wherever wooden blocks have been used for roadways and the same placed side by side the moisture which seeps between the adjoining edges has a tendency to swell the blocks and create great expansion and by such expansion the roadbedbulges out of proper. alinement. By providing each block with a cover of concrete the little expansion, if any, caused by the moisture seeping into each block will have no efi'ect whatever on the adjoining block and by means of the reinforcing covering the concrete housing remains rigid and undisturbed. Y

The device is simple in construction and has merit and utility which none of the present blocks used in street construction possess.

In constructing a roadway, pavement or floor embodying my improved block I may if desired place the reinforced blocks in position on a suitable foundation and after the entire floor is laid which constitutes the blocks as shown in Fig. 2, the concrete is poured over the blocks permitting it to flow between the blocks and lodge at the bottom and when the concrete thoroughly sets the entire roadway, pavement or floor will constitute one homogenous mass, and the materiai between each block and beneath being reinforced by means of the reinforcing netting will provide a certain binder throughout the entire structure.

By constructing a pavement with my no proved block the periodical filling of the spaces between the blocks by pitch as is now the present manner where more wood blocks are used is entirely dispensed .vith. the ad joining edges by my construction prevents moisture from passing beneath the blocks or in between thus the necessity of filling the same with pitch, tar, and sand, or other substances is obviated.

It has been found by practical experience that streets constructed of the present wood block type and by being periodically soaked with pitch material, the surface becomes saturated with the pitch especially during the hot season making the blocks slippery as Well as objectionable under foot.

Having fully described my invention What I claini is:

1. A paving block comprising a creosote treated wooden block, a netting of reinforcing material attached to the bottom, sides and ends of said block, and a concrete covering placed over the reinforced portions of the block.

2. A paving block comprising a resilient block, a netting, of reinforcing material attached to the bottom sides and ends of the block, a'concrete covering applied over the tached to said block, by which the concrete is rigidly and firmly held to said block, substantially as specified.

In testimony whereof, I have signed my name to this specification, in presence of two subscribing witnesses.

OTTO A. HECKEL.

Witnesses:

ALFRED A. EIoKs, WALTER G. STEIN.

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