USRE4364E - Improvement in concrete pavements - Google Patents

Description

' those skilled in the art joints of' partitions between v "UNITED STATE's PATENT OFFICE.

JOHN J. soHILLINGEB, or NEW remuer. Y. l

. iMPnovEMENT'IN coNcaE-E PAvEMENrs.

' vSpeeioation forming partofLettex-l Patent No. 115,589; dated ,iuy 19 1810; Reissue No. lf3, dslsd Hay 8, 1Q.

Torall whom it may concern.-

Beit known thatI, Jona J. BouILLINGEa,

oi thelcity, county,-and` State of New York,

ha\'e invented a new and useful Improvement in ConcretePavements; andl do hereby declare the following'to be a full, clear, and e'xnct description thereof, which will enable to' makeand use the same, reference being had to the accompanying drawings, forming part et' this specification, in which drawing- Fignrei represents a plan of my pavement. Fi 2 is a vertical section of the same.

gmilnr letters indicate com spending parte. This invention relates to a concrete pavement which is laid in sections., so that each section can be taken' up and relaid without disturbin the adjoining sections. With thc is'sectional concrete pavement are combined strips ot' material, arranged between the several .blocksA or sections in such a manner as to produce a suitable tight joint and yet allow the blocks to be raised separately without aecting the blocks adjacent thereto.

1n carrying out my invention, I'form the concrete by mixing cement with sand and gravel orother suitable materials to form a plastic compound, using about the following proportions: onepart,by measure, of cement, one part, by measure, ot'sand, and from three to six cient water torender the mixture plastic; but i do not conilne myself to any deilnite proporiionsor materials for making the concrete com ition. i

hilethe mass is plastic I' lay or spread the same on the foundation or bed ot' th vement, either in molds or between mova-A le joists of the proper thickness, so as to form the edges of the concrete blocks a a, one block being formed after the other. When the rst block has set, I remove the joists or it and the block next to second block,

be formed, and then I form the j f block being and so on, each succeedin formed after the adjacent books have set,

and, since the concrete in setting shrinks, the second block when set does not adhere to the 'tlrst, and so ou, `and when the pavement is tar paper, or equivalent parts, by measure, of gravel, with nudi-l completed each block lcanbe kenI up independent of the adjoining bloc s. Between the joints of the adjacent blocks are placed strips b ot tar paper orl other suitable material in the following manner: After completi ing one block, a,I place the tar paper b `long the edge where the next block is to befo ed;A and I pnt the plastic composition for\such next block up against the tar-paper Joint, and proceed with the formation of the new block until it is completed. I proceed until the pavement is completed. interposing tar paper betweenthe several joints as'described. The paper constitutes a tight walter-proof joint, bt it allows tho several blocks to heave separately from the eiiects of frost or to be'raised or removed separately whenever occasion may arise, without injnry 'to the adjacent-blocks.

The paper when placed against the block rst formed -does notadhene theretn,nml therefore the joints are always freebetween the several'blocks, although the paper may adhere to the edges of the block or blocks formed after'the same has been set up in its place' between the joints.

In such. cases, however, where cheapness is an object, the tar paper may be omitted and the blocks formed without interposing anything between. their joints, as previously described. In this latter case the joints soon lill up with sand or dust,and the pavement is rendered suiciently tight for many purposes, while the blocks are detached from each other and can be taken up and relaid, each independent of the adjoining blocks.

What I claim as new, and desire to secure by Letters Patent, is-

1. A concrete pavement laid in detached blocks or sections, substantially in the inannershown and described.

2. The arrangement of tar paper, or 'its equivalent, between adjoining-v blocks o f ooncrete, substantially as and for the purpose set. forth.

t JOHN J, SOHILLINGEB.

witnesses:

W. BLUFF,

' E. F. Kasrnmwnna.

In this manner

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