US1514143A - Concrete construction - Google Patents

Description

Nov. 4 1924- w. J. DVIORAK CONCRETE CONSTRUCTION me/Hinz Nov. 4 1924.

w. J. DVQRAK CONCRETE coNsTRur/mrdN Filed April l0 1923 4 Sheets-Sheet 2 Ml g 1W,M

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Patented Nov. 4, 1924.,

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PATENT CONCRETE CONSTRUCTION.

Application mea april 1o, 1923. semaine. 631,081.

To all whom t may concern.' j

Be it known that I, VENZEL J. DVORAK, citizen of Czechoslovakia, residing at Sunset Heights, in the county of Harris and State of Texas, have invented certain new and useful Improvements in Concrete Constructions, of which the following is a kspecication. y

This invention relates -to new and useful i0 improvements in concrete constructiomfand has particular relation to construction which may be erected from concrete slabs. The invention embodies improvements in roof, ceiling and floor construction. y

One object of the .invention resides/inthe provision of an improved type of concrete construction wherein the slabsemployed are precast and are tied to the supporting beams, or framework, in a novel way, said beams being in the main, cast in place with a` concrete like material while in plastic state.

With the above and other objects Ain view the invention has particular relation. to certain novel features of construction, arrangement of parts, and use, an example of which is given in this specification and illustrated in the accompanying drawings, wherein Figure 1 is a fragmentary plan view, partly in section, of a roof construction. n

Figure 2 is a longitudinal sectional view thereof, ltaken on the line 2-2 of Figure 4, y

Figure 3 is fragmentary transverse cross sectional view taken on the line 3-3 of Figure 1. j Figure 4 is a cross sectional view taken on the line 4 4 of Figure 1.

Figure 5 is a transverse sectional view taken on the line 5 5 of Figure 1. l

Figure 6 is a fragmentaryv plan view, partly in section, of'a type of ooring employed. Figure 7 is a cross sectional view thereof taken on the line 7-7 of Figure 6. u

Figure 8 is a longitudinal sectional view taken on the line 8-v-8 of Figure 6.-

Figure 9 is a plan view, partly in section, of another type of tiooring employed.y

Figure 10 is a transverse sectional view taken on the line 10-10 of Figure 49.

Figure 11 is a longitudinal sectional view taken on the line 11-11 of Figure 10.-

Figure 12 shows an edge view of a section of ceiling.

Figure 13 shows a fragmentary plan view thereof, partly in section. .j

Figure l14 shows ,an enlarged j plan view,

partly in section, of `,one of the ceiling slabs able configuration to represent shingles, tile.y

or the like, as shown in Figure 1. The lower edge of each slab is designed to overlap the upper edge of the slab beneath it, as indicated in Figure 4, and theseoverlapping edges are suitably formedto interlock, one. with the other, and the joint between them is preferably filledA with pitch or tar 2, so as to form a water tight joint. ,The roof slabs are reinforced, with lengthwise bars or rods 3, whose, ends are formed with projecting loops asy 4 which project beyond the ends of the slabs. These rods 3 may be wrapped, if desired, with reinforcing wire 5. In erecting vthe roof the slabs 1 are first placed in their requiredpositionin which position they are held byy suitable temporary frame Jwork embodying forms as 6, which are to be later removed and in which the supportingA beams for the roofvare molded, said beams designated by the numerals 7 and 8. Thebeams 7 have the reinforcing rods 9 extending through them lengthwise .and at suitable intervals these rods are surrounded by the loops or'ringsO. The projecting loops 4 of the 4reinforcing rods 3 overlap in said form andthe intermediate rods 9 extend through said overlapping loops as shown in Figuresl and 3. The supporting beam? is then poured and when it sets around said reinforcing rods it securely ties the adjacent ends of the slabs, 11`to it. The

-beams y7 alternate with the beams 8, illustrated in Figure 5. Each beam 8 has a deep groove 11 formed therein bythe insertion of an inside V-shaped metal form 12, and when the beam is set this groove is filled with pitch or other water proofing material. This type of beam admits a certain amount of expansion and contraction. Tt is. true that the er pansion and contraction will cause the bottom of the beam to crack slightly, but the ywater proofing material will prevent any leakage. The reinforcing rods 9 of this beam on eachside are surrounded by the rings 13, said rings "beingy located at suitable interformed into loops, the loops of adjacent ends of the slabs overlapping, reinforcing rods extending through said overlapping loops, concrete beams poured While in a plastic state around said loops and the rods projecting through the loops, said rods and loops reinforcing said beams, alternative beams having deep lengthwise grooves along their upper sides, and Water proofing material filling said grooves.

5. A concrete construction including substantially rectangular slabs, reinforcing rods embedded in said slabs, and Whose ends project therefrom, said projecting ends being formed into loops, the loops of adjacent slab ends overlapping, tie rods through said overlapping loops, concrete beams poured While in a plastic state around said loops in tie rods, and supporting the ends of said slabs, said loops and tie rods forming reinA forcements for said beams, ring like ties surrounding said tie rods and embedded in saidk WENZEL J. DVORAK. Witnesses E. V. HARDWAY, W. I-I. DUNLAY.

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