US1435337A

US1435337A - Apparatus for building concrete structures

Info

Publication number: US1435337A
Application number: US405353A
Authority: US
Inventors: Edward E Sands
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-08-23
Filing date: 1920-08-23
Publication date: 1922-11-14
Anticipated expiration: 1939-11-14

Description

l fsIIifsANbs. APPARATUS FOR BUILDINGcoNcIIET'sTRUcTUREs.- APPLICATION FILED AuG.2`3. 1920. 1,435,337. f Patented N0v.14,1922;

l\ 'W *Wim d .w M M1 m|\\ M W I III I lill llulll. T I r Q u IIN Y v w N IQ.. nA/a mK following is a specification: v This invention relates to new and useful @Patented Nov. V14, 192.2.

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ToaZZfw/tomt'may concern/L' I l Be it known that I, EDWARD E. -vSANDS, a citizen of the United' States, residing at Houston, inthe county of 'Harris and State of Texas, have' invented certain new and useful. linprovement Ain an Apparatus for Building Concrete Structures` ,of which the improvements in" an apparatus for building concrete structures and' includes also the inetliod orl process of erection'` l lln erecting concretel buildings in accordi [ance with thev ordinary method', "'OlmS ,are

erected, usually from lumber into which the columns are poured, and beam and slab forms are also "constructed for the formationl of the beams land floor `and rooflslabs, land these beam andslab forms are supported by a large numberof timber-"columns, All. of these Aforms and timber columns are torn away when the concrete lhasset, and the'luin-` ber used in practically 'ruined-,`causing a greatwastage of lumber. The herein described apparatus and method ,its :use makes it possible to erect the ordinary form of reinforced concrete structure without the l columns and illustratingthe apparatus einployed in removing `the forms.

Figure 2 shows a fragmentary side view of said apparatus, and l Figure 3 shows a side viewv of the footinc:` showing the column mounted thereon.

Referring now more particularly to the drawings wherein like numerals of reference designate similar parts in each of the figures, the numeral 1 refers to the footing, and the numerals 2 and 3 designate columns which are mounted on said footings, it being understood that a great number of footingsand columns will be employed, depending upon the character of the structure. When this footing is formed the lower end of a rod t is secured therein around which the concrete hardens. and this rod projects up above the footing. The lower ends of the columns i i lhe corresponding openin turnedA outwardly through the side of the colun'in.` The upperendjojf the rod 4.' pro- -jects into this bore 5 'and after" the column is in"place thebore iii'ay be' filled with concrete in plastic state from theffside opening thereof.` An' inverted 'MU-shaped rod 6' iscastin'f'the upper end of thecolunin `forming a convenient `means for engage-v4 mentby hook orfotherwapparatus tol be used yin vlifting the column into place, in the event the column is, precast before `erection. Each column fis also provided with one or vmore comparatively large openings l u 'j i r the number of openings employed dependi y f y ing on the number ofstories in thebuilding.

lt is lto 'bejhere observed -that'if desired, vthe columns may bebuilt in `place orthey may be prev-cast, the latter method being ordinarilytheinore'economical.,t When the columns are built by 'theinethod' just described, or' builtin fplace, the ,roof slab or floor slab Sis then constructed iii manner presently to be'` described l l y Agef? `arranged in'alignmentaiid'` a sliortfbeain Sis inserted through each of said openings;` This v beam' is' long enough to piojectout on each side of the column,thus forming a support for the forms by means of which the slab is molded. Onthe top of the respective ends of each beain-Q'are the supporting blocks, formed of reversely tapered wedgeshaped sections 10, 10 and 11, 1 1. rlhese sections are held in positiony by means of the pins 12,

12 which are driven through the sections 10,

adjacent the outer edges of the sections 11, and into the beam 9 underneath; Channel irons 13, 13 are mounted on these supporting blocks and the channel irons areclamped against the columns by means ofthe usual bolt and drift pin 14.

clamped to, the inner lside thereof by said bolt, but interior columns will require a channel iron on each side. irons form supporting beams for the vjoists 15 which maybe of wood or metal. A smooth floor 16 is ksupported by the joists 15 which may also be formed ofiwood or metal.

It is customary to use one or more arches or domes inthe construction of slabs of this character, although in some cases none will be used. In the form shown the domes are indicated by the numerals 17 and are archl Outside columns will require only one channel iron, which is These channel l like forms which are supported on the floor 16. The plastic material is then poured on said floor and covers said domes and the upper surface thereof is brought to a smooth linish, and formed integrally therewithare suitable beams and girders. After the concrete is set the floor will then be removed. by means of an apparatus described hereinafter.

Near each corner of each slab there is left an opening 1S, and extending downwardly through Vthese openings and through the floor are the lifting screws 19 whose upper ends are outwardly threaded and whose lower ends are clasped to the clevises 20. A lifting beam 21 is inserted through aligned clevises under the supporting beams 13.

Threaded upon the upper end of the lifting screws 19 are the hand wheels 22, and un derneath them are bearing plates 23 which rest upon the slab, and interposed between them are anti-friction bearings 211. F our of theselifting screws or jacks areused for each panel or slab. By the use of said acks the beam 21 may be brought up closely against the supporting beams 13, and the pins 12, the sectional blocks 10 and 11, the beam 9, and the bolt 14; are `then removed, as shown in connection with the column 2 at the left hand side of Figure 1.

By the aid of the four acls the supporting beams 18 are then lowered, and as they are lowered they will carry downwardly with them the joists 15, the Hoor 16 and the domes 17, to the ground or to the floor below. None of these parts will be injured by the operation described and may be used again.

It is obvious that by the apparatus and method herein described the use of temporary columns or struts are eliminated and the forms for the floor or roof slabs are supported from the columns of the building while said slabs are being cast, and when these forms are removed said columns will support the slabs formed.

1. A device of the character described consisting of supporting beams inserted through the supporting columns of a build ing, a wedgeshaped supporting bloclr on each end of said beam, supporting beams mounted on said blocks and forms for molding concretious material supported by said last mentioned beams.

2. In a concrete structure, supporting columns, each having a transverse opening therethrough, a beam inserted into each` opening and projecting each way beyond the column and provided tosupportthe forms used in the construction of saidbuildings.

3. In a concrete structure, supporting columns, each having a transverse opening therethrough, a beam inserted into each opening and projecting beyond the column and provided t0 support the forms used in the construction of said building.

In testimony .whereof 1 have. signed my name to this specification in the presence of two subscribing witnesses.

EDl/VARD E." SANDS.

. Witnesses E. V. HARDWAY, WM. A. CATHEY.