US1759626A - Centering reenforcing construction for columns - Google Patents

Description

May 20, 1930. 1,759,626

CENTERING REENFORCING CONSTRUCTION FOR COLUMNS T. H. OCKELS Filed Dec. 28, 1926 I 6- M Zlwwntoc Theodore H. Ockds Patented May 20, 1930 I E D fiEQQKELL MO N E Q Q IA 1; i

,jonnrhlimsinnnnronoms cons'rnucrron FOR coLnMns' I Application filed December as, 1926..

This invention relates to reenforcin'g for concrete, and'the invention is particularly applicable-in connection with the molding of concrete columns, Thesegicolumns V are usually prov ded witha clrcumferential regenforcing member which is generally in the 7 or all of the turns'of the coil arefattached; It

form of a helical coil ofsteel.. It iscustomary to providej vertical bars'to which-some is advantageous ,hollowform- I The general objectofthis invention is to provide a reenforcing construction especially adapted for constructing a hollow column of to construct the; columns of concrete and which will insure the proper centering of the reenforcing coil with respect to the axis of the column; also toprovidea saddle ofsimple construction which can be attached to vertical reenforcing bars in a column to facilitate centering them and the coil to which they are attached.

Further objectsof the invention will ap- 1 pear hereinafter.

The invention consists in the novel parts.

and combination of partsto be; described hereinafter, all ofwhich contribute to produce an efficient centeringreenforcing construction for columns. 3 V

A preferred embodiment of theinvention is described in the following specl-ficatlon,

while'the broad scope of the invention is pointed out in the appendedclaims;

Inthe drawing:

Figure 1 is a side elevation showing a'short portion of a column embodying myinvention, the ends of the'view being broken away.

"Figure 2 is a horizontal cross section upon an enlarged scale, taken upon the line 2 2 of Fig. 1. T Y

' Figure 3 is a Vertical section takenion" the line 33 of Fig. 2.

Fig. 4 is a perspective of the device which I provide for insuring the proper. centering of the reenforcing within the column. I

. Figure 5 is a plan of the blank for the body of the device shown in Fig.4..

Figure 6 is a plan'of the key whichI employ for securing the device to the vertical reenforcing bars.

' The invention maybe practicedwith anyvthe present instance thisi's accomplishedby form of circumferential reenforcing. Inthe' .its axis coinciding with the axis of'the .col-v umn which is to be formed. The reenforcing coil 1 is disposed about the core 3.-with its axis coinciding with that ofthe core." In addition to the reenforcing' coil '1, I provide aplurality of vertical reenforcing bars 4:, and these-bars are attached to' the turns or loopsof the 'coil 1'; Any suitable means may bef'employed for that purpose. .In 9'0 strikingtongues-5 out of the material of the bar and bending the-same over to form a. I hook -'6 (see Fig.. 3), which holds the coil 'againstthe outer 'side'ofthebar. I Iii? In order to center the coilfwlth-respect-to the axis of the column, I provide a plurality of centering devices, such as illustrated-in Fig.4.- Thisfdevice is'inthe form'of a saddle'orv saddle-plate, that istosay, the body :39 I 'Z'fo'fthe 'saddle'is in the form of a plate,.the .ends of-whioh are bent on transverse lines in "the planeof-the iia't side of the plate, and;

at rightgangle's to the body ofthel'plate to 5 form-extensions 8. These extensionsoperate as spacersto hold the bars 4i away from the side of -thecore 3. i In Fig. 5 I illustrate the y plate out of which the saddle is formed. This plateisfprovided with a longslot 9 which is so long that when the plate is bent to form the saddle, theends of thisslot extend out into the extensions 8, asjindicatedat 10in Fig-'4.

"This slot is of tapered form and the mate- I rial whichis struck out'from the-v slot forms a' key 11. see Fig. 6) which Ixemp'loy in this I slot to secure ingbar 4.

the saddle on itscorrespond] e -with. ........a..-

4 are preferably attached together'before they are'setupto form-the-column;:-.iAfter'they if? After the saddle isapplied in thisiway, the

a below the-saddle V i b a I 8fwith a notch 12 Which extends about half? have been set up so as to encircle the core, I' then apply the saddles in the gmanner indicated that i s tojsay,-' the saddle'is applied 7 so that the {extensions 8 project toward the axis of the column 'ivith their ends unattached to, but lyi'ng against, the side'of the core" key ll is driven into the'slot'on the opposite 7 'side of thebar so as to secure the saddle to.

" the ban; Ifthe saddle plate is used o e bar wherethere isno circumferential reenforc-' ring, that is to say, where thereis no cross nemberjattached to the vertical bar,- the key 11 should be sprung sl'ightly to one side so that it Will operateto'clampthe' vertical bar 7 V i-resiliently andhold the saddle'in .place upon it. With a' iconstruction such as ithatde- .scribed, having coils, itis notnecessary that the keyll should clamp the saddle onithe bar ed anyhowuponqthe nearest coil or loopof thecoil, or more. enactlyupon the hook 6 which isformed over for the re'ason that the saddle will besuppo-rt the loop of the coil just I prefer to'gform'thc ends 7 of the entensions Wayacross the plateout ofxvhich thesad-dleis formed. i This, arrangement gives the plates I sufiicient strength" and stability and at the a y same time enables 'me to form agreater munberfof saddle blanks from afmetalbar of a but unattachedtothcore and-cooperating i tered in the column.

A centeringsaddlefor-"centeringa cumferent ial reenforcing: member in a colnmn, consisting ofaQflat plate having abody tensions, and atran'sve r'se key to be received t0. a bar held of the saddle. V s

A. Asa-new article'of ure,a blank with thesame to holdthei'helialmember 'cen'f: V

said blank consisting of an elongated substa-ns .tially' rectangular platerwith axtaperedfopen f lng'extendlng longitudinally throughoutsubstantiiallyI-the length 'ofthe same'andhavinga I notch extending into the same from-Tone'oiits} 1 end edges adjacentone sideofthe blank and I a notch extending; into 'the same {from the 5 othe end edge adjacent the other side fgth blank. i

' Signed at Compton, December, 1926. r

' THEOD ORE t given length. The'notch 12 which is formed, i

V 1. V In a reenforcing construction :torhollovvv 7' columns andthelike; the combination of a i V l circumferentiallydisposed reenforcing memf: 3 l, a plur'alitysofivertical'rreenforcing mem- Y a bers connectedwith the-"circumferential memis '45 her, a plurality of "cen'te ring. saddles mounted on othevertical'membersand having'eXten-' V sions projecting inwardlytowiard the'axisi'of V the column, anda core Within'tlie column urn-V attachedto ther saddles,abutting'againstf the extensions andcooperating Withthe saddles to centernthe "circumferential;reenforcing member in thejcolu'nin. a;

3 2.111 a reenforcingconstruction ffor -jcol-.

r minus, the "combination of a helic'al member all i 'sionsprojecting inwardly toward the axis of the column, means associated With each sad;

disposed around theaxis of theflc'oluinma plu; g V rality of vertical barsfattached to the coils of V the" helical membeniafplurality, of saddles I "consisting 10f bent'gp'lates respectively with Y 1 their inner faces lying; against theouter facesc of the vertical bars, and having eaten- V 7 on one end'of; the platei satthempperend,

r I ,andithe notch12 vat'the otherend is formed .near the lower edgeof the plate; This Will 1 form qall of the saddles alike and" enable .the

end of one saddle. to be struck fromzthe bar 1 i I,

j Without any dle for securing the same on its corresponding vertical;bar, anda core disposed .Withinthe column engagingthe ends of the extensions;

* vim

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