US938661A - Reinforcing-frame for concrete structures. - Google Patents

Description

, G. M. GRAHAM.

REINPORGING FRAME FOB. CONCRETE STRUCTURES.

A-PTLIGATION FILED DEOJO, 1907.

E 938,661. Patented NW2, 1909.

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G. M. GRAHAM.

REINFORCING FRAME FOR CONCRETE STRUCTURES.

APPLICATION FILED DEC.10,1907.

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lREUTPORGING FRAME FOR CONCRETE STRUCTURES.

APPLIUATION FILED 1330.10, 1907.

938,661 Patented N0v.2,1909.

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To all whom 'it may concern:

Be it known that I, GEORGE M. GRAHAM, a citizen of the United States of America, and a resident of Chicago, in the county of Cookv and State of Illinois, have invented certain new and useful Improvements in Reinforcing-Frames for Concrete Structures', of which the following is a specification.

This invention relates to thatjclass of reinforced concrete structures in which the skeleton reinforcing 'frame is provided with skeleton centers formed by serles of links, of an elongated hoop type, arranged in separated and crossed relation u on the mar inal members of the skeleton rame. An `the present improvement has for its object to provide a simple and elicient method by which an expeditious and economical erection of the skeleton reinforcing frame of a concrete structure can be attained, all as will hereinafter more fully appear. y

In the accompanying drawings illustrative of the present invention: Figure 1, is a horizontal section of a portion of the skeleton reinforcing frame of a concrete build.- ing, with the'wire webs or'centers in ilace thereon. Fig. 2, is a fragmentary etail vertical section of the same, showing a completed portion of a floor or likehorizmtalv )art of a building. Fig. 3, is a detail side fiew of the wire web or center. Fig. 4, is a etail plan view of such wire center secured ogether for ready shipment and handling. 4ig. 5, is an enlarged fra entary lan of Figs. 6, 7, 8, 9 an l0, are dliagram iews illustrating the series of steps e1nloyed in erecting a reinforcing frame of he present type.

Similar numerals of reference indicate like arts in the several views. I

The general-form and arrangement of the einforcing frame parts, skeleton wire ceners and masses of concrete, set forth in my rior patent No. 865,490 of September l0, 907, 1s employed in the present improveent, and comprises a general arrangement f the 'parts as' follows 1 represents a' series of vertical cylindrical osts or columns, supported on the usual round footin and extending the height f the building, either as sin le pieces or a ries of. sections secured toge er end to end l y suitable couplin s.

2 are a series o horizon@ cynndrieai Specicaton of Letters Patent, Application led December 10, 1907. Serial No. 405,888.

UNITED sTATEs PATENT oEEIoE.

G-EonGE M. GRAHAM, or CHICAGO, ILLINOIS, AssIGNon To s. A. EnWAnDaxoHLnn, or

ILLINOIS.

I BEINFORCING-FRAME FOR CONCRETE STRUCTURES.

Patented Nov. 2, 1909.

lation, and secured together and to the adjacent vertical posts- 1, by suitable fittings, preferably of the type illustrated in my prior patents Nos. 865,489 and 865,490 `of September 10, 1907. Four of such girders coupled together forms the border frame for a single unit of the skeleton reinforcing frame of a concrete structure and, as in my former patented construction, additional. units will utilizein their formation, a girder of the next adjacent unit or units, as illustrated in Fig. 1.

3 are diagonal brace members for each unit aforesald, and arranged at the respective corners thereof as shown.

4 is the skeleton webbing or centering for `each unit aforesaid, and which as used in the present method consists of a multiplicity of independent wire links of the hoop type which.l encircle the cylindrical border members of a building unit, in spaced relation, and in crossed or o posite directions, to afford an openweb lik which theconcrete mass forming the main portion of the floor or other portion of the structure is'y attached, as usual. l Such links are initially foi-m'd as a bundle having the elongated hoop form shown in Fig. 3, with each individual link of a uniform size and` form and secured together side by side as a compact bundle by twisted tie wires 6 near the respective ends of the bundle as shown in Figs. 4 and '5. As so arranged the in dividual links-,of the bundle will have a spaced relation to permit of an interleaving structure.- Such construction andl arrangement of the links formsthe subject matter lof .Letters Patent No. 910,470, dated January 5 are sheets of perforated 'lathingnattached to the aforesaid webbing or`centeri`ng 4, of a unit, `and adapted to afford Agnisupportfor the concrete mass, in the application and settin thereof. p

I the manufacture of said links an electric Weld 7 is preferred for imparting the required endless nature to said llnks during the process of makin the same of a uniform and standard size, ot er usuall and suitable fastening means may howeverg be Vemployed without departing from.the"spirt of this irders arranged in the usual right-angle repart of the present invention. Y

The series of lvertical posts 1 are -first ofthe adjacent ends of two bundles together Iin the erection of the skeleton reinforcing e center to'unite and to 4c, after which relation,

passed through and then coupled in place tioned bundle 4b c on and to its supporting posts as illustrated in Figs. 7 and 8. At this stage in erecting a building structure oftwo or more units in adjacent relation, the bundle of Wire links 4c of the next adjacent unit Will be interleaved with the Wire links of the bundle 4, as illustrated in Figs. 8, 9 and 10, previous to the next operations noW to be described. The third girder 2c is then slipped into the bundle of links 4b, and the fourth girder 2d through the interleaved links of the bundles 4 and said girders 2w and 2d are moved to place and coupled to their supporting posts, to finish the preliminary erection of the first unit. The succeeding units being erected by a repetition of the o erations above set forth. With the completion of such preliminary erection of one or more units the links comprising` the center thereof are spread apart into the required spaced relation shown in' Fig. 1, and the' required or predetermined tensioning of the saine is effected by imparting in a manual and individual manner, morel or less obliqueness to the links in relation to the marginal frame. The practical as Well as commercial merit of the present improvement over what is: disclosed in my prior patent No. 865,490 of September 10, 1907, consists in an avoidance of the costly and laborious operation of Winding the Wire, -constitutin the skeleton center, around the columns an girders after the same are erected, and so that the skeleton Wire centers can be made in an accurate and economical manner at a properly equipped factory, thence transported `to the place of use, applied, and properly spacedupon the skeleton frame as the erection progresses.

A. marked advantage of the present method consists in maintainin .the series of links togetheras a bundle unti the last step of moving them into spaced relation is performed in the completion of the skeleton frame. v

Having thus fully described my said invention what I claim as new and desire to secure by" Letters Patent, is 1. The hereindescribed method of erecting reinforcing frames for concrete structures Which consists, in initially *assembling as a compact bundle having an elongated form the series of Wire links constituting the skeleton center of a building unit, successively inserting cylindrical frame members through said bundle, coupling said members together as a border frame, and finally separating the individual links to forma skeleton center for said border frame and to impose at the same time the required tension on the links.-

2. The herein described method of erecting reinforcingl frames for concrete structures Which consists, in initially assemblin as compact bundles having an elongated form the series of wire links constituting the skeleton center of a building unit, arranging pairs of said bundles in crossed relation, successively inserting cylindrical frame members through said bundles, cou ling said members together as a border ame, and finally separating the individual links to form a skeleton center for said border frame and to impose at the same time the required tension on the links.

3. The herein described method of erecting reinforcing frames for concrete structures which consists, in initially assemblin as a compact bundle having an elongate form the series of Wire links constituting the skeleton center of L1- buildin unit', successively inserting c lindrical 'rame .members through said bun le, coupling said members ,together and to a series of vertical columns to constitute a border frame, and finally separating the individual links to forni a skeleton center for-said border frame and to impose at the same time therequired tension on. the links.

4. The herein described-method of erecting reinforcing frames for concrete structures which consists, in initially assemblin as compact bundlesl having an elongat form the series of Wire links constituting the skeleton center of a building unit, arranging pairs of said bundles in crossed relation,`suc cessively inserting cylindrical frame inembers through said bundles, coupling said members together and to a series of vertical columns to constitute. a border-frame, and finally separating the individual links to form a skeleton center for said border frame and to impose at the same time the required tension on the links.

Si ed at-Chicago, of ovember, 1907.

Illinois,v this 29th day Witnesses:

ROBERT BURNS, HENRY MOE.

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