US1439060A - Shoring for concrete forms - Google Patents

Description

Dec. 19, 1922. V E. W. BOWEN.

SHORING FOR CONCRETE FORMS.

man MAR. I. 1920.

2 SHEETS-SHEET l- J m m I E M Dec. 19,1922. 1,439,060.

E. W. BOWEN.

SHCRING FOR CONCRETE FORMS. FILED MAR. I. 1920.

2 SHEETS-SHEET 2- Patented Dec. 19, 1922.

' UNITED STATES EDWARD W. BOWEN, OF CLEVELAND, OHIO, ASSIGNOR TO THE HYDRAULIC STEEL COMPANY, OF CLEVELAND, OHIO, A COBPQEATTON OF OHIO.

SHORING FOR CONCRETE FORBES.

Application filed March 1,1?20. Serial No. 362,532.

7 '0 all whom it may concern:

Be it known that I, EDWARD W. BOWEN, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Shoring for Goncrete Forms, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates generally to concrete forms and more particularly to the improved means for and method of shoring or supporting the same.

The object of the invention is to provide a simple and eiiicient construction of shoring which will properly maintain in the forms in position while the concrete is being poured, and in which said forms can be quickly and easily removed when desired, which is usually twenty-four hours after pouring.

Another object is to provide a shoring construction in which all of the wooden supports with the exception of the main upright can be removed seven days after pouring; and a still further object is to provide a shoring construction in which the parts are detachably connected together by certain novel devices which can be used over and over again and which will avoid nailing said parts together, certain of said devices being permanently connected to shoring members thereby eliminating loss by misplacement and also providing a material reduction of time required in setting up the shoring as a whole.

With these, and certain other objects in view, the invention consists in the novel features of construction and in the manner of arranging the same, all of which will be fully described hereinafter and set forth in the appended claims.

In the drawings forming a part of this specification, Fig. l is a sectional elevation of a structure employing one form of my improved shoring; Fig. 2 is a sectional plan on the line 22 of Fig. 1; Fig. 3 is a detail view of the stringer supporting bracket; Fig. i is a detail view of the joist support and spacer; Fig. 5 pan supporting means.

In setting up a shoring in accordance with my invention, I employ a plurality of main upright supports A which are preferably x 4 and any length desired according is a detail View of the to the height between floors. These uprights are preferably spaced equidistantly apart both longitudinally and transversely.

Each upright Ahas clevises B B attached to the opposite sides thereof near the upper end, each clevis comprising upper and lower bands B which partially embrace the upright (as shown) and the outwardly bowed connecting portion B and connected to each clevis 'B is a stringer supporting bracket C comprising a base portion C having an opening C which fits over the outwardly bowed portion B and a wedge D is passed through the bow B and in front of the base portion (1 and connects the bracket to the clevis. The upper portion of the bracket is angled outwardly at C to receive the stringer E and the upper end of the bracket is bifurcated at Cite receive the joist F which abuts at its end against the face of the upright as most clearly shown in Fig. 2. in this way the uprights are braced and spaced at the same time.

Each stringer E has a plurality of stirrups Gr arranged thereon, each stirrup having a saddle portion and the bowed leg portion i and in connection with each stirrup I employ a joist support and spacer li-I having an opening H in its lower portion into which fits the bowed leg G and a wedge T detachably connects the joist support to the stirrup. The upper portion of each joist support is bifurcated as shown at H to re ceive the joist K and in practice I prefer to permanently connect the stirrups to the stringers at definite intervals so that the joist will be properly spaced apart, the proper distance.

Each joist has a plurality of stirrups L fastened thereon at definite points, each stirrup being bowed at L and in conjunction with each stirrup I employ a pair of pan supporting arms M each slotted at M and bowed at M and having the positioning fingers M and and a wedge N detachably connects each arm to its respective stirrup. The pans 0 rest upon the fingers M and M of the arms M and spacing strips P are interposed between the adjacent sides of each pair of pans said strips resting upon the joists as shown.

Each upright supports two stringers, and each stringer supports and spaces a plurality of joists, and certain of the joists as be fore stated serve to center the uprights, and

the upright stringers. and joists. connected and arranged as herein shown. and described provide a strong and durable shoring and one which can be quickly and accurately placed, and by having the stirrup and clevises permanently connected all nailing at tin'ies of erection is avoided.

By having the various parts detachably connected. the different timbers can be quickly and easily removed and also the pans When 7 desired.

In operation the first story shoring is set up, the pans arranged thereon and the concrete poured. At the expiration of twenty four hours the pans can he moved by moving the Wedges ll and detachi': arm M, The shoring; ot the secondstory can then be set up. the uprights being 'arranged one directly above the other, and the stringers and joists connected thereto, ready toreceive the pans for the second story and atthe expiwfiou of seven days the stringer and joists ing the uprights standing and braced in any suitable manner and these uprights can remain until the floors have tlioroiuglily settled and hardened.

It Will of course be understood that all floors are reinforced by metallic reinforce merits, and that pillars or columns are also constructed at the same time the floor is poured out and that each pillar or column is the su iporting n be removedlearstringers and" abutting. said uprights said brackets having aportiou adapted to em brace zlllClPOSltlOIl said JOISt-S, and means detachably connected to said o1sts for supnortin a plurality of ans. 1 i

A shoring comprising a plurality of uprights having clevises connected thereto, brackets detachably connected to said clevstringers supported by said brackets, joists arranged upon said stringers, said brackets having a portion adapted' to embrace and position said joists,-stirrups connected to said joists, arms detachably connectedto said stirrups for supporting a plurality oi pans.

In t stimony whereof; I hereunto afiik my 7 signature.

EDWARD W. Bow-EN:

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