US1864773A

US1864773A - Reenforcing members for concrete

Info

Publication number: US1864773A
Application number: US438662A
Authority: US
Inventors: George I Stanford
Original assignee: UNIVERSAL PIPE AND RADIATOR CO
Current assignee: UNIVERSAL PIPE AND RADIATOR CO
Priority date: 1930-03-25
Filing date: 1930-03-25
Publication date: 1932-06-28
Anticipated expiration: 1949-06-28

Description

June 28,1932. G. STANFORD REENFORCING MEMBERS FOR CONCRETE Filed March 25, 1950 2 Sheets-Sheet l INVENTOR ATTORNEYS Jun 28, 1932- G. l. STANFORD 1,864,773

REENFORCING MEMBERS FOR CONCRETE Filed March 25, 1930 2 Sheets-Sheet 2 INVENTOR 550,755 I. -57'fl/VFORD WH Qw ATTORNEYS Patented June 28, 1932 rates PATENT oFFIcE GEORGE I. STANFORD, OF MILFORD, CONNECTICUT, ASSIGNOR TO THE UNIVERSAL PIPE AND RADIATOR COMPANY, OF NEW YORK,

Iii. Y., A CORPORATION OF MARYLAND I. REENFORCING IMEI'viBERfi FOR CONCRETE Application fi1ed March 25, 1930. Serial No. 438,662.

This invention relates to improvements in fabricated metallic structures, it being a primary object of the invention to provide a relatively strong and rigid skeleton metallic structure for use in reenforcing concrete.

It is a further object to provide a structure of thischaracter which may be readily welded together to form in effect an integral skeleton framework tobe embedded in concrete or the like.

The above and other objects will appear more fully from the following description when considered in connection with the drawings, in which:

Fig. 1 is an elevational view of a section of the metallic structure constructed accord ing to one embodiment of my invention.

2 is a transverse sectional view taken at right angles to Fig. 1.

Fig. 3 is a similar view taken at right angles to Figs. 1 and 2.

Fig. 4 is a sectional view of a mass of concrete showing the construction of my reenforcing member in situ; and

Fig. 5 is a detail view illustrating the connection between the bars and connecting members of the structure.

In the embodiment of the invention illus trated in the drawings there are provided two spaced series of

longitudinal bars

6 and 8, the bars 6 being arranged in an upperplane and the bars Sin a lower plane spaced beneath the plane of the bars 6 where the structure is arranged horizontally as shown in Fig. 2 for example.

Each of the bars is preferably formed from v a square bar twisted throughout its length so as to provide a number of points at 'v'arious angles 7 to which the cross-connecting members will be attached.

The cross-connecting members are indicated generally at 9, three separate members of which are indicated by the numerals 10 11 and 12 respectively. These members, as w shown connect alternately with the upper and lower bars, passing first across an upper bar 6 then beneath a lower bar 8, etc. The members 9 are thus stepped into higher and lower planes corresponding generally to the planes of the

bars

6 and 8. The members 10 bar.

to 12 are further extended in a Zigzag path so that they extend longitudinally of the

bars

6 and 8 as they connect between these bars. Successive connecting members are thus formed with portions which reach toward the next succeeding connecting members alternately as the members extend from bar to Thus the member 10 is formed with a portion 10a connected above the bar 6 and with a portion 106 connected beneath the bar 8. Likewise'the member 11 is formed with a portion 11a attached above the bar 6 and with a portion 11?) extended to a position adjacent the portion 10?) and'attached beneath the bar 8, each connecting member thus being attached to successive bars and extended backwardlyand forwardly to points adjacent the next succeeding connecting member at each bar forming a double truss. The construction disclosed herein is particularly useful in that the connecting

members

10, 11, 12, etc can be readily attached to the

bars

6 and 8 by means of the electric resistance method of welding. This follows from the fact that each portion of the structure is readily available for the pressure reconnecting member so as to givethe necessary resistance and thus develop the necessary heat for welding. The connecting members 10 to 12, etc. are accordingly shown" as attached to the bars6 and 8 at each of the contact points between the connecting members and bars by means of a welded joint as indicated for example at 14. v

l fhile the structure described above has many and varied uses its primary purposes is for reenforcement in concrete structure as shown in Fig. 4. It will be readily understood that the fabricated structure may be suitably placed on the surface to receive the concrete 16 and that the concrete may thereafter be poured over the structure and, due to the general open character of the reeni'torcing structure, the concrete will readily till every opening in the structure and become attached to the bars '6 and '8 and connecting members 9.

It will thus be seen that my invention contemplates the use of bars and connecting members readily available on the open market and which may be assembled and welded together with a minimum of dilliculty and expense.

The finished product possesses de gree or rigidity and is particularly adapted for being embedded in concrete in which it permits the flow of concrete to-e'very open part of the framework and to which it is firmly attached when the concrete has become set.

Having now described myin'vention, I claim:

1. In a metallic framework 1" reenforcement, a plurality of metallic bars, alternate bein ing members rigidly connected with bars in the different planes, l

necting members extending obliquely with respect to the length of said as the x to a plurality of bars in each plane.

2. In a metallicframeworl; for concrete reenforcement, a plurality of twisted multisided metallic bars forming longitudinal lmemb'ers, said bars being arranged alternately in spaced planes, a plurality of cross wardly in zigzag paths longitudinally of said bars to points of connection with a plurality of said bars in each plane.

4:. In a metallic framework, a series of longitudinal bars arranged alternately in spaced planes, cross connecting members welded to saidbars and extending from each bar to the next adjacent bar, said connecting members extending backwardly and forwardly in zigzag paths to points of connection with a plurality of said bars in each plane, the points of connection of each of said connecting members with said bars being adjacent the points of connection of proximate connecting members to the same bars.

5. In a metallic framework a series of longitudinal bars arranged alternately in-spaced planes, cross connecting members welded to said bars and extending from each bar to the next adjacent bar, thes pace between'successive bars in the same plane being otherwise unobstructed, each of said connecting men1- bers being extended alternately to points adjacent the points of connection of connecting members on each side of said first-named members and extending to and being connected toa plurality of bars in each plane.

6. In a metallic framework, a series of longitudinal bars arranged alternately in vertically spaced planes, cross connecting memberseach welded to a plurality of saidbars in each plane, said members extending from each barto'the next adjacent bar by passing over the upper bars and beneath the lower bars, said connecting members extending backwardly andiforwardly with: respect to the length of said bars in zigzag paths to points of connection with said bars.

S1gnedat New York m ths-county of New YorkandState of' New York this 22nd day q I of March AQD. 1930.

GEORGE I. STANFORD.