Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3094197 A
Publication typeGrant
Publication dateJun 18, 1963
Filing dateApr 30, 1958
Priority dateApr 30, 1958
Publication numberUS 3094197 A, US 3094197A, US-A-3094197, US3094197 A, US3094197A
InventorsAttwood Warren R
Original AssigneeAttwood Warren R
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Building construction element
US 3094197 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

June 18, 1963 w. R. ATTWOOD BUILDING CONSTRUCTION ELEMENT Filed April 30. 95

- INVENTOR. iaMI/x i -lama! WM ATTO RNEYS United States Patent 3,094,197 BUILDING CONSTRUCTION ELEMENT Warren R. Attwood, 4118 S. Wayne Road, Wayne, Mich. Filed Apr. 30, 1958, Ser. No. 731,997 Claims. (Cl. 189-34) The present invention relates to structural elements for use in building or analogous construction and specifically for metal members to be used in constructing framework or other load supporting structures and to a process of producing such elements.

Among the objects of the invention is to provide a structural element that may be connected to other structural elements by bolting two or more of the elements together directly or by using suitable connecting brackets or the like.

Another object of the invention is to provide a metal construction element which itself will be provided with a plurality of potential bolting locations for the insertion of bolts or screws Without materially weakening the strength of the element.

Still another object is to provide a metal structural element in which a bolt hole may be made at any one of a plurality of locations, without the necessity of using a drill or punch, while maintaining substantially the full strength of the element.

Other objects will readily occur to those skilled in the art to which the invention pertains upon reference to the following description and the accompanying drawings in which FIGURES 1 to 4 and 8 show in perspective several forms of structural elements embodying the present invention.

FIGURE 5 is a diagrammatic sectional view through a portion of one of the elements of FIGURES 1 to 4 in an intermediate stage of its preparation.

FIGURE 6 is a similar view to that of FIGURE 5 but shows the final position of the parts.

FIGURE 7 is a view in plan of a portion of one of the elements shown in FIGURES '1 to 4.

In the drawings, FIGURES l to 4 and 8 show portions of structural members each having at least one flat side, FIG. 8 showing a strip having rolled edges, FIGS. 1 and 2 showing open channels, FIG. 3, an angle member, and FIG. 4 showing a special form of channel member in which the channel walls are turned in at right angles and their edge portions again turn in at right angles to produce a rectangular section member having a longitudinal slot bordered by inturned flanges.

In all of these forms, the structural element consists of a member having one or more fiat sides or faces. In these forms having two or more fla-t sides or faces and with two adjacent faces at an angle to each other, while the angle is indicated as a right angle, a greater or smaller angle may be used without departing from the spirit of the invention.

As stated above, each of the elements is provided with means, by taking advantage of Which, bolt holes may be produced at any one or more of a plurality of locations. This means is "a special form of knockout such as is indicated in FIGURES 5, 6 and 7.

In these figures, a piece of the sheet metal is indicated at 10. In the process of preparing the knockout, a disc 11 of the desired diameter is first punched in such fashion as to almost but not completely removed it from the surrounding matrix metal. In punching up the disc 11, a special punch having a rather flat V-shaped end is used; that is, the punch end shows a low ridge across it, the planes on either side of the apex being flat and show an angle to the horizontal, the term horizontal referring to a plane normal to the axis of the punch. This also slightly elongates the disc.

After the disc 11 is punched up to about the position shown in FIG. 5, it is then by suitable means forced back into the plane of the matrix metal and at the same time flattened into such plane. This operation of returning and flattening the disc 11 results not only in the disc being held against accidental displacement, but, more important, it pre-stresses the matrix metal in the manner indicated by the areas A and B of FIGURE 7.

In this figure, the matrix metal over approximately the areas A is indicated as put into a compression stress, while over approximately the areas B, it is put into tension.

The pre-stressing of the metal in the manner indicated results in a more equable distribution of the load resistance when a member such as shown in FIGURES 1 to 4 is put under longitudinal compression, and the compression strength of the member is substantially equal to that of a similar continuous member.

While the above description of the preferred embodiment of the invention specifically mentions the use of a punch having a V-shaped end, it is within the purview of the invention to utilize a punch having a conical end and thus production stresses in the member other than the linear stresses described.

Further, while the knockouts are shown and described as circular discs, other shapes may be found desirable and are contemplated.

I claim:

1. A metallic structural element comprising a load transmitting member having at least one flat portion, a plurality of spaced knockouts disposed in the plane of said flat portion, said knockouts pressing against the adjacent metal of said member at all times and producing stress in the metal intermediate said knockouts.

2. A metallic structural element comprising a load transmitting member having at least one flat portion, a plurality of spaced knockouts disposed in the plane of said flat portion, said knockouts pressing at all times against the adjacent metal of said member and producing compression stresses, portions of the metal intermediate some knockouts and producing tension stresses in the metal in termediate other of said knockouts.

3. A metallic structural element comprising an elongated load transmitting member having at least one flat portion in which is provided a longitudinally extending series of knockouts disposed in the plane of said flat portion, said knockouts at all times pressing against the adjacent metal of said member substantially in the longitudinal direction thereof and effecting compression stresses in the metal between the knockouts of said series and tension stresses in the metal adjacent to and parallel with said series.

4. A metallic structural element comprising an elongated load transmitting member having at least two flat portions angularly disposed with respect to each other in which said flat portions are provided with longitudinally extending series of knockouts disposed in the plane of said fiat portions, said knockouts at all times pressing against the adjacent metal of said member substantially in the longitudinal direction thereof and efiecting compression stresses in the metal between the knockouts of said series and tension stresses in the metal adjacent to and parallel with said series.

5. A metallic structural element comprising a load transmitting member having at least one flat tace portion, a plurality of rows of spaced knockouts disposed in the plane :of said flat portion, said knockouts pressing against the adjacent metal of said member at all times in directions parallel with said rows and producing compression Patented June .18, 1963 3 stresses in :the metal intermediate rthe knockouts of each row and producing tension stresses in the metal intermediate said rows.

References Cited in the file of this patent UNITED STATES PATENTS 4 Jacoby Apr. 14, 1931 Hefier et a1. Apr. 25, 1944 Gripe Aug. 5, 1952 M acKenzie Mar. 24, 1953 Drake -2 Feb. 7, 1956 Mudd July 9, 1957 FOREIGN PATENTS Australia Jan. 29, 1957

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1096548 *Jun 17, 1912May 12, 1914Allino Switch Box Mfg CompanySwitch-box.
US1491325 *Aug 19, 1922Apr 22, 1924Thomas & Betts CorpFitting for electrical conduits, outlet boxes, and the like
US1801006 *Dec 3, 1927Apr 14, 1931La Mont CorpSealing closure and method of applying same
US2347411 *Dec 12, 1942Apr 25, 1944Butler Manufacturing CoMethod of locating holes in structural members
US2605868 *Jul 10, 1946Aug 5, 1952Cripe Alan RStair unit for prefabricated stairways
US2632533 *Nov 3, 1950Mar 24, 1953Alexander Mackenzie JamesConstructional element
US2733786 *Dec 10, 1952Feb 7, 1956 Drake
US2798284 *Mar 2, 1954Jul 9, 1957Lionweld LtdMethods of connecting intersecting members
AU205848B * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3206791 *Apr 2, 1963Sep 21, 1965Beer HansSupporting slide rail
US3210827 *Aug 23, 1961Oct 12, 1965Kohlhagen WalterMethod of making field plates for synchronous motors
US3470598 *May 21, 1965Oct 7, 1969Viggo BerthelsenMethod of making structural elements
US4236473 *Apr 13, 1979Dec 2, 1980Belt Wesley DMethod of making metal beam for geodesic dome structure
US4383354 *Apr 23, 1981May 17, 1983Saurenman Phillip EMethod of forming an interlocking metal joint
US4538647 *Mar 16, 1983Sep 3, 1985Saurenman Phillip EInterlocked metal seam structure with in-plane stabilization
US4964256 *Jan 5, 1990Oct 23, 1990Economy Forms CorporationBeam member for concrete forming system
US5058269 *Aug 30, 1990Oct 22, 1991May Fabricating Company, Inc.Method of forming rectangular metal tubes
US5315803 *Aug 30, 1990May 31, 1994Saf-T Corp.Frame brace
US5806249 *Jun 28, 1996Sep 15, 1998Helms; Joe L.Plastic timber landscaping system
US6205740 *Sep 10, 1998Mar 27, 2001Lindab Ab (Publ)Supporting element and method for manufacturing the same
US6381913 *Jul 6, 2001May 7, 2002Thomas Ross HerrenStud for construction of seismic and fire resistant shaft walls
US6398260Nov 10, 1997Jun 4, 2002Dana CorporationSide rail for a vehicle frame assembly
US6401412 *Apr 10, 2000Jun 11, 2002John CooperMetal roof system
US6523315 *Mar 16, 2001Feb 25, 2003Dan E. FordAttachments and devices for straightening, squaring and aligning support members to receive exterior finishing members and methods therefor
US6990782 *May 20, 2002Jan 31, 2006Nippon Steel CorporationMethod for assembling building with thin and lightweight shaped-steel members
US7231744May 20, 2005Jun 19, 2007John CooperRoof venting system for improved interior air quality and hot water and electricity production
US7318302 *Feb 3, 2004Jan 15, 2008Opperman Investments, Ltd.Equipment support for a metal building
US7353640 *Feb 25, 2002Apr 8, 2008Mark StutlerFresh masonry wall protection device and method for rapidly protecting a newly laid masonry wall
US7739850Jun 15, 2007Jun 22, 2010Dietrich Industries, Inc.Building construction components
US8234836Jul 18, 2005Aug 7, 2012Jeffrey A. AndersonMethod of manufacturing a metal framing member
US8677716 *Aug 5, 2003Mar 25, 2014Jeffrey A. AndersonMetal framing member and method of manufacture
US8763347Feb 1, 2011Jul 1, 2014Jeffrey A. AndersonApparatus for manufacturing a metal framing member
US20120037867 *Aug 3, 2011Feb 16, 2012Dallas Rex JamesBarriers
US20120217352 *Aug 30, 2010Aug 30, 2012Oglaend System AsLength Profile Device
DE2842584A1 *Sep 29, 1978Apr 3, 1980Csongrad Megyei Tanacsi EpitoeUniversales baugerippe
EP1484454A2 *Jun 1, 2004Dec 8, 2004Christos KaraoulisSpace lattice works-bearing construction system, with frames of perforated angle plates of one or more angles
WO2002008536A2 *Jul 16, 2001Jan 31, 2002Dan E FordAttachments for support members and methods therefor
WO2004013423A2 *Aug 5, 2003Feb 12, 2004Jeffrey A AndersonMetal framing member and method of manufacture
WO2005085557A1 *Feb 4, 2004Sep 15, 2005Wayne Allen BeahmSafety framing wall holder
WO2010092563A1 *Feb 12, 2010Aug 19, 2010Kingspan Holdings (Irl) LimitedA framing system
Classifications
U.S. Classification52/100, 52/633, 52/843, 29/521, 29/522.1, 29/897.312
International ClassificationA47B96/00, A47B96/14
Cooperative ClassificationA47B96/1408
European ClassificationA47B96/14B