US2473976A - Metallic structural element - Google Patents

Metallic structural element Download PDF

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Publication number
US2473976A
US2473976A US518902A US51890244A US2473976A US 2473976 A US2473976 A US 2473976A US 518902 A US518902 A US 518902A US 51890244 A US51890244 A US 51890244A US 2473976 A US2473976 A US 2473976A
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portions
structural element
metallic structural
flanges
spaced
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US518902A
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John C Timm
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Definitions

  • the present invention relates to metal structural elements and more particularly to expanded structural shapes adapted to be employed as beams, girders, struts, and the like.
  • the elements may be used in the construction of buildings, ships, airplanes, reinforced concrete, and in analogous structures.
  • the principal object of the invention is to cut and expand the webs of rolled shapes such as channels, and other similar shapes to form, from a single integral length of metal, beams or girders, these elements for the most part being made without riveting, welding, or otherwise fastening parts thereof, resulting in a saving of metal while at the same time producing strong structural elements.
  • Figs. 1 and 2 are fragmentary perspectives and Fig. 3 an end view of a double channel member before and after expansion.
  • the structural member comprises a centrally disposed inverted channel portion 99 to the lower edges of which are integrally connected angle portions 38, 38, having inwardly directed horizontal flanges 40. All, and vertical flanges 44, M.
  • the horizontal flanges of the angle portions are slit at ll to form Z-shaped cuts.
  • the portion 39 forms an upper chord 42 to which the lower chords 43 are connected by ties 28.
  • the intermediate portions of the side angles are spaced vertically from the upper chord to form lower chords and that the end portions of the side angles are inclined upwardly to form diagonals 45 and horizontal terminal portions 66, 46', the horizontal flanges of which are connected with the chord 42 at the lower edges of the latter.
  • a preferred embodiment of the invention has been illustrated and described, but it will be noted that in this form the Z-slits are made in the web of a rolled shape and that one portion of the web is so displaced with respect to the re mainder of the web that the relatively displaced portions lie in spaced parallel planes. It is also to be noted that in the illustrated form of the invention that the ties connecting the relatively spaced portions of the webs are integral therewith. It may further be observed that in the embodiment illustrated there are flanged portions normal and connected to the displaced portions of the webs. Hence, it will be seen that structural elements, employing a minimum of metal but possessing great strength, may be produced from a single length of a rolled shape, the metal being so cut and expanded that the elements are integrally formed without resorting to extra connecting means.
  • a sheet metal beam element comprising a channel portion having downwardly turned flanges extending from end to end of the beam, a pair of portions, angle shaped in cross-section, said portions being transversely spaced outwardly and on opposite sides of said channel portion, each of said spaced portions comprising in cross-section an outwardly positioned vertical flange and an inwardly directed horizontal flange, the medial portion of each of said inwardly directed flanges being parallel to but spaced from said channel portion, and a plurality of vertical web elements integrally connected to said channel portion and to said medial portions, the terminal ends of said inwardly directed flanges lying in the same plane as the edges of said channel portion and integrally connected thereto, each or" said angle shaped portions having a diagonally positioned part at each end of said medial portion connecting said medial portion to the terminal ends of that angle-shaped portion.

Description

June 21, 1949. g, c, T|MM 2,473,976
METALLIC STRUCTURAL ELEMENT Filed Jan. 1.9, 1944 INVENTOR. /0///\/ C. T/MM ATTORNEYS.
Patented June 21, 1949 UNITED STATES PATENT OFFICE 1 Claim.
The present invention relates to metal structural elements and more particularly to expanded structural shapes adapted to be employed as beams, girders, struts, and the like. The elements may be used in the construction of buildings, ships, airplanes, reinforced concrete, and in analogous structures.
The principal object of the invention is to cut and expand the webs of rolled shapes such as channels, and other similar shapes to form, from a single integral length of metal, beams or girders, these elements for the most part being made without riveting, welding, or otherwise fastening parts thereof, resulting in a saving of metal while at the same time producing strong structural elements.
The invention will be more fully understood from the following description of certain forms thereof, reference being had to the accompanying drawings, in which:
Figs. 1 and 2 are fragmentary perspectives and Fig. 3 an end view of a double channel member before and after expansion.
Referring to Figs. 1, 2 and 3, it will be seen that the structural member comprises a centrally disposed inverted channel portion 99 to the lower edges of which are integrally connected angle portions 38, 38, having inwardly directed horizontal flanges 40. All, and vertical flanges 44, M. The horizontal flanges of the angle portions are slit at ll to form Z-shaped cuts. When so slit and then expanded, as illustrated in Fig. 2, the portion 39 forms an upper chord 42 to which the lower chords 43 are connected by ties 28. It will be noted that the intermediate portions of the side angles are spaced vertically from the upper chord to form lower chords and that the end portions of the side angles are inclined upwardly to form diagonals 45 and horizontal terminal portions 66, 46', the horizontal flanges of which are connected with the chord 42 at the lower edges of the latter.
A preferred embodiment of the invention has been illustrated and described, but it will be noted that in this form the Z-slits are made in the web of a rolled shape and that one portion of the web is so displaced with respect to the re mainder of the web that the relatively displaced portions lie in spaced parallel planes. It is also to be noted that in the illustrated form of the invention that the ties connecting the relatively spaced portions of the webs are integral therewith. It may further be observed that in the embodiment illustrated there are flanged portions normal and connected to the displaced portions of the webs. Hence, it will be seen that structural elements, employing a minimum of metal but possessing great strength, may be produced from a single length of a rolled shape, the metal being so cut and expanded that the elements are integrally formed without resorting to extra connecting means.
Having described my invention, what I claim as new and desire to secure by Letters Patent is:
A sheet metal beam element comprising a channel portion having downwardly turned flanges extending from end to end of the beam, a pair of portions, angle shaped in cross-section, said portions being transversely spaced outwardly and on opposite sides of said channel portion, each of said spaced portions comprising in cross-section an outwardly positioned vertical flange and an inwardly directed horizontal flange, the medial portion of each of said inwardly directed flanges being parallel to but spaced from said channel portion, and a plurality of vertical web elements integrally connected to said channel portion and to said medial portions, the terminal ends of said inwardly directed flanges lying in the same plane as the edges of said channel portion and integrally connected thereto, each or" said angle shaped portions having a diagonally positioned part at each end of said medial portion connecting said medial portion to the terminal ends of that angle-shaped portion.
JOHN C. TIMM.
REFERENCES CITED The following referenlces are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 799,653 Kahn Sept. 19, 1905 843,726 White Feb. 12, 1907 1,090,843 Golding Mar. 24, 1914 1,287,507 Stroebe Dec. 10, 1918 1,669,095 Macomber May 8, 1928 1,733,778 Connell Oct. 29, 1929 2,172,806 Probeck Sept. 12, 1939 2,185,384 Rafter Jan. 2, 1940 2,191,788 Collins Feb. 27, 1940 2,233,719 Vanderveld Mar. 4, 1941 FOREIGN PATENTS Number Country Date 56,075 Switzerland Feb. 14, 1912 138,420 Great Britain Feb. 12, 1920
US518902A 1944-01-19 1944-01-19 Metallic structural element Expired - Lifetime US2473976A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004640A (en) * 1958-02-07 1961-10-17 Macomber Inc Laminated tubular section structural members
US3091313A (en) * 1958-03-13 1963-05-28 Dan L Colbath Long span deck member
US3129493A (en) * 1961-06-20 1964-04-21 Charles Davis Ltd Methods for the manufacture of lightweight structural members
US3268089A (en) * 1965-02-16 1966-08-23 Palmer Shile Co Deck section for storage rack
WO2013023860A1 (en) * 2011-07-27 2013-02-21 Protektorwerk Florenz Maisch Gmbh & Co. Kg Construction profile and method and device for producing such a construction profile
US11898351B2 (en) * 2018-10-10 2024-02-13 Nucor Corporation Joist tie used in structural decking systems and method of installing

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US799653A (en) * 1905-03-24 1905-09-19 Trussed Concrete Steel Co Expanded-metal tension member.
US843726A (en) * 1906-07-27 1907-02-12 Gen Fireproofing Co Expanded metal structure.
CH56075A (en) * 1912-02-14 1912-10-01 Farbrik Nietloser Gittertraege Process for the production of longitudinal chords and latticework from flat metal bodies having webs connecting them
US1090843A (en) * 1912-01-29 1914-03-24 John F Golding Process for making metal fabric.
US1287507A (en) * 1916-06-13 1918-12-10 Berger Mfg Co Reinforcing-plate.
GB138420A (en) * 1919-02-05 1920-02-12 George Hutchinson Improvements in structural members for girders, columns and the like
US1669095A (en) * 1923-02-16 1928-05-08 Macomber Steel Company Structural unit
US1733778A (en) * 1927-04-14 1929-10-29 William S Connell Metal stud and joist
US2172806A (en) * 1938-06-14 1939-09-12 Fed Machine And Welder Company Method of making beams
US2185384A (en) * 1938-04-20 1940-01-02 Rafter Machine Company Structural member
US2191788A (en) * 1938-01-07 1940-02-27 Benjamin F Tomlin Structural steel member
US2233719A (en) * 1939-08-02 1941-03-04 Grand Rapids Store Equip Co Method of producing metal shelf support channels

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US799653A (en) * 1905-03-24 1905-09-19 Trussed Concrete Steel Co Expanded-metal tension member.
US843726A (en) * 1906-07-27 1907-02-12 Gen Fireproofing Co Expanded metal structure.
US1090843A (en) * 1912-01-29 1914-03-24 John F Golding Process for making metal fabric.
CH56075A (en) * 1912-02-14 1912-10-01 Farbrik Nietloser Gittertraege Process for the production of longitudinal chords and latticework from flat metal bodies having webs connecting them
US1287507A (en) * 1916-06-13 1918-12-10 Berger Mfg Co Reinforcing-plate.
GB138420A (en) * 1919-02-05 1920-02-12 George Hutchinson Improvements in structural members for girders, columns and the like
US1669095A (en) * 1923-02-16 1928-05-08 Macomber Steel Company Structural unit
US1733778A (en) * 1927-04-14 1929-10-29 William S Connell Metal stud and joist
US2191788A (en) * 1938-01-07 1940-02-27 Benjamin F Tomlin Structural steel member
US2185384A (en) * 1938-04-20 1940-01-02 Rafter Machine Company Structural member
US2172806A (en) * 1938-06-14 1939-09-12 Fed Machine And Welder Company Method of making beams
US2233719A (en) * 1939-08-02 1941-03-04 Grand Rapids Store Equip Co Method of producing metal shelf support channels

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004640A (en) * 1958-02-07 1961-10-17 Macomber Inc Laminated tubular section structural members
US3091313A (en) * 1958-03-13 1963-05-28 Dan L Colbath Long span deck member
US3129493A (en) * 1961-06-20 1964-04-21 Charles Davis Ltd Methods for the manufacture of lightweight structural members
US3268089A (en) * 1965-02-16 1966-08-23 Palmer Shile Co Deck section for storage rack
WO2013023860A1 (en) * 2011-07-27 2013-02-21 Protektorwerk Florenz Maisch Gmbh & Co. Kg Construction profile and method and device for producing such a construction profile
US11898351B2 (en) * 2018-10-10 2024-02-13 Nucor Corporation Joist tie used in structural decking systems and method of installing

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