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US3753326A - Hollow structural members - Google Patents

Hollow structural members Download PDF

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Publication number
US3753326A
US3753326A US00137555A US3753326DA US3753326A US 3753326 A US3753326 A US 3753326A US 00137555 A US00137555 A US 00137555A US 3753326D A US3753326D A US 3753326DA US 3753326 A US3753326 A US 3753326A
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Prior art keywords
components
component
structural member
recess
edge configuration
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US00137555A
Inventor
R Kaufman
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Cyclops Corp
Universal Cyclops Steel Corp
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Cyclops Corp
Universal Cyclops Steel Corp
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Assigned to MSL ACQUISTION CORPORATION, A DE CORP. reassignment MSL ACQUISTION CORPORATION, A DE CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CYCLOPS CORPORATION
Assigned to MELON BANK, N.A., ONE MELLON BANK CENTER, PITTSBURGH, PA 15258 reassignment MELON BANK, N.A., ONE MELLON BANK CENTER, PITTSBURGH, PA 15258 SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). , EFFECTIVE JUNE 30, 1987. Assignors: CYCLOPS CORPORATION
Assigned to CYCLOPS CORPORATION reassignment CYCLOPS CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: MSL ACQUISITION CORPORATION
Assigned to PITTSBURGH NATIONAL BANK, FIFTH AVENUE AND WOOD STREET, PITTSBURGH, PA 15265 reassignment PITTSBURGH NATIONAL BANK, FIFTH AVENUE AND WOOD STREET, PITTSBURGH, PA 15265 SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CYCLOPS CORPORATION
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/16—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons turbine blades; compressor blades; propeller blades
    • 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
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0439—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the cross-section comprising open parts and hollow parts
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/046—L- or T-shaped
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0473—U- or C-shaped
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0482—Z- or S-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/80—Platforms for stationary or moving blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/80—Platforms for stationary or moving blades
    • F05D2240/81—Cooled platforms

Definitions

  • the hollow structural member is formed by connecting the plain formed remaining portion of a first component with the specially formed edge configuration of a second component and connecting the plain formed portion of the second component with the specially formed edge configuration of the first component or a third component, etc., these connections being inward from the outer extremities of the special formed edge configurations and being along a recess in an enlarged mass portion of the special formed edge configuration.
  • FIG. 3 is a section through an I-shaped structural HOLLOW STRUCTURALMEMBERS
  • This application is a division of US. Pat. No. 3,606,580, issued Sept. 20, I97I, which, in turn, is a continuation-in-part of my application Ser. No. 823,924, filed May 12, I969, now abandoned.
  • This invention relates to hollow structural members.
  • structural members other than the standard solid structurals known heretofore. Standard structurals made by forging, casting, cold drawing,-extruding, cold rolling and machining are often too expensive as well, especially where additional operations are necessary to accomplish a particular desired configuration.
  • My structural members are hollow and, therefore, the weight thereof is greatly minimized, thereby permitting greater material flexibility.
  • structural members permit manufacture in a simple, efficient and high yield manner, thereby minimizing costs. Since the individual components which make up my hollow structural members are of relatively thin cross section, they maybe formed into intricate shapes so that the final assembled product has configurations which normally are not achievable by standard processing methods.
  • My hollow structural members consist .of wrought metal components having a special formed edge configuration including an enlarged mass portion and a recess therein and a plain formed remaining portion. These components are blanked from precision rolled elongated shapes and after forming are positioned and joined in a manner that the plain formed remaining portion of one component cooperates with the recess in the enlarged mass areaiof the specially formededge configuration of another component to form a direct and continuous connection and all the components are so positioned and joinedtoform the, hollow structural member. No two adjacent connections are along the same face of the member.
  • FIG. 1 is a section through a hollow T-shaped structural member
  • FIG. 2 is a section through another shaped structural member
  • FIG. 4 is a section through another structural member
  • FIG. 5 is a section through still another structural member.
  • Each of the hollow structural members is constructed by precision rolling a wrought metal bar into an elongated shape having a specially formed edge configuration which includes an enlarged mass portion and a recess therein and a plain formed remaining portion.
  • the elongated shape is then blanked to the desired size and this operation may merely entail squaring off the ends of the elongated shape where the elongated shape is of the approximate desired length.
  • the components are .fornied by known techniques into the desired shapes.
  • the components areth'en assembled so that a plain formed remaining portion 67 cooperates in a direct and continuous manner with the recess 68 in the enlarged mass portion of a specially formed edge configuration 69 of another component.
  • the components are then joined by brazing, welding or other known techniques.
  • the recess 68 in the enlarged mass portion is formed inward of the extreme end thereof so that edge damage does not effect the connection.
  • Each connection occurs along an enlarged mass portion for additional support and ease of handling the components during joining.
  • the components are formed and positioned so that adjacent connections are on different. .faces of the structural members and in this way no single shear plane can pass through more than'one connection.
  • Ser. No. 864,927 directed to hollow airfoils, the hollow structurals can be tapered by blanking the components into trapezoidal shapes prior to joining them.
  • a T-shaped structural is formed of three components 50, 51 and 52. Two of the components 50 and 52 are bent at 90 and are positioned so that the bent portions flare outwardly in opposite directions along the same plane. These flared out portions are joined by straight component 51.
  • Each component 50, 51 and 52 has a'specially formed end configuration 69- including an enlarged mass having a recess 68 therein and a plain formed remaining portion 67. The positioning of the components, the connection thereof and the location of the connection with respect to the edges of the member and to other connections, are all in accordance with my invention as described heretofore.
  • FIG. 2 A two component hollow structural with each component having double reversed 90 bends is illustrated in FIG. 2.
  • Components 53 and 54 are double reverse bent and then positioned and joined in accordance with the invention.
  • An I-shaped structural is constructed by employing four components 55, 56, 57 and 58, see FIG. 3.
  • the two components 55 and 57 which form the web of the I-shaped structural are each bent at each end and positioned so that the outwardly bent sections are oppositely directed along asame plane from those of the other component.
  • Components 56 and 58, respectively, form the base of the I-shaped structural and are' connected to the outwardly flared sections of the web components 55 and 57 in accordance with my invention.
  • the individual components can be bent immediately adjacent the specially formed edge configuration, as
  • FIG. 4 to form a modification of the structural member illustrated in FIG. 2.
  • Component 60 is so bent and then joined with components 59 and 61 in accordance with my invention.
  • each component is formed with four acute angle bends therein. Again, the positioning and connecting of the components 62 and 63 is in accordance with the invention.
  • a simple U-shaped, hollow structural support can be i I formed of two components 64 and 65, see FIG. 6, by
  • my structural members can be extrudedor otherwise formed as well as precision rolled. Where precisionrolling is employed, sheet stock as well as bar stock can be utilized.
  • My structural members may be further modified by internal supports for stiffness or filler materials to give strength or heat transmitting properties to the overall structural membet.
  • a hollow structural member comprising three connected wrought metal components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relativelythin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, two of said components having opposing 90 bends, said three components being joined to form a hollow T-shaped structural member, and each adjacent connection being on difl'erent faces of the structural member.
  • 2.'A'hon6wimema1 member comprising two connected wrought metal components, each component having two 99 bends in the same direction, a specially formed edge configuration including an enlarged mass portion with a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of the other component, the two components being joined to form a U-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
  • a hollow structural member comprising four connected wrought metal components, two of said components each having 90 bends in the same direction, said two components positioned so that said 90 bends are oppositely directed, the remaining two components being straight and connecting to the bent components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the en-- larged mass portion of the specially formed edge configuration of another component, the four components being joined to form an l-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

A hollow structural member comprising at least two connected wrought metal components, each component having a specially formed edge configuration and a plain formed remaining portion. The hollow structural member is formed by connecting the plain formed remaining portion of a first component with the specially formed edge configuration of a second component and connecting the plain formed portion of the second component with the specially formed edge configuration of the first component or a third component, etc., these connections being inward from the outer extremities of the special formed edge configurations and being along a recess in an enlarged mass portion of the special formed edge configuration.

Description

ilnited States Patent 1191 Kaufman, Sr.
[ HOLLOW STRUCTURAL MEMBERS [75] Inventor: Ralph O. Kaufman, Sr., Titusville,
Pa. [73] Assignee: Cyclops Corporation,
' Universal-Cyclops Specialty Steel Division, Pittsburgh, Pa. [22] Filed: Apr. 26, 1971 [2]] Appl. No: 137,555
Related 1.1.8. Application Data [60] Division of Ser. No. 864,927, Sept. 10, 1969, Pat. No. 3,606,580, which is a continuation-in-part of Ser. No. 823,924, May 12, 1969, abandoned.
1111 3,753,326 145] Aug. 21, 1973 604,504 9/1060 Canada 52/632 405,551 8/1934 Great Britain 52/730 413,711 7/1934 Great Britain 52/731 Primary Examiner-Frank L. Abbott Assistant Examiner-Henry E. Raduazo Attorney-Webb, Burden, Robinson & Webb 57 AnsTnAcT A hollow structural member comprising at least two connected wrought metal components, each component having a specially formed edge configuration and a plain formed remaining portion. The hollow structural member is formed by connecting the plain formed remaining portion of a first component with the specially formed edge configuration of a second component and connecting the plain formed portion of the second component with the specially formed edge configuration of the first component or a third component, etc., these connections being inward from the outer extremities of the special formed edge configurations and being along a recess in an enlarged mass portion of the special formed edge configuration.
3 Claims, 6 Drawing Figures PAIENIEDIIIBZI an 3.753326 INVENTUR. Ralph 0. Kaufman, 5K
Hi5 ATTUfiNEK member;
FIG. 3 is a section through an I-shaped structural HOLLOW STRUCTURALMEMBERS This application is a division of US. Pat. No. 3,606,580, issued Sept. 20, I97I, which, in turn, is a continuation-in-part of my application Ser. No. 823,924, filed May 12, I969, now abandoned. This invention relates to hollow structural members. As a result of unique shape, weight, chemical and physical property requirements, there is needed structural members other than the standard solid structurals known heretofore. Standard structurals made by forging, casting, cold drawing,-extruding, cold rolling and machining are often too expensive as well, especially where additional operations are necessary to accomplish a particular desired configuration.
My structural members are hollow and, therefore, the weight thereof is greatly minimized, thereby permitting greater material flexibility. In addition, my
structural members permit manufacture in a simple, efficient and high yield manner, thereby minimizing costs. Since the individual components which make up my hollow structural members are of relatively thin cross section, they maybe formed into intricate shapes so that the final assembled product has configurations which normally are not achievable by standard processing methods.
' My hollow structural members consist .of wrought metal components having a special formed edge configuration including an enlarged mass portion and a recess therein and a plain formed remaining portion. These components are blanked from precision rolled elongated shapes and after forming are positioned and joined in a manner that the plain formed remaining portion of one component cooperates with the recess in the enlarged mass areaiof the specially formededge configuration of another component to form a direct and continuous connection and all the components are so positioned and joinedtoform the, hollow structural member. No two adjacent connections are along the same face of the member.
In the accompanying drawings I have shown my presently preferred embodiments of my invention in which:
FIG. 1 is a section through a hollow T-shaped structural member;
FIG. 2 is a section through another shaped structural member;
' FIG. 4 is a section through another structural member;
- FIG. 5 is a section through still another structural member.
Each of the hollow structural members, illustrated in 6 FIGS. 1-6, is constructed by precision rolling a wrought metal bar into an elongated shape having a specially formed edge configuration which includes an enlarged mass portion and a recess therein and a plain formed remaining portion. The elongated shape is then blanked to the desired size and this operation may merely entail squaring off the ends of the elongated shape where the elongated shape is of the approximate desired length. After blanking, the components are .fornied by known techniques into the desired shapes.
The components areth'en assembled so that a plain formed remaining portion 67 cooperates in a direct and continuous manner with the recess 68 in the enlarged mass portion of a specially formed edge configuration 69 of another component. The components are then joined by brazing, welding or other known techniques. The recess 68 in the enlarged mass portion is formed inward of the extreme end thereof so that edge damage does not effect the connection. Each connection occurs along an enlarged mass portion for additional support and ease of handling the components during joining. Further, the components are formed and positioned so that adjacent connections are on different. .faces of the structural members and in this way no single shear plane can pass through more than'one connection. As described in my parent application, Ser. No. 864,927 directed to hollow airfoils, the hollow structurals can be tapered by blanking the components into trapezoidal shapes prior to joining them.
Specifically, a T-shaped structural, FIG. 1, is formed of three components 50, 51 and 52. Two of the components 50 and 52 are bent at 90 and are positioned so that the bent portions flare outwardly in opposite directions along the same plane. These flared out portions are joined by straight component 51. Each component 50, 51 and 52, has a'specially formed end configuration 69- including an enlarged mass having a recess 68 therein and a plain formed remaining portion 67. The positioning of the components, the connection thereof and the location of the connection with respect to the edges of the member and to other connections, are all in accordance with my invention as described heretofore.
A two component hollow structural with each component having double reversed 90 bends is illustrated in FIG. 2. Components 53 and 54 are double reverse bent and then positioned and joined in accordance with the invention.
An I-shaped structural is constructed by employing four components 55, 56, 57 and 58, see FIG. 3. The two components 55 and 57 which form the web of the I-shaped structural are each bent at each end and positioned so that the outwardly bent sections are oppositely directed along asame plane from those of the other component. Components 56 and 58, respectively, form the base of the I-shaped structural and are' connected to the outwardly flared sections of the web components 55 and 57 in accordance with my invention.
The individual components can be bent immediately adjacent the specially formed edge configuration, as
shown in FIG. 4, to form a modification of the structural member illustrated in FIG. 2. Component 60 is so bent and then joined with components 59 and 61 in accordance with my invention.
The components need not be bent at as illustrated in FIG. '5 wherein a two component, 62 and 63,
system forms a structural shape in which each component is formed with four acute angle bends therein. Again, the positioning and connecting of the components 62 and 63 is in accordance with the invention.
' A simple U-shaped, hollow structural support can be i I formed of two components 64 and 65, see FIG. 6, by
forming two bends of 90 in each component and join- I ing them in accordance with the invention.
The components employed in my structural members can be extrudedor otherwise formed as well as precision rolled. Where precisionrolling is employed, sheet stock as well as bar stock can be utilized. My structural members may be further modified by internal supports for stiffness or filler materials to give strength or heat transmitting properties to the overall structural membet.
I claim:
1. A hollow structural member comprising three connected wrought metal components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relativelythin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, two of said components having opposing 90 bends, said three components being joined to form a hollow T-shaped structural member, and each adjacent connection being on difl'erent faces of the structural member.
2.'A'hon6wimema1 member comprising two connected wrought metal components, each component having two 99 bends in the same direction, a specially formed edge configuration including an enlarged mass portion with a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of the other component, the two components being joined to form a U-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
3. A hollow structural member comprising four connected wrought metal components, two of said components each having 90 bends in the same direction, said two components positioned so that said 90 bends are oppositely directed, the remaining two components being straight and connecting to the bent components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the en-- larged mass portion of the specially formed edge configuration of another component, the four components being joined to form an l-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
* II! t =0

Claims (3)

1. A hollow structural member comprising three connected wrought metal components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, two of said components having opposing 90* bends, said three components being joined to form a hollow T-shaped structural member, and each adjacent connection being on different faces of the structural member.
2. A hollow structural member comprising two connected wrought metal components, each component having two 90* bends in the same direction, a specially formed edge configuration including an enlarged mass portion with a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of the other component, the two components being joined to form a U-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
3. A hollow structural member comprising four connected wrought metal components, two of said components each having 90* bends in the same direction, said two components positioned so that said 90* bends are oppositely directed, the remaining two components being straight and connecting to the bent components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, the four components being joined to form an I-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
US00137555A 1969-09-10 1971-04-26 Hollow structural members Expired - Lifetime US3753326A (en)

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US4002000A (en) * 1975-06-30 1977-01-11 Palmer-Shile Company Beam construction and method of manufacture
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US6332301B1 (en) * 1999-12-02 2001-12-25 Jacob Goldzak Metal beam structure and building construction including same
US20040031230A1 (en) * 2002-08-19 2004-02-19 Pabedinskas Arunas Antanas Hollow flanged joist for deck framing
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US20070137134A1 (en) * 2005-09-02 2007-06-21 Tecton Products Structural wall building product
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US10443896B2 (en) 2016-07-29 2019-10-15 Rmh Tech Llc Trapezoidal rib mounting bracket with flexible legs
US10502457B2 (en) 2010-03-03 2019-12-10 Robert M. M. Haddock Photovoltaic module mounting assembly
US10634175B2 (en) 2011-12-29 2020-04-28 Rmh Tech Llc Mounting device for nail strip panels
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US10948002B2 (en) 2018-12-14 2021-03-16 Rmh Tech Llc Mounting device for nail strip panels
US11041310B1 (en) 2020-03-17 2021-06-22 Rmh Tech Llc Mounting device for controlling uplift of a metal roof
US11352793B2 (en) 2020-03-16 2022-06-07 Rmh Tech Llc Mounting device for a metal roof
US11774143B2 (en) 2017-10-09 2023-10-03 Rmh Tech Llc Rail assembly with invertible side-mount adapter for direct and indirect mounting applications
US11982205B1 (en) 2022-12-28 2024-05-14 General Electric Company Airfoil having a spar assembly for a turbine engine
US12203496B2 (en) 2020-07-09 2025-01-21 Rmh Tech Llc Mounting system, device, and method

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Cited By (54)

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US4002000A (en) * 1975-06-30 1977-01-11 Palmer-Shile Company Beam construction and method of manufacture
US5483782A (en) * 1994-01-03 1996-01-16 Hall; Donald M. Load bearing beam having corrosion resistant cladding
WO1998036959A2 (en) * 1997-02-19 1998-08-27 Ngb Technologies Method of joining and reinforcing molded plastic bicycle frames
WO1998036959A3 (en) * 1997-02-19 1998-11-19 Techmatics Inc Method of joining and reinforcing molded plastic bicycle frames
US6123353A (en) * 1997-02-19 2000-09-26 Techmatics, Inc. Method of joining and reinforcing molded plastic bicycle frames
US6332301B1 (en) * 1999-12-02 2001-12-25 Jacob Goldzak Metal beam structure and building construction including same
US20040031230A1 (en) * 2002-08-19 2004-02-19 Pabedinskas Arunas Antanas Hollow flanged joist for deck framing
US6826884B2 (en) * 2002-08-19 2004-12-07 Arunas Antanas Pabedinskas Hollow flanged joist for deck framing
US7882679B2 (en) 2004-08-02 2011-02-08 Tac Technologies, Llc Engineered structural members and methods for constructing same
US8266856B2 (en) 2004-08-02 2012-09-18 Tac Technologies, Llc Reinforced structural member and frame structures
US8938882B2 (en) 2004-08-02 2015-01-27 Tac Technologies, Llc Reinforced structural member and frame structures
US7721496B2 (en) * 2004-08-02 2010-05-25 Tac Technologies, Llc Composite decking material and methods associated with the same
US7213379B2 (en) 2004-08-02 2007-05-08 Tac Technologies, Llc Engineered structural members and methods for constructing same
US8438808B2 (en) 2004-08-02 2013-05-14 Tac Technologies, Llc Reinforced structural member and frame structures
US7930866B2 (en) 2004-08-02 2011-04-26 Tac Technologies, Llc Engineered structural members and methods for constructing same
US20110179647A1 (en) * 2004-08-02 2011-07-28 Barry Carlson Lightweight structural building element
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US20110067332A1 (en) * 2005-09-02 2011-03-24 Tecton Products, Llc Structural wall building product
US8146321B2 (en) * 2005-09-02 2012-04-03 Tecton Products, Llc Structural wall building product
US8033076B2 (en) 2005-09-02 2011-10-11 Tecton Products Structural wall building product
US20070137134A1 (en) * 2005-09-02 2007-06-21 Tecton Products Structural wall building product
US8065848B2 (en) 2007-09-18 2011-11-29 Tac Technologies, Llc Structural member
US20090075031A1 (en) * 2007-09-18 2009-03-19 Carlson Barry L Structural member
US8656649B2 (en) * 2009-07-23 2014-02-25 Robert M. M. Haddock Roof framing structure using triangular structural framing
US20140360119A1 (en) * 2009-07-23 2014-12-11 Robert M.M. Haddock Roof framing structure using triangular structural framing
US9222263B2 (en) * 2009-07-23 2015-12-29 Robert M. M. Haddock Roof framing structure using triangular structural framing
US10502457B2 (en) 2010-03-03 2019-12-10 Robert M. M. Haddock Photovoltaic module mounting assembly
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US11333179B2 (en) 2011-12-29 2022-05-17 Rmh Tech Llc Mounting device for nail strip panels
US10443896B2 (en) 2016-07-29 2019-10-15 Rmh Tech Llc Trapezoidal rib mounting bracket with flexible legs
US12044443B2 (en) 2016-07-29 2024-07-23 Rmh Tech Llc Trapezoidal rib mounting bracket with flexible legs
US11573033B2 (en) 2016-07-29 2023-02-07 Rmh Tech Llc Trapezoidal rib mounting bracket with flexible legs
US10859292B2 (en) 2016-07-29 2020-12-08 Rmh Tech Llc Trapezoidal rib mounting bracket with flexible legs
US11085188B2 (en) 2016-10-31 2021-08-10 Rmh Tech Llc Metal panel electrical bonding clip
US11808043B2 (en) 2016-10-31 2023-11-07 Rmh Tech Llc Metal panel electrical bonding clip
US10640980B2 (en) 2016-10-31 2020-05-05 Rmh Tech Llc Metal panel electrical bonding clip
US11774143B2 (en) 2017-10-09 2023-10-03 Rmh Tech Llc Rail assembly with invertible side-mount adapter for direct and indirect mounting applications
US12231081B2 (en) 2018-03-21 2025-02-18 Rmh Tech Llc PV module mounting assembly with clamp/standoff arrangement
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