GB943881A - Lightweight trusses and apparatus for the fabricating of same - Google Patents

Lightweight trusses and apparatus for the fabricating of same

Info

Publication number
GB943881A
GB943881A GB663/62A GB66362A GB943881A GB 943881 A GB943881 A GB 943881A GB 663/62 A GB663/62 A GB 663/62A GB 66362 A GB66362 A GB 66362A GB 943881 A GB943881 A GB 943881A
Authority
GB
United Kingdom
Prior art keywords
web
chords
truss
carriage
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB663/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dominion Bridge Co Ltd
Original Assignee
Dominion Bridge Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dominion Bridge Co Ltd filed Critical Dominion Bridge Co Ltd
Publication of GB943881A publication Critical patent/GB943881A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/04—Making rigid structural elements or units, e.g. honeycomb structures composite sheet metal profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49616—Structural member making
    • Y10T29/49623—Static structure, e.g., a building component
    • Y10T29/49625—Openwork, e.g., a truss, joist, frame, lattice-type or box beam

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wire Processing (AREA)

Abstract

943,881. Making girders; corrugating. DOMINION BRIDGE CO. Ltd. Jan. 8, 1962 [Jan. 17, 1961], No. 663/62. Headings B3A and B3E. A machine for automatically making lightweight trusses each having a pair of chords of strip material and a wire web welded to said chords comprises a pair of cold-forming units to shape said chords from continuous strip, a web-bender to form said web from continuous wire, guide means for said chord and web, a common drive for said bender and coldforming units, two resistance welders to weld said web to said chords, a carriage for said welders and mechanism associated with said drive to advance said carriage at the speed of the chords during welding, a device to return said carriage after the welding operation, a flying saw and means actuated by said truss to cut the formed truss into predetermined lengths. The truss consists of a web 10 and two chords 11 which may have various crosssectional shapes, Figs. 4, 5 and 6 (not shown), and be formed with slits for receiving nails or screws. Coils of strip 50, Fig. 7, feed into coldforming units 51 and wire from a coil 52 passes through a straightener 54 and then into the web-bender 53. The formed components are brought together, straightened and the chords are then guided by form-fitting rolls 68 to bring the chords parallel and spaced apart in a horizontal plane, with the formed web therebetween. Two resistance welders 70 are mounted on a frame 71 which is driven in the direction of movement of the truss by a clutch and chain drive from the cold-forming machine. The clutch is operated by a plate cam also driven by the cold-forming machine. At each panel spacing in the truss the clutch is engaged and after a predetermined forward movement during which the welding cycle is completed the clutch disengages and an air cylinder returns the carriage. A flying saw carriage 86 is actuated when the leading end of the truss strikes a length gauge 85. The cut-off section is conveyed on a driven roller runway to an airless paint booth 100 and is then discharged on to drying skids 101. The web-bender consists of two chains of links 120 (Fig. 13), in which each link contains a tongue 121 which bears axially against a cam-plate 123. The wire 10 is engaged and bent by a pin 138, projecting from each tongue. Each link also has two bending anvils 142 which produce bending of the wire close to the pin so that the diagonal members of the web are straight.
GB663/62A 1961-01-17 1962-01-08 Lightweight trusses and apparatus for the fabricating of same Expired GB943881A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83228A US3158731A (en) 1961-01-17 1961-01-17 Light weight trusses and apparatus for the fabricating of same

Publications (1)

Publication Number Publication Date
GB943881A true GB943881A (en) 1963-12-11

Family

ID=22177000

Family Applications (1)

Application Number Title Priority Date Filing Date
GB663/62A Expired GB943881A (en) 1961-01-17 1962-01-08 Lightweight trusses and apparatus for the fabricating of same

Country Status (2)

Country Link
US (1) US3158731A (en)
GB (1) GB943881A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382695A (en) * 1965-12-10 1968-05-14 Dominion Bridge Co Ltd Web bender
US3427699A (en) * 1966-09-29 1969-02-18 Dominion Bridge Co Ltd Open web steel joist production line
US3961738A (en) * 1973-04-11 1976-06-08 C-O, Inc. Apparatus for making truss members
US3996443A (en) * 1975-04-23 1976-12-07 Klaus Keller Apparatus for the manufacture of reinforcement trusses
US4395615A (en) * 1980-08-15 1983-07-26 Tanenbaum Joseph M Apparatus for welding metal trusses
FR2669565A1 (en) * 1990-11-28 1992-05-29 Arbault Jean Device for automatically manufacturing tubular lattice girders
US8407966B2 (en) 2003-10-28 2013-04-02 Ispan Systems Lp Cold-formed steel joist
US20050108978A1 (en) * 2003-11-25 2005-05-26 Best Joint Inc. Segmented cold formed joist
US7587877B2 (en) * 2003-10-28 2009-09-15 Best Joist Inc Cold-formed steel joists
US8726606B2 (en) 2006-05-18 2014-05-20 Paradigm Focus Product Development Inc. Light steel trusses and truss systems
US8950151B2 (en) 2008-09-08 2015-02-10 Ispan Systems Lp Adjustable floor to wall connectors for use with bottom chord and web bearing joists
WO2011009204A1 (en) 2009-07-22 2011-01-27 Best Joist Inc. Roll formed steel beam
US20120103957A1 (en) * 2010-11-01 2012-05-03 Powers Iii John Metal stud fabricator
US8943776B2 (en) 2012-09-28 2015-02-03 Ispan Systems Lp Composite steel joist
CA3050000A1 (en) 2019-07-16 2021-01-16 Invent To Build Inc. Concrete fillable steel joist

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899537A (en) * 1959-08-11 Grebner
US1727894A (en) * 1927-01-24 1929-09-10 Fredellia H Moyer Bar-web-bending machine
US2210026A (en) * 1938-06-24 1940-08-06 Connors Steel Company Steel fabricated structural member
US2329789A (en) * 1939-11-16 1943-09-21 Mccord Radiator & Mfg Co Apparatus for making heatexchange elements
US2485282A (en) * 1943-07-29 1949-10-18 Green Douglas Harold Process for the manufacture of zigzag metal elements
US2649888A (en) * 1948-04-23 1953-08-25 Armco Steel Corp Mechanism for corrugating strips of material
US2624430A (en) * 1949-06-18 1953-01-06 Macomber Inc Fabricated joist
US2682133A (en) * 1952-02-20 1954-06-29 Guilleminot Roger Apparatus for the continuous production of corrugated sheet glass
BE536259A (en) * 1954-03-16
US2846561A (en) * 1957-02-01 1958-08-05 Albert F Pityo Method of and apparatus for forming u-shaped members and welding the same to metallic parts
US2957070A (en) * 1957-03-26 1960-10-18 Voigt & Haeffner Ag Welding

Also Published As

Publication number Publication date
US3158731A (en) 1964-11-24

Similar Documents

Publication Publication Date Title
GB943881A (en) Lightweight trusses and apparatus for the fabricating of same
US3283464A (en) Honeycomb girders and method for making same
GB1049600A (en) Method of and apparatus for the automatic continuous production of lattice girders
US2369830A (en) Strip handling apparatus
JPS6337048B2 (en)
US4090703A (en) Feeding apparatus for sheet material
US3213898A (en) Wire joint reinforcing making machine
US4796497A (en) Method and apparatus for cutting a chain of elongate products
US4713519A (en) Apparatus for laser beam welding the longitudinal edges of a can
US3851384A (en) Process for fabricating walls
ITTO20080342A1 (en) DEVICE FOR THE PRODUCTION OF WOODEN TABLES CHARACTERIZED BY GLUED LINES WITH CONICAL TEETH.
JPS59302B2 (en) Method for continuously welding directly continuous shackle and apparatus for carrying out this method
US3961738A (en) Apparatus for making truss members
US3194935A (en) Method and apparatus for manufacturing hinged panels of wire fabric
US2325230A (en) Notching and blank forming apparatus
US2580502A (en) Method and apparatus for welding the longitudinal seams of barrel blanks and the like
US2869591A (en) Apparatus adapted for the bending of wire strip material and the like
US4038128A (en) Insulation blanket shearing and applying machine for ductwork and the like
US3192963A (en) Manufacturing lattice frames
US3996443A (en) Apparatus for the manufacture of reinforcement trusses
US20030230555A1 (en) Method and device for producing a hollow profile
US1727894A (en) Bar-web-bending machine
US3427699A (en) Open web steel joist production line
US3280855A (en) Reinforcing cage apparatus
CN208810995U (en) A kind of Automatic-drawing shearing equipment of wire