Occasional Electronic Publication No. 1 - Society for Industrial ...

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Lattice Configurations Lucius E. Truesdell, Patent No. 15,048 (1856) Lucius E. Truesdell, Patent No. 24,068 (1859) John Briggs, Patent No. 38,653 (1863) Peter Weimer, Patent No. 118,566 (1871) 76
Pratt Configurations Vertical web members are in compression and diagonals in tension. The basic difference between these Pratt configurations is the cross-sectional shape of the various members of the truss and/or the way they are joined together. Wernwag 1829: Timber arched-truss configuration with single, iron diagonals in the panels in addition to cross-bracing timber diagonals. Pratt & Pratt 1844: Timber chords and verticals with crossed iron diagonals. Four-panel-long strut at ends. A second configuration with a curved top chord and without the multi-panel strut is also shown. Rider 1845: Cast-iron compression and wrought-iron tension members. Diagonals are bars not rods. Sprague, J. 1859: Iron pipe used for compression members, rods for tension members. Jacobs 1860: Timber except for crossed diagonals of continuous strapping. Canda 1869: Verticals and top-chord segments are tapered. Adams 1870: Swivel stirrups under posts. Lower chord is spliced with clevis and pin. Brundage 1870: Crossed diagonals in all panels. Tapered verticals. Convoluted joints. Truesdell 1870: Counter diagonal in end panel is anchored directly into masonry abutment. Canda 1871: Crossed diagonals. Tapered verticals. Morgan 1871: Wire rope used for bottom chord and cross-bracing in panels. Adler 1872: Hollow compression top chord. Bonnell 1872: Sloped end post. Joint variation. Bogardus 1874: Pratt-like capacity, but also functions as Howe and as a double-intersection Warren. Hammond & Abbott 1874 (Patent No. 150,151): Top chord composed of channels. Star iron verticals. Hammond & Abbott 1874 (Patent No. 150,152): Top chord composed of channels and tees. I-beam verticals. Hammond & Abbott 1874 (Patent No. 150,153): Top chord composed of plate and channels. I-beam verticals. Truesdell 1879: Iron. Crimped connections. 77
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Occasional Electronic Publication N
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Table of Contents Foreword.........
Page 5 and 6:
Introduction: American Truss Bridge
Page 7 and 8:
make the competition profitable. Sq
Page 9 and 10:
Part I Abstracts of American Truss
Page 12:
A Abbott, Job - see Hammond & Abbot
Page 15 and 16:
Beard- -Boles Beard, James 41,594 F
Page 17:
Briggs, J.- -Butterworth Briggs, Jo
Page 20:
Clarke- -Coultas Clarke, Thomas & A
Page 23:
Derrom- -Duval Derrom, Andrew 48,53
Page 27 and 28:
F Farnsworth, Edwin 159,084 Jan. 26
Page 30 and 31:
G Gassaway, Samuel 5,297 Sep. 18, 1
Page 33 and 34: H Hagg, Lewis - see Webb & Hagg Hal
Page 35 and 36: Hendrick - -Horton Hendrick, Peter
Page 38: I Ibel, Justus 250,921 Dec. 13, 188
Page 42 and 43: K Kandeler, G.F. Theodore 343,377 J
Page 45 and 46: L Laird, John (John Laird & Co., Ca
Page 47: Long- -Lowthorp Long, Stephen (cont
Page 50 and 51: McKay- -Mitchell, H. McKay, John 90
Page 52: Moyer- -Murphy-Whipple Moyer, Abrah
Page 56 and 57: P Paisley, John 400,704 Apr. 2, 188
Page 58: Post- -Pulliam Post, Andrew (Atlant
Page 61: Ruick- -Rust Ruick, Thomas 188,678
Page 64 and 65: Sherman- -Snyder, Antes Sherman, Ev
Page 66: Stone- -Sylvester Stone, Joel 484,6
Page 69: Truesdell- -Trumbull Truesdell, Luc
Page 73 and 74: W Waddell, John A. L. - also see Wa
Page 75: White, T.- -Woodruff White, Timothy
Page 78 and 79: Part II Patent Chronology Ordered b
Page 80 and 81: # McGuffie 1861: Iron bowstring wit
Page 82 and 83: PATENT CHRONOLOGY Lattice Configura
Page 86 and 87: Wall 1881: Half-hip variation. No h
Page 88 and 89: Bowstring Configurations Not all bo
Page 90 and 91: Laird, J. 1869 (Patent No. 94,321):
Page 92 and 93: Bowstring Configurations - Trusses
Page 94 and 95: Howe Configurations A Howe truss is
Page 96 and 97: Howe Configurations William Howe, P
Page 98 and 99: Trusses with Multi-Panel Diagonal S
Page 100 and 101: Suspension Trusses Frederick H. Smi
Page 102 and 103: Trusses with Inclined Verticals Joh
Page 104 and 105: Lenticular Configurations James Bar
Page 106 and 107: Indefinable and One-of-a-kind Fanci
Page 108 and 109: Indefinable and One-of-a-kind Fanci
Page 110 and 111: Sellers 1873: Equalateral triangles
Page 112 and 113: Pratt Family of Trusses with Multi-
Page 114 and 115: A-Frame A sloped top chord variatio
Page 116 and 117: King-Post Configurations Arnold Rei
Page 118: Queen-Post Configurations August Bo
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