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

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Suspension Trusses Frederick H. Smith, Patent No. 60,434 (1866) Edwin Thacher, Patent No. 242,396 (1881) William Stearns, Patent No. 419,897 (1890) Joel Stone, Patent No. 484,686 (1892) 92
Trusses with Inclined Verticals The “Post” truss was an oft-used configuration for long-span railroad bridges from the 1860s to 1870s. It was named after engineer Simeon Post, who popularized the form with inclined verticals, but did not patent it. PATENT CHRONOLOGY Long, S. H. 1847: True verticals with additional tilted verticals in end thirds of span. Long, S. H. 1858: Same as 1847 configuration with addition of a reversed arch. Post, S. ca.1863: A double-intersecting Pratt configuration with verticals that are inclined a half-panel length. Although popular for a period of about 35 years, this configuration was not patented. Foreman 1868: Timber chords and inclined verticals. Double-intersecting diagonal rods. Smith, F. 1869: Drawing shows a “Post truss” configuration, however the patent's focus is the connections not the configuration. Smith, F. 1872: Double-intersecting Pratt configuration. The centerlines of the verticals converge to a point considerably above the center of the truss. Jones, J. H. 1885: Timber. Multi-layered web of inclined verticals, cross-braced panels, and multi-panel struts. Top and bottom chord panel points are offset by a half panel. Pegram 1885: Polygonal top-chord Pratt variation. All segments of the top chord are of the same length, resulting in a progressive tilting of the verticals. Stephen H. Long, Patent No. 5,366 (1847) 93
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Table of Contents Foreword.........
Page 5 and 6:
Introduction: American Truss Bridge
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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 84 and 85: Lattice Configurations Lucius E. Tr
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 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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