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

More documents

Recommendations

Info

Trusses with Inclined Verticals John Foreman, Patent No. 78,797 (1868) Frederick H. Smith, Patent No. 128,449 (1872) George Pegram, Patent No. 314,262 (1885) John Jones, Patent No. 318,626 (1885) 94
Lenticular Configurations Lenticular trusses have both top and bottom chords curved over their entire length. This form is most efficient when the panel points lie along a parabolic curve. Configurations that do not contain diagonals in their webs are not capable of true truss action and are indicated with a # symbol. PATENT CHRONOLOGY Barnes, J. 1849: Chords follow an elliptical or oval curve. Deck located at mid-height. Stanley 1851: Timber top chord. Wire-cable bottom chord. Harvey & Osborn 1856: Timber top chord. Wire suspension bottom chord. Kremser 1866: Lattice web. Mid-height bridge deck. Dieckman 1871: Mid-height horizontal tie. Secondary set of webbing between it and the bottom chord. # Harding 1872: Vertical tension rods connect opposing trussed arches. Conklin 1876: Chords formed with straight segments. Three additional full-span horizontal chords. Douglas 1878: Top and bottom chords composed of three straight segments. Strobel 1884: Series of continuous lenticular trusses joined at inflection point. Douglas 1885: Chord segments between panel points are straight. Panel points all lie on a parabolic curve. Wind struts in end panels. Werner, Feb. 1885: Two lenticular trusses form segments of a three-hinged arch that supports the bridge deck above. Werner, Oct. 1885: Two lenticular trusses form segments of a three-hinged arch. A hanger from the apex supports the mid-span of the bridge deck below. # Pulliam 1893: Trussed timber girder with lenticular appearance. # Semmes 1896: Width as well as depth increases towards mid-span. Web contains only verticals. Not a true truss. 95
Page 1 and 2:
Occasional Electronic Publication N
Page 3 and 4:
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 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 100 and 101: Suspension Trusses Frederick H. Smi
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
show all

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

Create successful ePaper yourself

Delete template?

Save as template?