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

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Hagg, Lewis – see Webb & Hagg
Halstead, George
91,124 Jun. 8, 1869 Connection detail. Truss block to receive diagonal rods. Labeled “truss
bridge.”
Ham, Joel
24,460 Jun. 21, 1859 Iron Howe truss. Curved top chord and three additional full-span
concentric arches superimposed on the truss.
Hamilton, Edward
78,202 May 26, 1868 *Plate girder swing-span drawbridge. Labeled “truss bridge.”
Hammond, David – also see Hammond & Abbott; Hammond, Adler & Abbott; Hammond Morse & Abbott;
Hammond & Reeves (Wrought Iron Bridge Co., Cleveland, OH)
56,043 Jul. 3, 1866 Bowstring truss. Radiating verticals and cross-bracing in all panels.
184,521 Nov. 21, 1876 Wrought-iron post for truss bridge.
184,522 Nov. 21, 1876 *A pair of T-shaped flanges connected by a web of lattice bars arranged
in a pattern of repetitive triangles.
Hammond, David & Job Abbott (Wrought Iron Bridge Co., Cleveland, OH)
102,392 Apr. 26, 1870 Bowstring truss. Tubular-arch top chord. Web diagonals and radiating
verticals attach to flanges of top-chord sections. Connection points of
web diagonals and chord are inset from radiating verticals. A variety of
top-chord sections are proposed.
102,393 Apr. 26, 1870 Bowstring truss. Tubular-arch top chord. Web diagonals and radiating
verticals penetrate the top chord. Connection points of web diagonals
are inset from radiating verticals. A variety of top-chord sections are
proposed.
102,394 Apr. 26, 1870 Sub-divided Pratt truss configuration. Additional verticals extend from
intersection of crossed diagonals to bottom chord.
150,151 Apr. 28, 1874 Pratt truss configuration. Pony truss with outrigger. All panels have
diagonal cross-bracing. Channel top-chord, star-iron verticals.
150,152 Apr. 28, 1874 Pratt truss configuration. Pony truss with outriggers. All panels have
diagonal cross-bracing. Top chord composed of channel and tee. Ibeam
verticals.
150,153 Apr. 28, 1874 Pratt truss configuration. Top chord composed of channels and a plate.
I-beam verticals.
153,483 Jul. 28, 1874 *Abutment support.
Hammond, David, Michael Adler & Job Abbott (Wrought Iron Bridge Co., Cleveland, Oh.)
135,802, Feb. 11, 1873 Bowstring truss. Several hollow chord proposals for long-spans. All
panels have diagonal cross-bracing between verticals.
Hammond, David, Henry Morse & Job Abbott (Wrought Iron Bridge Co., Cleveland, Oh.)
184,520 Nov. 21, 1876 Pratt truss configuration. Two panel counters and single panel diagonals.
Hammond, David & William Reeves (Wrought Iron Bridge Co., Cleveland, Oh.)
43,202 Jun. 21, 1864 *Tied arch. Vertical and radiating web members originate from adjacent
points along bottom tie. Labeled “truss bridge.”
86,538 Feb. 2, 1869 Bowstring truss. All panels have cross-braces intersecting at a ring.
Sub-vertical strut from the ring to the top chord.
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