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

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Boles- -Briggs, A.<br />

Boles, John, Jr. (cont’d)<br />

48,013 May 30, 1865 Truss with U-shaped, curved, web braces plus a full-span arch.<br />

Exuberantly fanciful.<br />

Boller, Alfred<br />

125,117 Apr. 2, 1872 Slightly tapered, laced, compression vertical <strong>for</strong> truss bridges. Labeled<br />

“improvement in wrought-iron bridges.”<br />

Bollman, Wendel – also see Denmead & Bollman (W. Bollman & Co., Baltimore, Md.)<br />

8,624 Jan. 6, 1852 Suspension truss. Radiating diagonals extend to base of each vertical<br />

from top of both end posts.<br />

Bonnell, William F.<br />

130,561 Aug. 20, 1872 Pratt truss variation. Sliding link at junctures of diagonal ties with<br />

chord.<br />

Bonzano, Adolphus – also see Clarke & Bonzano<br />

127,018 May 21, 1872 *Turntable <strong>for</strong> swing-span drawbridges.<br />

Bornemann, August (Bornemann & Sons, Lancaster, Oh.)<br />

219,846 Sep.23, 1879 Queen-post configuration. Timber top chord and posts. Diagonals and<br />

bottom chord are metal rods.<br />

Boutet, Thomas<br />

114,401 May 2, 1871 Truss configuration with cross-braced panels. Parallel post-stressed<br />

cables in deck. End three panels secured to abutment. French in origin.<br />

Bower, Daniel<br />

140,181 Jun. 24, 1873 Timber Howe truss configuration. Block detail <strong>for</strong> connecting the<br />

diagonals. Single diagonal in all panels.<br />

Bradway, Abel & Elijah Valentine<br />

9,090 Jul. 6, 1852 Timber chord truss. Verticals composed of a wood strut and a pair of<br />

rods. Slope of timber web diagonals alternates in adjacent panels.<br />

Overlapping, two-panel-wide, rods in web are bent into a U-shaped<br />

pattern and connected only to the top chord. Convoluted.<br />

Brayton, William<br />

632,985 Sep.12, 1899 *Bascule drawbridge. Labeled “bridge.”<br />

Brels<strong>for</strong>d, William<br />

531,768 Jan. 1, 1895 Queen-post truss. Timber top chord. Verticals, diagonals, and bottom<br />

chord are rods.<br />

624,618 May 9, 1899 Queen-post truss. Tubular top chord and posts. Bottom chord and cross<br />

diagonals are rods. Unique joint detail.<br />

Brenner, August<br />

241,919 May 24, 1881 Arched truss. Ends of arched bottom chord are divided into two curved<br />

pieces, each having a different rate of curvature. Top chord is<br />

horizontal. Mid-span ties are metal rods.<br />

Briggs, Alfred<br />

20,987 Jul. 27, 1858 Timber Warren truss. Rods <strong>for</strong> tensile diagonals. Special bearing<br />

blocks.<br />

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