Occasional Electronic Publication No. 1 - Society for Industrial ...
Occasional Electronic Publication No. 1 - Society for Industrial ...
Occasional Electronic Publication No. 1 - Society for Industrial ...
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# McGuffie 1861: Iron bowstring with verticals extending to a horizontal top member.<br />
# McGuffie, 1862 Mar.: Iron bowstring with slightly radiating verticals extending to a horizontal top member.<br />
# McGuffie, 1862 May: Timber bowstring with verticals extending to a horizontal top member.<br />
DuBois 1862: Lift drawbridge. Design shows superimposed arch secured to verticals.<br />
Boles 1865: Web of overlapping U-shaped bars and vertical rods.<br />
# Snyder, John 1877: Hollow metal arch and a pair of hollow beams connected by verticals.<br />
# Brenner 1881: Arched bottom chord.<br />
Arch-Braced Trusses<br />
Theodore Burr, Patent <strong>No</strong>. 2769x (1817)<br />
Henry Wilton, Patent <strong>No</strong>. 1,192 (1839)<br />
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