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

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Maish, Joseph
264,724 Sep. 19, 1882 Bowstring truss. Twin-tube arched chord. Crossed, diagonal, metal
rods. Pair of rods used for bottom chord and verticals.
Manley, Gervais
64,340 Apr. 30, 1867 Double-intersecting Warren truss (iron lattice). Light-weight midheight
third chord.
Marks, Thomas
346,118 Jul. 27, 1886 Verticals and cross-braced panels. No top chord. Knee braces at
abutments. Convoluted combination of adjustable parts.
Matlock, David
272,568 Feb. 20, 1883 Angle-block detail for coupling lower joints. Sloping end posts have
strut and tie. Labeled “truss bridge.”
McCallum, Daniel C.
8,224 Jul. 15, 1851 Timber three-chord truss. Flat-curved top chord just below a horizontal
top chord. Crossed diagonals in web panels extend from bottom chord
to curved chord. Slightly radiating verticals extend to horizontal top
chord. Iron tension diagonals in third and fourth full panels. Radiating
struts from abutment to underside of curved chord.
16,446 Jan. 20, 1857 Timber except for diagonal tension rod in fourth panel from abutments.
Curved top chord. Radiating struts in end panels.
McCurdy, David (McCurdy & McDurmut, Lima, Oh.)
104,867 Jun. 28, 1870 *Tied arch. Labeled “truss bridge.”
104,868 Jun. 28, 1870 King-post truss. Curved top chord. Single vertical at mid-span. Labeled
“truss bridge.”
104,869 Jun. 28, 1870 *Detail for a tied pair of struts. Labeled “truss bridge”
McDonald, Joseph
173,863 Feb. 22, 1876 Timber Vierendeel truss configuration. Additional mid-height chord
combined with an A-Frame. Bottom chord is a rod.
McDowell, H. S.
98,699 Jan. 11, 1870 Timber Howe truss configuration with polygonal end panels. Vertical
rods. Paired, crossed diagonals are splayed.
McGiffin, Nathaniel
443,714 Dec. 30, 1890 Timber king-post truss with vertical metal rod and outriggers.
McGuffie, Archabald
33,954 Dec. 17, 1861 Bowstring truss. Tubular arch chord. Verticals extend above arch chord
to a laterally braced horizontal member.
34,311 Feb. 4, 1862 Inverted bowstring truss. Hangers support roadbed below. Labeled
“suspension bridge.”
34,765 Mar. 24, 1862 Bowstring truss. Tubular arch chord. Verticals extend above arch to a
laterally braced horizontal member.
35,381 May 27, 1862 Timber bowstring truss. Radiating timber verticals extend above arch
to a laterally braced horizontal member. Crossed diagonals are rods.
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