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Linville- -Long
Linville, Jacob – also see Linville & Piper (Keystone Bridge Co., Pittsburgh, Pa.)
34,183 Jan. 11, 1862 Detail for the use of drilled eye-bars for lower chord. Double-intersection
Pratt truss configuration shown. Labeled “iron truss bridge.”
84,288 Nov. 24, 1868 Connection detail of crossed web members at intersection to reduce
length. Double-intersection Warren truss configuration shown. Labeled
“truss bridge.”
145,114 Dec. 2, 1873 Detail. Flat ends for rods. Labeled “truss-frames for bridges.”
Linville, Jacob & John Piper (Keystone Bridge Co., Pittsburgh, Pa.)
50,723 Oct. 31, 1865 Improvement in eye-bar fabrication. Double-intersection Pratt truss
configuration shown.
Linville truss
Not patented ca.1861 Common name for Whipple's trapezoidal truss that utilized wide, forged
eye-bars and wrought-iron posts. Popularized by Jacob Linville (see
above).
Liscom, Levi
76,212 Mar. 31, 1868 *Corbelled timber beams extending to mid-span support, and are in
turn stiffened by a truss carried above them. A bowstring truss is used
as an example. Labeled “truss bridge.”
Litell, William
265,331 Oct. 3, 1882 Timber lattice truss. Three intermediate chords.
Locke, James
627,859 Jun. 27, 1899 *Cable-trussed, built-up, timber girder configuration. Additional double
intersecting struts in end panels.
Lockwood, Rembrandt
51,328 Dec. 5, 1865 *Segmental arch. Labeled “truss bridge.”
Long, George Washington
Not assigned Mar. 10, 1830 All-timber “Howe” truss. Polygonal top chord. Single compression
diagonal in all panels. Patent, although listed in the Patent Office
Index, is missing. However, it was published in several journals
including Sillman's American Journal of Science and Arts, Vol. 18
(1830), pp. 123-5. By today's standards, its configuration would be
known as a Howe although it preceded Howe's patent (which contained
iron verticals) by a decade.
Long, Richard
146,397 Jan. 13, 1874 *Tied arch. V-shaped stirrups suspended from arch to carry floor
beams.
Long, Stephen
5862X Mar. 6, 1830 Timber truss. Cross-braced rectangular panels. Knee braces under
bottom chord at abutments.
9340X Jan. 23, 1836 Timber truss. Cross-braced rectangular panels. Double top chord.
Vertical iron tie anchors into abutments.
1,397 Nov. 7, 1839 Change to 1830 patent. Knee brace extends to top chord.
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