US159084A - Improvement in iron bridges - Google Patents

Improvement in iron bridges Download PDF

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US159084A
US159084A US159084DA US159084A US 159084 A US159084 A US 159084A US 159084D A US159084D A US 159084DA US 159084 A US159084 A US 159084A
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improvement
arch
bridges
iron bridges
iron
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges

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  • My invention consists of an improved construction of girder or arch for railroad and other bridges, of two vertical (edgewise) channel or I-beams, with a flat plate riveted on top, transverse plates under side at the posts and feet of the arch, and diagonal or lattice bracing intermediate to the transverse plates, which afi'ords greater strength for resisting the crushing efl'ect on the feet of the arch where the greatest strain exists, and also greater lateral strength along the arch, which is very essential in this form of truss. It also enables the inside of the arch to be painted.
  • Figure 1 is a side elevation of an arch constructed according to my invention, some parts being sectioned.
  • Fig. 2 is a plan of the under side of the arch, and
  • Fig. 3 is a transverse section on line as w of Fig. 1.

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  • Architecture (AREA)
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Description

E. 1. FARNSWUR TH.
- Iron-Bridge.
Patented Jan. 26, 18 75.
UNITED STATES PATENT Darren EDWIN I. FARNSWORTH, OF LEAVENWORTH, KANSAS.
IMPROVEMENT IN IRON BRIDGES.
Specification forming part of Letters Patent No. 159,084, dated January 26, 1875; application filed January 4, 1875.
To all whom it may cancer-n:
Be it known that I, EDWIN I. FARNSWORTII, of Leavenworth, in the county of Leavenworth and State of Kansas, have invented a new and useful Improvement in Bridges, of which the following is a specification:
My invention consists of an improved construction of girder or arch for railroad and other bridges, of two vertical (edgewise) channel or I-beams, with a flat plate riveted on top, transverse plates under side at the posts and feet of the arch, and diagonal or lattice bracing intermediate to the transverse plates, which afi'ords greater strength for resisting the crushing efl'ect on the feet of the arch where the greatest strain exists, and also greater lateral strength along the arch, which is very essential in this form of truss. It also enables the inside of the arch to be painted.
Figure 1 is a side elevation of an arch constructed according to my invention, some parts being sectioned. Fig. 2 is a plan of the under side of the arch, and Fig. 3 is a transverse section on line as w of Fig. 1.
mediate to the transverse plates, all as clearly represented in the drawings.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
The combination, in an arch for bridges, of channel or I-beams A, top plate B, trans verse plates 0, and diagonal intermediate braces l), substantially as specified.
EDWIN I. FARNSWORTH.
Witnesses TIFFIN SINKs, CHAS. MONROE.
US159084D Improvement in iron bridges Expired - Lifetime US159084A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100281632A1 (en) * 2009-05-08 2010-11-11 Meheen H Joe Tunable Load Sharing Arch Bridge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100281632A1 (en) * 2009-05-08 2010-11-11 Meheen H Joe Tunable Load Sharing Arch Bridge
US8752225B2 (en) * 2009-05-08 2014-06-17 H. Joe Meheen Tunable load sharing arch bridge

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