Patent Model - Improvement in Truss-Bridges

Maker and role
William Irelan, Patentee
Production date
Jul 09 1878
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Object detail

Media/Materials
Wood, copper, metal
Measurements
4 1/4 x 12 x 6" (10.8 x 30.5 x 15.2cm)
Description
Irelan's patent was intended to "furnish an improved construction of truss-bridge, that is made of a number of connected sections, the braces of which are so attached to each other as to be readily removed individually and repaired, when required, without the use of a trestle below the bridge. The bridge may be constructed of any number of sections, and forms a strong and reliable structure when properly constructed." (Patent Number 205,799)
Object number
2015.14.2639
Currently on display?
Yes

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