Portable steel span for constructions
Item
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Title (Dublin Core)
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Portable steel span for constructions
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Article Title and/or Image Caption (Dublin Core)
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Title: Portable steel span taken 10-tons load
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extracted text (Extract Text)
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PORTABLE steel bridges, capable of sup-
porting 10-ton ‘loads, are used by U. S.
troops for quick crossings of ravines and
narrow streams. Each bridge consists of
two lattice steel girders on which wooden
flooring is laid. To place a girder, a launch-
ing nose fitted with wheels is attached to
the end and 20 men shove it on rollers
across the gap. When it topples down, the
wheels carry it up the opposite bank where
a second crew sets it in an abutment of
earth and wood. Ravines as wide as 108
feet can be spanned in one or two hours.
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Language (Dublin Core)
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eng
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Date Issued (Dublin Core)
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1943-05
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pages (Bibliographic Ontology)
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73
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Rights (Dublin Core)
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Public Domain (Google Digitized)
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Archived by (Dublin Core)
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Matteo Ridolfi
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Marco Bortolami (editor)
Popular Science Monthly, v. 142, n. 5, 1943
