Portable steel span for constructions
Contenuto
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Titolo
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Portable steel span for constructions
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Article Title and/or Image Caption
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Title: Portable steel span taken 10-tons load
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extracted 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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Lingua
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eng
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Data di rilascio
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1943-05
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pagine
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73
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Diritti
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Public Domain (Google Digitized)
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Archived by
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Matteo Ridolfi
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Marco Bortolami (editor)
