The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 461
s, it may berendered useful to move weights on railways. The combination em-ployed being described precisely similar to that invented and publishedby Medhurst. The only claim set up in the patent being the methodof constructing and using valves as above described. The success ofthis valve has been… … as ^m ^ ^m as ^m- ^ ^ s»^^^^^^vwwtt^^^<<^■^^<■v>w^^v^^
Architecture · Civil engineering · Science
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