Hague, Charles Arthur · New York : McGraw Publishing Company · leaf 137
cableinterruption, to a degree which has never been equaled byany machine ever produced for the purpose; and not even bythe improved or high duty engine of the same type. It holdsthe record for durability. But its steam economy was limitedto the possibilities of expanding steam at full stroke… … WORTHINGTON DUPLEX PUMPING ENGINE 115 cylinders alone without cut-off, and with the steam pressuresusually employed. But, of course, the question arose nat-urally enough in time, can this machine, so satisfactory on the
Pumping machinery
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