Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 131
5 a> (e, ;Bteciii| runip foi^ 5^eedir|^ Soilef^, … Of f^ofdii^g Watef iindei Seavy Pfe^^uie, witl| Saqd Powef Sttad]:(ii\ei\t iion\ ]^o. 0 to ]Sfo. 6. There is no longer any question as to the most economical manner of feeding boilers. It is to supply a steadyflow, equaling exactly the evaporation. A piunp capable of supplying one hundred…
