Centrifugal Pump, Pump Testing Floor | University of Illinois Archives
Sepia-toned photograph showing centrifugal pump, driven by a steam engine. The power delivered to the pump was measured by a steam engine indicator; the quantity of water delivered measured by a weir; and the steam pressure measured by a gauge.
Found in RS 11/1/10, Vol. 4
Image measures 23.6 x 18.4 cm