Fig. 482.
Fig. 483.
Figs. [484] and [485] are views of a rotary pump driven by steam and largely used for fire apparatus. These pumps are in general use in mills and factories, and can be installed wherever the necessary steam and water supply are available.
The pump is built on a rigid iron base plate, and is furnished with air chamber, water-pressure gauge, oil feeders and everything necessary to make it complete and ready for permanent steam and water connections. The discharge outlets can be adapted for forcing water through either pipe or hose.
A perspective view of this pump is given in Fig. [484] and a sectional plan of the same appliance appears in Fig. [485].
Both engine and pump are of the rotary type and the construction of these parts is precisely as described in connection with its adaptation to use in the Silsby steam fire engine.