tting up fodder. In
both these cases it may be a simple matter to connect a small duplex
pump with the installed boiler, as is done frequently in creameries, for
the sake of pumping the necessary water-supply for the house. Whenever
extensive improvements are contemplated, it is well worth while to
consider the possibilities of one boiler operating the different kinds
of machinery referred to. In Fig. 48 is shown a small pump, made by The
Goulds Manufacturing Co., capable of lifting forty-eight gallons of
water per minute against a head of a hundred feet. The diameter of
piston is four inches and the length of stroke is six inches. It is
operated by a belt from a steam engine used for other purposes as well.

[Illustration: FIG. 48.--Pump operated by belt.]

[Illustration: FIG. 49.--Duplex pump, operated directly by steam.]

TABLE XIV

==========+==========+========+=============+=============+=========+
Diameter | Diameter | Length | | | Gallons
of Steam | of Water | of | Gallons per | Revolutions | per
Cylinders | Pistons | Stroke | Revolution | per Minute | Minute
----------+----------+--------+-------------+-------------+---------+
3 | 3/4 | 3 | 0.019 | 80 | 1.5
3 | 1 | 3 | 0.033 | 80 | 2.6
4-1/2 | 1 | 4 | 0.044 | 75 | 3.6
| | | | |
4-1/2 | 1-1/4 | 4 | 0.064 | 75 | 4.8
5-1/4 | 1-1/4 | 5 | 0.08 | 70 | 5.6
5-1/4 | 1-3/4 | 5 | 0.18 | 70 | 12.7
| | | | |
6 | 1-3/4 | 6 | 0.22 | 65 | 14.0
6 | 2 | 6 | 0.29 | 65 | 19.0
6 | 2-1/4 | 6 | 0.38 | 65 | 25.0
| | | | |
7-1/2 | 2-1/2 | 6 | 0.38 | 65 | 25.0
6 | 2-1/2 | 6 | 0.48 | 65 | 31.0
7-1/2 | 2-1/2 | 6 | 0.048 | 65 | 31.0
| | | | |
7-1/2 | 2-3/4 | 6 | 0.056 | 65 | 36.0
9 | 2-3/4 | 6 | 0.056 | 65 | 36.0
9 | 3-1/2 | 6 | 0.079 | 65 | 51.0
==========+==========+