262 MARKET DAIRYING 
enabling the buttermaker to put his cream into the churn 
in the morning before there is sufficient steam pressure to 
work pumps with the engine. 
Fig. 54 shows a very satisfactory cream pump which 
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Fig. 54.—Cream pump. 
can be made by any tinner. It simply consists of a heavy 
tin cylinder four inches in diameter which is provided with 
two brass valves having two inch openings. This pump is 
attached to the cream ripener and the cream pumped by 
hand into the churn through an open spout. Both valves 
can be removed so that there is not the slightest difficulty 
in cleaning the pump. Such a pump will readily pump 25 
gallons of cream per minute. 
