238 



Milk and Its Products. 



sary stairs or steps. The pumping system, on 

 the other hand, is economical of labor, but intro- 

 duces one or 

 more pumps, 

 through which 

 the milk must 

 be passed, and 

 which are al- 

 ways, even 

 when of the 

 simplest pat- 

 tern, more or 

 less difficult to 

 keep clean, 

 and exceeding- 

 ly liable to be 

 neglected. In 

 the outline diagrams is a creamery arranged ac- 

 cording to either system. By reference to the gi'ound 

 plan (Fig. 41, page 239), it may be seen that in 

 either case the amount of floor space required is the 

 same. In Fig. 39 is shown the elevation under 

 the "gravity" arrangement, with the exception that 

 the skimmed milk vat is show^n elevated. Here the 

 milk is taken in at A, passes to B the receiving 

 vat, thence to C the tempering vat, thence to D the 

 separator, thence to E the cream vat, and through 

 the pump H to F the skimmed milk vat. In the 

 pumping system, Fig. 40, the same letters indicate 

 corresponding parts. It will be seen here that the 

 inilk is pumped through G from B to C. Referring 



Fi^. 40. Diagram of creamery arranged upon the 

 ' pumping" plan. 



