328 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, 
F @x through which 
¢ the milk must 
be passed, and 
which are al- 
G ways, even 
Dic = when of the 
ay | | simplest pat- 
e I¢r A 
tern, more or 
i | /O | less difficult to 
B keep clean, 
and exceeding- 
Fig. 58. Diagram of creamery arranged upon the ly liable to be 
‘pumping’’ plan. 
neglected. In 
the outline diagrams is a creamery arranged ac- 
cording to either system. By reference to the ground 
plan (Fig. 59, page 329), it may be seen that in 
either case the amount of fioor space required is the 
same. In Fig. 57 is shown the elevation under 
the “gravity” arrangement, with the exception that 
the skimmed milk vat is shown 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. 58, the same letters indicate 
corresponding parts. It will be seen here that the 
milk is-pumped through G from B to C. ‘Referring 
——s 
