57 



which o. s. (outside stirrers) are attached; c. crank; p. 



pulley. 



Fig. 58 End view of pasteurizer showing double vat 



arrangement. w. c. water chamber; in. c. milk chamber; 



i. v. inside reservoir for 

 milk; o. v. outside reser- 

 voir for water; w. p. 

 water pipe; v. vent of 

 same; i. s. inside stirrer 

 in milk chambers; o. s. 

 outside stirrers, (three se- 

 ries); r. p. binding piece 

 of wood to w f hich i. v. is 

 attached. The ends of this 

 rest on outside wooden 



Fig. 58. yat > - v - 



Fig. 59 Diagrammatic view of pasteurizer from above. 

 in. c. milk chamber bounded by continuous black line; w. c. 

 water reservoir surrounding same; r. and r'. rods from 

 which stirrers are hung in milk and water chamber. 



Fig. 59. 



Left hand of figure shows wooden frame that supports 

 the gearing for stirring; p. the pulley on axle for automatic 

 power; c. hand crank. 



Lower figure S* Face view of one of stirrers in milk 

 chamber. These can be removed from rod (r). Lower halt' 

 of two stirrers is solid so as to mix the milk more thoroughly. 



The apparatus consists of a wooden vat o v Fig. 24, with 

 one or two narrow tin vats I V. 



A rod R, Fig. 57, worked backwards and forwards by a 

 crank, carries the milk paddles I S, and is connected with the 

 two rods IT, which carry the water paddles O S. One pipe 



