REFRIGERATION OF FISH 



591 



tank 61 divided into 

 compartments. The 

 larger compartment 

 is the brine chamber 

 for freezing fish ; an- 

 othe r compartment 

 with a screen at the 

 bottom is for cracked 

 ice. Adjacent to this 

 is a salt compartment 

 with perforated bot- 

 tom. The brine is 

 drawn from under 

 the ice in the ice com- 

 partment, and the 

 greater part of it is 

 pumped through a 

 distributing feeder 

 into the fish-freezing 

 c o m p a r t m ent. A 

 branch of this dis- 

 charge line passes in- 

 to the bottom of the 

 >alt chamber and de- 

 livers brine upward 

 through the salt. 

 This brine spills over 

 into the ice compart- 

 ment, as does also the 

 overflow from the 

 freezing compart - 

 ment. The brine 

 flowing through the 

 ice 02 is thus made up 

 of (a) the warmed, 

 and therefore unsat- 

 urated, brine return- 

 ing from the fish com- 

 partment, and (b) a 

 smaller quantity of 

 approximately satu- 

 rated brine from the 

 salt chamber. The 

 mixture of these two 

 brines then passes 

 through the pump 

 and to the fish. By 

 this means the brine 

 striking the fish can 

 not be saturated, and 

 the maximum rate of 



01 U. S. Patent 1547258, 

 •July 28, 1925. 



82 See also Dahl. D. S. 

 Patent 1177308. Mar. 28. 

 1916. 



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