FISH-LIVER OILS 



509 



"Many of these factors may be difficult to evaluate accurately in advance for the 

 localities being considered. Even estimates made on the spot at the time the contemplated 

 business venture is being initiated v^'ill be subject to considerable error. Therefore, only 

 the factors for which a fairly close approximation is possible are enlarged upon here. 



Fig. 23-4. The internal con- 

 struction of the Nozljector is 

 shown by the cut-away view of 

 this machine. 



(Courtesy Sharpies Corp.) 



Steatning Method 



Let us assume the simplest and most inexpensive conditions, within reason, and set 

 up the approximate equipment requirements for a given capacity of production. The 

 steaming process for low potency shark livers will fall into this category. 



"The livers should be ground in either a conventional meat grinder or in a hammer 

 mill. A vertical hammer mill, capable of disintegrating approximately 2 tons of liver 

 per hour, will cost from $1,200 to $1,800. Smaller sizes would be somewhat less ex- 

 pensive. 



"The ground livers should be transported to the cooking tanks by means of a gear 

 pump to minimize churning of the material. A suitable pump to handle the output of the 

 above-mentioned grinder costs $150 to $300. A trap basin should be installed in the 



